How to Close a Business With the IRS: 7 Filings That Finish the Federal Account

The IRS does not recognize a closing until the paperwork proves one. A business can stop trading, surrender its lease and dissolve under state law, and the federal account attached to its employer identification number will go on expecting quarterly returns, generating notices for filings nobody intends to make, until seven documents arrive in roughly the right order.

The order matters more than owners assume. Some filings are triggered by a board vote, some by the last paycheck, some by the end of the calendar year, and the final one, the letter asking the IRS to close the account, will be refused while anything earlier is missing or unpaid.

1. Form 966 Answers the Board Vote, and It Runs on a 30-Day Clock

A corporation files Form 966, Corporate Dissolution or Liquidation, when it "adopts a resolution or plan to dissolve the corporation or liquidate any of its stock." The deadline is statutory. Section 6043(a) of the Internal Revenue Code requires the return "within 30 days after the adoption" of the resolution or plan, and the form's instructions repeat the 30 days and add that an amended plan calls for another Form 966 within 30 days of the amendment.

This is the first federal filing in time, and the one owners most often miss, because it is triggered by a vote rather than by a tax year. Qualified subchapter S subsidiaries and exempt organizations do not file it. Partnerships and sole proprietors have no equivalent.

2. The Final Form 941 Names the Person Who Keeps the Payroll Records

Thirty days after the board votes, the payroll may still be running. The final quarterly return belongs to the quarter in which the last wages are paid, not the quarter in which the business decided to close.

On that return, according to the IRS page on closing a business, the employer checks the box telling the IRS the business has closed and enters the date final wages were paid, on line 17 of Form 941 or line 14 of Form 944 (line numbers as the page gave them in September 2026; forms are revised). It also attaches a statement giving the name of the person keeping the payroll records and the address where they will be kept.

That statement is a small thing. It is also the answer to the question the IRS will ask two years later, when an employee disputes a W-2 and the office has been let to a dentist.

3. Form 940 Is Marked Final in a Box Labeled "d"

The federal unemployment return covers the calendar year in which final wages were paid. The IRS instructs the employer to check box "d" in the Type of Return section to show that the form is final.

Nothing else about it changes.

4. W-2s Go to Employees, and Copy A Travels With a W-3

Each employee receives a Form W-2 for the calendar year of final wages, and the IRS asks that they be furnished by the due date of the final Form 941 or 944, a date that can arrive sooner than the one employers usually carry in their heads. Copies B, C and 2 go to the employee. Copy A goes to the Social Security Administration under cover of Form W-3, the transmittal.

A restaurant or salon with tipped staff has one more document, Form 8027, reporting final tip income and allocated tips.

The early deadline is the trap. An owner who assumes the W-2s can wait for the usual season has, in a closing year, assumed wrong, and the employees (who are, by then, former employees, with new applications to complete and no one at the old number to call about a missing form) will be the first to notice.

5. Contractor Payments Close Out on Form 1099-NEC

Payments to independent contractors during the closing year are reported on Form 1099-NEC, and paper copies go to the IRS with Form 1096 as the transmittal; some filers must file electronically. The reporting threshold has been the subject of recent legislative change, so confirm the current figure with the preparer rather than relying on an older rule of thumb.

6. The Final Income Tax Return Depends on What the Business Was

A sole proprietor files Schedule C with the individual return for the closing year, and Schedule SE if net earnings from the business reach $400 or more (the figure on the IRS page as of its July 2026 review). A partnership files Form 1065, checks the "final return" box near the top of the first page, and checks the "final K-1" box on each partner's Schedule K-1. A C corporation files Form 1120 with the "final return" box checked. An S corporation files Form 1120-S, checks the same box, checks "final K-1" on the shareholder schedules, and, under the 2025 instructions, "must generally file by the 15th day of the 3rd month after the date it dissolved."

Each of these returns may carry attachments the closing itself produces: Form 4797 for business property sold or exchanged, and Form 8594 if the business is sold as a going concern. An LLC files whichever return its federal classification requires, which is to say, if we are being careful, that the LLC label tells the IRS nothing by itself; the election or default classification does.

These returns end the income tax story. They do not end the account.

7. The EIN Letter Is the Last Filing, and It Waits for the Balance

The account closes by letter. It goes to the Internal Revenue Service, Cincinnati, OH 45999, and gives the complete legal name of the business, the EIN, the business address and the reason for closing; if the business still has the notice the IRS sent when it assigned the EIN, a copy goes in the same envelope.

The IRS attaches one condition, and states it without ornament: "We cannot close your business account until you have filed all necessary returns and paid all taxes owed." The letter, in other words, is the last item on the list because it depends on every item above it.

A closing letter sent over an unpaid balance does not close the account. It adds a piece of correspondence to the file.

Where there is a balance, the question becomes how it will be paid. The IRS payment-plan page tells business taxpayers to call the number on the notice or 800-829-4933, or to visit a Taxpayer Assistance Center, and says sole proprietors apply as individuals. Larger requests may call for Form 433-B, the Collection Information Statement for Businesses. The Internal Revenue Manual adds a line every closing corporation or LLC should read before calling: trust fund recovery penalties "must be considered and, if appropriate, assessed in connection with consideration of installment agreements for any out-of-business corporation or out-of-business LLC." A payment plan request from a closed company invites the IRS to ask who was responsible for the withheld payroll taxes.

The penalty under 26 U.S.C. 6672 reaches a person, not the company, and only one who was responsible and acted willfully. It outlasts the letter to Cincinnati, and it outlasts the company.

Private Debt Is Not on This List

None of the seven filings addresses what the business owes to lenders, landlords or merchant cash advance funders. Delancey Street, a business debt settlement company that is not a law firm, reviews those balances in a free, confidential consultation and works with independently licensed counsel when legal questions come up. It does not negotiate with the IRS; tax balances and any trust fund penalty belong with a CPA, an enrolled agent or a tax attorney.

A federal account is a record kept by someone else. The seven filings are how an owner writes the last page of it.