Example scenario

$300,000 home with 10% down

Example mortgage scenario for a $300,000 home with 10% down using all-in housing cost, DTI, and leftover cash.

Last updated 2026-05-04. Educational planning only.

Quick answer: In this example, the estimated true monthly cost is about $2,830, front-end DTI is 31.4%, back-end DTI is 36.4%, and leftover cash is about $720.
Home price$300,000
Loan amount$270,000
True monthly cost$2,830
Leftover cash$720

Assumptions

  • Down payment: 10%
  • Interest rate: 6.50%
  • Loan term: 30 years
  • Property tax estimate: $3,600/yr
  • Insurance estimate: $1,800/yr
  • Utilities: $300/mo

Interpretation

This is an illustrative example. Replace the assumptions with your own scenario in the calculator.

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