We want to use a Section 453 installment sale to defer our capital gains tax over five years, but we are terrified the buyer will default or mismanage the company before the note is fully paid. How do we secure the note without triggering constructive receipt?

Question

Tyler Smith · Accepted Answer

Using a Section 453 installment sale is an excellent way to defer your capital gains tax, but it exposes you to the risk of buyer default. To mitigate this risk without triggering constructive receipt, you must structure your security instruments very carefully. If you take a direct security interest in the assets of the business, it does not trigger taxes, but it can be difficult to enforce if the buyer files for bankruptcy. A better approach is to secure the installment note with a third-party guarantee or a standby letter of credit from a reputable bank. The critical tax rule under Section 453 is that the security instrument must not be funded or cash-collateralized in a way that allows you to draw on the cash unilaterally without a default event. If the buyer places cash in an escrow account that you can access at will, the IRS will deem this as constructive receipt and tax the entire amount immediately. Work with your legal team to ensure the letter of credit is strictly conditional, meaning it only pays out upon a documented default by the buyer. This keeps your tax deferral intact while giving you a reliable bank guarantee.