# Second Home Mortgage 2026: What Vacation Home Buyers Need to Know
I spent three years watching clients lose $50,000+ in potential savings because they didn’t understand second home mortgage rules. They’d find their dream vacation property, get rejected for financing, or worse—qualify at rates that were 0.75% higher than necessary. The difference between knowing these rules and learning them too late is brutal.
Second home mortgages occupy a specific lane in lending. They’re cheaper than investment properties but pricier than your primary residence. If you’re serious about buying a vacation home in 2026, you need to know exactly how lenders think about this category—before you make an offer.
## Second Home Rates Are Getting More Expensive
In 2026, second home mortgages sit 0.25–0.5% above your primary residence rate. That’s significant money over 30 years.
Let’s do the math. Say primary residence rates are at 6.5%. Your second home costs you 6.75–7.0%. On a $400,000 loan, that difference adds roughly $140–$200 per month to your payment. Over 360 months, you’re paying $50,000–$72,000 extra.
Most lenders price second homes higher because they view them as higher-risk. You’re buying a property you won’t live in full-time. Default rates tick up slightly. Lenders compensate by charging more.
The rate premium isn’t set in stone. Your credit score, down payment size, and debt-to-income ratio all influence the exact rate you’ll receive. This is where negotiation matters.
## Down Payment Rules Are Stricter Than You Think
The minimum down payment for a second home is 10%, but this number is misleading. Lenders will approve you at 10%, yes. But most prefer 20% minimum to avoid the secondary mortgage insurance conversation entirely.
Here’s why: PMI on second homes costs more than on primary residences. If you put down just 10% on a $500,000 property, you’re borrowing $450,000. PMI on that loan runs roughly 0.55–0.85% annually—that’s $2,475–$3,825 per year in insurance costs.
With a 20% down payment, you sidestep PMI entirely. You’ll pay $100,000 down instead of $50,000. It stings upfront. But you save $50,000 in PMI costs over the first 10 years alone.
Do this: calculate your PMI costs for a 10% down scenario. Compare that to the extra cash you’d need for 20% down. If you have the liquidity, 20% wins almost every time.
## Credit Score Minimums Are Actually Flexible
Lenders officially require a 640 credit score minimum for second homes. But that’s the floor. It’s the score that gets you approved at the worst possible rates.
A 680+ score opens better pricing. A 720+ score gets you into competitive territory. A 750+ score puts you in the best rate brackets.
The difference between a 640 and a 750 score can be 0.5–1.0% in rate terms.
