HUD substantially increases FHA county loan limits for 2018. FHA loan limits determine how much home you can buy with an FHA loan. posted by: What's My Payment? Related CalculatorsFHA Loan Limits by State and CountyFHA Mortgage CalculatorFHA loan limits have increased to $294,515 in most counties nationwide. Higher loan limits are available in counties where home prices are inflated.Being able to borrow more money with the blessing of FHA allows home buyers to expand the quality of home for which they are shopping.See if you qualify for an FHA loan. Next: What's My Payment?