📊 Mortgage Payment Calculator · 2026

$600,000 Mortgage
at 8.0% Interest Rate

8.0% is high — crunch the numbers carefully
Monthly payment, 15 vs 30 year comparison, total interest, and what salary you need to qualify.
Monthly P&I Payment · 8.0% · 30-Year · 20% Down
$3,522
Loan amount: $480,000 · Down payment: $120,000
$120,000
Down (20%)
$787,920
Total Interest
$1,267,920
Total Paid (30yr)
$151K+
Salary Needed

15-Year vs 30-Year at 8.0%

30-Year Fixed
$3,522/mo
Total: $1,267,920
Interest: $787,920
15-Year Fixed
$4,587/mo
Total: $825,660
Save: $442,260 in interest

How 8.0% Compares to Other Rates

Data Table
RateMonthly PaymentTotal Interest (30yr)vs 8.0%
5.5%$2,725/mo$501,139$286,781 less
6.0%$2,878/mo$556,023$231,897 less
6.5%$3,034/mo$612,214$175,706 less
7.0%$3,193/mo$669,643$118,277 less
7.5%$3,356/mo$728,243$59,677 less
→ 8.0%$3,522/mo$787,945← You are here

Banker's Take on 8.0%

This rate means you'll pay more in interest than the home is worth. Make sure the buy still makes sense for your situation. At 8.0%, your monthly payment on a $600K home is $3,522. Over 30 years, you'll pay the bank $787,920 in interest alone — 164% of what you borrowed.

To qualify, most lenders want your total monthly debt (including this payment) to stay under 43% of your gross monthly income. That means earning at least $151K/year with no other significant debt.

See Your Full Mortgage Picture
Amortization table, all-in cost, lender comparison
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📉 Why mortgage application volume dropped 56% nationally →
Z
The part almost nobody publishes free

Prices and rates are widely reported. Whether a lender says yes is not. In the complete 2025 federal record, denial rates across the 100 largest FHA lenders ran from 1.8% to 78.7% — same programme, same year.

And it is not simply who applies where: standardizing on state, loan amount, income, debt-to-income and loan-to-value, applicant mix explains only a 2.7× range in expected outcomes.

Which lenders approve most → Your metro → Denied? →

CFPB HMDA 2025, computed by FinanceRateCalc. Covers the highest-volume lenders published per market, not all lenders. Historical observations, not predictions. CC BY 4.0, not independently reproduced.

The Denial Dispatch
One finding a week from the federal mortgage record.
One chart, three paragraphs, every Saturday. Measured, not assumed.
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FinanceRateCalc · Independent analysis of the complete federal HMDA record · Measured, not assumed. · No lender or AI vendor funds or previews this work.