Your 1031 exchange must be reported by completing Form 8824 and filing it along with your federal income tax return. If you completed more than one exchange, a different form must be completed for each exchange. For line-by-line instructions on how to complete form, download the instructions here.
After completing a 1031 exchange, you must report the transaction to the IRS using Form 8824 to maintain the transaction's tax-deferred status. You must file the form with your annual income tax return for the year in which the exchange was completed.