Losing a spouse changes nearly every part of life. Taxes are probably not the first thing anyone wants to think about during that period but with change comes opportunity and unfortunately this opportunity is about mitigation rather than savings.
One of the more surprising situations we see in retirement tax planning is a surviving spouse whose income decreases after their spouse passes away, but whose federal tax liability does not decrease nearly as much as expected. In some situations, the surviving spouse can even pay more federal income tax despite having less income. This is part of the Blue Heron Tax Map for retiree tax planning.
You may hear this described as the “widow’s penalty,” “widower’s penalty,” or “survivor’s penalty.” These are not IRS penalties, and the tax return preparation may still feel simple. The penalty being referred to is the result of the proper assessment of taxes when a household moves from married filing joint tax rules to the rules that generally apply to a single taxpayer.
It is the interaction between filing status, tax brackets, Social Security, retirement accounts, deductions, Medicare premiums, and the amount of income that disappears when one spouse dies. It is a complicated combination of factors that result in the surviving spouse often paying more than the married couple would have.
For Florida retirees, Florida does not impose an individual income tax. The planning discussion for most Florida individuals will heavily focus on the federal tax consequences which is what we will focus on in this article.
Understanding How You File as a Surviving Spouse
It is important to understand the rules around how you can file as a surviving spouse. As a married couple, you may be used to filing Married Filing Jointly.
In the year that your spouse passes away, the IRS generally allows you to file a joint federal income tax return with your deceased spouse for the year of death. Though there are some exceptions, for many, this will be the last year with the Married Filing Joint tax classification. It would also be the last year being able to take advantage of increased tax brackets associated with being married.
To reiterate, if the spouse has passed away in June of 2026, the surviving spouse will usually be allowed to file married filing jointly for the 2026 tax year.
There is a separate status called Qualifying Surviving Spouse, which can preserve the married filing jointly tax rates for up to two years after the year of death. However, this status generally requires the surviving spouse to have a qualifying dependent child and meet several additional requirements. Since most retirees don’t have dependent children, we are going to assume there are no dependents in this article. The surviving spouse will end up becoming a single taxpayer beginning with the year after the spouse's death.
How a Surviving Spouse’s Tax Brackets Change
Consider the 2026 federal income tax brackets.
| Tax Rate | Single | Married Filing Jointly |
| 10% | $0 – $12,400 | $0 – $24,800 |
| 12% | $12,401 – $50,400 | $24,801 – $100,800 |
| 22% | $50,401 – $105,700 | $100,801 – $211,400 |
| 24% | $105,701 – $201,775 | $211,401 – $403,550 |
| 32% | $201,776 – $256,225 | $403,551 – $512,450 |
| 35% | $256,226 – $640,600 | $512,451 – $768,700 |
| 37% | $640,601 and above | $768,701 and above |
Often in retirement, the surviving spouse will be privileged in retaining much of the income that they previously received as a married couple. Survivors’ benefits of pensions, social security rules, and IRAs available for distribution usually exist. In many cases we see, income heavily retained as a surviving spouse, upwards of 80% in some situations.
When we look at the 2026 tax brackets above, we can both see that the tax brackets are almost doubled for married filers versus single filers and this makes sense. You can see at higher income levels this isn’t exactly the case but for those in the 32% bracket or less, the expectation is that your tax bracket and standard deduction will be cut in half.
This creates a situation where additional income is taxed at higher rates even though less income is being taxed overall. Often we see surviving spouses pay even more tax at lower incomes than when they were married.
| Married Filing Jointly | Surviving Spouse – Single | |
| Adjusted Gross Income (AGI) | $150,000 | $120,000 |
| 2026 Standard Deduction | ($32,200) | ($16,100) |
| Taxable Income | $117,800 | $103,900 |
| Tax at 10% | $2,480 | $1,240 |
| Tax at 12% | $9,120 | $4,560 |
| Tax at 22% | $3,740 | $11,770 |
| Total Federal Income Tax | $15,340 | $17,570 |
| Marginal Tax Rate | 22% | 22% |
| Effective Tax Rate on AGI | 10.2% | 14.6% |
The above example makes it extremely clear. Even though the income significantly dropped from $150,000 to $120,000, additional income is being taxed at higher tax rates leading to a significantly higher Effective Tax Rate and a significant increase in Total Federal Income Tax.
At lower incomes, this effect can be more significant. At higher incomes in the 22% and 24% single brackets, the effect is less significant but still a factor.
How a Spouse’s Death Can Affect Medicare IRMAA.
For retirees on Medicare, the change from married to single can also affect the Income-Related Monthly Adjustment Amount, commonly called IRMAA. In the case you encounter an IRMAA bracket, the cost is usually between $1,200 to $2,000 per bracket per person. Now IRMAA is not considered a tax, but it is assessed and based on your income.
One of the tricky things about IRMAA is that it is based on your Modified Adjusted Gross Income (MAGI). MAGI, which for this purpose is your adjusted gross income plus tax-exempt interest. Your standard deduction does not reduce that amount. As a result, the income Social Security uses to set Medicare premiums can be higher than your taxable income.
You’ll see a similar theme with IRMAA as you did with the tax brackets. The income brackets are typically halved when moving from Married Filing Jointly to Single. Here are the 2026 IRMAA Brackets.
| 2026 MAGI Tier | Single | MFJ | Part B Monthly Premium | Part D Monthly IRMAA* |
| No IRMAA | ≤ $109,000 | ≤ $218,000 | $202.90 | $0 |
| Tier 1 | $109,001–$137,000 | $218,001–$274,000 | $284.10 | $14.50 |
| Tier 2 | $137,001–$171,000 | $274,001–$342,000 | $405.80 | $37.50 |
| Tier 3 | $171,001–$205,000 | $342,001–$410,000 | $527.50 | $60.40 |
| Tier 4 | $205,001–$499,999 | $410,001–$749,999 | $649.20 | $83.30 |
| Tier 5 | ≥ $500,000 | ≥ $750,000 | $689.90 | $91.00 |
The cost is much more hidden than what your income tax is though. IRMAA is assessed 2 years from the year in which the income was earned. That means the Medicare Premiums you paid in 2026 were based on your 2024 income while your 2028 premiums will be based on the income you claim in 2026.
The following table shows 2026 Medicare premiums and income thresholds. Although 2026 tax-return income will generally be used for 2028 premiums, the 2028 premium amounts and thresholds have not yet been announced.
| Married Couple | Surviving Spouse | |
| MAGI | $150,000 | $120,000 |
| Filing Status | MFJ | Single |
| First IRMAA Threshold | $218,000 | $109,000 |
| Amount Over Threshold | $0 | $11,000 |
| IRMAA Tier | None | Tier 1 |
| Part B Premium | $202.90/mo per person | $284.10/mo |
| Part D IRMAA | $0 | $14.50/mo |
Going back to our previous example with income taxes, what happens when a married couple with $150,000 of income becomes a $120,000 single individual?
Not only did we show they are expected to pay additional income taxes, we also see they are at a higher risk to pay IRMAA each year.
The death of a spouse is one of the life-changing events recognized by Social Security for purposes of requesting a new IRMAA determination. If the death causes household income to fall, the surviving spouse may be able to use Form SSA-44 to request that Social Security evaluate more recent income rather than relying on an older, higher-income tax return.
That does not eliminate every surviving-spouse IRMAA issue, but it can be extremely important when an IRMAA notice is based on income that no longer represents the survivor's financial situation.
The Enhanced Senior Deduction for a Surviving Spouse
For tax years 2025 through 2028, taxpayers age 65 or older may qualify for the temporary Enhanced Deduction for Seniors.
The maximum deduction is $6,000 per eligible person. A married couple filing jointly where both spouses qualify can potentially receive a $12,000 deduction. A single eligible taxpayer has a maximum deduction of $6,000.
The income phaseout also begins at different levels: $150,000 of modified adjusted gross income for joint filers compared with $75,000 for other eligible taxpayers. That means the transition from married filing jointly to single can affect not only the tax brackets and standard deduction, but potentially this additional retirement-age deduction as well.
| Married Filing Jointly | Surviving Spouse – Single | |
| MAGI | $150,000 | $120,000 |
| Eligible seniors | 2 | 1 |
| Maximum enhanced senior deduction | $12,000 | $6,000 |
| Phaseout begins | $150,000 | $75,000 |
| MAGI above phaseout threshold | $0 | $45,000 |
| Phaseout calculation | $0 | $45,000 × 6% = $2,700 |
| Enhanced senior deduction allowed | $12,000 | $3,300 |
| Loss of deduction | — | $8,700 |
There are many deductions and credit phaseouts that exist, this is just the most common one we see for retirees. In an attempt to not overcomplicate the article and identify every possible situation, we will move on. Just keep in mind that there is much more that can be talked about when it comes to being a surviving spouse for tax purposes.
Roth Conversion Planning While Married
When performing tax planning for retirees, the Survivor’s Penalty needs to be taken into consideration. It is not the most important consideration in my opinion and it cannot be confidently calculated, but it is often part of the reason why accelerated taxation during married years can make sense.
While both spouses are still alive, the married filing jointly brackets create tax capacity that may not exist later. Accelerating taxation takes advantage of that tax capacity. The most common answer for how to accelerate taxation is making Roth conversions.
The question should be:
Would recognizing IRA income while we have married filing jointly tax brackets create a better lifetime tax result than leaving that income to be recognized by one surviving spouse later?
Sometimes the answer will be yes.
Sometimes it will be no.
Surviving-Spouse Planning Should Ideally Happen Before It Is Needed
This is an uncomfortable topic. Nobody wants retirement tax planning to become a conversation about which spouse will pass away first. Commonly the husband will respond, “It better be me, I couldn’t tell you where anything is” when the topic comes up.
The purpose isn’t to agree who wants to die first. The purpose is to recognize that a retirement plan designed for two taxpayers may eventually have to support one taxpayer. That changes the math. Tax planning for retirees already has too many variables as it is. Having a better understanding of what is likely to happen allows tax planning to become more beneficial.
When we model retirement income, we therefore want to understand what the surviving spouse's tax return might eventually look like.
- How much Social Security remains?
- What pension income continues?
- How large might the traditional IRA be?
- What could the RMD look like?
- What happens to taxable investment income?
- Where might the survivor fall within the single tax brackets?
- Could IRMAA become more expensive?
The Goal Is Not to Predict the Future
When tax planning for retirees, none of us knows which spouse will live longer, how long retirement will last, what markets will do, or what future tax laws will look like.
A tax plan should not pretend that a tax expert can accurately predict the future.
The goal of tax planning is simply to recognize that risks exist and seek to mitigate those risks for the taxpayer. The result of the risks is likely extra tax, but the reasons why extra tax may exist become severely complex when modeled.
A married couple may have a comfortable tax position today while a future surviving spouse could eventually face higher effective tax rates, lower deductions, lower Social Security taxation thresholds, lower Medicare IRMAA thresholds, and substantial taxable retirement accounts.
Understanding that possibility gives the couple another piece of information to consider when making decisions today.
For Florida retirees, that might mean evaluating Roth conversions, IRA withdrawals, charitable strategies, investment income, Social Security, RMDs, and Medicare costs through the lens of the entire retirement. The focus should not be just next year's tax return.
At Blue Heron CPAs, this is why we approach retirement tax planning as a multi-year process. Things also change every year and having someone reevaluate on a yearly basis to update what you need to meet your goal is important. The goal is not simply to minimize this year's tax liability. The goal as a retiree turns into paying the least amount of lifetime tax which is a constant moving target.
Frequently Asked Questions About the Widow’s Penalty
Usually not. If you do not remarry that year, most will file a joint federal return with your deceased spouse for the year of death. There are some exceptions which apply. In following years, many retirees file as single, although some people with a qualifying dependent child may qualify for a different filing status.
Yes. A surviving spouse may keep much of the household’s income while moving to single tax brackets and a smaller standard deduction. The result depends on which Social Security benefits, pension payments, retirement distributions, and other income continue.
No. The phrase describes a possible tax outcome, not an IRS penalty. Some survivors pay less tax because their income falls enough to offset the change in filing status. The useful question is how your income and deductions would change.
Yes. Social Security recognizes a spouse’s death as a life-changing event. If it reduces your income, you can ask Social Security to review your IRMAA using more recent income information, including through Form SSA-44.
Disclaimer
This article is for educational purposes only and should not be treated as personalized tax, investment, legal, or financial advice. The article is written from the perspective of a Florida individual and other states may have different laws. This article has not been updated since the date of writing. Links are provided to easily confirm where the information came from. Use it to help you ask better questions about your situation. For advice tailored to you, consult a qualified tax professional.
Author
Nathan Gauger is the Managing Partner of Blue Heron CPAs and focuses on retirement tax planning—helping retirees make confident decisions around Roth conversions, RMDs, Social Security timing, and Medicare-related costs like IRMAA. His goal is simple: make sure your tax plan supports the life you want in retirement, not just the return you file this year.
Ready to talk? If you’d like help reviewing your tax situation or building a retirement-focused plan, the simplest next step is to Schedule a Discovery Call.