The short answer
Yes. You can take tax-free money out of an HSA for qualified medical expenses you had after you opened the account, and the IRS doesn’t set a deadline for when you pay yourself back. You do need records to back it up.
Some people call this the “shoebox” approach: pay the bill now, save the receipt, and leave the HSA money invested.
A quick example
Say you pay a $1,200 dental bill out of pocket this year and save the receipt. The $1,200 you could have pulled from your HSA stays invested instead.
Years from now, you can reimburse yourself that $1,200, tax-free. Whatever the money earned in the meantime was never taxed along the way.
What records do you need?
The IRS says to keep records showing that:
- The withdrawal was used only to pay for or reimburse qualified medical expenses.
- The expense wasn’t already paid or reimbursed from another source.
- You didn’t also take it as an itemized deduction.
These stay with your tax records. You don’t send them in with your return.
The fine print
- The date matters. Expenses from before you opened the HSA don’t count.
- The paper trail has to last. If the reimbursement is 15 years out, so is your filing system (yikes). A folder of scanned receipts beats a literal shoebox.
- It only works if you can afford to wait. Paying out of pocket today means that cash isn’t available for something else.
Why it matters
Fidelity estimates that a 65-year-old retiring in 2026 can expect to spend an average of $185,500 on health care in retirement. A stack of saved receipts is one more way to get money out of an HSA tax-free when that time comes.
Where that leaves you
Whether to pay as you go or save receipts comes down to what you want the money to do, and what else your cash flow has to cover. That’s where we can actually help.
For the full picture on the HSA’s triple tax break, see HSAs: The Triple Tax Break Hiding in Your Health Plan.
You know where to find me.
Sources
- Tax-free distributions for qualified expenses incurred after the HSA is established, required records, records kept with tax records: IRS, Publication 969, “Health Savings Accounts and Other Tax-Favored Health Plans”
- $185,500 retiree health care estimate: Fidelity, 2026 Retiree Health Care Cost Estimate