Mortgage calculator
What will it actually cost per month?
Estimate your payment with taxes and insurance included — then see how that number moves across a range of interest rates.
Estimated monthly payment
$4,724
- Principal & interest
- $3,792
- Property tax
- $781
- Insurance
- $150
- Loan amount
- $600,000
- Down payment
- $150,000
Of your first payment, $3,250 goes to interest and $542 reduces the balance. That ratio flips slowly — it is why the rate matters more than almost anything else.
Rate sensitivity
The same house, at different rates
Rate is the one number you don't control. Here's what it does to this payment — each bar splits your first month into interest, principal, and taxes plus insurance.
$4,338
5.5%
$4,433
5.75%
$4,529
6%
$4,626
6.25%
$4,724
6.5%
$4,823
6.75%
$4,923
7%
$5,024
7.25%
$5,127
7.5%
$5,230
7.75%
$5,334
8%
$5,439
8.25%
- First-month interest
- First-month principal
- Taxes & insurance
About these numbers
This is an estimate for planning, not a loan offer, quote, or commitment to lend. Trevor William Lawrence is a REALTOR® with Rise Real Estate — not a mortgage lender or loan originator. Your actual rate and payment depend on credit, down payment, loan program, property type, and lender pricing on the day you lock, and only a licensed lender can quote them.
It also leaves out costs that are real and can be significant: mortgage insurance (typically required under 20% down), HOA dues, Mello-Roos and other special assessments — common in newer Santa Clarita Valley communities and sometimes several hundred dollars a month — plus closing costs and any supplemental tax bill after a sale.
The default rate shown is approximate. Enter the rate your lender quoted for a realistic estimate.
Want the version with your actual numbers in it? I'll introduce you to a local lender who'll price it properly — no obligation, and I don't take a referral fee for it.
Read the buyer's guide