Florida law protects inherited assets from division in a divorce. An inheritance you received, whether from a parent, grandparent, or anyone else, is classified as nonmarital property under Florida Statute 61.075 and is not subject to equitable distribution. You are supposed to walk out of a divorce with it intact.
Except when you are not, because of something called commingling.
Commingling is the process by which separate property, including an inheritance, loses its protected status by being mixed with marital property in a way that makes it impossible or impractical to trace the separate funds back to their original source. When that happens, a court can find that the inheritance has become marital property, subject to division just like any other marital asset. And the most troubling thing about commingling is that it usually happens gradually, through entirely normal financial behavior, without the inheriting spouse realizing they are giving away a legal protection they did not know they had.
Understanding exactly how commingling occurs, what the legal consequences are, how courts analyze tracing arguments, and what can be done to prevent or address it is essential for anyone in a Tampa divorce who has inherited assets.
What Commingling Actually Means Under Florida Law
Florida Statute 61.075(6)(b) classifies assets acquired by bequest, devise, or descent during the marriage as nonmarital assets. This statutory protection is the legal basis for treating an inheritance as separate property in a divorce.
The same statute also addresses what happens when nonmarital property is mixed with marital property. The commingling doctrine operates as a limitation on the statutory protection: when a nonmarital asset is so thoroughly mixed with marital assets that the nonmarital portion can no longer be identified and traced to its separate source, the mixed funds may be treated as marital property.
The critical word is trace. Florida courts place the burden of proving that an asset retains its nonmarital character on the spouse claiming it. If you want to protect an inheritance in a divorce, you must be able to demonstrate, through documentary evidence, that the funds you are claiming are nonmarital are the same funds that came from the inheritance. If you cannot trace the inheritance through the financial history to its current form, the court may conclude that the nonmarital character has been lost.
This tracing requirement is what makes commingling such a practical threat to inherited assets. The ability to trace depends on how the inheritance was handled, how thoroughly the financial records document the inheritance’s journey, and how cleanly the inherited funds were kept separate from marital money.
A Tampa divorce lawyer advising a client with inherited assets will assess the tracing evidence available and advise on how strong the argument for nonmarital characterization is given the specific financial history.
The Most Common Ways Commingling Happens
Commingling rarely happens in a single dramatic moment. It typically occurs through a series of ordinary financial decisions that feel entirely normal during a marriage but that gradually erode the legal protection the inheritance carries.
Depositing the Inheritance Into a Joint Account
This is the most common and most complete form of commingling. When an inherited lump sum is deposited into a joint checking or savings account, it immediately mixes with marital funds. Paychecks come in. Household expenses go out. Mortgage payments, grocery bills, utility payments, and hundreds of other transactions flow through the account.
After a few months of this activity, the inherited funds are no longer identifiable as a distinct pool of money. They have been mixed into the general flow of marital finances in a way that makes tracing extremely difficult. A court evaluating whether any particular dollar in that account came from the inheritance, as opposed to a paycheck or other marital income, faces an essentially impossible task.
When the tracing becomes impossible, courts typically treat the entire account as marital, including what was originally the inheritance. The inheriting spouse has effectively lost the protection of the nonmarital classification through the act of deposit.
Using Inherited Funds for Joint Marital Purchases
Using inherited money to make purchases that become joint marital assets is another path to commingling. An inheritance used as a down payment on the marital home, to buy a vehicle that both spouses use, or to fund a vacation that both enjoy has been converted into a shared marital benefit in a way that makes the separate identity of the funds harder to preserve.
The practical question courts ask is whether the inherited money can still be traced to a distinct nonmarital asset, or whether it has been absorbed into the marital estate through its use. Inherited funds used to purchase an asset that remains solely in the inheriting spouse’s name, funded entirely by the inheritance with no marital money involved, are more traceable than inherited funds mixed with marital funds to purchase a joint asset.
Paying Down the Joint Mortgage with Inherited Funds
When an inheritance is used to pay down or pay off the mortgage on the marital home, the inherited money is being invested in a jointly owned marital asset. The mortgage reduction increases the equity in the home, which is a marital asset. The question of whether the inheriting spouse can claim the mortgage paydown as a nonmarital contribution to the home’s equity requires tracing the payment back to the inheritance and demonstrating that the equity increase attributable to that payment remains the inheriting spouse’s separate property.
Courts have addressed this scenario in various ways. Some have found that a documented mortgage paydown from a clearly identified inheritance creates a traceable nonmarital contribution to the marital home’s equity. Others have found that once inherited funds are invested in a joint marital asset, the character of those funds as nonmarital is lost because they have been used for a marital purpose.
Gradual Portfolio Integration
For larger inheritances that include investment portfolios or brokerage accounts, gradual integration with marital investment assets is a form of commingling that can be subtle. If an inherited brokerage account receives additional deposits from marital income, if marital funds are used to reinvest dividends from an inherited portfolio, or if the inherited portfolio is transferred into a joint account that also holds marital investments, the separate character of the inherited portfolio becomes increasingly difficult to establish.
Investment accounts can also be commingled through account consolidation. A spouse who inherits a portfolio and then transfers it into an existing joint brokerage account, or who opens a joint account to hold both inherited and marital investments, has created a commingling situation that may require forensic accounting to unravel.
The Tracing Analysis: What Courts Actually Look At
When a spouse claims that assets in a commingled account or investment include nonmarital inherited funds, the court conducts a tracing analysis. The goal of tracing is to follow the inherited funds through the financial history to determine whether any identifiable portion of the current assets can be traced back to the inheritance.
Florida courts have recognized several tracing methods, but all of them depend on documentary evidence. The tracing analysis is only as strong as the records that support it.
First-In, First-Out Tracing
One tracing methodology assumes that deposits are spent in the order they were received: the first money deposited into an account is the first money spent. If an inheritance was deposited into a joint account and subsequent withdrawals exceeded the account balance that existed before the inheritance was deposited, this methodology would conclude that the inherited funds have been spent.
Lowest Balance Tracing
Another approach looks at the lowest balance the account reached after the inheritance was deposited. If the account balance fell below the amount of the inheritance at any point after the deposit, this methodology concludes that the inherited funds were spent down to that extent and that only what remained above the lowest subsequent balance might still be traceable to the inheritance.
Documentation-Based Tracing
The most reliable tracing approach is documentation-based: actual records showing the movement of funds from the inheritance to their current location. Estate distribution records showing when the inheritance was received, deposit records showing the funds moving into a specific account, and records showing those funds moving from that account into another account or being used to purchase a specific asset, all create a documented chain that traces the inheritance to its current form.
This approach works best when the inherited funds were kept separate from the beginning, because the chain of documentation is clear and unbroken. It becomes progressively more difficult when funds have been mixed, because the documentation shows multiple sources of funds flowing into and out of the same account without a clear separation between inherited and marital money.
The Role of Forensic Accountants
In high-asset divorce cases where significant inherited assets are at issue and commingling has occurred, forensic accountants perform the tracing analysis. A forensic accountant can analyze years of financial records, trace the movement of funds through multiple accounts and transactions, and present a defensible reconstruction of how inherited funds moved through the marital financial picture.
This forensic work is expensive, but the cost is often justified when the inheritance is substantial. The difference between successfully tracing a six-figure inheritance as nonmarital property and losing that argument because the tracing was not adequately documented can be far greater than the cost of the forensic analysis.
A Florida divorce attorney handling a case with significant inherited assets and commingling concerns will engage a forensic accountant early to assess what the records show and to develop the strongest possible tracing argument.
Active Appreciation: The Other Inheritance Risk
Commingling is not the only way an inheritance can become partially marital. Even when the inheritance itself is kept cleanly separate, the appreciation of an inherited asset during the marriage can become partially marital through a doctrine called active appreciation.
Florida Statute 61.075(6)(a)(1) defines marital assets to include the enhancement in value and appreciation of nonmarital assets resulting from the efforts of either party during the marriage or from the contribution of marital funds or marital labor. This is the active appreciation rule.
Passive appreciation of a nonmarital asset, growth that occurs because of market forces or inflation without any meaningful contribution from either spouse, remains nonmarital. If an inherited stock portfolio increases in value because the stock market goes up, and neither spouse actively managed the portfolio or contributed marital funds to it, the appreciation is passive and nonmarital.
Active appreciation is different. If an inherited investment is actively managed by one or both spouses during the marriage, using marital time, expertise, or resources to grow its value, the growth attributable to that active management is marital. If marital funds are invested in an inherited asset, the growth attributable to those funds is marital.
The practical challenge is that active and passive appreciation can be difficult to separate, particularly for investments where returns reflect both market conditions and management decisions. Forensic accountants and investment experts are often needed to analyze what portion of an inherited portfolio’s growth is attributable to market forces versus active management.
For inherited real estate, active appreciation arguments are particularly common. If an inherited property was improved using marital labor, marital savings, or joint financial decisions, the improvements and the resulting value increase may be marital. The analysis requires documenting what the property was worth at the time of the inheritance, what work was done during the marriage and with what funds, and how much of the current value increase is attributable to those marital contributions versus market appreciation.
A Tampa divorce attorney advising a client with inherited appreciated assets will assess both the commingling risk and the active appreciation risk as part of the overall strategy for protecting the inheritance in the divorce.
Protecting an Inheritance From Commingling: What Should Have Happened
For people who have not yet received an inheritance or who have received one recently, the steps to protect it from commingling are relatively straightforward. For people who are already in a divorce where commingling has occurred, the focus shifts to damage control through tracing and negotiation.
The Ideal Protection: A Separate Account in Your Name Only
The most effective protection for an inherited lump sum is to deposit it into a bank or investment account that is in your name only, not in a joint account, and to keep that account exclusively funded by the inheritance and its returns. No marital money should go in. No marital expenses should come out.
When the inheritance stays in a separate account that receives no marital deposits and makes no marital payments, the tracing argument is clear: this account holds the inheritance, and its current balance is nonmarital.
Documenting the Inheritance From the Start
From the moment you receive an inheritance, documenting it creates the foundation for tracing. Estate distribution records, probate accountings, checks from the estate, wire transfer records, and any other documents that show you received the inheritance in a specific amount at a specific time are the starting point for the chain of documentation.
Those records should be preserved even if they seem unlikely to be needed later. A divorce that happens fifteen years after an inheritance was received will require documentation of that inheritance, and records that were not saved at the time are difficult or impossible to reconstruct.
A Prenuptial or Postnuptial Agreement
The strongest protection for inherited assets, both current and anticipated, is a prenuptial or postnuptial agreement that specifically designates inherited assets as nonmarital. Such an agreement can address commingling directly, providing that depositing inherited funds into a joint account for household purposes does not convert them to marital property, and that using inherited funds to pay marital expenses does not change their nonmarital character.
This contractual protection goes beyond what the statute alone provides, because it removes the commingling question from the court’s discretion. If the agreement clearly states that inherited funds remain nonmarital regardless of how they are handled during the marriage, that provision controls over the commingling doctrine.
A Florida divorce attorney who works with clients who have or anticipate significant inherited assets will often recommend a prenuptial or postnuptial agreement as the most reliable protection, alongside careful financial management.
Frequently Asked Questions
If I deposited my inheritance into our joint account ten years ago, is it definitely gone as nonmarital property?
Not necessarily, but the tracing challenge is significant. Whether any of the original inheritance can still be identified as nonmarital depends on the financial history of the account since the deposit. If the account balance has always remained above the amount of the inheritance since it was deposited, some tracing arguments may remain available. If the account balance fell below the inheritance amount at any point, those funds may be treated as spent. A forensic accountant who can analyze the full account history will be needed to assess what is actually traceable.
Can I use a prenuptial agreement to protect inherited assets I have not yet received?
Yes. A prenuptial agreement can include provisions that address future inheritances, specifying that any assets received by either spouse through gift or inheritance during the marriage will remain that spouse’s separate property. The agreement can also address how inherited funds will be handled, what constitutes commingling, and what does not, removing the ambiguity that the commingling doctrine creates. This is one of the most effective uses of a prenuptial agreement for people who anticipate receiving significant inheritances.
What if my spouse worked in a business I inherited? Does that make it marital?
If your spouse’s active involvement in an inherited business generated value, that value may be characterized as marital under the active appreciation doctrine. The analysis distinguishes between the original business as inherited, which is nonmarital, and the growth in the business’s value attributable to your spouse’s efforts during the marriage, which may be marital. Separating these components requires forensic accounting and business valuation expertise. The fact that your spouse worked in the business does not make the entire business marital, but it may make the active appreciation during the marriage marital.
I used inherited money to renovate our marital home. Did I lose that money?
Using inherited money to renovate a marital home creates a commingling risk because the inherited funds have been invested in a jointly owned marital asset. Whether you retain a nonmarital claim to the value of those improvements depends on whether the improvements can be specifically identified and valued in the home’s current worth. Some courts have recognized a nonmarital contribution to a marital home’s equity when the source of the improvement funds is well-documented. Others have found that once inherited funds are used to improve a marital asset, the funds have been converted to a marital purpose. Documentation of the renovation costs, the source of the funds, and the improvement’s contribution to the home’s current value is essential for this argument.
Does the same commingling risk apply to gifts from family members?
Yes. Florida law treats gifts received by one spouse from a third party during the marriage the same way it treats inheritances: they are nonmarital assets subject to the same commingling analysis. A substantial gift from a parent, grandparent, or other family member that is deposited into a joint account or used for marital purposes is subject to the same risk of losing its nonmarital character as an inheritance. The same principles apply, and the same protective steps are appropriate.
Can a court find that only part of an inheritance was commingled?
Yes. Courts can make partial findings about commingling when the evidence supports it. If documentation shows that the inheriting spouse kept part of an inheritance separate and used another part for marital purposes, the court can find that the separately held portion remains nonmarital while the commingled portion has been converted to marital property. The ability to make this kind of partial finding depends on documentation clear enough to support the distinction.
What if my spouse is claiming my inheritance is marital but I have records showing I kept it separate?
If you have documentation establishing that you kept the inheritance separate, those records are the foundation of your defense against the commingling claim. Bank statements showing the inheritance was deposited in a separate account in your name only, records showing no marital deposits into that account, and evidence that the account balance represents the inheritance and its returns all support the nonmarital characterization. Work with a Florida divorce attorney who can evaluate the strength of your records and develop the most effective argument for the nonmarital character of the inherited assets.
Commingling is one of the most consequential and least understood concepts in Florida divorce law. The protection that inherited assets receive under Florida Statute 61.075 is real but conditional, and the conditions are not intuitive. Normal financial behavior during a marriage can quietly convert a protected inheritance into a divisible marital asset, without any moment of deliberate decision and without the inheriting spouse realizing what is happening. For Tampa divorcing spouses who have inherited assets, or who may receive inheritances in the future, working with a Tampa divorce lawyer who understands both the commingling doctrine and the practical steps that protect inherited assets is the most reliable way to preserve what family members worked to leave behind.
Written by Damien McKinney, Founding Partner
Damien McKinney is the Founding Partner of The McKinney Law Group Family & Divorce Lawyers, bringing nearly two decades of experience to complex marital and family law matters. He is licensed in both Florida and North Carolina and has been repeatedly recognized as a Rising Star by Super Lawyers.