We are using an installment sale under Section 453 to defer our capital gains taxes over five years, but we want to make sure the buyer's post-closing restructuring does not trigger an accidental acceleration of our deferred tax liability. How do we structure the transaction documents to insulate us from this risk?

Question

Tyler Smith · Accepted Answer

An installment sale under Section 453 is an excellent tool to defer your tax liability, but it comes with structural risks. If the buyer reorganizes the company post-closing, merges it into another entity, or defaults and forces a foreclosure, you risk triggering an accidental disposition of the installment obligation. Under IRS rules, a disposition of an installment note immediately accelerates all deferred capital gains taxes.

To insulate yourself, you must write strict protective covenants into the stock purchase agreement and the promissory note itself. The note must explicitly state that any merger, consolidation, sale of substantially all assets, or transfer of the note by the buyer constitutes a default that triggers immediate payment of the principal with an added tax gross-up penalty.

You also need to restrict the buyer from making distributions to their parent company or affiliates if those distributions compromise the debt service ratio of the operating company.

Before closing, allocate dedicated Thinking Time to model these scenarios with your tax advisor. You must ensure that the note is secured by a first-priority lien on the assets of the operating company and a pledge of one hundred percent of the stock.

If the buyer defaults and you have to take the company back, the repossession itself can trigger a tax event under Section 1038, so your security agreement must be drafted to minimize the taxable gain on repossession. Never allow the buyer to restructure the debt or change the obligor entity without your prior written consent.