Most people check mortgage rates the way they check the weather — a glance at a headline number, a vague sense of whether it’s “good” or “bad,” then they move on. That’s a mistake if you’re actually buying. The rate itself means almost nothing until you translate it into a monthly payment on a real loan amount. So let’s do that math.
The Rate Didn’t Do What Everyone Expected
Here’s the part that surprises people: a year ago, in late October 2025, the 30-year fixed rate was sitting around 6.19% — its lowest point in over a year. As of this month, Freddie Mac’s survey has it back up to 7.28%. Rates didn’t keep drifting down the way a lot of buyers were told to expect. They moved up more than a full percentage point in twelve months.
That reversal matters more than the headline number itself, because it’s reshaping who can afford what, right now, on homes that haven’t moved much in price at all.
The Real Numbers, on a Real Home
Take a $475,000 home — the current median single-family price in the Las Vegas valley — with 20% down, so a $380,000 loan.
At last October’s 6.19% rate, the principal-and-interest payment on that loan runs about $2,325 a month. At today’s 7.28%, that same loan costs about $2,600 a month. That’s a $275-a-month difference on an identical house, identical down payment, identical price — purely from the rate moving. Over the life of a 30-year loan, that rate difference adds up to roughly $99,000 in additional interest paid, for the exact same home.
That’s the number that should actually change how you think about “waiting for rates to come down.” The home didn’t get $99,000 more expensive. The money to borrow did.
What Half a Point Actually Buys You
Buyers often ask how much a modest rate improvement is worth. On that same $380,000 loan, dropping from 7.28% to 6.78% — half a point — brings the payment down from about $2,600 to roughly $2,472. That’s $128 a month, or about $1,536 a year. Useful, but it’s not the difference between affording a home and not affording one for most buyers at this price point. It’s worth knowing precisely so you’re not overestimating — or underestimating — what a rate move in either direction actually does to your budget.
Is Buying Points Worth It?
Buying a mortgage point costs 1% of your loan amount upfront — on this loan, $3,800 — in exchange for a modest rate reduction, often around a quarter point. Dropping from 7.28% to roughly 7.03% on that same loan cuts the payment by about $62 a month. Divide the $3,800 cost by that monthly savings and you get a breakeven of just over five years. If you’re confident you’ll be in the home that long, it can make sense. If there’s a real chance you’ll sell or refinance sooner, the math usually doesn’t favor paying points upfront.
The Takeaway
Rates aren’t a backdrop to the housing market — they’re doing as much work on your monthly budget as the price of the home itself, sometimes more. Before you set a mental ceiling on what you can afford, run your specific loan amount through the actual math rather than reacting to the headline rate. The difference between “I can’t afford anything right now” and “I can afford more than I thought” is often just doing this calculation with your real numbers instead of someone else’s.
If you want to run this math against your actual budget and a specific price range, that’s a five-minute conversation — and it’ll tell you a lot more than watching the rate headlines every week.
