SSI couple computation halves a student spouse's earned income exclusion (20 CFR 416.1112(c)(3)) #10456

What

For an eligible couple, ssi_countable_income builds each spouse's figure from the couple's combined earned income (ssi_marital_earned_income) less that spouse's own student earned income exclusion (ssi_blind_or_disabled_working_student_exclusion). It then applies the $20, $65 and one-half exclusions and halves the result. The student spouse's half reflects the exclusion, but the other spouse's half does not. The couple's countable income therefore reflects only half of the exclusion, and the non-student spouse's SSI is too low.

Rule

• 416.1802(b)(1): with an eligible spouse, "we will count your combined income and calculated the benefit amount for you as a couple". 416.412 reduces the couple rate "by the amount of the couple's income which is not excluded pursuant to subpart K".
• 416.1112(a) and (c)(3): the exclusions apply "in the order listed in paragraph (c)". The student exclusion, "(3) If you are under age 22 and a student who is regularly attending school", comes before the unused $20 in (c)(4), the $65 in (c)(5) and the one-half in (c)(7).
• POMS SI 00820.510 B.5: apply the exclusion "only to a students own earned income". E.2: "If one or both members of an eligible couple are working students, compute the correct payment, taking into account the SEIE", and "The SEIE applies only once to the combined earnings of the couple, even if both members of the couple are students and are working". Its example: "DI earns $900 and DS earns $600. Their combined income is $1,500. $1,500 - $1,410 (monthly SEIE) = $90."

For a couple with no unearned income, countable income is therefore (both spouses' wages − the student's exclusion − $20 − $65) / 2, computed once for the couple.

One POMS line reads narrower. SI 00820.510 A's background says the exclusion "will apply to the joint earned income of eligible couples when both members are under age 22 and are working students". 416.1112(c)(3) ("If you are under age 22"), B.5 and E.2 apply it whenever one member is a working student, and the regulation governs.

Worked households (2026)

The monthly exclusion is $2,410 and the yearly limit $9,730 (parameters on main). The couple rate is $1,491, or $745.50 each. Amounts are monthly.

1. Aged spouse (70) with wages of $3,277; disabled full-time student spouse (20) with wages of $1,200. The model spreads the yearly limit evenly: $14,400 a year of wages is capped at $9,730, or $810.83 a month.

• main: the couple's combined wages are $4,477. The aged spouse's half is ($4,477 − $85) / 2 / 2 = $1,098; the student's is ($4,477 − $810.83 − $85) / 2 / 2 = $895.29. The couple's total is $1,993.29.
• Rule, with the same $810.83: ($4,477 − $810.83 − $85) / 2 = $1,790.58.
• SSI is $0 either way, because both figures exceed $1,491.

2. Disabled spouse (24) with wages of $1,000; disabled full-time student spouse (20) with wages of $800. $9,600 a year is under the yearly limit, so the exclusion is the full $800 every month.

Under the rule, the couple's countable income is ($1,800 − $800 − $85) / 2 = $457.50, and SSI is $1,491 − $457.50 = $1,033.50. main pays $200 a month less: the $800 exclusion, halved by the one-half exclusion and halved again.

Where

• policyengine_us/variables/gov/ssa/ssi/eligibility/income/ssi_countable_income.py: earned_income = max_(pre_reduction_earned_income - blind_disabled_working_student_income, 0), then personal_countable / 2 under the couple computation.
• policyengine_us/variables/gov/ssa/ssi/eligibility/income/marital/ssi_marital_earned_income.py sums both spouses' earnings before any exclusion.
• PR Apply 416.1163(e)(2) to deemed SSI and identify SSI couples by marriage, not tax roles #10141 makes ssi_marital_*_income read the spouse's row, and PR Limit SSI spousal-deeming child allocations to the couple's co-resident children #10146 moves the formula to ssi_countable_income_monthly unchanged. Neither changes the results above.

Suggested fix

• Under the couple computation, subtract each spouse's exclusion from that spouse's own earnings before combining, for example in ssi_marital_earned_income. Subtract the person's own exclusion in ssi_countable_income only when the couple computation does not apply. Both halves then equal the couple's figure.
• When both spouses are working students, cap the couple's combined exclusion at one monthly and one yearly limit (SI 00820.510 E.2).
• Add the two households above as YAML cases.

Related

• The model spreads the yearly limit evenly over the year. SI 00820.510 B.5 applies the exclusion "consecutively to months in which there is earned income until the maximum yearly exclusion is exhausted". In household 1, that excludes the full $1,200 from January to August, $130 in September and nothing after, for countable income of $1,596, $2,131 and $2,196. PR Limit SSI spousal-deeming child allocations to the couple's co-resident children #10146 applies the consecutive rule to an ineligible child's allocation but not to the student's own exclusion. That is a separate gap.
• In PR 8017, Iowa's State Supplementary Assistance uses SSI's countable income for an eligible couple, so it inherits this.
• SSI: deemed benefit is capped at the individual rate instead of the no-deeming amount, and couples are identified by tax roles #10138, Derive SSI's medical treatment facility inputs from is_in_medicaid_facility #10193 and Fix SSI spousal deeming for in-kind support and for aged, blind or disabled spouses who are not eligible #10243 do not cover the student exclusion.

Sources

• 20 CFR 416.1112(a) and (c)(3)
• 20 CFR 416.1802(b)(1)
• 20 CFR 416.412
• POMS SI 00820.510 A, B.5 and E.2, Student Earned Income Exclusion

Found while reviewing PR 8017 (Iowa State Supplementary Assistance).