How it works
This tool estimates the monthly principal-and-interest obligation for a VA-backed home loan when the borrower puts zero money down and finances the VA funding fee into the mortgage balance. Two structural features set veterans loans apart from conventional financing: the entitlement removes the down payment hurdle, and the federal guarantee replaces private mortgage insurance. The trade-off is that upfront funding fee, which most service members and veterans roll into the financed amount rather than paying in cash at closing.
| Feature | Conventional Mortgage | VA-Backed Mortgage |
|---|---|---|
| Minimum down payment | Typically 5–20% | $0 with full entitlement |
| Monthly PMI | Required under 20% equity | Not charged |
| Upfront funding fee | None | Yes, varies by usage |
| Lender protection | Private insurer | Federal guarantee |
Because this calculator isolates the core amortizing payment, it does not include escrow line items like property taxes, homeowners insurance, or HOA dues — those vary by location and property, so add them separately when building your total housing budget.
The formula
M = P × [r(1 + r)^n] / [(1 + r)^n − 1]
Here P is the financed mortgage balance after the funding fee is rolled in, r is the monthly rate (annual percentage divided by 12), and n is the total number of monthly payments across the full amortization term.
Worked example
Consider a $300,000 home purchase using the veterans loan benefit with $0 down and a 30-year fixed rate of 6.25%. The VA funding fee is 2.15%, which gets financed into the balance rather than paid out of pocket.
First, determine the funding fee dollar amount based on the base purchase amount.
Funding fee: $300,000 × 0.0215 = $6,450
Next, add that fee to the purchase amount to arrive at the total mortgage balance being amortized.
Financed balance: $300,000 + $6,450 = $306,450
Convert the annual percentage to the monthly rate and count the total scheduled payments for a 30-year term.
Monthly rate: 0.0625 ÷ 12 = 0.00520833
Total payments: 30 × 12 = 360
Now apply the amortization formula to the financed balance.
M = 306,450 × [0.00520833(1.00520833)^360] ÷ [(1.00520833)^360 − 1]
M ≈ 306,450 × 0.006157 ≈ $1,886.76
Over the full 30 years, the combined payments add up to:
Total paid: $1,886.76 × 360 ≈ $679,234
Subtracting the financed balance from that figure reveals the interest cost over the life of the note:
Interest cost: $679,234 − $306,450 ≈ $372,784
Things to watch
The funding fee percentage shifts depending on your situation. First-time use of the entitlement with zero down currently sits at 2.15% for regular military, but subsequent use rises to 3.3%. Putting 5% or more down reduces the percentage further. Borrowers receiving disability compensation for a service-connected condition are generally exempt from the funding fee entirely — if that applies to you, set the funding fee input to 0% for an accurate estimate.
Note that the rate you are quoted depends on individual credit factors and lender pricing; this estimate is a planning tool, not a commitment or professional financial advice. Confirm current funding fee tiers and entitlement details with a VA-approved lender or your Certificate of Eligibility before contracting on a property.