You sell residential rental property how long do you have to reinvest the gain to avoid capital gain tax?

To avoid capital gains tax on the sale of residential rental property, you can utilize a 1031 exchange, which allows you to defer taxes by reinvesting the proceeds into a similar property. You must identify a replacement property within 45 days of the sale and complete the purchase within 180 days. If you do not follow these timelines, the capital gains tax will apply to the sale.