Definition
The interest rate is the annual cost of borrowing money, expressed as a percentage of the loan balance. For a seller, prevailing mortgage rates matter indirectly but significantly: when rates climb, financed buyers can afford smaller loans, overall demand cools, and homes tend to sit on the market longer. Cash purchases sidestep this entirely, since there's no loan involved and therefore no rate to worry about. Rates move based on broader economic factors like inflation and Federal Reserve policy, which are entirely outside any individual seller's control. Watching the general direction of rates can still help a seller set realistic expectations for how much demand and competition their listing is likely to see.
Example
When rates jumped two percentage points in Hannah's area, the monthly payment on a typical $300,000 loan rose by several hundred dollars almost overnight. That priced out a meaningful chunk of the buyer pool for her listing, and her home sat unsold for months longer than she and her agent had originally expected. She eventually explored a cash sale instead to sidestep the shrinking financed-buyer market altogether, since a cash purchase doesn't depend on mortgage rates at all. Her cash buyer sent a written offer within two days, and there was no financing contingency for Hannah to worry about falling through later. Because the whole transaction skipped the mortgage market entirely, Hannah was able to close within a couple of weeks rather than continuing to wait for the right financed buyer to come along. She ended up relieved she hadn't kept gambling on rates dropping back down.