[ec109685]

Only one home is deductible: “ The interest you pay on a mortgage on a home other than your main or second home may be deductible if the proceeds of the loan were used for business, investment, or other deductible purposes. Otherwise, it is considered personal interest and isn't deductible. Main home. You can have only one main home at any one time.”

[eigen]

> Only one home is deductible

> "other than your main or second home"

2 homes are deductible.

[vaidhy]

No.. only one home.. but you get to choose which of your homes you can deduct.

[zerocrates]

You're wrong: the deduction covers your "main home" plus a "second home" of your choice. Both are combined under the same $750,000 limit.

[ec109685]

Can you cite the statute?

“ Mortgage interest. Many U.S. homeowners can deduct what they paid in mortgage interest when they file their taxes each year. (The rule is that you can deduct a home mortgage's interest on the first $750,000 of debt, or $375,000 if you're married and filing separately.”

[zerocrates]

The mortgage interest deduction is "qualified residence interest" in the statute. 26 USC §163(h)(3) allows deduction of interest "with respect to any qualified residence of the taxpayer."

"Qualified residence" is itself defined at 26 USC §163(h)(4)(A)(i) as the taxpayer's "principal residence" and "1 other residence of the taxpayer."

[maxerickson]

It's not a statute, but this IRS guidance clearly discusses deducting the combined interest.

https://www.irs.gov/publications/p936