Wrong start date on my 180 days cost me the deferral on $76k
Small portfolio, sold a duplex in a rough spot last year, gain about $76k. I'd decided to put it in a QOF and I had one picked out, decent multi-asset fund, $50k minimum, I was going to put the whole $76k in.
Here's what I got wrong, and it's embarrassing because it's arithmetic, not tax law. Closing was in early March. Because of an escrow holdback, the last of the money didn't actually land in my account until the second week of April. I counted my 180 days from when the money arrived. Wired in late September, felt fine about it.
My CPA looked at it in February and told me the clock had run from the closing date, not from when I got paid. I was about three weeks late. So the deferral didn't apply to the gain, and I owed the tax on the $76k for that year, which was roughly $21k federal and state at my rates. The money is still in the fund and still invested, it just doesn't carry the deferral, and whether any part of the position gets other treatment going forward is something my CPA is still working out.
So the cost was $21k arriving in a year I hadn't planned for it, plus my money is now locked in a ten year fund for reasons that no longer include the main one.
What I'd do differently: write the deadline date on the calendar the day the deal closes, get my CPA to confirm that date in writing before I do anything else, and treat the wire date as needing to be two weeks early, not the day of.