Mortgage calculators that show their work
Test a payment and see the formula, assumptions and limitations. Results appear on screen without requiring contact information.
Estimated principal & interest
- Loan amount
- $400,000
- Total interest
- $510,178
- Total P&I payments
- $910,178
Excludes taxes, insurance, mortgage insurance, dues and closing costs.
Same seller dollars. A smarter offer.
Compare a lower purchase price with using the same seller dollars to permanently buy down the mortgage rate.
How this comparison works
Both scenarios use the selected fixed loan term, the same down-payment method and the entered costs. The price reduction lowers the purchase price. The buydown keeps the original price and applies seller credit first to permanent discount points, then to other modeled eligible closing costs.
Payments use monthly amortization with unrounded calculations. The model does not include appreciation, investment returns, tax deductions, maintenance, selling or refinancing expenses, escrow deposits or prepaid interest. Seller-concession limits, appraisal support, mortgage insurance and rate pricing require lender review.
This compares permanent discount points, not temporary 2-1 or 1-0 buydowns. Results are educational estimates, not an APR, approval, commitment to lend or Loan Estimate.
More strategy tools
Methodology
Each calculator shows its assumptions and produces an educational planning estimate. Results are not a quote, approval, commitment to lend or Loan Estimate.
Your situation deserves more than a generic answer.
Talk through the numbers, timing and tradeoffs with Matt before you commit.