VA Loan Formula Explained
The math behind the VA Loan Calculator: the equation, the variables, and the assumptions it makes.
By Onias Derilus, Mortgage Capital · NMLS# 1859012 · Last Updated: June 2026
It estimates the monthly payment on a VA loan, including the VA funding fee, for eligible veterans, service members, and surviving spouses.
The Formula
Loan = price − down payment + funding fee; M = amortized payment
The VA funding fee is a one-time charge that varies by down payment and whether it is your first VA loan. It can be rolled into the loan rather than paid in cash, which the calculator reflects.
VA loans charge no private mortgage insurance even with zero down, a major advantage over conventional and FHA loans. The monthly figure is therefore PITI without an insurance add-on for the loan itself.
Turn Your VA Loan Estimate Into a Real Pre-Approval
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Rates are illustrative only. APR and payments vary by credit score, loan amount, and market conditions. Subject to credit approval. Not a commitment to lend. NMLS# 1859012. Equal Housing Lender.