By Matt Ludt
Most people walk into a divorce assuming things are simple: what I brought in is mine, what we built together gets split. But Minnesota law doesn’t work that way by default. Everything is presumed marital. If you want to prove otherwise, you have to trace it — and tracing is where things get real.
I’ve spent twenty-plus years doing this work in the Twin Cities, and nonmarital tracing has come up in more of my cases than most people would guess. It’s not just for wealthy couples. It’s for the teacher who rolled her inheritance into an IRA before the wedding. It’s for the guy whose parents gifted him a down payment on a house that later became the family home. It’s for the woman whose military pension started a decade before she ever said “I do.”
Here are six things I think every divorcing Minnesotan should understand about tracing nonmarital interests — drawn from real patterns I’ve seen over and over again.
1. Minnesota Presumes Everything Is Marital — You Carry the Burden to Prove Otherwise
This is the starting line, and most people don’t realize it. Under Minnesota law, all property owned by either spouse at the time of divorce is presumed marital. Inheritances, gifts, premarital savings — none of it is automatically protected. If you want the court to treat something as nonmarital, you have to prove it with documentation, not just your word.
That burden sits on the person making the claim. And it’s a real burden. I’ve watched people with completely legitimate nonmarital interests lose them because they couldn’t produce the paper trail. The law doesn’t reward good intentions. It rewards good records.
2. There Are Two Ways to Trace Checking Account Funds — and They Produce Different Results
One of the clearest examples involves a checking account with both marital and nonmarital money sitting in it. Say you have $10,000 in a marital account, then a relative gifts you $25,000, and you use $24,000 for a house down payment. How much of that down payment is nonmarital?
It depends on which tracing method the court applies. Under proportional tracing, the down payment gets split based on the ratio of nonmarital to marital funds in the account at the time of withdrawal. Under direct tracing, the full $24,000 can be attributed to the gift — because the gift funds can be specifically identified and “directly traced” to the purchase.
Same facts, very different outcomes. This is one of the first things I explain to clients who assume tracing is straightforward.
3. Stock Shares Aren’t as Simple as Counting What You Started With
A client comes in and says, “I owned 400 shares before we got married. Those are mine.” Fair enough — until you factor in dividends reinvested during the marriage and a stock split. Now you’re looking at 860 shares, and figuring out which are marital and which aren’t requires tracking every reinvestment and corporate action during the marriage.
In practice, the original 400 nonmarital shares become 800 after a 2:1 split (still nonmarital), but the 60 shares from reinvested dividends during the marriage? Marital. You can’t just look at the ending balance and guess. You have to reconstruct the history share by share.
4. Investment Account Tracing Requires Allocating Growth to Each Dollar
When a nonmarital lump sum sits in an investment account alongside ongoing marital contributions, the investment returns have to be split proportionally. Every year, as new marital deposits come in, the ratio of nonmarital-to-marital money shifts — and the returns get allocated accordingly.
This is what makes tracing an investment account feel like forensic accounting. A $75,000 nonmarital starting balance, after five years of $1,000 annual marital contributions and fluctuating market returns, doesn’t stay cleanly separated. You have to recalculate the allocation at each interval. It’s tedious, meticulous work — but it’s the only way to get it right.
I want to pause here and say something about what this actually looks like from where I sit.
Over twenty years, I’ve spent more nights than I can count at my desk with old bank statements fanned out, a calculator, and a yellow legal pad, trying to reconstruct where money went. Tracing isn’t glamorous. It’s not courtroom drama. It’s quiet, stubborn detective work.
One case that still stays with me involved a couple fighting over a lake cabin. The wife had bought it before the marriage with inheritance money from her father. During the marriage, they’d done improvements — new dock, remodeled kitchen — paid for with joint funds. By the time they divorced, the place had doubled in value. Her husband argued the whole thing was marital because they’d both poured money into it. She argued it was hers because it was always hers.
The truth was in the middle, as it usually is. We traced the original down payment back through old bank records — statements from an account that barely existed anymore — and proved the principal was nonmarital. But the appreciation attributable to marital improvements? That was shared. Neither side got exactly what they wanted. Both sides got something fair.
5. When Marital Money Improves Nonmarital Property, the Value Split Gets Complicated
When marital money pays for home improvements on a nonmarital property, the improved value has to be accounted for separately. The approach handles this by first estimating the value the improvements added, removing that from the sale price, applying the nonmarital percentage to the remaining appreciated value, and then adding back the improvement value as marital.
It’s layered, but it makes sense once you see it: the house appreciated partly because of the market and partly because of marital investment. Each gets its own line. One couple I worked with had a family farm — passed down through the wife’s family, titled jointly “for protection” during the marriage. Marital funds paid down the mortgage and funded improvements. Untangling that took months. But without doing the work, one side or the other would have gotten an unfair deal.
6. Stock Options and Restricted Stock Units Require a Time-Based Analysis
Equity compensation — stock options, RSUs — often vests over several years, which means part of the vesting period might fall before or after the marriage. Minnesota uses a time-based analysis to figure out the marital portion: you calculate what percentage of the vesting period overlapped with the marriage and apply that percentage to the value.
If options were granted before marriage but didn’t fully vest until after, only the marital portion of the vesting period counts. Same logic applies to RSUs. This comes up constantly with tech workers and executives, and the math has to be precise — the grant date, vest date, and date of marriage all matter.
The Common Thread: Document Early, Document Everything
If there’s one thing I’d tell anyone reading this — married, about to be married, or thinking about divorce — it’s this: the law rewards proof. Nonmarital claims live or die on documentation. Bank statements, account records, appraisals, gift letters, tax returns. Keep them. Organize them. Don’t assume you’ll be able to find them later.
I’ve seen good claims fail because records were lost. And I’ve seen people protect what was rightfully theirs because they kept a file. Tracing isn’t about being adversarial. It’s about being accurate. And accuracy starts long before anyone files for divorce.
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/Oct 28, 2026
