What is a cash-out refinance?
A cash-out refinance replaces your current mortgage with a new, larger one. The new loan pays off your old balance, and you take the difference, the equity you've built, as cash at closing. If your home is worth $400,000 and you owe $240,000, you have $160,000 of equity on paper; a cash-out lets you borrow against part of that, up to your loan type's limit, and walk away with cash.
The important word is borrow. This isn't free money or money you're "getting back," it's a new, larger loan secured by your home, with its own closing costs and, usually, a reset term. Used for the right purpose, a real home improvement, a high-interest debt you've run the math on, it can be a sound move. Used casually, it can quietly cost more over the life of the loan than it saves today. The rest of this page is about telling those apart.
How much can you cash out?
How much equity you can take is capped by your loan type's maximum LTV, your loan balance as a percentage of your home's value. Conventional and FHA cash-out generally reach up to 80% LTV on a one-unit primary residence, which means you keep at least 20% equity in the home. VA cash-out can go higher, but the VA funding fee applies unless you're exempt. Jumbo cash-out LTV is set by the investor and varies. USDA has no cash-out refinance.
Those caps and their full mechanics are covered on each loan guide, so I read the figure and route you there rather than repeat the rules here. The table below shows the shape of it, with the conventional and FHA caps read from the loan guides and VA, jumbo, and USDA routed to their pages.