MaxGhenis · Nov 5, 2026 · Nov 2, 2026 · Nov 2, 2026 · Nov 3, 2026 · Nov 3, 2026
diff --git a/changelog.d/vt-2017-taxable-income.fixed.md b/changelog.d/vt-2017-taxable-income.fixed.md
@@ -0,0 +1 @@
+Start Vermont's 2017 taxable income from federal taxable income, with the former 32 V.S.A. § 5811(21) itemized deduction addback, additions and subtractions, and add the 2017 federal standard deduction amounts.
diff --git a/policyengine_us/parameters/gov/irs/deductions/standard/aged_or_blind/amount.yaml b/policyengine_us/parameters/gov/irs/deductions/standard/aged_or_blind/amount.yaml
@@ -1,5 +1,8 @@
 description: Additional standard deduction for blind and aged
 SINGLE:
+  2015-01-01: 1_550
+  2016-01-01: 1_550
+  2017-01-01: 1_550
   2018-01-01: 1_600
   2019-01-01: 1_650
   2021-01-01: 1_700
@@ -9,6 +12,9 @@ SINGLE:
   2025-01-01: 2_000
   2026-01-01: 2_050
 JOINT:
+  2015-01-01: 1_250
+  2016-01-01: 1_250
+  2017-01-01: 1_250
   2018-01-01: 1_300
   2019-01-01: 1_300
   2021-01-01: 1_350
@@ -18,6 +24,9 @@ JOINT:
   2025-01-01: 1_600
   2026-01-01: 1_650
 SEPARATE:
+  2015-01-01: 1_250
+  2016-01-01: 1_250
+  2017-01-01: 1_250
   2018-01-01: 1_300
   2019-01-01: 1_300
   2021-01-01: 1_350
@@ -27,6 +36,9 @@ SEPARATE:
   2025-01-01: 1_600
   2026-01-01: 1_650
 HEAD_OF_HOUSEHOLD:
+  2015-01-01: 1_550
+  2016-01-01: 1_550
+  2017-01-01: 1_550
   2018-01-01: 1_600
   2019-01-01: 1_650
   2021-01-01: 1_700
@@ -36,6 +48,9 @@ HEAD_OF_HOUSEHOLD:
   2025-01-01: 2_000
   2026-01-01: 2_050
 SURVIVING_SPOUSE:
+  2015-01-01: 1_250
+  2016-01-01: 1_250
+  2017-01-01: 1_250
   2018-01-01: 1_300
   2019-01-01: 1_300
   2021-01-01: 1_350
@@ -52,6 +67,12 @@ metadata:
   period: year
   propagate_metadata_to_children: true
   reference:
+    - title: 2017 IRS data release (Rev. Proc. 2016-55)
+      href: https://www.irs.gov/pub/irs-drop/rp-16-55.pdf#page=15
+    - title: 2016 IRS data release (Rev. Proc. 2015-53)
+      href: https://www.irs.gov/pub/irs-drop/rp-15-53.pdf#page=14
+    - title: 2015 IRS data release (Rev. Proc. 2014-61)
+      href: https://www.irs.gov/pub/irs-drop/rp-14-61.pdf#page=13
     - title: 2026 IRS data release
       href: https://www.irs.gov/pub/irs-drop/rp-25-32.pdf#page=18
     - title: 2025 IRS data release

diff --git a/policyengine_us/parameters/gov/irs/deductions/standard/amount.yaml b/policyengine_us/parameters/gov/irs/deductions/standard/amount.yaml
@@ -1,6 +1,9 @@
 description: Federal deduction from AGI if not itemizing.
 
 SINGLE:
+  2015-01-01: 6_300
+  2016-01-01: 6_300
+  2017-01-01: 6_350
   2018-01-01: 12_000
   2019-01-01: 12_200
   2020-01-01: 12_400
@@ -11,6 +14,9 @@ SINGLE:
   2025-01-01: 15_750
   2026-01-01: 16_100
 JOINT:
+  2015-01-01: 12_600
+  2016-01-01: 12_600
+  2017-01-01: 12_700
   2018-01-01: 24_000
   2019-01-01: 24_400
   2020-01-01: 24_800
@@ -21,6 +27,9 @@ JOINT:
   2025-01-01: 31_500
   2026-01-01: 32_200
 SEPARATE:
+  2015-01-01: 6_300
+  2016-01-01: 6_300
+  2017-01-01: 6_350
   2018-01-01: 12_000
   2019-01-01: 12_200
   2020-01-01: 12_400
@@ -31,6 +40,9 @@ SEPARATE:
   2025-01-01: 15_750
   2026-01-01: 16_100
 HEAD_OF_HOUSEHOLD:
+  2015-01-01: 9_250
+  2016-01-01: 9_300
+  2017-01-01: 9_350
   2018-01-01: 18_000
   2019-01-01: 18_350
   2020-01-01: 18_650
@@ -41,6 +53,9 @@ HEAD_OF_HOUSEHOLD:
   2025-01-01: 23_625
   2026-01-01: 24_150
 SURVIVING_SPOUSE:
+  2015-01-01: 12_600
+  2016-01-01: 12_600
+  2017-01-01: 12_700
   2018-01-01: 24_000
   2019-01-01: 24_400
   2020-01-01: 24_800
@@ -76,6 +91,12 @@ metadata:
       href: https://www.irs.gov/pub/irs-drop/rp-19-44.pdf
     - title: 2019 IRS data release
       href: https://www.irs.gov/pub/irs-drop/rp-18-57.pdf
+    - title: 2017 IRS data release (Rev. Proc. 2016-55)
+      href: https://www.irs.gov/pub/irs-drop/rp-16-55.pdf#page=15
+    - title: 2016 IRS data release (Rev. Proc. 2015-53)
+      href: https://www.irs.gov/pub/irs-drop/rp-15-53.pdf#page=13
+    - title: 2015 IRS data release (Rev. Proc. 2014-61)
+      href: https://www.irs.gov/pub/irs-drop/rp-14-61.pdf#page=13
     - title: CBO Tax Parameters and Effective Marginal Tax Rates | Feb 2024
       # 1. Tax Parameters.
       href: https://www.cbo.gov/system/files/2024-02/53724-2024-02-Tax-Parameters.xlsx

diff --git a/...ne_us/parameters/gov/states/vt/tax/income/deductions/itemized_addback/other_multiple.yaml b/...ne_us/parameters/gov/states/vt/tax/income/deductions/itemized_addback/other_multiple.yaml
@@ -0,0 +1,10 @@
+description: Vermont adds back itemized deductions, other than income taxes, medical expenses and charitable contributions, in excess of this multiple of the federal standard deduction, under former 32 V.S.A. § 5811(21)(A)(iv).
+values:
+  2017-01-01: 2.5
+metadata:
+  unit: /1
+  period: year
+  label: Vermont 2017 other itemized deduction addback standard deduction multiple
+  reference:
+    - title: 2017 Vt. Acts No. 73, § 13a (former 32 V.S.A. § 5811(21)(A)(iii)-(iv)) #page 21-22
+      href: https://legislature.vermont.gov/Documents/2018/Docs/ACTS/ACT073/ACT073%20As%20Enacted.pdf#page=21
diff --git a/...e_us/tests/policy/baseline/gov/irs/deductions/standard/additional_standard_deduction.yaml b/...e_us/tests/policy/baseline/gov/irs/deductions/standard/additional_standard_deduction.yaml
@@ -0,0 +1,73 @@
+- name: 2017 aged single filer adds $1,550
+  period: 2017
+  input:
+    filing_status: SINGLE
+    aged_blind_count: 1
+  output:
+    additional_standard_deduction: 1_550
+
+- name: 2017 aged and blind head of household adds 2 x $1,550
+  period: 2017
+  input:
+    filing_status: HEAD_OF_HOUSEHOLD
+    aged_blind_count: 2
+  output:
+    additional_standard_deduction: 3_100
+
+- name: 2017 joint filers with one aged spouse add $1,250
+  period: 2017
+  input:
+    filing_status: JOINT
+    aged_blind_count: 1
+  output:
+    additional_standard_deduction: 1_250
+
+- name: 2017 separate filer aged adds $1,250
+  period: 2017
+  input:
+    filing_status: SEPARATE
+    aged_blind_count: 1
+  output:
+    additional_standard_deduction: 1_250
+
+- name: 2017 aged surviving spouse adds $1,250
+  period: 2017
+  input:
+    filing_status: SURVIVING_SPOUSE
+    aged_blind_count: 1
+  output:
+    additional_standard_deduction: 1_250
+
+- name: 2015 single filer aged 65 adds $1,550
+  period: 2015
+  input:
+    people:
+      head:
+        age: 65
+    tax_units:
+      tax_unit:
+        members: [head]
+        filing_status: SINGLE
+  output:
+    additional_standard_deduction: 1_550
+
+- name: 2016 single filer aged 65 adds $1,550
+  period: 2016
+  input:
+    people:
+      head:
+        age: 65
+    tax_units:
+      tax_unit:
+        members: [head]
+        filing_status: SINGLE
+  output:
+    additional_standard_deduction: 1_550
+
+- name: 2018 aged single filer adds $1,600, unchanged
+  period: 2018
+  input:
+    filing_status: SINGLE
+    aged_blind_count: 1
+  output:
+    additional_standard_deduction: 1_600
diff --git a/...engine_us/tests/policy/baseline/gov/irs/deductions/standard/basic_standard_deduction.yaml b/...engine_us/tests/policy/baseline/gov/irs/deductions/standard/basic_standard_deduction.yaml
@@ -574,3 +574,73 @@
     irs_gross_income: 15_000
     basic_standard_deduction: 15_450
     tax_unit_is_required_to_file: false
+
+- name: 2017 single filer standard deduction is $6,350
+  period: 2017
+  input:
+    filing_status: SINGLE
+  output:
+    basic_standard_deduction: 6_350
+
+- name: 2017 separate filer standard deduction is $6,350
+  period: 2017
+  input:
+    filing_status: SEPARATE
+  output:
+    basic_standard_deduction: 6_350
+
+- name: 2017 head of household standard deduction is $9,350
+  period: 2017
+  input:
+    filing_status: HEAD_OF_HOUSEHOLD
+  output:
+    basic_standard_deduction: 9_350
+
+- name: 2017 joint filer standard deduction is $12,700
+  period: 2017
+  input:
+    filing_status: JOINT
+  output:
+    basic_standard_deduction: 12_700
+
+- name: 2017 surviving spouse standard deduction is $12,700
+  period: 2017
+  input:
+    filing_status: SURVIVING_SPOUSE
+  output:
+    basic_standard_deduction: 12_700
+
+- name: 2015 head of household standard deduction is $9,250
+  period: 2015
+  input:
+    filing_status: HEAD_OF_HOUSEHOLD
+  output:
+    basic_standard_deduction: 9_250
+
+- name: 2015 joint filers get a $12,600 standard deduction
+  period: 2015
+  input:
+    filing_status: JOINT
+  output:
+    basic_standard_deduction: 12_600
+
+- name: 2015 single filers get a $6,300 standard deduction
+  period: 2015
+  input:
+    filing_status: SINGLE
+  output:
+    basic_standard_deduction: 6_300
+
+- name: 2016 head of household standard deduction is $9,300
+  period: 2016
+  input:
+    filing_status: HEAD_OF_HOUSEHOLD
+  output:
+    basic_standard_deduction: 9_300
+
+- name: 2016 joint filer standard deduction is $12,600
+  period: 2016
+  input:
+    filing_status: JOINT
+  output:
+    basic_standard_deduction: 12_600
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Start Vermont's 2017 taxable income from federal taxable income, with the former 32 V.S.A. § 5811(21) itemized deduction addback, additions and subtractions, and add the 2017 federal standard deduction amounts.