A common rule of thumb is to keep several months of living expenses in accessible savings, and that guidance applies with extra force to homeowners. A home carries costs that a rental often does not, such as major system replacements, exterior maintenance, and seasonal upkeep. Buyers who empty their accounts to cover the down payment and closing costs often end up borrowing on a credit card within the first year. A better approach is to set the reserve target before you make an offer, so the purchase price fits the cushion instead of the other way around.

Lenders and loan programs also look at reserves, though the requirements vary widely by loan type and by the borrower's overall file. Some programs ask for documented assets remaining after closing, while others do not set a formal minimum at all. Gift funds, retirement accounts, and large recent deposits can each raise questions during underwriting, so it helps to know what your lender will count before you move money around. Your loan officer can confirm what applies to your specific file. Keeping statements for every account you plan to use makes the final stretch smoother.

For buyers, the practical question is which expenses are coming soon. Moving costs, furniture, window coverings, and a first-month utility setup can add up quickly, and many buyers underestimate their spending in the first year. Older homes sometimes need a water heater, HVAC service, or a roof repair that nobody expected during the inspection. Sellers who are moving up face a different calculation, since their proceeds may fund the next down payment, but they still benefit from a cushion for the gap between selling and buying. In either case, list the known costs first, then add a buffer for the surprises.