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Mortgage Calculator
Estimate monthly mortgage payments (P&I), plus escrow items (property tax, insurance, HOA), optional PMI, and optional deal-cost estimates (closing costs + agent commission).
1) Loan inputs
Updates as you type
%
years
Tip: Fill price + down + APR + term to get the monthly principal & interest (P&I).
2) Escrow items (monthly)
Taxes, insurance, HOA, etc.
Escrow per month = (annual tax / 12) + (annual insurance / 12) + HOA + other.
3) Agent commission + closing costs
Helps estimate deal cash needs
%
%
Commission is usually paid by the seller, but you can model other scenarios here. Closing costs can be
entered as a percent and/or a flat amount (they add together).
4) Optional: PMI (monthly)
Common if down payment < 20%
%
PMI estimate: PMI(month) ≈ loan × (PMI annual rate / 100) ÷ 12
Payment breakdown
PITI(+)
| Item | Monthly | Notes |
|---|---|---|
| Principal & Interest | — | Fixed-rate amortized estimate |
| Property tax | — | Annual / 12 |
| Insurance | — | Annual / 12 |
| HOA | — | Monthly HOA |
| Other escrow | — | Any other monthly items |
| PMI | — | Estimate (often if down < 20%) |
| Total | — | Total monthly |
Escrow is often collected monthly and paid by your loan servicer when bills are due.
Deal cost estimate
Not part of monthly payment
| Item | Amount | Who pays |
|---|---|---|
| Down payment | — | Buyer |
| Buyer closing costs | — | Buyer |
| Agent commission (total) | — | — |
| Buyer-paid commission | — | Buyer |
| Estimated cash needed | — | Buyer |
Typically, the buyer does not pay the listing/buyer-agent commission directly; this is optional modeling.
Lifetime totals (rough)
Based on current inputs
| Metric | Value | Notes |
|---|---|---|
| Total paid (P&I only) | — | Monthly P&I × number of payments |
| Total interest (estimate) | — | Total P&I − principal |
| Total escrow (estimate) | — | Monthly escrow × term (real life varies) |
| Total PMI (estimate) | — | Simple estimate (PMI often ends earlier) |
This tool does not model extra payments, rate changes, refi, tax/insurance increases, or PMI cancellation timing.
Use it for fast comparisons.
Quick reference tables
Build intuition
| Loan | Rate | Term | P&I (approx) |
|---|---|---|---|
| $400,000 | 6% | 30y | ~$2,398/mo |
| $400,000 | 7% | 30y | ~$2,661/mo |
| $600,000 | 6.5% | 30y | ~$3,792/mo |
| $600,000 | 6.5% | 15y | ~$5,226/mo |
These are rough values. Your actual total payment depends on taxes, insurance, HOA, PMI, and fees.
FAQ
Short answers
What is escrow? Many lenders collect taxes/insurance/HOA monthly and pay the bills when due.
Why is my “total monthly” bigger than P&I? Because it includes escrow items and optional PMI.
Do buyers pay agent commission? Often the seller pays, but deal structures vary—this tool lets you model scenarios.
Is PMI accurate? It’s a simple estimate. Real PMI depends on credit, loan type, and usually cancels when LTV improves.
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