While a principal residence and a second home have some similar benefits, they have some major differences. A principal residence is the primary home where you live and a second home is used for personal enjoyment while limiting possible rental activity to a maximum of 14 days per year.
The Mortgage Interest Deduction allows a taxpayer to deduct the qualified interest and property taxes on a principal residence and a second home. The interest is limited to a maximum of $1,000,000 combined acquisition debt and a combined $100,000 home equity debt for both the first and second homes.
The gain on a principal residence has a significant exclusion for taxpayers meeting the requirements. The gains on second homes must be recognized when sold. Even if you sell a smaller second home and invest all of the proceeds into a larger second home, you'll need to pay tax on the gain.
Tax-deferred exchanges are not allowed for properties having personal use including second homes.
If the home is owned for more than 12 months, the gain is taxed at the long-term capital gains rate. If the home is owned for less than 12 months, the gain is taxed as ordinary income which would be a considerably higher rate.
The article is intended for informational purposes. Advice from a tax professional for your specific situation should be obtained prior to making a decision that can have tax implications.