An investment must be made within 180 days of the sale creating the capital gain. In the event that the sale is from a passthrough entity such as an S Corp or LLC, the investment must be made within 180 days of the end of the passthrough entities taxable year. If there is a section 1250 gain recapture, the 1250 component of the gain is 180 days from the end of the taxable year. No identification is required. No accommodator is required.