Sarah is 66, single, and living on Social Security and a small pension that puts her reported income at about $95,000 a year. She pulls $60,000 out of her traditional IRA to replace a roof and help her son with a down payment, then doesn’t think about it again.
Two years later, a letter from Social Security tells her that her Medicare Part B premium is jumping from the standard $202.90 a month to $405.80. That’s an extra $2,434.80 a year, and it has nothing to do with anything she did this year. Medicare looked at her tax return from two years back, saw $155,000 in reported income, and moved her into a higher bracket.
If Sarah had pulled that same $60,000 from a Roth IRA instead of a traditional one, her reported income wouldn’t have moved at all. Same roof, same gift to her son, same $60,000, and a completely different outcome on her Medicare bill.
That’s the part almost nobody explains clearly. Medicare doesn’t care how much money touches your bank account in a given year. It only cares about a specific number called your modified adjusted gross income, and some of the biggest checks you’ll ever write yourself never show up in that number at all.
Money that comes out of a Roth IRA or Roth 401(k)
Once you’ve paid tax on money going into a Roth account, and the account has been open long enough to qualify, withdrawals come out completely free of federal income tax. That’s true of Roth IRAs, which never require withdrawals during your lifetime, and it’s true of Roth 401(k)s once you meet the age and holding period rules. Because that money never touches your adjusted gross income, qualified Roth withdrawals are excluded from both AGI and the income figure Medicare uses to set your premium.
This is why financial planners so often push clients to convert part of a traditional IRA to a Roth in the years before Medicare eligibility. The conversion itself is taxable in the year you do it, so it can raise your premium two years later, but every dollar you convert becomes a dollar you can pull out tax-free and surcharge-free for the rest of your life. If you’re already on Medicare and drawing down retirement accounts, the order matters. Pulling from a Roth bucket instead of a traditional one, in a year when you’re close to a bracket line, can be the difference between paying the standard premium and paying hundreds more a month.
None of this changes what counted as taxable when you originally funded the Roth. You already paid that tax once. This is simply the payoff for having paid it early.
Money you pull from a health savings account for medical bills
A health savings account is one of the few places in the tax code where money goes in before tax, grows without being taxed, and comes back out without being taxed either, as long as you spend it on a qualifying expense. Withdrawals used for qualified medical expenses, from doctor visits to prescriptions to dental work, are tax-free and never enter your adjusted gross income, which means they can’t push you into a higher Medicare bracket either.
Here’s the detail most people miss. Once you’re on Medicare, you can’t put new money into an HSA, but you can keep spending down whatever is already sitting in the account. HSA money can also be used tax-free to pay Medicare Part B, Part C, and Part D premiums themselves, along with qualified long-term care insurance premiums. That means an HSA can quietly cover the very premiums IRMAA threatens to raise, without adding a cent to the number that sets those premiums in the first place.
If you built up an HSA balance while you were working, treat it as a separate bucket in retirement. Spending it down on medical costs, Medicare premiums included, is one of the cleanest ways to cover healthcare bills without nudging your income anywhere near a bracket line.
Money you send straight from your IRA to a charity
If you’re 70½ or older, you can send money directly from your IRA to a qualified charity through a qualified charitable distribution, and that money is excluded from your income entirely. The limit for 2026 is $111,000 per person, adjusted for inflation each year, and it counts toward your required minimum distribution once you’re at an age where RMDs apply.
The distinction matters because of how an ordinary charitable gift works. Take $20,000 out of a traditional IRA and write a check to your church or a local food bank, and the $20,000 shows up in your income first, with a deduction only available later if you itemize. Most retirees take the standard deduction now, so that donation often provides no tax benefit at all, and it still raises your income for Medicare purposes. Route the same $20,000 straight from the IRA custodian to the charity instead, and it never touches your income to begin with.
This is one of the few strategies where doing something generous and doing something smart for your Medicare premium are the same action. The money has to move directly from the IRA to the charity, never through your own hands first, or it doesn’t qualify.
Money you borrow against your house or your life insurance
A loan is not income, no matter how large it is or what you spend it on. A home equity line of credit, a reverse mortgage, or a loan against the cash value of a permanent life insurance policy all put cash in your pocket without appearing on a tax return, because loan proceeds are money you’ll eventually repay, not income, and they don’t affect your Medicare income calculation.
This is why some retirees who are house-rich and cash-poor use a reverse mortgage to cover living expenses instead of pulling larger amounts from a traditional IRA. The reverse mortgage proceeds don’t count as income at all, while an equivalent IRA withdrawal would be fully taxable and would count toward Medicare’s income test. The tradeoff is real. A reverse mortgage carries fees and reduces the equity left in the house, and a policy loan reduces the death benefit your beneficiaries eventually receive if it isn’t repaid. Borrowing isn’t free money.
Still, if the choice is between an IRA withdrawal that could tip you into a higher bracket and a loan that costs interest but doesn’t touch your income, it’s worth running both numbers before you decide. A lot of retirees don’t realize borrowing is even on the table as an alternative to a taxable withdrawal.
A life insurance payout
When someone names you as a beneficiary on a life insurance policy, the death benefit you receive isn’t taxable income under federal law. Life insurance proceeds paid because of the insured person’s death generally aren’t taxable, with limited exceptions for policies that were sold or transferred to you for a price. That means a $250,000 payout, or a $2 million one, adds nothing at all to your adjusted gross income the year you receive it.
The one wrinkle is interest. If the insurance company holds the payout and pays it out over time instead of in a lump sum, the interest portion of those payments is taxable, even though the underlying death benefit isn’t. Most beneficiaries take the money as a lump sum specifically to sidestep this.
This matters for Medicare because a life insurance payout is often the single largest check a retiree ever receives, and it’s natural to assume something that large must carry tax consequences. It doesn’t, at least not on the federal income side, and it won’t move your Medicare bracket the following year no matter how much money is involved. If you’re settling an estate and distributing policy proceeds to beneficiaries, it’s worth telling them plainly that the money is theirs free and clear, because grieving family members rarely think to ask.
A gift or an inheritance
Receiving a gift, whether it’s $500 from a parent or a six-figure inheritance after someone dies, is not income to you under federal tax law. Cash or property received as a gift or an inheritance isn’t taxable income to the person receiving it, and it doesn’t appear anywhere on your tax return as income, which means it can’t touch your Medicare premium.
What does count is what you do with the money afterward. Inherit a traditional IRA and have to take distributions from it, and those distributions are taxable income, the same as if you’d built up the account yourself. Inherit a rental property and it generates rent, and that rent is taxable. Inherit stock and later sell it for a gain above its stepped-up basis, and that gain is taxable. The inheritance itself isn’t the taxable event. What the inherited asset produces afterward can be.
This trips people up because a large inheritance often arrives alongside a stack of assets that will generate taxable income going forward. It helps to separate the two in your head. The inheritance is free money, but managing what it turns into is where the Medicare exposure actually starts.
Getting your own money back
A lot of income that looks large is really just your own money coming back to you, and none of that counts toward Medicare’s income test. Sell an investment and only the gain is taxable. The portion that represents what you originally paid, your cost basis, comes back with no tax owed. Cash out a non-qualified annuity and the same principle applies. The amount you contributed comes back tax-free, and only the growth on top of it is taxed.
The clearest example most people will actually use is selling a house. Single filers can exclude up to $250,000 of profit from selling their primary home, and married couples filing jointly can exclude up to $500,000, as long as they’ve owned and lived in the home for at least two of the last five years. For most people selling a longtime home, the entire profit falls under that exclusion and never touches their tax return at all, let alone their Medicare premium.
None of this requires special paperwork or an election. It’s simply how cost basis and gain work. The mistake to avoid is assuming every dollar that comes out of an account or off a sale counts as income. Often, a chunk of it is just your own money, returned to you.
None of this means you should reorganize your retirement around dodging a Medicare surcharge. It just means that before you assume a big withdrawal or a big sale is going to cost you at the doctor’s office, it’s worth checking which bucket the money actually came from.
