diff --git a/changelog.d/medicaid-abd-state-dollar-standards.fixed.md b/changelog.d/medicaid-abd-state-dollar-standards.fixed.md
new file mode 100644
index 00000000000..da5e0826cb9
--- /dev/null
+++ b/changelog.d/medicaid-abd-state-dollar-standards.fixed.md
@@ -0,0 +1 @@
+Use state dollar standards, not shares of the poverty guideline, as the Medicaid income limit for aged, blind and disabled people who do not receive SSI in Alaska, Idaho, New Hampshire, Vermont and Wisconsin (from August 2020), and require income below Idaho's standard.
diff --git a/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/couple.yaml b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/couple.yaml
index 0eb1c1e8aaa..ed905fc42ef 100644
--- a/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/couple.yaml
+++ b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/couple.yaml
@@ -1,4 +1,4 @@
-description: Maximum countable income limit for a couple to qualify for Medicaid under the optional senior or disabled pathway, as percent of Federal Poverty Line. States whose limit is the SSI federal benefit rate are listed in uses_ssi_federal_benefit_rate and omitted here.
+description: Maximum countable income limit for a couple to qualify for Medicaid under the optional senior or disabled pathway, as percent of Federal Poverty Line. States whose limit is the SSI federal benefit rate (uses_ssi_federal_benefit_rate) or a dollar standard of their own (uses_state_standard) in every year are omitted here.
 metadata:
   unit: /1
   label: Medicaid senior or disabled income limit (couple)
@@ -17,9 +17,6 @@ metadata:
     - title: Connecticut CHOICES Benefits Quick Guide (Rev 04.04.2025)
       href: https://portal.ct.gov/ads/-/media/ads-beta/choices/choices-benefits-quick-guide.pdf?rev=3b8c59ca12224218bc4c4438649e7ac7#page=1
 
-AK:
-  2018-01-01: 0.74
-  2021-01-01: 0.83
 AL:
   2018-01-01: 0.75
 AZ:
@@ -45,9 +42,6 @@ GA:
   2018-01-01: 0.75
 HI:
   2018-01-01: 1.00
-ID:
-  2018-01-01: 0.80
-  2021-01-01: 0.78
 IL:
   2018-01-01: 1.00
 IN:
@@ -75,8 +69,6 @@ NE:
   2018-01-01: 1.00
 NV:
   2018-01-01: 0.75
-NH:
-  2018-01-01: 0.75
 NJ:
   2018-01-01: 1.00
 NM:
@@ -103,9 +95,6 @@ TX:
   2018-01-01: 0.75
 UT:
   2018-01-01: 1.00
-VT:
-  2018-01-01: 0.74
-  2021-01-01: 0.80
 VA:
   2018-01-01: 0.80
 WV:
diff --git a/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/individual.yaml b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/individual.yaml
index 489de5e9165..e16b9a522c5 100644
--- a/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/individual.yaml
+++ b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/individual.yaml
@@ -1,4 +1,4 @@
-description: Maximum countable income limit for an individual to qualify for Medicaid under the optional senior or disabled pathway, as percent of Federal Poverty Line. States whose limit is the SSI federal benefit rate are listed in uses_ssi_federal_benefit_rate and omitted here.
+description: Maximum countable income limit for an individual to qualify for Medicaid under the optional senior or disabled pathway, as percent of Federal Poverty Line. States whose limit is the SSI federal benefit rate (uses_ssi_federal_benefit_rate) or a dollar standard of their own (uses_state_standard) in every year are omitted here.
 metadata:
   unit: /1
   label: Medicaid senior or disabled income limit (individual)
@@ -17,9 +17,6 @@ metadata:
     - title: Connecticut CHOICES Benefits Quick Guide (Rev 04.04.2025)
       href: https://portal.ct.gov/ads/-/media/ads-beta/choices/choices-benefits-quick-guide.pdf?rev=3b8c59ca12224218bc4c4438649e7ac7#page=1
 
-AK:
-  2018-01-01: 0.74
-  2021-01-01: 0.83
 AL:
   2018-01-01: 0.75
 AZ:
@@ -45,9 +42,6 @@ GA:
   2018-01-01: 0.75
 HI:
   2018-01-01: 1.00
-ID:
-  2018-01-01: 0.80
-  2021-01-01: 0.78
 IL:
   2018-01-01: 1.00
 IN:
@@ -75,8 +69,6 @@ NE:
   2018-01-01: 1.00
 NV:
   2018-01-01: 0.75
-NH:
-  2018-01-01: 0.75
 NJ:
   2018-01-01: 1.00
 NM:
@@ -103,9 +95,6 @@ TX:
   2018-01-01: 0.75
 UT:
   2018-01-01: 1.00
-VT:
-  2018-01-01: 0.74
-  2021-01-01: 0.80
 VA:
   2018-01-01: 0.80
 WV:
diff --git a/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/requires_income_below_limit.yaml b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/requires_income_below_limit.yaml
index f89e1442506..42781c44f4d 100644
--- a/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/requires_income_below_limit.yaml
+++ b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/requires_income_below_limit.yaml
@@ -28,6 +28,8 @@ metadata:
       href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0502005001
     - title: 42 U.S. Code § 1396a(m)(1)(B) - poverty-level aged and disabled group (income that "does not exceed" the state's standard)
       href: https://www.law.cornell.edu/uscode/text/42/1396a#m_1_B
+    - title: IDAPA 16.03.05.500 - Financial Need ("The participant has financial need if their allowances ... are more than their income")
+      href: https://adminrules.idaho.gov/rules/current/16/160305.pdf#page=39
 
 AK:
   2018-01-01: false
@@ -56,7 +58,7 @@ HI:
 IA:
   2018-01-01: false
 ID:
-  2018-01-01: false
+  2018-01-01: true
 IL:
   2018-01-01: false
 IN:
diff --git a/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/state_standard/adds_ssi_rate.yaml b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/state_standard/adds_ssi_rate.yaml
new file mode 100644
index 00000000000..4f44bc80cc6
--- /dev/null
+++ b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/state_standard/adds_ssi_rate.yaml
@@ -0,0 +1,29 @@
+description: The state's Medicaid income standard for aged, blind, or disabled people who do not receive SSI is the SSI federal benefit rate plus the state's amount, rather than the state's amount alone, if this is true.
+metadata:
+  unit: bool
+  period: year
+  label: Medicaid senior or disabled state standard adds the SSI rate
+  breakdown:
+  - state_code
+  reference:
+    - title: 7 AAC 40.310(a) and (c) - Income Eligibility Standards (dollar amounts raised each January by the Social Security cost-of-living percentage)
+      href: https://www.law.cornell.edu/regulations/alaska/7-AAC-40.310
+    - title: IDAPA 16.03.05.501 - Basic Allowance (raised by the dollar amount of each SSI cost-of-living increase)
+      href: https://adminrules.idaho.gov/rules/current/16/160305.pdf#page=39
+    - title: N.H. Code Admin. R. He-W 858.03(c)-(e) - Adult Category Standard of Need (set from the SSI maximum benefit amount)
+      href: https://gc.nh.gov/rules/state_agencies/he-w800.html
+    - title: Vermont DVHA, Standards Change for Healthcare 2026, SSI/AABD Payment Maximums (SSI plus the AABD supplement)
+      href: https://dvha.vermont.gov/sites/dvha/files/documents/Standards_Change_for_Healthcare_2026.pdf#page=7
+    - title: Wis. Admin. Code DHS 103.04(1)(c) - SSI-related categorically needy income standard ("the maximum SSI payment including state supplement")
+      href: https://docs.legis.wisconsin.gov/code/admin_code/dhs/101/103/04/1/c
+
+AK:
+  2018-01-01: false
+ID:
+  2018-01-01: true
+NH:
+  2018-01-01: true
+VT:
+  2018-01-01: true
+WI:
+  2018-01-01: true
diff --git a/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/state_standard/couple.yaml b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/state_standard/couple.yaml
new file mode 100644
index 00000000000..82302fce096
--- /dev/null
+++ b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/state_standard/couple.yaml
@@ -0,0 +1,72 @@
+description: The state sets this monthly amount as its Medicaid income standard for an aged, blind, or disabled married couple who do not receive SSI, on top of the SSI federal benefit rate for a couple in states that add the two.
+metadata:
+  unit: currency-USD
+  period: month
+  label: Medicaid senior or disabled state income standard (couple)
+  breakdown:
+  - state_code
+  reference:
+    - title: 7 AAC 40.310(a) and (c) - Income Eligibility Standards ($1,047 for an individual and $1,551 for a couple, raised each January by the Social Security cost-of-living percentage)
+      href: https://www.law.cornell.edu/regulations/alaska/7-AAC-40.310
+    - title: Alaska DPA, Adult Public Assistance Need and Maximum Payment Standards, 2018-2021 (need standards for 2018 and 2019)
+      href: https://web.archive.org/web/20210102211125/http://dpaweb.hss.state.ak.us/POLICY/PDF/APA-Standards.pdf#page=1
+    - title: Alaska Aged, Disabled and Long Term Care Medicaid Manual, Addendum 1 - Expanded Refused Cash Income Limits, 2020-2021 (archived January 2, 2021)
+      href: https://web.archive.org/web/20210102215241/http://dpaweb.hss.state.ak.us/manuals/adltc/addenda/addendum_1.htm
+    - title: Alaska Aged, Disabled and Long Term Care Medicaid Manual, Addendum 1 - Expanded Refused Cash Income Limits, 2022-2024 (archived March 9, 2024)
+      href: https://web.archive.org/web/20240309020647/http://dpaweb.hss.state.ak.us/manuals/adltc/addenda/addendum_1.htm
+    - title: Alaska Aged, Disabled and Long Term Care Medicaid Manual, Addendum 1 - Expanded Refused Cash Income Limits, 2024-2026
+      href: http://dpaweb.hss.state.ak.us/manuals/adltc/addenda/addendum_1.htm
+    - title: Alaska Medicaid State Plan Amendment AK-26-0001, income disregard between the Adult Public Assistance standard and $1,845 (individual) or $2,732 (couple), effective January 1, 2026
+      href: https://www.medicaid.gov/medicaid/spa/downloads/AK-26-0001.pdf#page=13
+    - title: IDAPA 16.03.05.501 - Basic Allowance ($545 single and $768 couple, each raised by the dollar amount of each SSI cost-of-living increase since January 1, 2001)
+      href: https://adminrules.idaho.gov/rules/current/16/160305.pdf#page=39
+    - title: "Idaho Medicaid State Plan TN 18-0002, Supplement 6 to Attachment 2.6-A, Income Limits by Living Situation ($783 single and $1,125 couple from April 1, 2018) #page 5-6"
+      href: https://www.medicaid.gov/State-resource-center/Medicaid-State-Plan-Amendments/Downloads/ID/ID-18-0002.pdf#page=5
+    - title: Idaho Department of Health and Welfare, Medicaid Program Income Limits, AABD Cash and AABD Medicaid (January 2026, $1,047 and $1,511 including the $20 disregard)
+      href: https://healthandwelfare.idaho.gov/medicaid-program-income-limits
+    - title: New Hampshire DHHS Supervisory Release SR 18-01, January 2018 Mass Change (standard of need $764 and $1,126; SSI $750 and $1,125)
+      href: https://www.dhhs.nh.gov/sr_htm/html/sr_18-01_dated_01_18.htm
+    - title: New Hampshire DHHS Supervisory Release SR 26-01, January 2026 Mass Change (standard of need $1,008 and $1,492; SSI $994 and $1,491)
+      href: https://www.dhhs.nh.gov/sr_htm/html/sr_26-01_dated_01_26.htm
+    - title: New Hampshire Medical Assistance Manual 601 Table A, Income Limits (SR 26-01)
+      href: https://www.dhhs.nh.gov/mam_htm/html/601_table_a_income_limits_mam.htm
+    - title: "Vermont DCF Bulletin 17-26, SSI/AABD payment levels and P-2740A (effective January 1, 2018) #page 4,11"
+      href: https://outside.vermont.gov/dept/DCF/Shared%20Documents/ESD/Rules-Adopted/B17-26.pdf#page=4
+    - title: Vermont DVHA, 2024 Standards Change for Healthcare, SSI/AABD Payment Maximums (effective January 1, 2024)
+      href: https://dvha.vermont.gov/sites/dvha/files/documents/2024%20Standards%20Change%20for%20Healthcare%20FINAL%20Corrected%2012.19.pdf#page=7
+    - title: "Vermont DVHA, Standards Change for Healthcare 2026, SSI/AABD payment levels and maximums (effective January 1, 2026) #page 2,7"
+      href: https://dvha.vermont.gov/sites/dvha/files/documents/Standards_Change_for_Healthcare_2026.pdf#page=2
+    - title: "Wisconsin DHS Operations Memo 20-13, SSI-Related Medicaid Categorically Needy Income Limit Changes ($866.78 and $1,307.05 from the August 2020 benefit month) #page 1-2"
+      href: https://www.dhs.wisconsin.gov/dms/memos/ops/dms-ops-2020-13.pdf#page=1
+    - title: Wisconsin Medicaid Eligibility Handbook 39.4 - Elderly, Blind, or Disabled Assets and Income Table and SSI Reference Values
+      href: https://www.emhandbooks.wisconsin.gov/meh-ebd/policy_files/39/39.4.htm
+    - title: Wisconsin DHS Operations Memo 26-12, State Supplementary Payment increase (effective May 1, 2026)
+      href: https://www.dhs.wisconsin.gov/dms/memos/ops/dms-ops-2026-12.pdf#page=2
+
+# Alaska: the 7 AAC 40.310 standard. Until 2019 it was the Adult Public
+# Assistance need standard; since January 2020 the state plan disregards
+# income between the Adult Public Assistance standard and this amount.
+AK:
+  2018-01-01: 2_063
+  2019-01-01: 2_121
+  2020-01-01: 2_155
+  2021-01-01: 2_183
+  2022-01-01: 2_312
+  2023-01-01: 2_513
+  2024-01-01: 2_593
+  2025-01-01: 2_658
+  2026-01-01: 2_732
+# Idaho: the AABD basic allowance, equal to the SSI couple rate.
+ID:
+  2018-01-01: 0
+# New Hampshire: the standard of need, $1 above the SSI couple rate in every year from 2018.
+NH:
+  2018-01-01: 1
+# Vermont: the AABD supplement for independent living.
+VT:
+  2018-01-01: 98.88
+  2024-01-01: 105.8
+# Wisconsin: the state supplementary payment for an eligible couple.
+WI:
+  2020-08-01: 132.05
+  2026-05-01: 145.26
diff --git a/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/state_standard/individual.yaml b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/state_standard/individual.yaml
new file mode 100644
index 00000000000..52bc391a012
--- /dev/null
+++ b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/state_standard/individual.yaml
@@ -0,0 +1,72 @@
+description: The state sets this monthly amount as its Medicaid income standard for an aged, blind, or disabled individual who does not receive SSI, on top of the SSI federal benefit rate for an individual in states that add the two.
+metadata:
+  unit: currency-USD
+  period: month
+  label: Medicaid senior or disabled state income standard (individual)
+  breakdown:
+  - state_code
+  reference:
+    - title: 7 AAC 40.310(a) and (c) - Income Eligibility Standards ($1,047 for an individual and $1,551 for a couple, raised each January by the Social Security cost-of-living percentage)
+      href: https://www.law.cornell.edu/regulations/alaska/7-AAC-40.310
+    - title: Alaska DPA, Adult Public Assistance Need and Maximum Payment Standards, 2018-2021 (need standards for 2018 and 2019)
+      href: https://web.archive.org/web/20210102211125/http://dpaweb.hss.state.ak.us/POLICY/PDF/APA-Standards.pdf#page=1
+    - title: Alaska Aged, Disabled and Long Term Care Medicaid Manual, Addendum 1 - Expanded Refused Cash Income Limits, 2020-2021 (archived January 2, 2021)
+      href: https://web.archive.org/web/20210102215241/http://dpaweb.hss.state.ak.us/manuals/adltc/addenda/addendum_1.htm
+    - title: Alaska Aged, Disabled and Long Term Care Medicaid Manual, Addendum 1 - Expanded Refused Cash Income Limits, 2022-2024 (archived March 9, 2024)
+      href: https://web.archive.org/web/20240309020647/http://dpaweb.hss.state.ak.us/manuals/adltc/addenda/addendum_1.htm
+    - title: Alaska Aged, Disabled and Long Term Care Medicaid Manual, Addendum 1 - Expanded Refused Cash Income Limits, 2024-2026
+      href: http://dpaweb.hss.state.ak.us/manuals/adltc/addenda/addendum_1.htm
+    - title: Alaska Medicaid State Plan Amendment AK-26-0001, income disregard between the Adult Public Assistance standard and $1,845 (individual) or $2,732 (couple), effective January 1, 2026
+      href: https://www.medicaid.gov/medicaid/spa/downloads/AK-26-0001.pdf#page=13
+    - title: IDAPA 16.03.05.501 - Basic Allowance ($545 single and $768 couple, each raised by the dollar amount of each SSI cost-of-living increase since January 1, 2001)
+      href: https://adminrules.idaho.gov/rules/current/16/160305.pdf#page=39
+    - title: "Idaho Medicaid State Plan TN 18-0002, Supplement 6 to Attachment 2.6-A, Income Limits by Living Situation ($783 single and $1,125 couple from April 1, 2018) #page 5-6"
+      href: https://www.medicaid.gov/State-resource-center/Medicaid-State-Plan-Amendments/Downloads/ID/ID-18-0002.pdf#page=5
+    - title: Idaho Department of Health and Welfare, Medicaid Program Income Limits, AABD Cash and AABD Medicaid (January 2026, $1,047 and $1,511 including the $20 disregard)
+      href: https://healthandwelfare.idaho.gov/medicaid-program-income-limits
+    - title: New Hampshire DHHS Supervisory Release SR 18-01, January 2018 Mass Change (standard of need $764 and $1,126; SSI $750 and $1,125)
+      href: https://www.dhhs.nh.gov/sr_htm/html/sr_18-01_dated_01_18.htm
+    - title: New Hampshire DHHS Supervisory Release SR 26-01, January 2026 Mass Change (standard of need $1,008 and $1,492; SSI $994 and $1,491)
+      href: https://www.dhhs.nh.gov/sr_htm/html/sr_26-01_dated_01_26.htm
+    - title: New Hampshire Medical Assistance Manual 601 Table A, Income Limits (SR 26-01)
+      href: https://www.dhhs.nh.gov/mam_htm/html/601_table_a_income_limits_mam.htm
+    - title: "Vermont DCF Bulletin 17-26, SSI/AABD payment levels and P-2740A (effective January 1, 2018) #page 4,11"
+      href: https://outside.vermont.gov/dept/DCF/Shared%20Documents/ESD/Rules-Adopted/B17-26.pdf#page=4
+    - title: Vermont DVHA, 2024 Standards Change for Healthcare, SSI/AABD Payment Maximums (effective January 1, 2024)
+      href: https://dvha.vermont.gov/sites/dvha/files/documents/2024%20Standards%20Change%20for%20Healthcare%20FINAL%20Corrected%2012.19.pdf#page=7
+    - title: "Vermont DVHA, Standards Change for Healthcare 2026, SSI/AABD payment levels and maximums (effective January 1, 2026) #page 2,7"
+      href: https://dvha.vermont.gov/sites/dvha/files/documents/Standards_Change_for_Healthcare_2026.pdf#page=2
+    - title: "Wisconsin DHS Operations Memo 20-13, SSI-Related Medicaid Categorically Needy Income Limit Changes ($866.78 and $1,307.05 from the August 2020 benefit month) #page 1-2"
+      href: https://www.dhs.wisconsin.gov/dms/memos/ops/dms-ops-2020-13.pdf#page=1
+    - title: Wisconsin Medicaid Eligibility Handbook 39.4 - Elderly, Blind, or Disabled Assets and Income Table and SSI Reference Values
+      href: https://www.emhandbooks.wisconsin.gov/meh-ebd/policy_files/39/39.4.htm
+    - title: Wisconsin DHS Operations Memo 26-12, State Supplementary Payment increase (effective May 1, 2026)
+      href: https://www.dhs.wisconsin.gov/dms/memos/ops/dms-ops-2026-12.pdf#page=2
+
+# Alaska: the 7 AAC 40.310 standard. Until 2019 it was the Adult Public
+# Assistance need standard; since January 2020 the state plan disregards
+# income between the Adult Public Assistance standard and this amount.
+AK:
+  2018-01-01: 1_393
+  2019-01-01: 1_432
+  2020-01-01: 1_455
+  2021-01-01: 1_474
+  2022-01-01: 1_561
+  2023-01-01: 1_697
+  2024-01-01: 1_751
+  2025-01-01: 1_795
+  2026-01-01: 1_845
+# Idaho: the AABD basic allowance, $33 above the SSI rate.
+ID:
+  2018-01-01: 33
+# New Hampshire: the standard of need, $14 above the SSI rate in every year from 2018.
+NH:
+  2018-01-01: 14
+# Vermont: the AABD supplement for independent living.
+VT:
+  2018-01-01: 52.04
+  2024-01-01: 55.68
+# Wisconsin: the state supplementary payment for an eligible individual.
+WI:
+  2020-08-01: 83.78
+  2026-05-01: 92.16
diff --git a/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/uses_state_standard.yaml b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/uses_state_standard.yaml
new file mode 100644
index 00000000000..cac2a3aadf3
--- /dev/null
+++ b/policyengine_us/parameters/gov/hhs/medicaid/eligibility/categories/senior_or_disabled/income/limit/uses_state_standard.yaml
@@ -0,0 +1,134 @@
+description: The state tests the Medicaid income of aged, blind, or disabled people who do not receive SSI against a monthly dollar standard of its own, rather than a share of the federal poverty guideline, if this is true.
+metadata:
+  unit: bool
+  period: year
+  label: Medicaid senior or disabled income limit is a state dollar standard
+  breakdown:
+  - state_code
+  reference:
+    - title: 42 CFR 435.210 - Optional eligibility for individuals who meet the income and resource requirements of the cash assistance programs
+      href: https://www.ecfr.gov/current/title-42/section-435.210
+    - title: 7 AAC 100.400(a)(17) - Applies the Adult Public Assistance income eligibility standards of 7 AAC 40.310 to Medicaid for aged and disabled people
+      href: https://www.law.cornell.edu/regulations/alaska/7-AAC-100.400
+    - title: 7 AAC 100.410(c) - Medicaid for an individual eligible for SSI or Adult Public Assistance who chooses not to receive the cash benefit
+      href: https://www.law.cornell.edu/regulations/alaska/7-AAC-100.410
+    - title: Alaska Aged, Disabled and Long Term Care Medicaid Manual 530 C - Use of the Refused Cash Medicaid subtype (from January 2020)
+      href: http://dpaweb.hss.state.ak.us/manuals/adltc/530_ssi_and_apa_related_categories/530_ssi_and_apa_related_categories.htm
+    - title: "IDAPA 16.03.05.301.01 (AABD-Medicaid without applying for SSI), 16.03.05.500 (financial need) and 16.03.05.501 (basic allowance) #page 28,39"
+      href: https://adminrules.idaho.gov/rules/current/16/160305.pdf#page=28
+    - title: "Idaho Medicaid State Plan TN 18-0002, Supplement 6 to Attachment 2.6-A, Income Limits by Living Situation #page 5-6"
+      href: https://www.medicaid.gov/State-resource-center/Medicaid-State-Plan-Amendments/Downloads/ID/ID-18-0002.pdf#page=5
+    - title: N.H. Code Admin. R. He-W 802.04(b)(1) (categorically needy group of 42 CFR 435.210) and He-W 858.03 (adult category standard of need)
+      href: https://gc.nh.gov/rules/state_agencies/he-w800.html
+    - title: "Vermont Health Benefits Eligibility and Enrollment Rules § 8.05(b) - Individual who is SSI-eligible (income \"at or below the SSI/AABD payment level\") #page 10-11"
+      href: https://humanservices.vermont.gov/sites/ahsnew/files/documents/HBEE-Part-2-Eligibility-Standards.pdf#page=10
+    - title: Wis. Admin. Code DHS 103.04(1)(c) - SSI-related categorically needy income standard ("the maximum SSI payment including state supplement")
+      href: https://docs.legis.wisconsin.gov/code/admin_code/dhs/101/103/04/1/c
+    - title: "Wisconsin DHS Operations Memo 20-13, SSI-Related Medicaid Categorically Needy Income Limit Changes (fixed amounts from the August 2020 benefit month) #page 1-2"
+      href: https://www.dhs.wisconsin.gov/dms/memos/ops/dms-ops-2020-13.pdf#page=1
+
+AK:
+  2018-01-01: true
+AL:
+  2018-01-01: false
+AR:
+  2018-01-01: false
+AZ:
+  2018-01-01: false
+CA:
+  2018-01-01: false
+CO:
+  2018-01-01: false
+CT:
+  2018-01-01: false
+DC:
+  2018-01-01: false
+DE:
+  2018-01-01: false
+FL:
+  2018-01-01: false
+GA:
+  2018-01-01: false
+HI:
+  2018-01-01: false
+IA:
+  2018-01-01: false
+ID:
+  2018-01-01: true
+IL:
+  2018-01-01: false
+IN:
+  2018-01-01: false
+KS:
+  2018-01-01: false
+KY:
+  2018-01-01: false
+LA:
+  2018-01-01: false
+MA:
+  2018-01-01: false
+MD:
+  2018-01-01: false
+ME:
+  2018-01-01: false
+MI:
+  2018-01-01: false
+MN:
+  2018-01-01: false
+MO:
+  2018-01-01: false
+MS:
+  2018-01-01: false
+MT:
+  2018-01-01: false
+NC:
+  2018-01-01: false
+ND:
+  2018-01-01: false
+NE:
+  2018-01-01: false
+NH:
+  2018-01-01: true
+NJ:
+  2018-01-01: false
+NM:
+  2018-01-01: false
+NV:
+  2018-01-01: false
+NY:
+  2018-01-01: false
+OH:
+  2018-01-01: false
+OK:
+  2018-01-01: false
+OR:
+  2018-01-01: false
+PA:
+  2018-01-01: false
+RI:
+  2018-01-01: false
+SC:
+  2018-01-01: false
+SD:
+  2018-01-01: false
+TN:
+  2018-01-01: false
+TX:
+  2018-01-01: false
+UT:
+  2018-01-01: false
+VA:
+  2018-01-01: false
+VT:
+  2018-01-01: true
+WA:
+  2018-01-01: false
+# Until July 2020 Wisconsin's standard added the person's shelter costs up to a
+# cap, so the share of the poverty guideline is kept for those years.
+WI:
+  2018-01-01: false
+  2020-08-01: true
+WV:
+  2018-01-01: false
+WY:
+  2018-01-01: false
diff --git a/policyengine_us/tests/policy/baseline/gov/hhs/medicaid/eligibility/categories/is_209b_ssi_recipient_income_eligible_for_medicaid.yaml b/policyengine_us/tests/policy/baseline/gov/hhs/medicaid/eligibility/categories/is_209b_ssi_recipient_income_eligible_for_medicaid.yaml
index dd728b65cfc..82e395efa81 100644
--- a/policyengine_us/tests/policy/baseline/gov/hhs/medicaid/eligibility/categories/is_209b_ssi_recipient_income_eligible_for_medicaid.yaml
+++ b/policyengine_us/tests/policy/baseline/gov/hhs/medicaid/eligibility/categories/is_209b_ssi_recipient_income_eligible_for_medicaid.yaml
@@ -161,3 +161,37 @@
     # 22,000 - 400 = 21,600, within the 21,648 blind couple standard
     # (ceil(21,640 / 12) x 12) but over the 18,396 aged/disabled standard.
     is_209b_ssi_recipient_income_eligible_for_medicaid: [true, true]
+
+# New Hampshire tests SSI recipients against its standard of need for an
+# independent couple, $1,492 a month in 2026 (SR 26-01; MAM 601 Table A;
+# He-W 858.03), the SSI couple rate plus $1. This couple has $720 a month of
+# Social Security each: $1,420 of countable income after the $20 couple
+# disregard, so they receive $71 a month of SSI. 75% of the 2026 two-person
+# poverty guideline ($1,353 a month) would deny them unless they spent down.
+- name: Case 10, New Hampshire SSI couple under the standard of need qualifies without spenddown.
+  period: 2026
+  input:
+    people:
+      person1:
+        age: 72
+        medicaid_optional_senior_or_disabled_countable_income: 8_520
+        medicaid_medically_needy_medical_expenses: 0
+      person2:
+        age: 70
+        medicaid_optional_senior_or_disabled_countable_income: 8_520
+        medicaid_medically_needy_medical_expenses: 0
+    tax_units:
+      tax_unit:
+        members: [person1, person2]
+        tax_unit_is_joint: true
+    marital_units:
+      marital_unit:
+        members: [person1, person2]
+    households:
+      household:
+        members: [person1, person2]
+        state_code: NH
+  output:
+    # (1,491 + 1) x 12 = 17,904; combined income 17,040.
+    medicaid_optional_senior_or_disabled_income_limit: [17_904, 17_904]
+    is_209b_ssi_recipient_income_eligible_for_medicaid: [true, true]
diff --git a/policyengine_us/tests/policy/baseline/gov/hhs/medicaid/eligibility/categories/medicaid_optional_senior_or_disabled_income_limit.yaml b/policyengine_us/tests/policy/baseline/gov/hhs/medicaid/eligibility/categories/medicaid_optional_senior_or_disabled_income_limit.yaml
index 0b6ce7ffb1f..72b96ab0dc2 100644
--- a/policyengine_us/tests/policy/baseline/gov/hhs/medicaid/eligibility/categories/medicaid_optional_senior_or_disabled_income_limit.yaml
+++ b/policyengine_us/tests/policy/baseline/gov/hhs/medicaid/eligibility/categories/medicaid_optional_senior_or_disabled_income_limit.yaml
@@ -409,3 +409,131 @@
   output:
     # 967 x 12
     medicaid_optional_senior_or_disabled_income_limit: [11_604]
+
+# Alaska tests these people against the 7 AAC 40.310 standard, which the
+# state plan reaches by disregarding income between the Adult Public
+# Assistance standard ($1,356 and $2,019 a month in 2026) and $1,845 for an
+# individual or $2,732 for a couple (AK-26-0001; ADLTC Manual Addendum 1).
+# The couple here has $1,376 a month of Social Security each, $2,732 of
+# countable income after the $20 disregard: exactly the couple standard,
+# which "may not exceed" allows (7 AAC 40.230). 83% of Alaska's 2026
+# two-person poverty guideline would be $1,871 a month.
+- name: Alaska couple with income at the 2026 couple standard is eligible
+  period: 2026
+  input:
+    people:
+      person1:
+        age: 70
+        medicaid_optional_senior_or_disabled_countable_income: 16_392
+      person2:
+        age: 68
+        medicaid_optional_senior_or_disabled_countable_income: 16_392
+    tax_units:
+      tax_unit:
+        members: [person1, person2]
+        tax_unit_is_joint: true
+    marital_units:
+      marital_unit:
+        members: [person1, person2]
+    households:
+      household:
+        members: [person1, person2]
+        state_code: AK
+  output:
+    # 2,732 x 12
+    medicaid_optional_senior_or_disabled_income_limit: [32_784, 32_784]
+    is_optional_senior_or_disabled_income_eligible: [true, true]
+
+# Vermont tests these people against the SSI/AABD payment level, "at or
+# below" (HBEE § 8.05(b)): the SSI couple rate of $1,491 plus the $105.80
+# AABD supplement, $1,596.80 a month in 2026 (DVHA Standards Change for
+# Healthcare 2026). The couple here has $808.40 a month of Social Security
+# each, $1,596.80 of countable income after the $20 disregard. 80% of the
+# 2026 two-person poverty guideline would be $1,443 a month.
+- name: Vermont couple with income at the 2026 SSI/AABD couple level is eligible
+  period: 2026
+  input:
+    people:
+      person1:
+        age: 72
+        medicaid_optional_senior_or_disabled_countable_income: 9_580.8
+      person2:
+        age: 70
+        medicaid_optional_senior_or_disabled_countable_income: 9_580.8
+    tax_units:
+      tax_unit:
+        members: [person1, person2]
+        tax_unit_is_joint: true
+    marital_units:
+      marital_unit:
+        members: [person1, person2]
+    households:
+      household:
+        members: [person1, person2]
+        state_code: VT
+  output:
+    # (1,491 + 105.80) x 12
+    medicaid_optional_senior_or_disabled_income_limit:
+      [19_161.6, 19_161.6]
+    is_optional_senior_or_disabled_income_eligible: [true, true]
+
+# Wisconsin's categorically needy standard is "the maximum SSI payment
+# including state supplement" (DHS 103.04(1)(c)): $994 plus the $83.78
+# supplement, $1,077.78 a month from January 2026 (MEH 39.4.1). 100% of the
+# poverty guideline ($1,330) is Wisconsin's medically needy limit, so a
+# person with $1,097.83 a month of Social Security ($1,077.83 countable) is
+# over the categorically needy standard by five cents a month.
+- name: Wisconsin individual just over the 2026 categorically needy standard is ineligible
+  period: 2026
+  input:
+    people:
+      person1:
+        age: 70
+        medicaid_optional_senior_or_disabled_countable_income: 12_934
+    households:
+      household:
+        members: [person1]
+        state_code: WI
+  output:
+    # (994 + 83.78) x 12
+    medicaid_optional_senior_or_disabled_income_limit: [12_933.36]
+    is_optional_senior_or_disabled_income_eligible: [false]
+
+# Until July 2020 Wisconsin's standard was a base amount plus the person's
+# shelter costs up to a cap (DHS Operations Memo 20-13), so 2020 keeps the
+# share of the poverty guideline: 0.83 x 12,760.
+- name: Wisconsin keeps the poverty guideline share before August 2020
+  period: 2020
+  input:
+    people:
+      person1:
+        age: 70
+    households:
+      household:
+        members: [person1]
+        state_code: WI
+  output:
+    medicaid_optional_senior_or_disabled_income_limit: [10_590.8]
+
+# Idaho tests these people against the AABD basic allowance (IDAPA
+# 16.03.05.301.01 and 501): $545 raised by each dollar SSI increase since
+# 2001, $1,027 a month in 2026, $33 above the SSI rate. DHW publishes it as
+# a $1,047 gross limit including the $20 disregard. A person has financial
+# need only if the allowance is "more than their income" (IDAPA
+# 16.03.05.500), so $1,047 of Social Security ($1,027 countable) does not
+# qualify. 78% of the 2026 one-person guideline would be $1,037 a month.
+- name: Idaho individual with income equal to the 2026 AABD allowance is ineligible
+  period: 2026
+  input:
+    people:
+      person1:
+        age: 70
+        medicaid_optional_senior_or_disabled_countable_income: 12_324
+    households:
+      household:
+        members: [person1]
+        state_code: ID
+  output:
+    # (994 + 33) x 12
+    medicaid_optional_senior_or_disabled_income_limit: [12_324]
+    is_optional_senior_or_disabled_income_eligible: [false]
diff --git a/policyengine_us/tests/unit/test_medicaid_abd_ssi_rate_standard_properties.py b/policyengine_us/tests/unit/test_medicaid_abd_ssi_rate_standard_properties.py
index f9f38924c16..929105cea3b 100644
--- a/policyengine_us/tests/unit/test_medicaid_abd_ssi_rate_standard_properties.py
+++ b/policyengine_us/tests/unit/test_medicaid_abd_ssi_rate_standard_properties.py
@@ -38,7 +38,9 @@
   of income gets Medicaid without SSI at or above the rate.
 
 A last test checks that states which are not flagged keep the share of the
-poverty guideline that their parameter gives.
+poverty guideline that their parameter gives. States with a dollar standard
+of their own (`uses_state_standard`) are tested in
+medicaid_optional_senior_or_disabled_income_limit.yaml.
 """
 
 import numpy as np
@@ -91,6 +93,12 @@
 # Annual dollars around the standard: far below, one month's dollar below,
 # exactly at, one dollar above, and well above.
 OFFSETS = [-6_000, -12, -1, 0, 1, 12, 42, 600, 6_000]
+# States with a dollar standard of their own (uses_state_standard.yaml). Of
+# these, Idaho also requires income below the standard: a person has
+# financial need if "their allowances ... are more than their income"
+# (IDAPA 16.03.05.500).
+STATE_STANDARD_STATES = ["AK", "ID", "NH", "VT", "WI"]
+STATE_STANDARD_BELOW_ONLY_STATES = ["ID"]
 
 SYSTEM = CountryTaxBenefitSystem()
 
@@ -140,7 +148,9 @@ def test_ssi_rate_states_match_their_rules(year):
 @pytest.mark.parametrize("year", YEARS)
 def test_below_only_states_match_their_rules(year):
     flags = limit_parameters(year).requires_income_below_limit
-    assert states_where(flags) == BELOW_ONLY_STATES
+    assert states_where(flags) == sorted(
+        BELOW_ONLY_STATES + STATE_STANDARD_BELOW_ONLY_STATES
+    )
 
 
 @pytest.mark.parametrize("couple", [False, True])
@@ -236,7 +246,9 @@ def test_unflagged_states_keep_their_share_of_the_poverty_guideline(year, couple
     # Missouri publishes whole-dollar monthly standards and is tested in
     # medicaid_optional_senior_or_disabled_income_limit.yaml.
     states = [
-        state for state in STATES if state not in SSI_RATE_STATES and state != "MO"
+        state
+        for state in STATES
+        if state not in SSI_RATE_STATES + STATE_STANDARD_STATES and state != "MO"
     ]
     simulation = unit_simulation(year, states, couple)
     limit = simulation.calculate(
diff --git a/policyengine_us/variables/gov/hhs/medicaid/eligibility/categories/medicaid_optional_senior_or_disabled_income_limit.py b/policyengine_us/variables/gov/hhs/medicaid/eligibility/categories/medicaid_optional_senior_or_disabled_income_limit.py
index cb5260bda63..cb5653ff04c 100644
--- a/policyengine_us/variables/gov/hhs/medicaid/eligibility/categories/medicaid_optional_senior_or_disabled_income_limit.py
+++ b/policyengine_us/variables/gov/hhs/medicaid/eligibility/categories/medicaid_optional_senior_or_disabled_income_limit.py
@@ -52,8 +52,19 @@ def formula(person, period, parameters):
         ssi = parameters(period).gov.ssa.ssi.amount
         ssi_rate = where(is_couple, ssi.couple, ssi.individual) * MONTHS_IN_YEAR
         uses_ssi_rate = p.income.limit.uses_ssi_federal_benefit_rate[state].astype(bool)
+        # Other states set a monthly dollar standard of their own. In most it
+        # is the SSI rate plus a state amount, such as the state supplement.
+        standard = p.income.limit.state_standard
+        state_amount = where(
+            is_couple, standard.couple[state], standard.individual[state]
+        )
+        adds_ssi_rate = standard.adds_ssi_rate[state].astype(bool)
+        state_standard = state_amount * MONTHS_IN_YEAR + where(
+            adds_ssi_rate, ssi_rate, 0
+        )
+        uses_state_standard = p.income.limit.uses_state_standard[state].astype(bool)
         return select(
-            [is_mo, uses_ssi_rate],
-            [mo_monthly_limit * MONTHS_IN_YEAR, ssi_rate],
+            [is_mo, uses_ssi_rate, uses_state_standard],
+            [mo_monthly_limit * MONTHS_IN_YEAR, ssi_rate, state_standard],
             default=limit_pct * unit_fpg,
         )