Entitlement is the slice of your loan the VA promises to cover, and it determines how much you can borrow without a down payment. A borrower with full entitlement faces no VA loan cap at all: the ceiling is whatever a lender will underwrite. Entitlement comes back when a VA loan is paid off and the home sold, and a one-time restoration exists for borrowers who paid off the loan but kept the house.
Reduced entitlement is where limits bite. If part of your entitlement is tied up in an existing VA loan or was lost to a foreclosure, zero-down borrowing is capped by county limits that track the conforming loan limits, which the Federal Housing Finance Agency resets each year and
Fannie Mae publishes. Above that cap, a new loan needs a down payment on the portion your remaining entitlement cannot cover. A VA-experienced lender can compute the exact figure from your Certificate of Eligibility.