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Curious if a Roth conversion might boost your Social Security benefits? Here’s the reality: while converting to a Roth IRA ramps up your taxable income for that year, it doesn’t affect the way Social Security calculates your benefits. Social Security relies on your covered earnings, such as wages and net self-employment income, not the extra taxable income generated by a Roth conversion. So even though you’ll pay taxes on the conversion, it won’t add any extra credits to your Social Security record. In fact, Roth conversions can add costs in other retirement areas, as well, despite their advantages. Here are some more things to consider for your retirement planning.
You can also use this free tool to match with a financial advisor if you’re interested in professional guidance for retirement planning and more.
Roth Conversions and Taxable Income
A Roth conversion moves eligible funds from a traditional IRA or other eligible retirement account to a Roth account. Previously untaxed amounts are generally included in income when converted. Although the term “Roth conversion” is typically used to refer to the movement of pre-tax funds, you can can also convert eligible after-tax funds, which won’t be included in taxable income.
The advantage to a Roth conversion is that you will receive the full benefits of a Roth IRA. This means your money will grow tax-free and, when you withdraw it, you won’t pay any taxes on qualified withdrawals. A Roth account is also exempt from required minimum distributions (RMDs) and qualified withdrawals do not count toward your taxable income in a given year.
The disadvantage to a Roth conversion is that the taxable amount converted counts toward your taxable income for the year. For example, say you have $75,000 in taxable income before a conversion and convert $100,000 of fully pre-tax retirement funds to your Roth IRA in the same calendar year. Before accounting for any other adjustments, your income would increase by $100,000 as a result of the conversion.
For any Roth conversion, you need to make sure you have the cash on hand to pay the additional income taxes that this conversion will trigger. If you’re over 59 ½ years old, you can take the money from your retirement fund. Otherwise, you need the cash on hand from other sources.
This will also affect any other programs that measure your taxable income. For example, it can cause more of your Social Security benefits to become taxable under the combined-income formula. Medicare Part B and D premiums may also increase if MAGI rises. Student aid programs can also be affected, if you have a child in school or are in school yourself, or it might change your eligibility for Medicaid.
In this case, if you convert $50,000 per year you should plan for these fluctuations. A $50,000 conversion can significantly increase your income taxes for the year and may affect income-assessed programs, depending on your other income and circumstances. For example, if you are receiving Social Security, a conversion could cause more of your benefits to become taxable. Medicare premiums can also increase if the conversion pushes your income above an applicable income-related monthly adjustment amount (IRMAA) threshold.
Some effects of a conversion can extend beyond the tax year in which it occurs. For example, Medicare generally uses tax return information from two years earlier to determine whether IRMAA applies, so a 2026 conversion could affect Medicare premiums in 2028.
A financial advisor can help you navigate taxes and execute an appropriate strategy.
Social Security Credits
Social Security benefits are based on a credit system. During your working life, you earn Social Security credits based on covered earnings, such as wages and net earnings from self-employment. The SSA tracks these earnings each year.
You can earn up to four Social Security credits per year. In 2026, you earn one credit for each $1,890 in covered earnings, so $7,560 in covered earnings earns the maximum four credits for the year. Credits generally determine whether you qualify for Social Security benefits, while the amount of your retirement benefit is calculated separately using your earnings record.
Separately, the SSA also caps how much of your earnings are subject to Social Security tax and counted toward your benefit calculation each year. In 2026, this taxable maximum is $184,500. This cap has nothing to do with how many credits you earn in a year. It only affects how much of a high earner’s income factors into their eventual benefit amount.
For retirement benefits, the SSA generally calculates your average indexed monthly earnings using up to 35 years of your highest indexed earnings and then applies a formula to determine your primary insurance amount. A Roth conversion does not add covered earnings to this calculation.
Earned Income vs. Taxable Income
As noted above, there is a critical difference between the income associated with Roth conversions and Social Security credits.
Roth conversions increase your taxable income for a given year. The taxable portion of a Roth conversion is generally included in your gross income for federal income tax purposes. The amount ultimately subject to federal income tax depends on deductions and other provisions that apply to your return.
Estimate how a Roth conversion could affect your current tax bill by using our income tax calculator.
Earned income, on the other hand, is money that you receive for work. There are a few statutory examples of earned income as well, such as strike benefits or disability pay. In general, this means money received as payment for a job, earnings from self-employment and profits from running a business. Most significantly, it does not include money you receive from investments or other portfolios.
Not all taxable income is earned income. This is where the distinction comes in here. A Roth conversion uses money taken from a pre-tax retirement portfolio. Although it applies to your taxable income for the year, it is not considered earned income. As a result, a Roth conversion will not affect your potential Social Security benefits, no matter how much money you move.
Consider speaking with a financial advisor about your financial goals.
How a $50,000 Roth Conversion Can Affect Your 2026 Tax Bracket
Although a $50,000 Roth conversion will not increase your Social Security retirement benefit, the conversion can move some of your income into a higher federal tax bracket. The impact depends on your filing status, deductions, other income and whether all of the converted funds are taxable.
For example, suppose a married couple filing jointly has $70,000 of taxable income in 2026 before making a fully taxable $50,000 Roth conversion. Their taxable income would rise to $120,000. In 2026, the 12% federal income tax bracket for joint filers ends at $100,800, so part of the conversion would fall into the 22% bracket. This does not mean all $120,000 is taxed at 22%. Federal income tax brackets are marginal, so only the portion within each bracket is taxed at that bracket’s rate.
This is one reason the size and timing of conversions can matter even though conversions do not affect the Social Security benefit formula. A financial advisor or tax professional can help calculate how different conversion amounts could affect your marginal tax rate, taxation of Social Security benefits and Medicare premiums.
Bottom Line
Roth conversions cannot increase your Social Security benefits. A Roth conversion increases your taxable income, while Social Security retirement benefits are calculated from your covered earnings record. While Roth conversions can increase the taxes you pay on benefits if you make a conversion in retirement, they cannot increase your benefits themselves.
Retirement Planning Tips
- Just because a Roth conversion can’t increase your Social Security benefits, that doesn’t mean it can’t be done. In fact, here are four tips on how you can plan to boost your benefits in retirement.
- Finding a financial advisor doesn’t have to be hard. SmartAsset’s free tool matches you with vetted financial advisors who serve your area, and you can have a free introductory call with your advisor matches to decide which one you feel is right for you. If you’re ready to find an advisor who can help you achieve your financial goals, get started now.
- Keep an emergency fund on hand in case you run into unexpected expenses. An emergency fund should kept in an account that isn’t at risk of significant fluctuation like the stock market. The tradeoff is that the value of liquid cash can be eroded by inflation. But a high-interest account allows you to earn compound interest. Compare savings accounts from these banks.
- Are you a financial advisor looking to grow your business? SmartAsset AMP helps advisors connect with leads and offers marketing automation solutions so you can spend more time making conversions. Learn more about SmartAsset AMP.
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