Selling a Business and the State That Taxes the Gain

The sale of a business is usually the largest single taxable event in an owner's life, and it is the point at which state tax planning either has been done or cannot be. The claims involved are settled by facts fixed before the closing, and very little can be improved afterward.

Who can claim the gain

The seller's residence state. Taxing residents on all income, including gain on intangible assets, which are generally treated as following the owner.

States where the business operated. Which may apportion a share of gain on assets used in the business within their borders.

The state where real property sits. Land is taxed where it is, consistently with the principle in why land follows the state it sits in.

A former residence state, sometimes. Particularly for installment payments and for gain accrued during residency there.

And more than one at once. With relief through the credit mechanism in credit for tax paid to another state, which does not always reach.

Structure drives the answer

Stock sales favor the residence state. The seller disposes of an intangible interest, which is generally sourced where the seller lives.

Asset sales spread the claim. The entity sells its own assets, and gain on those used in a business is more readily apportioned to the states where it operated.

Goodwill is contested. Treated as an intangible following the owner by some states and as a business asset apportionable by others.

Real property is carved out. Its gain is taxed at the situs regardless of how the rest of the transaction is structured.

And pass-through entities complicate it. Income flows to owners with its state character preserved, so an owner can face filings in every state the entity operated in.

The timing question

Residency at the moment of sale matters. For the intangible portion, which is why moves are contemplated before major transactions.

The move has to be genuine. Tested on the factors set out in what a domicile audit examines, and scrutinized more closely where a sale followed shortly.

Well before, not just before. A move completed in the year of a negotiated sale invites an examination that a move completed years earlier does not.

Statutory residency still applies. A seller who moved but kept a home and kept visiting can still be a resident on the arithmetic, as described in statutory residency and how days are counted.

And the old state may assert a claim anyway. On accrued gain, on business apportionment, or on the basis that the move was not effective.

Installments and earn-outs

Payments received after a move are exposed. Some states tax them on the basis that the sale occurred while the seller was a resident.

Earn-outs may be compensation. Where payments depend on continued service, they can be treated as wages sourced to where the work was performed.

Interest is sourced separately. The interest element of an installment obligation follows its own rules.

Federal limits are narrow. The statutory protection against former-resident taxation covers certain retirement income and does not generally reach sale proceeds.

So structure the consideration deliberately. The allocation between price, earn-out, consulting and non-competition payments has state tax consequences that differ from the federal ones.

Preparing properly

Model the state position early. Before the structure is agreed, since the structure drives the answer and is negotiable at that stage only.

Map where the business operated. Property, payroll and sales by state, which are the apportionment factors and are needed regardless.

Settle the residency position first. Cleanly, evidenced, and well ahead of any transaction.

Allocate the purchase price with both systems in mind. Because an allocation optimal federally can be poor at state level.

And plan the filings. Non-resident returns in every state with a claim, prepared in the right order, as set out in part-year and non-resident returns compared.

What makes this area unforgiving is the concentration of value in a single moment. Ordinary multi-state tax questions produce recurring, moderate consequences that can be corrected next year. A business sale produces one number, once, and the state tax on it is settled by circumstances that were fixed before the transaction closed.

The most common regret is timing. An owner who moves after agreeing terms, or in the same year as a closing that had been in negotiation, has taken a position that is difficult to defend and expensive if it fails. The same move made three years earlier, for reasons unconnected with any sale, is generally unassailable. The planning value of an early move is therefore very high and it decays rapidly as the transaction approaches.

The second common regret is structure. Buyers and sellers negotiate stock versus asset structures principally on federal tax and liability grounds, and the state consequences are frequently not modeled at all. Where a business operated across several states, that omission can shift a substantial portion of the gain into apportionment, and the difference is usually larger than whatever was gained elsewhere in the negotiation.

Both are avoidable by doing the state analysis at the same time as the federal one, rather than after it. The information required — where the business operated, where the owner has lived, what the assets are — is already known, and the analysis is a matter of days rather than months. It simply has to be commissioned before the terms are set rather than when the return is being prepared.

There is a third issue that surfaces after closing and is worth anticipating: the filings themselves. A pass-through business that operated in a dozen states can generate non-resident filing obligations for its owners in every one of them, in the year of sale, on amounts that are individually small and collectively significant in preparation cost. Sellers who did not know this is coming find the compliance bill in the year after a sale genuinely surprising, and occasionally larger than the tax it reports.

Composite or withholding arrangements offered by the entity can reduce that burden, since the entity files and pays on behalf of its owners in some states. Whether to participate is a decision with consequences — composite rates are sometimes higher than an individual would pay, and participating can foreclose claiming deductions or credits — so it is worth deciding deliberately rather than accepting the default the accountants propose.

The general lesson from all of this is the one that runs through cross-border tax generally. The states each apply their own rules, none of them coordinates with the others, and the total outcome is the sum of separate claims rather than a single coherent result. An owner selling a business is at the point where that fragmentation costs the most, and also at the point where advance planning has the largest available effect. Doing the work early is not sophistication; it is the only time the work can be done at all.