Spouse on payroll: the subsidy pitfalls

Educational overview, not tax advice — this page exists so you ask your accountant the right questions.

Putting a spouse on the payroll of a family business is a legitimate, common arrangement with real benefits. It also creates coverage interactions that quietly cost families five figures when nobody runs the numbers together. The pitfalls, in order of expense:

Pitfall 1: An "affordable" coverage offer kills the family's subsidy

If your business offers your spouse-employee coverage that meets the IRS affordability and minimum-value tests — including via an ICHRA — then your spouse, and potentially the whole family, becomes ineligible for premium tax credits, even if nobody accepts the offer. Since the family-glitch fix, family eligibility runs on the cost of family coverage, but the analysis still has to be done — an offer you created for tax reasons can foreclose a subsidy worth more than the tax benefit. Design the payroll decision and the coverage decision as one decision.

Pitfall 2: Payroll raises MAGI — mind the cliff

Wages to your spouse are household income. In a normal year, shifting income inside the household is roughly neutral — but if the wage (plus everything else) pushes household MAGI over 400% FPL, the family's entire premium tax credit disappears at the cliff. A $4,000-of-wages difference can cost $10,000+ of subsidy. The cliff math applies with full force here.

Pitfall 3: Paper employment

The IRS looks for real work, real hours, reasonable wages, actual payroll filings. A spouse "employed" only on paper to justify benefits invites disallowed deductions plus penalties — and any coverage strategy built on the arrangement collapses with it. If the work is real, document it like you would any employee's.

The right way to decide

Once a year, ideally in the fall before open enrollment, put four numbers side by side: the tax benefit of the payroll arrangement, its payroll costs, the family's Marketplace subsidy with and without it. Your accountant owns the first two; your county's actual plan prices are the other two, and they're a ZIP code away.