📊 Mortgage Payment Calculator · 2026

$400,000 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
$2,348
Loan amount: $320,000 · Down payment: $80,000
$80,000
Down (20%)
$525,280
Total Interest
$845,280
Total Paid (30yr)
$101K+
Salary Needed

15-Year vs 30-Year at 8.0%

30-Year Fixed
$2,348/mo
Total: $845,280
Interest: $525,280
15-Year Fixed
$3,058/mo
Total: $550,440
Save: $294,840 in interest

How 8.0% Compares to Other Rates

Data Table
RateMonthly PaymentTotal Interest (30yr)vs 8.0%
5.5%$1,817/mo$334,093$191,187 less
6.0%$1,919/mo$370,682$154,598 less
6.5%$2,023/mo$408,142$117,138 less
7.0%$2,129/mo$446,428$78,852 less
7.5%$2,237/mo$485,495$39,785 less
→ 8.0%$2,348/mo$525,297← 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 $400K home is $2,348. Over 30 years, you'll pay the bank $525,280 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 $101K/year with no other significant debt.

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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.