Mississippi has no state estate tax, but federal estate tax may still apply to your estate

Mississippi does not charge a state estate tax. This means your heirs will not owe Mississippi any tax based on the value of what you leave behind. However, the federal government does have an estate tax, and it applies to Mississippi residents the same way it applies everywhere else in the United States.

Whether your estate pays federal tax depends on how much money and property you leave behind. The federal threshold changes every year. In 2024, estates worth more than $13.61 million are subject to federal estate tax. In 2025, that threshold rises to $13.99 million. After 2025, the threshold is scheduled to drop significantly unless Congress changes the law.

Most Mississippi estates do not reach these thresholds, which is why most people in the state do not face federal estate tax. But if your estate is large, or if you are married and planning jointly with your spouse, you should understand how the federal system works and what your heirs might owe.

Key Takeaways

  • Mississippi has no state estate tax, so your estate will not owe Mississippi any tax regardless of size.
  • Federal estate tax applies only to estates worth more than $13.61 million in 2024 or $13.99 million in 2025, and the threshold drops after 2025 unless Congress acts.
  • Married couples can combine their thresholds through portability, potentially doubling the amount that passes tax-free to heirs.
  • The federal tax rate on taxable estates is 40 percent, and it applies to the amount over the threshold, not the entire estate.
  • Proper planning through wills, trusts, and lifetime gifts can reduce or eliminate federal estate tax for large estates.

How the federal estate tax threshold works

The federal estate tax threshold is the dollar amount your estate can reach before any federal tax is owed. Think of it as a shield: everything up to the threshold passes to your heirs tax-free. Anything above the threshold is taxed at 40 percent.

The threshold is not fixed. Congress sets it, and it changes most years. The current thresholds are $13.61 million for 2024 and $13.99 million for 2025. These numbers are adjusted for inflation each year. However, under current law, the threshold is scheduled to drop to approximately $7 million per person (adjusted for inflation) starting in 2026, unless Congress passes new legislation to prevent that change.

Your estate includes everything you own at death: your home, bank accounts, retirement accounts, life insurance, vehicles, and personal property. It also includes certain gifts you made during your lifetime if they exceeded annual limits. The value of your estate is what matters for the threshold calculation, not the value of what you owe.

Married couples and portability

If you are married, you and your spouse each have your own threshold. This means a married couple can pass up to $27.22 million in 2024 (or $27.98 million in 2025) to their heirs without owing federal estate tax, assuming they plan properly.

The tool that makes this work is called portability. When the first spouse dies, the surviving spouse can claim the unused portion of the deceased spouse's threshold. This requires filing a federal estate tax return even if no tax is owed — a form called the Form 706. The return must be filed within nine months of death (or within fifteen months if an extension is requested).

Without portability planning, if one spouse dies and leaves everything to the other spouse, the surviving spouse gets only their own threshold when they die later. The first spouse's unused threshold is lost. This is why married couples with large estates should work with an estate planning attorney to ensure portability is properly documented.

What the 40 percent tax rate means

If your estate exceeds the threshold, the federal government taxes only the amount over the threshold at a rate of 40 percent. The tax does not apply to your entire estate — only to the excess.

For example, if you died in 2024 with an estate worth $15 million, the taxable amount would be $1.39 million ($15 million minus the $13.61 million threshold). The federal tax owed would be $556,000 (40 percent of $1.39 million). Your heirs would receive $14.444 million after the tax is paid.

This tax is paid from the estate before assets are distributed to heirs, unless your will or trust specifies otherwise. The executor or trustee is responsible for calculating the tax, filing the return, and paying it to the IRS.

Lifetime gifts and the annual exclusion

You can give money or property to other people during your lifetime without triggering federal estate tax, up to a limit. In 2024, you can give up to $18,000 per person per year without it counting against your estate tax threshold. In 2025, that amount rises to $19,000 per person per year.

If you give more than the annual exclusion to one person in a single year, the excess counts against your lifetime threshold. This does not mean you owe tax immediately — it just means your threshold is reduced by that amount. For example, if you gave $50,000 to your child in 2024, the $32,000 over the annual exclusion would reduce your estate tax threshold from $13.61 million to $13.578 million.

Spouses can give unlimited amounts to each other during life or at death without any tax consequences. Gifts to charities also do not count against your threshold. These rules can be useful for people with large estates who want to reduce what their heirs will owe.

What happens after 2025

The current high thresholds ($13.61 million in 2024, $13.99 million in 2025) are temporary. They were set by the Tax Cuts and Jobs Act of 2017, which is scheduled to expire at the end of 2025. Unless Congress passes new legislation, the threshold will drop to approximately $7 million per person (adjusted for inflation) starting January 1, 2026.

This means estates that are safe from federal tax today might owe tax in 2026 if the law changes as scheduled. Married couples could see their combined threshold drop from nearly $28 million to around $14 million. This is a significant change, and it is one reason people with substantial estates should review their plans now rather than waiting.

Congress could extend the current thresholds, change them to a different amount, or let them expire as scheduled. There is no way to know what will happen until Congress acts. However, people with estates over $7 million should not assume they are safe from federal tax after 2025.

Planning strategies for large estates

If your estate is large enough that federal tax might apply, several planning tools can help reduce or eliminate the tax your heirs will owe. These strategies work best when planned in advance, not after death.

A revocable living trust does not reduce estate tax by itself, but it can make it easier for your heirs to manage and distribute your assets after you die. An irrevocable life insurance trust can remove life insurance proceeds from your taxable estate, which can save significant tax if you have a large policy. Charitable trusts allow you to support causes you care about while reducing your taxable estate. Family limited partnerships and grantor retained annuity trusts are more complex tools that can discount the value of assets for tax purposes.

These strategies require professional help to set up correctly. An estate planning attorney can review your situation and recommend which tools make sense for you. The cost of planning now is usually far less than the federal tax your heirs would owe without it.

Frequently Asked Questions

Do I need to file a federal estate tax return if my estate is under the threshold?

Not usually. However, if you are married and want to preserve your spouse's unused threshold through portability, you must file a federal estate tax return (Form 706) even if no tax is owed. This return must be filed within nine months of death. Talk to your executor or an estate attorney about whether filing is necessary in your situation.

Does Mississippi have an inheritance tax on what heirs receive?

No. Mississippi has no inheritance tax. Heirs do not owe Mississippi any tax based on what they inherit. Federal estate tax is different — it is paid by the estate, not by individual heirs — and it applies only to very large estates.

If I give my child $50,000 today, will they owe tax on it?

No. Your child owes no tax on a gift they receive. The gift might reduce your own estate tax threshold if it exceeds the annual exclusion ($18,000 in 2024, $19,000 in 2025), but your child has no tax obligation.

What is the difference between estate tax and income tax on inherited money?

Estate tax is paid by your estate before assets are distributed and applies only to very large estates. Income tax is paid by heirs on income they earn after inheriting — for example, interest or dividends from inherited investments. Most inherited money itself is not subject to income tax.

Should I be worried about federal estate tax if my estate is worth $10 million?

In 2024 and 2025, no. Your estate would be under the threshold. However, if the threshold drops to $7 million in 2026 as currently scheduled, your estate could be affected. You should review your plan with an estate attorney to understand what might happen after 2025 and whether any planning makes sense now.