The words 'second home' and 'investment property' are often used interchangeably, but they're fundamentally different in the eyes of lenders and the IRS. Getting the distinction right affects your mortgage rate, your qualifying criteria, and your tax strategy.
How Lenders Classify Properties
| Factor | Second Home | Investment Property |
|---|---|---|
| Min. down payment | 10% | 15–25% |
| Rate premium | +0.5% to +0.75% | +0.75% to +1.5% |
| Rental income counting | No | 75% of market rents can count |
| Personal use requirement | Yes — must use some of the time | No personal use required |
| HOA restrictions | Can't be primarily rental | Rental communities OK |
IRS Classification
The IRS uses the 14-day / 10% rule to determine if a property is a second home or investment property for any given year. This classification can change from year to year based on how you use the property.
Tax Differences
| Tax Item | Second Home (Personal) | Investment Property |
|---|---|---|
| Mortgage interest | Deductible (with caps) | Fully deductible as expense |
| Property taxes | Deductible (SALT cap) | Fully deductible |
| Depreciation | Not available | Deductible over 27.5 years |
| Operating expenses | Personal — not deductible | Deductible |
| Losses | No offset against income | May offset passive income |
| Capital gains exclusion | No ($0/$0) | No ($0/$0) |
Strategic Flexibility
You can sometimes shift between classifications by adjusting your personal use vs. rental use patterns. This requires careful planning — and good records of all days used.