Self-employed health insurance deduction and the PTC

Do not deduct the subsidized portion

Only premiums economically borne by the taxpayer can support the self-employed health insurance deduction, subject to its other limits. APTC and net PTC reduce the relevant premium amount.

Use the IRS calculation method

Publication 974 provides an iterative calculation and an alternative method for the interaction. Tax software should implement a permitted method, but the filer should review business eligibility, policy months, and resulting Form 8962.

Decision example and mistake

A sole proprietor deducts the full Marketplace premium shown in column A while also claiming the full PTC. That double counts the subsidized portion. The opposite mistake is skipping the deduction because the interaction appears circular.

Solve the circular calculation deliberately

The self-employed health insurance deduction reduces AGI, while the PTC reduces the premium amount available for that deduction. Use the iterative or alternative method in IRS guidance rather than subtracting both independently. Preserve the worksheet because software output alone may not show how the circular relationship was resolved.

Recompute the interaction after any Schedule C adjustment, because changing net profit can alter both the deduction limit and household income.

Filing and enrollment checks

• Confirm the insurance is established under the business rules.
• Limit the deduction to eligible net earned income.
• Reconcile the final deduction and PTC so the same premium is not used twice.

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Authorities used for this guide

• IRS: Publication 974 - Premium Tax Credit
  Detailed PTC special situations, allocations, employer arrangements, and self-employed deductions
• IRS: 2025 Instructions for Form 8962
  2025 excess advance credit repayment caps only
• U.S. House Office of the Law Revision Counsel: 26 U.S.C. section 36B - Premium tax credit
  Statutory PTC eligibility, household income, coverage months, and credit calculation