The "Single Penalty": The Hidden Tax Cost of Keeping the House After Divorce
There's a tax consequence of divorce that almost nobody talks about — and it catches a surprising number of women off guard years after their settlement is finalized.
It's sometimes called the "single penalty." And if the family home is part of your divorce settlement, it's worth understanding before you sign anything.
What the single penalty is
When a married couple sells their primary residence, they're entitled to exclude up to $500,000 of capital gains from federal income tax. This exclusion applies as long as they've owned and lived in the home for at least two of the last five years.
When a single person sells their primary residence, that exclusion drops to $250,000.
That's the single penalty. A $250,000 reduction in the amount of profit you can shelter from capital gains tax — simply because you're no longer married when you sell.
For a woman who keeps the family home as part of her divorce settlement and then sells it several years later, this difference can mean a tax bill of tens of thousands of dollars — sometimes significantly more — that she wouldn't have faced had the home been sold while the divorce was still being finalized.
A real example of what this looks like
A Wall Street Journal profile published recently illustrated this perfectly. A woman who divorced at 64 after 38 years of marriage kept the family home as part of her settlement. When she sold it about four years later, she was hit with a nearly $200,000 tax bill — a direct result of the single penalty. Had the home been sold during the divorce process while she was still legally married, much of that tax liability could have been avoided.
The story doesn't end there. Because the home sale drove up her reported income for that year, she was also hit with IRMAA surcharges — a Medicare premium penalty we'll cover in more detail below. Her Medicare Part B and D premiums more than doubled for the year.
Two significant financial hits. Both directly connected to the timing of the house sale. Both potentially avoidable with the right guidance before the settlement was signed.
Why this happens so often
The family home is one of the most emotionally charged assets in any divorce. For many women it represents stability, continuity, and one thing that doesn't have to change in the middle of everything changing. The instinct to keep it is completely understandable.
But divorce attorneys — as skilled as they are at the legal aspects of dissolution — are generally not tax planners. They negotiate the settlement. They don't always model out the after-tax consequences of each asset years down the road.
This is one of the core reasons the Certified Divorce Financial Analyst® designation exists. A CDFA® is specifically trained to analyze the long-term financial and tax implications of proposed settlements — not just the face value of each asset today, but what those assets will actually be worth after taxes, after costs, and after time.
The single penalty is exactly the kind of analysis that happens in a CDFA®'s work — and exactly the kind of thing that gets missed when financial analysis isn't part of the divorce process.
The IRMAA problem — a second hidden cost
If you're approaching Medicare age or already enrolled, there's a second tax-related consequence worth knowing about: IRMAA.
IRMAA stands for Income-Related Monthly Adjustment Amount. It's a Medicare surcharge applied to Part B and Part D premiums when your reported income exceeds certain thresholds. In 2026, those thresholds start at $109,000 for a single filer.
Here's the problem: a large one-time event — like the sale of a home — can spike your reported income for that year significantly above the IRMAA threshold, even if your normal annual income is well below it. The result is dramatically higher Medicare premiums — sometimes double or more what you'd normally pay.
This isn't a permanent increase — IRMAA is recalculated annually based on your income from two years prior. But for a woman on a fixed retirement income, an unexpected Medicare premium spike in any given year is a real financial disruption.
Timing the home sale thoughtfully — and understanding how it affects your reportable income in the year of sale — is part of a comprehensive divorce financial analysis.
What you can do about it
The most important thing to know is this: the time to think about the single penalty is before your divorce settlement is finalized — not after.
Once the settlement is signed and the house is in your name alone, your options are largely fixed. You can sell immediately while the tax implications are potentially more manageable, or you can wait and accept the single penalty when you eventually do sell. Neither option is ideal if you didn't factor this into the original negotiation.
If the settlement is still being worked out, there are several strategies worth exploring with a financial advisor:
Selling the home as part of the divorce settlement while you're still legally married — preserving the $500,000 exclusion and splitting the proceeds — may be more financially advantageous than one spouse keeping the home.
If keeping the home is the right decision for non-financial reasons, understanding the tax implications upfront allows you to plan for them — setting aside funds for the eventual tax liability rather than being blindsided by it.
In some cases, negotiating for other assets in lieu of the home — retirement accounts, investment accounts, or cash — may produce a better long-term financial outcome once the after-tax values are properly compared.
None of these conversations are simple. But they're significantly easier to have before a settlement is signed than after.
The bottom line
The single penalty is one of the most concrete examples of why financial analysis belongs in the divorce process — not as an afterthought, but as an integral part of how the settlement gets structured.
A $250,000 difference in capital gains exclusion. A potential six-figure tax bill. Medicare premium surcharges on top of that. These are real numbers with real consequences for real women — and they're entirely avoidable with the right guidance at the right time.
If you're going through a divorce and the family home is part of the conversation, I'd strongly encourage you to understand the tax implications before you agree to anything. I'm happy to be a resource for that conversation.
My To New Beginnings guide covers the financial decisions that matter most during divorce later in life — including asset division, housing decisions, and planning for your financial future. Written in plain English, it's a resource you can return to throughout the process.
Download To New Beginnings — The Financial Guide for Women 55+ Navigating Divorce
Or if you'd like to talk through your specific situation — including the tax implications of your proposed settlement — you're welcome to schedule a 15-minute intro call.