Good morning! Nobody starts a business thinking about how it’ll get divided in a divorce, for the same reason nobody buys a house thinking about the home inspection that’ll find the cracked foundation.

But if you’re a business owner going through a divorce, your business isn’t just an asset. It’s a valuation fight, a retirement account with special rules, and a tax return with landmines you didn’t know existed. This week, we walk through what actually happens to a business (and its owner’s tax bill) when a marriage ends.

This week’s lineup:

💔 Divorce and your business: the tax implications nobody plans for — If you built the business with your spouse, divorce doesn’t just split ownership. It ends your election, changes your tax return, and rewrites how the IRS sees your business.
📊 How business valuation works in a divorce (and why it matters for taxes) — Two appraisers, one business, $400,000 apart. Here’s why the gap changes your tax bill.
🔐 Your retirement account has opinions about your divorce — Not all retirement accounts split the same way. Using the wrong process for yours can turn a tax-free split into a taxable one.
📥 The Business Owner Divorce Tax Consideration Checklist — Every tax question your attorney won’t think to ask and your accountant needs answered.

The Basics

💔 Divorce and your business: the tax implications nobody plans for

Young upset couple quarrel at home indoors

Photo by Vitaly Gariev on Unsplash

The Quick & Bristly: If you and your spouse both own the business, divorce hits the tax side harder than a simple ownership transfer. A Qualified Joint Venture election dies with the joint return, and the business defaults to partnership taxation whether anyone planned for it or not. Buying out your co-owner is generally tax-free under IRC Section 1041 if it’s spouse-to-spouse, but not if the business does the buying instead. And if you keep co-owning it, congratulations: you’re now business partners with your ex, which is a sentence nobody enjoys typing.

After 20 years of loading the dishwasher “wrong,” you’ve finally decided to call it quits. The house is handled. The dog goes with whoever has the bigger yard. The grandkids get Thanksgiving with one of you and Christmas with the other, on a rotation more complicated than anything in the tax code. What nobody warns you about: you didn’t just build a life together. If you co-own the business, you built a P&L together too, and that doesn’t split as cleanly as the china.

The QJV election ends when the marriage does

Jointly run an unincorporated business with your spouse? You may have elected Qualified Joint Venture status under IRC Section 761(f) — two Schedule Cs instead of a partnership return. Popular, simple, and entirely dependent on one thing: filing jointly. The moment that stops, so does the election. Nobody has to revoke it; it just quietly expires, like the gym membership neither of you is using anymore. The business defaults to partnership taxation — Form 1065, possibly a new EIN, K-1s for both of you.

Buying out your co-owner (who used to be your spouse)

Spouse buys spouse: Generally tax-free under Section 1041 — no gain, no step-up in basis, no matter how much cash changes hands.
The business buys out a spouse: A different transaction. Section 1041 doesn’t automatically apply, and depending on structure, the departing spouse can end up with a surprise ordinary-income or dividend tax bill.

If you decide to keep co-owning it

Some couples do — usually the amicable ones, or the ones too tired to argue about who gets the QuickBooks login. The tax mechanics don’t change; the paperwork does. No more joint estimated payments, no more QJV shortcut, and the partnership agreement now needs to spell out in writing what used to get settled over coffee.

📎 Go deeper: IRS Publication 504 covers property settlements and filing status changes after divorce, straight from the source. →

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THE WEEKLY POLL

Be honest: do you know what your business would sell for right now?

Yes, I’ve had it valued recently

I have a rough guess

No idea whatsoever

The Strategy

📊 What’s your business actually worth? Depends who you ask.

Stock Charts during a live trading session

Photo by Nicholas Cappello on Unsplash

The Quick & Bristly: Courts and appraisers value a business one of three ways: what it earns, what similar businesses sold for, or what it owns minus what it owes. The number they land on doesn’t just decide who gets what — it also decides whether “goodwill” gets split, since the goodwill tied to you often isn’t marital property, while the goodwill tied to the business usually is.

A business doesn’t come with a price tag the way a house does, so someone has to invent one — usually a forensic accountant, and usually two of them, since each side hires their own and the numbers rarely land in the same zip code.

Three ways to price a business

What it earns: Take the business’s real, adjusted profit and turn it into a value using a formula that accounts for risk. Best for a healthy, ongoing business — and where most of the fighting happens, because it hinges on what counts as “reasonable” owner pay versus profit, and everyone has a different opinion on that.
What similar businesses sold for: Like using recent home sales to price a house. Works great for restaurants and franchises, where there’s data. Falls apart for anything one-of-a-kind, because there’s nothing to compare it to.
What it owns minus what it owes: The simplest math, and usually the least flattering. Fine for a business that’s mostly equipment and inventory; badly undersells a business whose real value is the owner’s skill and client list.

The goodwill fight

Goodwill is the extra value a business has beyond its stuff — its reputation, its client relationships, its “why people pay for this instead of the competitor.” Courts split it into two flavors:

Enterprise goodwill: belongs to the business, would transfer to a new owner, usually counted as marital property.
Personal goodwill: belongs to you — your name, your relationships, your specific talent. It walks out the door when you do, and many states won’t count it as marital property at all.

For a one-person brand — a consultant, a specialist, anyone who is the product — arguing that a big chunk of the value is personal goodwill can shrink what’s actually on the table. It’s a genuine judgment call, which is why it’s fought over harder than almost anything else in a business divorce.

The number that comes out of all this sets the price tag for the buyout — and the structure of that buyout is what actually decides the tax bill.

📎 Go deeper: The IRS’s own Valuation of Assets page links to the job aids its appraisers use — worth a skim to see how the other side thinks. →

The Deep Dive

🔐 Your retirement account has opinions about your divorce

Serious senior couple is dealing with bills reading financial papers and counting money in apartment. Household, family and modern lifestyle concept.

Photo by Vitaly Gariev on Unsplash

The Quick & Bristly: A QDRO divides an ERISA-qualified plan like a Solo 401(k) tax- and penalty-free. It’s not required — and doesn’t apply — to a SEP-IRA or SIMPLE IRA, which use a simpler process. Using the wrong one is one of the most expensive mistakes in a business owner’s divorce.

If you’re self-employed, your retirement savings probably live in a Solo 401(k), SEP-IRA, or SIMPLE IRA. All three get favorable tax treatment going in — and divide completely differently coming out.

That difference comes down to one law: ERISA, the federal act that governs most employer-style retirement plans, including 401(k)s. ERISA plans need a special court order — a QDRO — to split. IRAs were never covered by ERISA, so they skip that step entirely.

Solo 401(k): needs a QDRO

Solo 401(k)s are qualified plans, structured like an employer 401(k) but for a business with no employees other than the owner. A Qualified Domestic Relations Order instructs the plan to pay a defined share to the “alternate payee” spouse.

Done correctly: the alternate payee rolls their share into their own IRA — no tax, no penalty.
Done incorrectly (owner cuts a check instead): the owner owes income tax and potentially a 10% penalty on money they no longer have.

SEP-IRA and SIMPLE IRA: no QDRO needed

These are legally IRAs, so they split through a “transfer incident to divorce” — the custodian divides the account based on the divorce decree, no court order required. The common mistake runs the other way: delaying for a QDRO that was never necessary, or taking a distribution and writing a personal check, which turns a tax-free transfer into a taxable one for nothing.

One more wrinkle: Only the portion accrued during the marriage is typically divisible, and tracing that requires contribution history, not just current balance.

📎 Go deeper: The IRS’s own QDRO overview spells out what makes an order “qualified.” →

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Freebie

📥 The Business Owner Divorce Tax Consideration Checklist

checklist ticking home office studio graphic tablet computer equipment

Photo by Jakub Żerdzicki on Unsplash

This week’s free download: The Business Owner Divorce Tax Consideration Checklist

What’s inside:

Filing status & elections — what happens to your QJV election and when
The ownership transfer — spousal buyout vs. entity redemption, and the §1041 question
Valuation & goodwill — what to lock down before the number gets contested
Retirement accounts — QDRO vs. transfer-incident-to-divorce, by account type
If you keep co-owning it — what needs to be in writing now
Questions to bring your CPA before you sign anything

📥 Download the checklist

🎧 Listen: “Divorce and Your Money,” hosted by CDFA Shawn Leamon — practical, numbers-first episodes on dividing complex assets. Find it here.
🛠️ Use: MassMutual’s free Business Valuation Calculator — a quick gut-check before two professionals charge you to disagree about it.
📖 Read: Kiplinger’s “Can a Divorced Couple Keep a Business Afloat?” — a piece written by a CPA/attorney specifically for spouses who co-own a business and are weighing whether to keep running it together after the divorce is final.
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💔 You built the business together. Now you have to un-build it.