Why payment source matters (HSA card vs. out-of-pocket)

When you log an expense, you're asked to set a payment source. This sounds like a small detail, but it determines whether you can reimburse yourself for that expense — and how it shows up on Form 8889.

The options

• Out-of-pocket (after-tax) — You paid with your personal money (debit, credit card, cash). You can reimburse yourself for this from your HSA later, tax-free.
• HSA card — You paid with your HSA debit card directly. The money already came out of your HSA. You can't reimburse yourself again — that would be double-dipping.
• FSA card — You paid with a healthcare FSA. Already used pre-tax money; can't reimburse from your HSA.
• Reimbursed from HSA — You already reimbursed yourself for this one in the past.
• Unknown — You're not sure. Useful as a placeholder, but you'll need to set this before tax export.

Why it matters at tax time

Form 8889 cares about distinguishing:

• HSA distributions (line 14a) — money that came out of your HSA, whether by HSA card or by reimbursement
• Qualified medical expenses (line 15) — what those distributions were for

If you mark an expense as paid with the HSA card, it counts as a distribution that's already happened. If you mark it out-of-pocket, it's a candidate for future reimbursement. Mixing these up can produce a Form 8889 that's wrong in either direction.

"Unknown" is fine until tax export

When you log an expense in a hurry, "Unknown" is a fine placeholder. You'll be reminded to fix it before generating Form 8889 — there's a filter on the Expenses page called Needs payment source that shows every expense missing this field.

Smart Reimbursement and payment source

Smart Reimbursement only includes expenses marked Out-of-pocket. Expenses paid with the HSA card or already reimbursed are filtered out automatically — you can't accidentally double-claim.

Editing later

You can change the payment source on any expense at any time, on the expense detail page. If you realize you tagged something wrong, just open it and fix it.

Updated on: 05/06/2026