Mortgage Details
20.0% of home price
Additional Monthly Costs
Monthly Payment Breakdown
Loan Summary
Money-Saving Tips
- Increase your down payment to reduce monthly payments and avoid PMI
- Consider a shorter loan term to save on total interest
- Shop around for the best interest rates from multiple lenders
- Improve your credit score before applying for better rates
Calculation methodology: we use the standard amortization formula M = P[r(1+r)^n]/[(1+r)^n-1], where P is principal, r is the monthly interest rate, and n is the number of payments. Escrow items are converted from annual figures to monthly estimates. PMI is calculated as a percentage of the original loan balance unless you override it.
Build scenarios tailored to your purchase plan
First-time buyer
Model FHA and conventional loans side by side, including mortgage insurance premiums and funding fees.
Refinance analysis
Compare your current balance with new rates and closing costs to understand true break-even timing.
Investment property
Adjust vacancy assumptions, taxes, and insurance to evaluate rental cash flow under different down payments.
Understand every line of your payment
Principal and interest
The base loan payment calculated using the standard amortization formula. We show the exact amount applied to principal each month.
Property taxes
Enter an annual estimate or percentage of home value. The calculator spreads this evenly across monthly escrow contributions.
Homeowners insurance
Add your annual premium so the monthly payment reflects your escrow requirements. Adjust as policies renew.
Private mortgage insurance
For down payments under 20 percent, we estimate PMI based on loan type. Toggle it off once you reach 78 percent loan-to-value.
Want to share the breakdown with a co-borrower? Export the results as a PDF summary with one click.
Frequently asked questions
How accurate are the monthly payment estimates?
Principal and interest payments are exact because they rely on the amortization formula. Taxes, insurance, and HOA dues depend on the values you input. We recommend confirming those amounts with your lender or local assessor.
Can I download the amortization schedule?
Yes. After you calculate a scenario, scroll to the results section and export the table as CSV or copy it to the clipboard for spreadsheets.
Does the calculator account for extra principal payments?
Use the optional extra payment field to see how additional monthly or one-time payments change your loan payoff timeline and total interest.
What assumptions are built into PMI estimates?
We use current insurer averages for borrower-paid mortgage insurance on owner-occupied loans. You can override the value if your lender quotes a different premium.
Prepare for lender conversations
Checklist before you apply
- Have your most recent pay stubs and W-2 forms ready.
- Confirm your credit score and review any outstanding debts.
- Gather statements for bank accounts, retirement funds, and investments.
- Estimate property taxes and insurance for the area you are buying in.
Questions to ask your lender
- How long is the rate lock valid and what happens if we need an extension?
- What are the estimated closing costs and prepaid items for this loan?
- Can I remove PMI automatically at 78 percent or do you require a new appraisal?
- Is there a prepayment penalty if I make extra principal payments?