September 1st, 2026 |

• Business Entities

By Attorney Maxx Forti

Reading Time: 3 minutes

Buying or selling a business can be one of the most significant financial transactions an entrepreneur will undertake. In Wisconsin, completing the deal involves more than agreeing on a purchase price. Buyers and sellers must address valuation, financing, taxes, contracts, licenses, employees, due diligence, and the transaction’s legal structure.

Whether an owner is preparing to retire or an entrepreneur is looking to acquire an established operation, careful planning can help prevent costly surprises.

Valuation and Preparation

For sellers, the process typically begins with determining the business’s value. Financial statements, tax returns, cash flow, inventory, equipment, real estate, customer relationships and other assets can all influence value. Sellers should organize several years of financial records and identify outstanding debts, leases, contracts and legal obligations before putting the company on the market.

Buyers should independently evaluate whether the asking price is supported by the company’s financial performance and prospects. An accountant, business valuation professional or other qualified adviser can help establish a reasonable valuation.

What Is Being Purchased

One of the most important decisions is whether the transaction will be structured as an asset purchase or an ownership-interest purchase.

In an asset purchase, the buyer generally purchases specified assets of the company, which may include equipment, inventory, intellectual property, customer lists and other business property. In an ownership-interest transaction, the buyer acquires the seller’s interest in the legal entity itself.
The structure can have significant tax and liability consequences for both parties. The State Bar of Wisconsin identifies asset-versus-entity structure and due diligence involving financials, taxes, employees, insurance, leases, permits, and other business documents as major considerations in an acquisition.

Because the appropriate structure depends on the circumstances, buyers and sellers should involve attorneys and tax professionals before signing a binding agreement.

Due Diligence

Once the parties have agreed in principle on a transaction, the buyer should conduct due diligence. This is the investigation of the business before closing.

Financial due diligence should include reviewing profit-and-loss statements, balance sheets, tax returns, bank records, accounts receivable, accounts payable and outstanding liabilities. Buyers should also examine major customer and supplier contracts, employee agreements, insurance policies, leases, equipment ownership and maintenance records.

Licenses and permits deserve particular attention. A buyer should determine which approvals are required to operate the business and whether those approvals can be transferred or whether the buyer must obtain new ones.

Real estate is another potential issue. If the business leases its location, the buyer should determine whether the lease can be assigned and whether the landlord must approve the transaction. Zoning, environmental, and property-related issues may also need to be investigated.

Negotiate the Purchase Agreement

After due diligence, the parties can finalize the terms of the deal. The purchase agreement should clearly identify what is being sold, the purchase price, payment terms, the closing date, and the treatment of inventory, accounts receivable, debt, and other liabilities.

The agreement should also address representations and warranties, indemnification, noncompete provisions where legally appropriate, employee matters and what happens if undisclosed liabilities are discovered after closing.

For transactions involving financing, the buyer may also need a lender’s approval and documentation establishing how the purchase will be funded.

Wisconsin Tax Requirements

Wisconsin has specific requirements that buyers and sellers should address before closing. The buyer should therefore work with a tax professional to determine the tax treatment of the transaction rather than assuming that every component of a business sale is taxable—or tax-free.

Prepare for Closing

Before the closing date, the parties should confirm that all conditions of the purchase agreement have been satisfied. This may include financing, landlord consent, required governmental approvals, inventory counts, transfer of contracts and delivery of corporate records.

The buyer should establish the appropriate business entity and obtain the necessary tax registrations. Wisconsin’s One Stop Business Portal can help businesses register with multiple state agencies, including the Department of Financial Institutions, the Department of Revenue, and the Department of Workforce Development.

The buyer should also ensure that the necessary licenses, permits, insurance coverage, payroll arrangements, and banking relationships are in place before taking control.

Sellers Post-Sale Responsibilities

Selling a business does not necessarily end the seller’s obligations. If the seller is closing the business, Wisconsin requires final tax filings and closure of applicable tax accounts. The Department of Revenue says a final sales and use tax return generally must be filed within 30 days of the closure date, while final withholding and income or franchise tax obligations must also be addressed.

Importantly, Wisconsin says a seller’s permit is not transferable to the buyer. A seller should surrender the permit and close the applicable sales and use tax account, while the buyer obtains the registrations needed for the new operation.

Conclusion

A successful Wisconsin business transaction requires coordination among the buyer, seller, attorneys, accountants, lenders and other advisers. The biggest mistakes often occur when parties focus exclusively on the purchase price and overlook taxes, liabilities, contracts or regulatory requirements.

For sellers, preparation can make the business easier to value and market. For buyers, comprehensive due diligence can reveal risks before money changes hands. Ultimately, the goal is a transaction in which both parties understand exactly what is being transferred, what obligations remain, and what steps must be completed after closing.

Because laws and individual circumstances vary, buyers and sellers should obtain advice from Wisconsin-licensed legal and tax professionals before completing a business transaction.