THE NUMORIX GUIDE
How to use the VA Mortgage Calculator
Last reviewed September 14, 2026
What this calculator does
The calculator subtracts the down-payment percentage from home price, applies the selected funding-fee percentage to the base loan, and finances the fee by adding it to principal.
Formula and method
The calculator subtracts the down-payment percentage from home price, applies the selected funding-fee percentage to the base loan, and finances the fee by adding it to principal. It then computes the fixed-rate principal-and-interest payment and adds annual property tax, insurance, and HOA divided by 12.
Variables and inputs
Enter home price, down payment percent, interest rate, loan term of 15 or 30 years, funding-fee choice, annual property tax, annual insurance, and annual HOA. Dollar fields are dollars; down payment, funding fee, and interest rate are percentages.
Worked example
For a $400,000 home with 0% down and a 2.15% funding fee, base loan is $400,000 and fee is 400,000 x 0.0215 = $8,600. Total financed loan is $408,600. At 6% for 30 years, principal and interest is about $2,449 per month; adding $4,000 / 12 = $333.33 tax and $1,600 / 12 = $133.33 insurance gives about $2,916 per month before HOA.
How to interpret the result
The result separates base loan, funding fee, total financed loan, principal and interest, and recurring housing costs. A funding-fee exemption or a different down payment can materially change the financed amount. The estimate does not establish VA eligibility or entitlement.
Common mistakes to avoid
Use the funding-fee option that matches the borrower and transaction, rather than assuming the default applies to every VA borrower. Enter annual costs as annual values because the engine divides them by 12. Do not treat the VA benefit as a guarantee of a zero-cost loan.
Assumptions and limitations
Funding fees depend on current VA rules, use, down payment, and exemption status; this route only applies the selected percentage. It excludes lender fees, discount points, closing costs, residual income, taxes beyond entered amounts, and eligibility review.