Your real house payment is more than principal and interest. This calculator breaks out the full monthly cost — taxes, insurance, and PMI included — plus the total interest you’ll pay over the life of the loan. Below it, a refinance break-even check: how many months until a refi actually pays off.
Total monthly payment
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Principal & interest
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Taxes
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Insurance
$0
PMI
$0
Total interest over loan
$0
Refinance break-even check
Break-even point
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Estimates only. Taxes and insurance vary by location and change over time; PMI drops off once you reach about 20% equity on a conventional loan. The break-even math compares principal & interest only and ignores the new loan’s reset clock — refinancing restarts your term, which can cost more interest overall even with a lower payment. Educational content only — not individualized financial, tax, or investment advice.