The Special Estate Tax Lien Under IRC 6324

Most people know the federal tax lien that comes with unpaid income tax: the IRS assesses, sends a bill, and eventually files a Notice of Federal Tax Lien in the county records. The estate tax lien works differently. Nobody files anything. It just exists.

That lien, created by IRC 6324, is one of the most powerful tools the IRS has against an estate that owes estate tax. Executors, trustees, and beneficiaries who do not know about it are the ones who get surprised.

What the statute does

IRC 6324(a)(1) provides that unless the estate tax is sooner paid in full, or becomes unenforceable by lapse of time, it is a lien upon the gross estate of the decedent for ten years from the date of death.

A few features make this lien unusual:

• It arises at death. It does not wait for a return, an assessment, or a notice and demand.
• It attaches to the gross estate. That is the estate tax concept, not the probate estate. It includes property passing outside probate: joint accounts, life insurance the decedent owned, assets in a revocable trust, and property included because of retained interests or powers.
• It needs no public filing. A title search will not find it.
• It lasts ten years from death. That period is fixed. IRM 5.8.10.4.1 describes the estate and gift tax liens as having an absolute life of ten years from the date of death or gift, not extended by an offer in compromise.

Property used to pay court-allowed charges against the estate and administration expenses is divested of the lien. Everything else stays subject to it until the tax is paid.

Who becomes personally liable

IRC 6324(a)(2) goes further. If the estate tax is not paid when due, then a spouse, transferee, trustee, surviving tenant, person in possession by reason of a power of appointment, or beneficiary who receives, or has on the date of death, property included in the gross estate under sections 2034 through 2042 is personally liable for the tax, up to the value of that property at the date of death.

Sections 2034 through 2042 are the provisions that pull non-probate assets into the gross estate: dower and curtesy interests, transfers with retained life estates, revocable transfers, annuities, joint interests, powers of appointment, and life insurance. In plain English: the people who received property outside the will can be on the hook.

That is a separate exposure from the executor's liability under the federal priority statute, covered in the guide to executor personal liability. A child who received a life insurance payout and a joint brokerage account can owe estate tax personally even though they never served as executor. The IRS collects that liability using the transferee procedures in IRC 6901.

What happens when the property is sold

The lien would make estate property impossible to sell if it followed the property forever. The statute deals with that.

Under IRC 6324(a)(2), property transferred by one of the liable persons to a purchaser or holder of a security interest is divested of the lien, and a like lien attaches to all the property of the transferor. IRC 6324(a)(3) adds that when gross estate property has been transferred to a purchaser after an executor's discharge, the lien attaches to the consideration received by the heirs.

So the lien does not vanish. It jumps from the house to the sale proceeds, or to the seller's other assets.

In practice, title insurers are not interested in parsing that statute at closing. When an estate that may owe estate tax sells a Sarasota condo or a Lakewood Ranch home, the title company often wants either proof that no estate tax is due or a certificate from the IRS discharging the property from the lien.

Discharge certificates: Form 4422

IRC 6325(c) authorizes the IRS to issue a certificate discharging specific property from the estate tax lien. The request is made on Form 4422, Application for Certificate Discharging Property Subject to Estate Tax Lien.

The statutory test is simple: the IRS may issue the certificate if it finds that the liability secured by the lien has been fully satisfied or provided for. Showing that the tax has been paid, that it is not due because the estate is under the filing threshold or fully deductible, or that enough of the sale proceeds will go to the IRS or be held for it are the usual ways to meet that test. The application asks for a description of the property, its value, and the details of the proposed sale.

Build time into the closing schedule. Discharge requests are not same-week paperwork. The broader topic of selling property under an IRS lien is a separate subject; for an estate, the point is to start the Form 4422 process as soon as a sale is likely.

Interests the lien does not defeat

The special lien is powerful, but not absolute. IRC 6324(c)(1) provides that the estate and gift tax liens are not valid against a mechanic's lienor, and, subject to the conditions in IRC 6323(b), are not valid against the interests described in that section. Those are the so-called superpriority interests that even a filed general tax lien cannot defeat, such as certain purchasers of securities and local real property tax liens. IRC 6324(c)(2) extends the priority of those interests to related interest and expenses where local law gives them the same priority.

The gift tax lien

IRC 6324(b) creates a parallel lien for gift tax. Unless the gift tax is paid or becomes unenforceable, it is a lien on all gifts made during the period covered by the return, for ten years from the date of the gifts. If the tax is not paid when due, the donee is personally liable up to the value of the gift.

That matters for families who received large gifts from someone who did not pay the gift tax, or did not file. The guide to unfiled and late gift tax returns covers that problem from the donor's side.

The relationship to the general tax lien

The special estate tax lien is not the only lien that can affect an estate. If the decedent owed income tax during life, the general lien under IRC 6321 arose when that tax was assessed and demand was made, and it may already be filed in the county records. The general lien attaches to the decedent's property and survives death.

The two liens are separate. Paying the estate tax does not release an income tax lien, and the reverse is also true. See inheriting property under a federal tax lien for the income tax side.

Deferral and the lien

When an estate elects to pay estate tax in installments under IRC 6166, the payments can extend well past ten years. The IRS addresses that gap with a bond or with a special lien under IRC 6324A, which the executor agrees to on specified property. The 6324A lien can last as long as the deferral.

Practical steps for executors and heirs

1. Figure out early whether the estate owes federal estate tax. With a 2026 basic exclusion amount of $15,000,000, most estates do not.
2. If the estate is taxable, do not distribute or sell property without a plan for the lien.
3. Use Form 4422 when a buyer or lender needs clean title.
4. Recognize that non-probate recipients share the exposure under 6324(a)(2).
5. Keep the closing letter or account transcript showing the tax was resolved. Title examiners ask for it years later.

A lien nobody can see is still a lien. Plan for it before the closing table, not at it.

If an estate tax lien is holding up a sale or a distribution, call (813) 229-7100. Let's talk.