We are structuring our exit using an installment sale under Section 453 to defer our capital gains taxes, but we are terrified the buyer will default on the payments after we walk away. How do we structure the security agreements and default covenants to protect our position without IRS penalties?

Question

Tyler Smith · Accepted Answer

To protect your position in a Section 453 installment sale, you must secure the promissory note with the very assets you are selling. This requires a first-priority security interest in the corporate assets, stock, or membership interests, backed by a personal guarantee from the buyer. You must also write specific operational and financial covenants into the purchase agreement. If the buyer fails to maintain certain debt service coverage ratios or tries to strip cash out of the company, it triggers an immediate default, allowing you to reclaim the business or accelerate the note.

Additionally, ensure your security agreement allows you to step back into an advisory or management role immediately upon default. This is where your operational prep pays off. During the transition period, make sure the leadership team is fully trained and aligned using the V/TO to avoid operational decay post-close. If they default, you want a functional business back, not a hollow shell. Keep the Accountability Chart clear so the successor knows exactly how to keep the operations running smoothly. By protecting yourself with strong covenants and a robust, self-sustaining operating system, you minimize the risk of default and preserve your tax benefits.