A cash-out refinance replaces your mortgage with a larger one and hands you the difference. See the new payment, the loan-to-value, and the cash you would receive.
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Most lenders cap a cash-out refinance at 80% loan-to-value on a primary home. This shows principal and interest only; closing costs (often 2-5% of the loan) are excluded. Pulling equity resets your loan and can raise total interest.