Mega Backdoor HSA
Contributing additional after-tax funds to an HSA beyond the normal limits, then converting to tax-free status through medical expense reimbursement.
What is Mega Backdoor HSA?
The term "mega backdoor HSA" is sometimes used to describe advanced strategies for maximizing HSA value, though unlike the mega backdoor Roth, there's no formal mechanism to contribute beyond the annual limit.
What people often mean by this term is the combination of: maximizing HSA contributions each year, investing the balance for long-term growth, paying medical expenses out-of-pocket and accumulating receipts, and eventually reimbursing yourself for years of expenses when needed.
This approach effectively converts regular savings (used to pay medical bills) into eventual tax-free income (the HSA reimbursement). It's not technically contributing over the limit, but the effect is similar to having more tax-advantaged space.
Frequently Asked Questions
Can I contribute more than the HSA limit?
No. Unlike 401(k)s, there's no after-tax contribution mechanism for HSAs. You're limited to the annual contribution maximum.
So what's the mega backdoor strategy really?
Maximizing contributions, investing for growth, and building up reimbursable receipts over time - essentially making your regular savings eventually convertible to tax-free.
Related Terms
Shoebox Strategy
Paying medical expenses out-of-pocket now and saving receipts to reimburse yourself tax-free from your HSA later.
HSA as Retirement Account
Using your HSA as a long-term investment vehicle for retirement, similar to a 401(k) or IRA.
Contribution Limit
The maximum amount you can contribute to an HSA in a calendar year, set annually by the IRS.
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Track your HSA expenses
Now that you understand the terms, put your knowledge to work. Track expenses and reimburse yourself tax-free.
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