What is the difference between a Qof and a 1031 exchange?

A Qualified Opportunity Fund (QOF) and a 1031 exchange are both capital-gains deferral tools, but they differ in what you can invest, how much you must reinvest, and where the money goes.

A 1031 exchange defers tax only when investment or business real estate is swapped for other like-kind real estate. You generally must reinvest the full net sale proceeds (and replace any debt with equal or greater debt or cash) to defer the entire gain, you need a qualified intermediary to structure the exchange, and you're bound by strict 45-day identification and 180-day closing windows. The replacement property can sit anywhere in the United States, but it has to be real property.

A QOF works differently. You can defer gain from the sale of almost any capital asset, real estate, stock, a business interest, and reinvest only the gain portion (not the full proceeds) into a Qualified Opportunity Fund within 180 days. No qualified intermediary is required. In return, you receive an LP or equity interest in the fund itself, and the fund must hold at least 90% of its assets in qualifying opportunity zone property. That structural difference matters for valuation purposes: a 1031 exchange centers on the value of the replacement real property, while a QOF valuation values your LP or equity interest in the fund, accounting for minority interest and marketability discounts, fund performance, and the pending December 31, 2026 inclusion event under IRC 1400Z-2.

If you're weighing the two, it's worth understanding what the qualified Opportunity Zones are and how long you must hold a QOF investment before deciding which deferral strategy fits your situation.