There is no maximum loan amount; however, VA does limit its guaranty.
VA loans have no loan limit any more as of January 1, 2020. If you make a down payment, your lender may loan a larger amount. While not a down payment, the guaranty often satisfies the lenders’ requirement that a portion of the home price be paid for up front (i.e. the down payment). This can save the home buyer the burden of making a down payment.
The loan maximum itself may be up to 100 percent of the VA established reasonable value of the property. In addition, certain funding fees and closing costs apply, and you must be able to pay a portion of these fees up front. Generally, these fees range from 1.4 percent to 3.6 percent of the total loan.