If you married in Texas, or moved here and stayed, you live in a community property state — one of only nine. Most couples know the phrase. Far fewer know it changes who owns what, how much of it your will can direct, and what the survivor pays in tax on thirty years of appreciation.
The short answer: yes, and mostly in your favor. Community property carries one of the most valuable tax breaks in the federal code — the reason a couple in Plano or Southlake can hold a portfolio for decades and watch the built-in gain disappear at the first death. But the same rules mean your will controls less than you think, and a document drafted in another state can quietly stop doing its job. The favorable part is automatic. The part that goes wrong needs attention.
What “Community Property” Actually Means Here
Texas draws a fairly bright line. Separate property is what you owned before the marriage, anything you received during it by gift or inheritance, and most personal injury recoveries. Community property is everything else acquired during the marriage — paychecks, the retirement contributions they funded, the house, the brokerage account you opened in 2011.
Two details do most of the work. First, the presumption runs toward community: property either of you possesses during the marriage is presumed community, and rebutting that takes clear and convincing evidence. A high bar — which is why documenting an inheritance or a premarital account matters long before anyone dies.
Second, the one that surprises people: each of you owns an undivided one-half interest in the whole community estate. Not “his account” and “her account.” Half of each, no matter whose name is on the statement.
Which reframes most estate plans in a single sentence: your will can only give away your half — the other half was never yours to direct.
The Tax Break That Makes This Worth Understanding
When someone dies, the assets in their estate get a new cost basis equal to fair market value that day, and decades of appreciation simply stop being taxable. In most states, when a couple holds an asset jointly, only the deceased spouse’s half gets that treatment; the survivor’s half keeps its old, low basis.
Community property states get something better. Under federal tax law, the surviving spouse’s half is treated as though it were acquired from the decedent — so both halves step up at the first death. The technical name is a double step-up in basis. The practical name is a very large check you never write.
A second Texas advantage stacks on top: the state imposes no estate tax and no inheritance tax. The only exposure most couples face is federal, and for 2026 the exclusion is $15 million per person — roughly $30 million for a couple who handle portability correctly. So, for most DFW families, estate planning here isn’t an estate tax problem at all. It’s a basis, titling, and documents problem — and those cost real money.
What Happens If You Never Write It Down
Texas intestacy law has two very different answers, and which one you get turns on a single fact: whether all the children are also the surviving spouse’s children. In the straightforward case, the law is more generous than most couples expect. In a blended family, it creates a tangle no one planned for.
If they are — or if there are no children at all — the deceased spouse’s half of the community estate passes to the survivor, who ends up owning all of it. That’s the outcome most couples picture, and the statute delivers it.
If the deceased spouse leaves a child who is not the surviving spouse’s child, the answer changes — though not in the way most people fear. The survivor keeps their own half, which was never the deceased spouse’s to give away. What passes to the children is the deceased spouse’s one-half interest.
So, the problem isn’t disinheritance. It’s co-ownership — a surviving husband or wife holding the house, the accounts, and the family business fifty-fifty with adult stepchildren, unable to sell, refinance, or reallocate without their cooperation. In a family with any friction in it, that’s harder to live with than a clean division.
Separate property splits differently again. With children, the survivor takes one-third of the personal estate and a life estate in one-third of the land; the rest goes to the children. An inherited ranch or a premarital account can pass largely out from under a spouse who assumed the whole thing was theirs.
One protection is worth knowing: the homestead cannot be partitioned among the heirs for as long as the surviving spouse chooses to occupy it. Ownership can fracture; the right to keep living there does not.
Where DFW Couples Get This Wrong
Six come up over and over, and all are fixable while both spouses are alive.
- Assuming it all just goes to the survivor. Sometimes it does; in a blended family it usually doesn’t. Rely on Texas defaults with a child from a prior relationship and you leave your spouse co-owning everything with your stepchildren. It’s the most common gap we see, and the one most likely to end in a lawsuit.
- Believing a joint account creates survivorship. It doesn’t. Texas lets spouses agree in writing that community property passes to the survivor at death, but the agreement must exist. The statute is explicit: survivorship cannot be inferred from the mere fact that an account is joint, or from a label like “JT TEN” or “joint tenancy.” Plenty of couples think both names on the card handled probate. It didn’t.
- Bringing an out-of-state will to Texas and leaving it alone. A will drafted in California, Illinois, or New York rests on assumptions about what you own. Move here and property acquired in Texas arrives as community property, while property acquired before the move generally keeps the character it had. The result is a document that tries to give away more than half of some assets and less than half of others — still valid but no longer doing what the drafting attorney intended.
- Retitling accounts to “fix” the character. Texas law says the mere transfer of separate property into the other spouse’s name, or into both names, is not sufficient to convert it. Conversion requires a written agreement, signed by both spouses, that identifies the property and says plainly it’s being converted. Retitling does something else entirely: it muddies the tracing you’d need to prove the property was ever separate.
- Letting beneficiary designations run on autopilot. Designations override your will, and Texas law cleans up what isn’t expressly designated. A divorce automatically voids an ex-spouse’s designation on life insurance, an IRA, and a bank account — state statutes cover all three. However, it does not reach your 401(k): those plans adhere to federal law. The Supreme Court has determined federal law overrides state revocation on divorce rules, so the plan pays the name on the form. While you’re married, federal law protects your spouse there — naming anyone else generally requires your spouse’s written, witnessed consent. After a divorce, that same federal law protects whoever the form still names, which may be the person you just divorced.
- Skipping the estate tax return at the first death. Portability isn’t automatic. To move a deceased spouse’s unused exclusion to the survivor, the estate must file Form 706 — even owing nothing and far below the filing threshold. The deadline is nine months, with a six-month extension. Miss it and a simplified late election runs to the fifth anniversary of the death. Miss that, and roughly $15 million of exclusion is gone for good.
A Simplified Illustration
Picture a Frisco couple with a community property brokerage account they’ve added to since the early 2000s. Cost basis is $500,000; it’s worth $1.5 million today — $1 million of built-in capital gain.
One spouse dies. Because the account is community property, both halves get a new basis at fair market value. The basis becomes $1.5 million and the entire $1 million gain vanishes. If the survivor sells the whole position next week to rebalance, the capital gains tax is zero.
Now run the same couple in a separate property state, holding the same account jointly. Only the decedent’s half steps up, so the new basis is $1 million — half the old basis plus half the current value — leaving $500,000 of gain on the books. At the top long-term capital gains rate plus the net investment income tax, that’s roughly $119,000 of tax the Texas survivor never owes.
Same couple. Same account. Same death. One rule of state property law, worth about $119,000 — and it only works if the account was still community property when the first spouse died. (PLEASE NOTE: This example is hypothetical and for illustrative purposes only; it assumes the full 23.8 percent top federal rate, an account that is entirely community property, and a static cost basis, none of which any real situation guarantees. Results depend on your bracket, holding periods, the specific lots involved, and whether the property’s character can be documented — investments can and do lose value.)
Key Considerations and Risks
Community property is a framework, not a plan, and the framework has sharp edges.
- A double step-up requires community property at the date of death. Partition agreements, conversions to separate property, and some joint trust structures can turn community property into something that only steps up halfway. An agreement put in place years ago to solve a creditor or divorce problem may have traded that benefit away without anyone weighing what it was worth. The trade may still be right — but it should be a decision, not a surprise.
- Converting separate property to community isn’t free of risk. It works, and couples do it deliberately for the basis benefit. But it’s irrevocable, it exposes formerly protected assets in a divorce, and federal law shuts the door on the aggressive version: property given to a spouse who dies within one year gets no step-up at all.
- Tracing is the whole ball game on separate property. Clear and convincing evidence means records. An inheritance deposited into a joint account, premarital equity rolled into a jointly purchased home, separate cash spent on community expenses — all get harder to untangle every year.
- This is legal work, and it belongs with an attorney. Marital property agreements, survivorship agreements, and wills must be drafted and executed correctly to hold up, and Mills Wealth Advisors is not a law firm. What we can do is spot where your titling and beneficiary designations don’t match the plan you think you have — and tell you which questions to take to counsel.
Where It Fits in a Wealth Strategy
If your estate is comfortably under the federal exclusion, and most are, the value here isn’t dramatic tax avoidance. It’s making sure the survivor — often the spouse less involved in the accounts — inherits a situation that’s simple, liquid, and free of built-in tax.
That comes down to a short list you can work through this quarter:
- Pull the titling on every account and ask whether it’s community or separate — and whether you can prove it.
- Read your will. Confirm it was drafted for a community property state and disposes of one-half interests, not whole assets.
- Check whether you have an actual written survivorship agreement, not just a joint account you assumed was one.
- Pull every beneficiary designation — 401(k), IRA, life insurance, annuities — and read the names out loud. Confirm the plan documents accept them.
- If a spouse has died in the last five years and no estate tax return was filed, ask whether the late portability election is still available.
None of that requires a market view or a product. It’s housekeeping with a very high hourly rate.
How Mills Wealth Advisors Can Help
If you’ve moved to Texas with out-of-state documents, you’re in a blended family, or you just want a second set of eyes on how your accounts are titled against what your will says, we’d be glad to walk through it with you and coordinate with your attorney and CPA.
Disclosure: This material is provided for informational and educational purposes only and does not constitute tax, legal, or personalized investment advice. Mills Wealth Advisors is not a tax or legal advisor and does not practice law. Texas marital property law, intestacy rules, federal exclusion amounts, and basis rules change over time and depend on individual circumstances; figures cited reflect published amounts as of September 2026 and should be confirmed with your tax and legal advisors before you act. Marital property agreements, survivorship agreements, and wills should be prepared by a licensed Texas attorney. Investing involves risk, including the possible loss of principal. Past performance is not a guarantee of future results.