Pick the property type and how you used it. See Yes / Risky / No, with the reason for each point.
mo
days
days
Can it be a 1031?
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General information only, not tax or legal advice. The IRS looks at your intent and the full facts. Ask a CPA and your Qualified Intermediary before you list.
Common mistake: "I rented it a few weekends, so my vacation home is a rental." Not by itself. The IRS safe harbor wants 24 months of ownership, at least 14 days a year at fair rent, and personal use no more than 14 days or 10% of rented days.
Next steps
It qualifies? Run the money side: gain, boot and your 45/180-day dates in T27.
Not sure which kind of 1031 fits (delayed, reverse, DST)? T228.
Used to live there? §121 and §1031 can work together: T224.
Pick a Qualified Intermediary before the sale closes: T226. Then follow the dated checklist: T227.