1031 Exchange Deadlines: Check More Than 180 Days

Start both clocks from the transfer

IRS instructions require identification within 45 days after transferring the relinquished property. Publication 544 requires receipt by the earlier of day 180 or the applicable tax-return due date, including extensions. For transfers of multiple properties in one exchange, the earliest transfer starts the periods.

Our calendar counts the next day as day one. It does not roll a calculated date forward because it falls on a weekend or holiday, and it does not decide whether special relief applies. Ask your intermediary and tax adviser to confirm your specific dates and required delivery method.

Do not assume a filing extension

In the example, a user-entered April 15 return deadline falls before the May 30 outer limit. If an applicable filing extension changes the return deadline, enter that confirmed date and calculate again. The calculator does not file an extension, know your entity’s return type or establish your filing obligations.

Without a return date, the tool labels the receipt deadline provisional. That is deliberate: a displayed 180-day date alone is not enough to plan a year-end transaction.

Keep the calendar with the exchange file

The IRS explains that exchange treatment applies to qualifying business or investment real property; a sale followed by an ordinary purchase is not automatically an exchange. Handling of proceeds and identification requirements matter. Coordinate the structure before transferring the relinquished property.

• Record the actual transfer date and every applicable tax-return deadline.
• Retain the written identification and proof of timely delivery.
• Confirm who may hold and release proceeds before closing.
• Ask separately about reverse exchanges, related parties, disaster relief and any taxable portion.

What this tool leaves out

This is a standard delayed-exchange date planner. It does not calculate deferred gain, replacement basis, boot, depreciation-related tax or state tax. Bring those questions to your tax professional with both closing statements and your basis records.

Sources and method

• IRS — Instructions for Form 8824
• IRS — Publication 544, deferred exchanges
• IRS — Like-kind exchanges: real estate tax tips

Worked examples use the stated hypothetical assumptions. Source links support the general definitions and rules; they do not verify a specific product, offer or individual outcome.