Tennessee's lake and mountain markets, from the Smokies to Percy Priest and Center Hill, mean a lot of owners are sitting on a second home that was never a full-time residence. Capital gains tax on second home sales works differently than a primary residence, and it also works differently depending on how much the property was actually rented out versus used personally.
Why a Second Home Does Not Get the Home Sale Exclusion
The federal exclusion for a primary residence, up to $250,000 for a single filer and up to $500,000 for a married couple, only applies to a home that meets the ownership and use test as a main residence. A cabin, condo, or lake house used a few weeks a year does not meet that test, so its full gain is generally taxable as a capital gain, calculated the same way as any other appreciated asset: sale price minus adjusted basis, adjusted for selling costs and qualifying improvements.
Personal Use Versus Rental Use Changes the Category
A vacation property rented out for more than 14 days a year and used personally for less than 14 days, or 10% of the rental days, starts to look like investment property under the tax code rather than a personal-use asset. That distinction matters a great deal for exchange eligibility. A cabin used almost exclusively by the owner's family, with only occasional rental income, is treated as personal-use property and does not qualify for 1031 treatment, no matter how much it has appreciated.
The Safe Harbor for Vacation Rentals
The IRS has published a safe harbor for treating a vacation home as qualifying like-kind property, generally requiring the owner to have held it for at least 24 months before the exchange, rented it at fair market rates for at least 14 days in each of those two years, and limited personal use to the greater of 14 days or 10% of the days it was rented. Meeting this safe harbor gives an owner a much clearer path to exchanging a Tennessee vacation property than trying to argue investment intent without a documented rental history.
No Tennessee State Tax, but Federal Rates Still Apply
Tennessee's lack of a state income tax means a second home sale here avoids the state capital gains bill that would apply in many other states, but the federal long-term capital gains rate, up to 20% depending on income, plus depreciation recapture on any portion of the property that was rented and depreciated, still applies in full. Owners relocating a vacation property purchase to Tennessee sometimes underestimate the federal exposure because the state layer is missing.
Deciding Whether to Sell, Exchange, or Convert
Owners of a Tennessee second home approaching a sale generally have three paths worth comparing:
- sell outright and pay the full federal capital gains tax on the gain
- build a documented rental history to meet the exchange safe harbor before selling
- convert the property to a primary residence for a period of time before selling, which has its own separate rules and does not fully restore the home sale exclusion for a formerly rental-heavy property
Each path has a different timeline, and the safe harbor route in particular requires planning well before a sale is on the table, not after an offer is already in hand.
Common 1031 Exchange Questions
Does a Tennessee vacation home qualify for the primary residence exclusion?
Generally no, unless it meets the ownership and use test as the owner's main home for at least two of the five years before the sale, which most true second homes do not.
Can a lake house or cabin be used in a 1031 exchange?
Yes, if it meets the IRS safe harbor for vacation property, generally requiring at least 24 months of ownership with documented fair-market rental use and limited personal use.
How much personal use is allowed under the vacation home exchange safe harbor?
Personal use generally cannot exceed the greater of 14 days per year or 10% of the days the property was rented at fair market value, in each of the two 12-month periods before the exchange.
Does Tennessee tax capital gains on a second home differently than a primary residence?
Tennessee itself does not tax either at the state level, but at the federal level a second home loses access to the primary residence exclusion that a main home can use.
What happens if a second home was rented occasionally but mostly used personally?
Occasional rental with mostly personal use generally keeps the property in the personal-use category, which disqualifies it from 1031 exchange treatment and does not create meaningful depreciation deductions.
