10Doors Calculators Rental Property Mortgage Calculator

Rental Property Mortgage Calculator

Investment-property loans price differently than a primary residence — higher rates, bigger down payments. Enter the deal below for your monthly principal & interest, loan size, and lifetime interest.

Monthly P&I payment
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Loan amount
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Total interest (life of loan)
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The formula

Payment = L × r(1+r)ⁿ ÷ ((1+r)ⁿ − 1), where L is the loan amount, r the monthly rate, and n the number of payments. This covers principal and interest only — taxes, insurance, and any PMI are extra.

How rental loans differ

Investment-property mortgages typically run 0.5–1% higher than owner-occupied rates and commonly want 15–25% down. Lenders may count only ~75% of projected rent toward qualifying income. Once you have a payment, drop it into our cash flow calculator to see whether the deal works.

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Frequently asked questions

How much down for a rental property?

Typically 15–25% for a conventional investment loan — more than a primary residence. DSCR loans (which qualify on the property’s income, not yours) often want 20–25%.

Are rates higher for investment properties?

Yes — usually 0.5–1% above comparable owner-occupied rates, because rental default risk is priced higher.

Does this include taxes and insurance?

No — this is principal & interest only. Add taxes and insurance (plus reserves) in the cash flow calculator for the full picture.

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This template is provided for general informational purposes and does not constitute legal advice. Landlord-tenant law changes and local ordinances may impose additional requirements — verify current state and local rules before serving any notice. Last reviewed September 2026.