If we structure our exit as an installment sale under Section 453 and the buyer goes bankrupt in year three, what happens to our deferred tax liability and how do we protect our family from paying tax on money we never received?

Question

Tyler Smith · Accepted Answer

An installment sale under Section 453 is an excellent tax-deferral tool, but it carries real risk if the buyer defaults. If the buyer goes bankrupt, you face a double blow: you lose your remaining purchase price, and you must navigate complex tax rules regarding the unpaid installment note.

Under IRS rules, if an installment obligation becomes unenforceable or is canceled, it is treated as a disposition. This can trigger an immediate tax liability on the unrecognized gain, meaning you could owe taxes on money you will never collect.

To protect your family, you must structure the transaction with robust security instruments and clear default remedies. First, require a seller-friendly repossession clause. If the buyer defaults, you should have the right to repossess the stock or assets of the business. If you successfully repossess the property, Section 1038 of the tax code provides relief, allowing you to avoid recognizing immediate gain on the repossession, except to the extent of cash already received.

Second, require the buyer to hold a personal guarantee or secure the note with external, non-business collateral like real estate or personal investment accounts. Run a Thinking Time session specifically on this worst-case scenario. Ask yourself how you can secure enough up-front cash or liquid collateral to cover any potential tax liabilities if the buyer fails. Never accept an unsecured installment note; protect your family by ensuring you are a secured creditor from day one.