Closing is when the purchase agreement is signed, the money moves and the business becomes yours. Most of what can go wrong at closing is decided earlier — in the structure of the deal, and in what you checked in diligence. This guide covers the decisions that land at the end, and the first months after.
Before closing
Choose an asset purchase or a stock purchase
- When
- In the letter of intent, confirmed in the purchase agreement
- Who decides
- You, the seller and your attorney
In an asset purchase you buy the business's assets — equipment, inventory, customer lists, goodwill — and leave the company itself with the seller. In a stock purchase you buy the company, with its history. Which is better depends on the tax result for each side and on how much of the company's past you're willing to inherit; that's a conversation for your attorney and accountant.
From IRS — Instructions for Form SS-4 (Rev. December 2025), readIf you buy an existing business, the IRS says not to use the former owner's EIN — unless you became the owner of a corporation by acquiring its stock.
Agree how the price is allocated
- When
- In the purchase agreement
- Who decides
- You, the seller and your accountants
From IRS — Instructions for Form 8594, Asset Acquisition Statement, readWhen a group of assets that makes up a business changes hands, both the buyer and the seller generally file Form 8594 with their income tax returns, reporting how the price is allocated across the assets.
The allocation affects both sides' taxes, often in opposite directions, so agree it in the purchase agreement rather than leaving each side to report its own.
Clear the seller's sales tax
- When
- Before the money moves
- Who decides
- The state tax agency
States handle a seller's unpaid sales tax differently. Two official examples:
From California Department of Tax and Fee Administration — Sales and Use Tax Law, section 6811, readIn California, the buyer must withhold enough of the purchase price to cover the seller's unpaid sales and use tax until the seller produces a receipt or a certificate showing that no amount is due.
From California Department of Tax and Fee Administration — Sales and Use Tax Law, section 6812, readA California buyer who doesn't withhold becomes personally liable for that tax, to the extent of the purchase price.
From New York State Department of Taxation and Finance — Bulk sales (TB-ST-70), readIn New York, the buyer must notify the Tax Department of a pending bulk sale, on Form AU-196.10, at least 10 days before paying for or taking possession of any business assets.
Ask your attorney, or the tax agency in the state where the business operates, what applies to yours.
Line up the licenses and permits
- When
- Before closing
- Who decides
- The licensing agencies
From SBA — Plan your business: buy an existing business or franchise, readYou'll need any licenses and permits the business requires — from the current owner, or by applying for them yourself.
Online business only
Move the domain and accounts
- When
- At closing
- Who decides
- The seller, and each platform
From ICANN — Transfer Policy, readAfter a change of registrant, the registrar must lock the domain against transfer to another registrar for 60 days — unless the registrant opted out before the change was requested.
Each platform — payment processor, marketplace, ad network — has its own rules for changing an account's owner, and some don't allow it at all. Check each one's terms before closing, not after.
Closing day
Sign, fund and take the keys
- When
- The closing date in the purchase agreement
- Who decides
- Your attorney or the escrow agent
The purchase agreement is signed, the lender and you fund, the seller's liens are paid off and released, and the assets — or the shares — move to you. Before you sign, get the list of what is being paid out of the purchase price and to whom, and check it against what you agreed.
Your first months as owner
Keep the employees, properly
- When
- From the day you close
- Who decides
- You
From USCIS — I-9 Central: Mergers and acquisitions, readWhen you acquire a business, you can treat its employees as new hires and complete new Forms I-9, or as continuing in employment and keep the previous owner's forms — in which case you accept responsibility for any errors or omissions in them.
Meet everyone before you change anything. The people who run the business day to day are deciding, in your first weeks, whether to stay.
SBA loan only
Use the seller's handover
- When
- During the transition period
- Who decides
- You and the seller
From SBA — SOP 50 10 8.1, Lender and Development Company Loan Programs (effective Oct 1, 2026), readWith an SBA loan for the whole business, the seller can work for it only as a consultant, for no more than 24 months in total, including any extensions.
Write down what the seller knows that you don't — suppliers' quirks, customers' habits, the things that break — while they're still there to ask.
Watch the customers, the suppliers and the cash
- When
- Every week, at first
- Who decides
- You
Call the largest customers and the most important suppliers yourself. Track cash weekly, not monthly. The first months are when a buyer finds out which of the seller's habits kept the business running, and the cash account shows it before anything else does.
This guide is general information about closing a business purchase in the U.S., not legal, tax or financial advice. Each rule above links to the official page it came from and the date we read it.