Cash to close is the full sum you must provide at your home’s settlement to complete the purchase. It goes beyond basic closing fees and includes your down payment, lender charges, escrow deposits for taxes and insurance, prepaid items (like interest and homeowner’s insurance), and any reserve requirements. To estimate it, total your down payment, add loan origination fees, title and escrow costs, prorated taxes, insurance premiums, and any HOA or reserve contributions. On closing day, most lenders require a certified check or wire transfer for the exact amount, so confirm payment instructions with your settlement agent in advance.