$450,000 Mortgage Payment

What a $450,000 mortgage actually costs

Put 20% down — $90,000 — on a $450,000 home and you finance $360,000. At 6.55%, the average 30-year fixed rate as of 2026-07-16, that loan carries a principal-and-interest payment of $2,287/mo. Property taxes, homeowners insurance, and any HOA dues come on top; with a typical 1.1% tax rate and $1,800/yr insurance, the full payment lands near $2,850/mo.

Early in the loan, most of that payment is interest. In month one, roughly $1,965 of the $2,287 payment covers interest and only about $322 pays down the balance. The payment never changes on a fixed-rate loan, but the split shifts steadily toward principal — the chart above shows exactly when the crossover happens for this loan.

The term is the biggest lever on total cost. Over 30 years, a $360,000 loan at 6.55% costs about $463,426 in interest. Compress it to 15 years and the payment rises to $3,146/mo, but lifetime interest drops to $206,260 — a saving of $257,166 at this price.

Can you afford it? The common 28% front-end rule says your full housing payment should stay at or under 28% of gross income. At $2,850/mo, that implies a household income of about $122,134 per year for a $450,000 home with 20% down.

The last stretch where FHA works everywhere

A $550,000 home is still comfortably inside FHA’s 3.5%-down path nationwide: put the minimum down and the base loan is $530,750, under the $541,287 floor that FHA’s 2026 limits guarantee in every county in the country. That path stretches to roughly $560,900 before the floor runs out. Above this band, whether FHA is an option at all starts to depend on which county you are buying in.

This is also the range where the mortgage interest deduction starts to earn its reputation. At 20% down and 6.55%, first-year interest plus a 1.1% property tax bill runs roughly $22,100 at $350,000 and $34,700 at $550,000 — crossing the $32,200 married-filing-jointly standard deduction only near the top of the band.

Payment by down payment and term

Principal + interest only, at the current 6.55% average rate — taxes and insurance vary by state, so they're excluded here. Under 20% down, expect PMI on top (the calculator above includes it).

Common questions