[Edit: Corrected to reflect that the deposit occurred in 2025.]
It appears that this deposit happened in 2025. There is no deduction for an excess contribution. You will need to enter it into 2025 TurboTax as an ordinary personal $185 contribution.
The deadline to request a return before the due date of your tax return of an excess contribution made for 2024 is October 15, 2026 if by April 15, 2026 you either filed your 2025 tax return or you requested a filing extension and when TurboTax indicates that the $185 entered as a personal contribution is an excess contribution you'll indicate that that you will have it returned. If you do not timely file your tax return or request a filing extension, the deadline will be April 15, 2026.
With an uncorrected excess contribution reported on your 2025 tax return, when you transfer your 2025 tax file into 2026 TurboTax to begin your 2026 tax return, TurboTax will transfer in the $185 excess and allow your husband to treat it as part of his 2026 HSA contribution (assuming that applying the $185 would not result in an excess contribution for 2026). Doing so will result in the $185 being deductible on your 2026 tax return and will eliminate the 6% penalty that would otherwise apply for 2026.
