Question 1

What is the monthly mortgage payment at 4.5% on a $400,000 home?

Accepted Answer

At a 4.5% fixed rate with 20% down, the monthly principal and interest on a $400,000 home is $1,621. Total interest over 30 years: $263,701.

Question 2

How does a 4.5% mortgage rate compare to other rates?

Accepted Answer

On a $400,000 home with 20% down, each 1% increase in rate adds roughly $196/month to the P&I payment. At 3.5%, the monthly payment drops to $1,437.

Down Payment	Loan Amount	Monthly P&I	Total Interest
5% ($20,000)	$380,000	$1,925	$313,146
10% ($40,000)	$360,000	$1,824	$296,664
20% ($80,000)	$320,000	$1,621	$263,701
25% ($100,000)	$300,000	$1,520	$247,220
30% ($120,000)	$280,000	$1,419	$230,739

Term	Rate	Monthly P&I	Total Interest
30-Year Fixed	4.5%	$1,621	$263,701
15-Year Fixed	4.1%	$2,390	$110,113

Mortgage Payment at 4.5% on a $400,000 Home

30-Year Fixed at 4.5%