Separate Property vs. Marital Property — The Critical Distinction

In Arizona — a community property state — property acquired during a marriage is generally considered community property owned equally by both spouses. However, property received as an inheritance or gift is classified as separate property, which belongs solely to the recipient and is not subject to division in divorce.

The key: separate property only stays separate if it's treated as separate. Here's what determines classification:

How to Protect an Inheritance You've Already Received

If you've received an inheritance and want to protect it from a future divorce — or protect it if you're already experiencing marital difficulties — here's what matters:

• Keep it in a separate account in your name only. Open a dedicated investment or savings account solely for the inheritance. Never deposit marital income into this account. Never pay marital expenses from it. The cleaner the separation, the stronger the protection.
• Document the source clearly. Keep records showing where the money came from — the estate distribution documentation, the check, the wire transfer records. Paper trail matters if the source is ever contested in divorce proceedings.
• Don't add your spouse to the account. Joint title converts separate property to community property immediately. Resist the convenience of adding a spouse to simplify account management.
• Don't use it for marital expenses. Using inherited funds to pay the joint mortgage, fund joint vacations, or cover joint bills creates a commingling argument. If you choose to use some for shared expenses, document that clearly — but expect that amount to lose its separate property status.
• Consider a prenuptial or postnuptial agreement. A prenup (before marriage) or postnup (during marriage) that specifically identifies the inheritance as separate property provides the strongest contractual protection — agreed to by both spouses, enforceable in court.

When the Trust Structure Provides the Strongest Protection

A trust that holds inherited assets for a beneficiary provides fundamentally stronger divorce protection than an outright inheritance because the beneficiary doesn't actually own the assets — the trust does:

• The beneficiary's spouse cannot claim assets the beneficiary doesn't own. Trust assets are owned by the trust — not the beneficiary. A divorcing spouse can argue about the beneficiary's community property, but not about property the beneficiary holds in trust.
• The trustee can withhold distributions during a divorce. If a beneficiary is going through a divorce, a trustee with discretionary distribution authority can pause or reduce distributions — preventing those distributions from becoming community property during the divorce period.
• No commingling risk for the principal. While a beneficiary can still commingle distributed funds with marital assets, the undistributed trust principal never enters the beneficiary's personal estate — it can't be commingled because it's never in the beneficiary's hands.
• Spendthrift provisions prevent voluntary assignment. A beneficiary cannot voluntarily pledge their trust interest to a spouse or make their trust interest part of a divorce settlement — spendthrift provisions prevent this.

Common Mistakes

• Depositing the inheritance into a joint account. This single action is the most common and most consequential way an inheritance loses its separate property status. Open a separate account immediately.
• Using inherited funds to pay off the joint mortgage or make home improvements. The money may be gone — absorbed into marital equity that will be divided in the divorce. If you want to use inherited funds for the marital home, document it carefully and expect to negotiate its treatment in a potential divorce.
• Not keeping records of the inheritance source. In a divorce, the burden is on the party claiming separate property to prove the source. Without documentation — estate records, bank statements showing the transfer, the original check — courts may treat funds as community property by default.
• Assuming time heals all — "it happened 15 years ago." The age of an inheritance doesn't automatically protect it. What matters is whether it remained separate throughout. A 20-year-old inheritance in a separate account is still separate property; a 2-year-old inheritance that was commingled is not.
• Parents leaving inheritance outright rather than in trust. The most reliable protection for children's inheritance from divorce comes from the parent's estate planning — not from the child's behavior. Leaving wealth in a properly structured trust is far more reliable than expecting the child to maintain separation throughout a marriage that may end.

Real-Life Example