Filing the Final Tax Return After a Spouse Dies in Nevada

The tax questions don't wait.

Even before the estate is settled — sometimes before the obituary is printed — someone is asking about the income tax return. Whose name goes on it? What year does it cover? Who files it?

If you get the Nevada-specific details right, you can protect tens of thousands of dollars that most surviving spouses walk away from without knowing.

Nevada's Tax Picture: Better Than You Think

Nevada has no state income tax, no state estate tax, and no inheritance tax. Your federal obligations are real, but you're not fighting two fronts.

The IRS wants its final accounting. You'll file Form 1040 for your spouse one last time — covering January 1 through the date of death.

The Final Return: What to Write, What to Include

Write "DECEASED" across the top of Form 1040, followed by the date of death. Sign your own name and add "Filing as surviving spouse."

The return covers all income your spouse earned or received from January 1 through the date of death: wages, self-employment income, interest, dividends, and required minimum distributions (RMDs) from retirement accounts.

If your spouse was receiving Nevada DETR unemployment benefits and some went unpaid, file an Affidavit of Deceased or Incompetent Person to claim those funds. Report the resulting 1099-G on the final return.

On community property: Nevada law means income earned by either spouse during the marriage is owned 50/50. For most couples who file jointly, this doesn't change anything. It only matters if spouses filed separately, which is unusual.

Your Filing Status for the Next Three Years

This is where most people leave money behind — and it's entirely legal to keep it.

The year your spouse dies, you file "Married Filing Jointly." Both exemptions. Lower joint tax rates.

The two years after, you can file as "Qualifying Surviving Spouse" — provided you have a qualifying child who lived with you for the full year and you paid more than half the cost of maintaining your home. Same tax brackets as Married Filing Jointly. The difference between those rates and Single filer rates runs to hundreds or thousands of dollars a year.

After that, you shift to Single — or Head of Household if you have a qualifying dependent.

Many surviving spouses don't apply this. Make sure you do.

The final 1040 is due April 15 of the following year. Form 4868 gives you a six-month extension.

The Double Step-Up in Basis: Nevada's Biggest Tax Advantage

This can save you tens of thousands of dollars — if you document it. Miss it, and you'll overpay capital gains taxes for years.

Here's how basis works: when you sell an asset, you owe capital gains tax only on appreciation above your original cost — your "basis." Higher basis, smaller taxable gain.

When one spouse dies, the IRS allows a "step-up" — the basis of inherited assets resets to the fair market value as of the date of death.

In most states, couples hold property as joint tenants. When one spouse dies, only the deceased spouse's half gets the step-up. Your half keeps the original basis.

Nevada works differently. Community property means both halves step up — the entire asset resets to date-of-death value.

Here's what that means in dollars. You and your spouse bought a house in 1990 for $150,000. It's worth $600,000 today. In a joint tenancy state, your new basis would be $375,000 — you'd still owe capital gains taxes on $225,000 when you sell. In Nevada, the entire basis resets to $600,000.

Sell tomorrow. Zero capital gains owed.

This applies to real estate, brokerage accounts, and stocks held as community property. (If any property's classification as community vs. separate is unclear, documentation becomes even more important — that's exactly where disputes arise.) It does not apply to IRAs, 401(k)s, or other tax-deferred accounts, which follow inherited IRA rules. And it doesn't apply to your spouse's separate property; only their half steps up.

How to Document the Step-Up (Don't Put This Off)

The step-up only protects you if you can prove the date-of-death value.

For real estate: get a certified appraisal dated as of the date of death. This becomes your new basis. Keep it permanently.

For brokerage accounts and stocks: the brokerage typically calculates the date-of-death value automatically. Confirm with them and save the statements.

When you eventually sell, your CPA will report the new basis on Schedule D. Good documentation makes this clean. Missing documentation makes it expensive. And if you get it wrong, you can file an amended return — but it's far easier to document correctly now.

Estate Income After Death

Income earned after the date of death belongs to the estate. If the estate has gross income over $600 — rent from property still in the estate, interest in an estate account, dividends on unsold stocks — it files Form 1041, the fiduciary income tax return. That's due the 15th day of the fourth month after the estate's fiscal year ends. Nevada has no state fiduciary income tax, so this is a federal-only filing.

On federal estate tax (Form 706): the 2025 exemption is $13.99 million per person. Most Nevada estates won't come close.

When to Hire a CPA

The final 1040 is often simpler than it looks — most of the complexity lives in the step-up documentation, not the return itself.

That said, get professional help if:

• You have real estate or investment accounts you plan to sell (a missed step on the step-up can cost more than years of CPA fees)
• Any assets are located out of state, where different rules may apply
• Your spouse had business interests, stock options, or complex retirement accounts
• You're unsure whether specific property was community or separate

If you're unsure, a one-time consultation is usually all it takes to figure out which bucket you're in.

Three things to do this week: Get the real estate appraisal (if applicable), confirm the date-of-death values with your brokerage, and note the filing deadline on your calendar.

The Nevada Survivor Benefits guide at /us/nevada/survivor-benefits/ covers the full tax picture — including the documentation steps for the community property step-up and the financial priorities for your first year. If you're working through the estate now, that's where to go next.

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