The 45 and 180 Day Clocks, in Order

The 45 day and 180 day clocks are the two hard deadlines in a 1031 exchange. They both start the moment the relinquished property closes and run concurrently. Missing either by one day kills the entire exchange and triggers the full tax bill. Understanding the sequence of what has to happen inside those clocks helps Rochester commercial owners execute exchanges cleanly rather than scrambling at deadlines.

Day zero is the closing date of the relinquished property. Both clocks start counting from day one, which is the calendar day after closing. If the property closes on September 1, day one is September 2. Day 45 is October 16. Day 180 is February 28 of the following year. These are calendar days including weekends and holidays. The IRS does not extend deadlines for weekends or holidays.

Days 1 through 14 typically. Set up the qualified intermediary if not already engaged before closing. Confirm the QI has received the sale proceeds. Begin identifying potential replacement properties in earnest. Serious sellers actually start this work weeks before closing so day one starts with a shortlist rather than a blank slate. Rochester area sellers who begin identification during the relinquished property escrow period gain 30 to 60 days of effective identification runway.

Days 14 through 30 typically. Tour potential replacement properties. Request offering memoranda and financials from sellers. Run preliminary underwriting on each candidate. Engage a lender for the replacement property financing. Order preliminary title work if warranted. Narrow the list to two or three finalists. This phase is where the actual work of picking replacement property happens, and rushed decisions in week six often produce worse outcomes than deliberate work in week three.

Days 30 through 45 typically. Finalize the identification list. Submit written identification to the qualified intermediary before midnight on day 45. Most sellers use the three property rule identifying up to three potential replacements of any value. Some use the 200 percent rule identifying more properties within the value cap. Written identification must be signed, delivered, and received before the day 45 deadline. Missing the deadline by one minute disqualifies the exchange.

Days 45 through 90 typically. Negotiate purchase agreements on the identified replacement properties. Complete due diligence including physical inspection, environmental if warranted, financial verification, title review, and survey. Coordinate with the lender on appraisal, underwriting, and loan documentation. This phase is normal commercial acquisition due diligence but with 1031 exchange time pressure making the coordination tighter.

Days 90 through 150 typically. Complete lender underwriting. Address any issues that surface during diligence. Negotiate credits or repairs where appropriate. Coordinate with the qualified intermediary on the transaction structure to preserve exchange status. Ensure all documentation reflects the exchange structure rather than a straight purchase.

Days 150 through 180. Close on the replacement property. The qualified intermediary wires funds directly from escrow to the replacement property closing. The seller never touches the cash. Michigan closings happen at attorney offices with both buyer’s and seller’s attorney involvement because Michigan is an attorney close state. The closing paperwork includes exchange specific documentation that would not appear on a straight purchase.

What has to happen by day 180 exactly. Full closing on the replacement property with title transferring to the exchanger. Funds flowing from the qualified intermediary to the seller. Any leftover exchange funds returning to the exchanger as taxable boot. Missing the day 180 deadline by one day disqualifies the entire exchange even if identification was timely.

The tax return filing complication. Federal tax returns for the year of relinquished sale come due April 15 the following year, or October 15 with extension. If day 180 falls after the tax return due date and no extension has been filed, the acquisition deadline moves up to the tax return due date. Sellers whose day 180 falls in late April or later should file for extension automatically to preserve the full 180 day window.

Practical Rochester planning. Rochester area sellers should engage a qualified intermediary before listing the relinquished property, not after. Working with a commercial broker familiar with 1031 exchange timing on both the sale and identification sides saves days on the clocks. Michigan property tax uncapping affects replacement property NOI, and underwriting during days 14 through 30 should use post sale tax estimates.

TDG Commercial, known as best commercial real estate agents in Rochester, manages 1031 exchange timelines for sellers across the region from relinquished listing through replacement closing.