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Home Affordability Calculator

Find out how much home you can afford using the 28/36 DTI rule, current rates, and Ventura County property tax.

Calculate How Much Home You Can Afford

Want a precise number?

This calculator gives you a useful estimate. For an exact answer on YOUR property, Brian Cooper does a real comparative market analysis with neighborhood-level comps, condition adjustments, and current Simi Valley market dynamics.

Call (805) 723-2498 or

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This calculator provides estimates only. Actual figures depend on your specific property, loan terms, taxes, insurance, and local conditions. Consult Brian Cooper and your lender for accurate numbers before making any financial decision.

Frequently Asked Questions

What is the 28/36 DTI rule?

The 28/36 rule is a standard underwriting guideline: monthly housing cost (PITI — principal, interest, taxes, insurance) shouldn't exceed 28% of gross monthly income, and total monthly debt payments shouldn't exceed 36%. Some loan programs allow higher ratios (FHA up to 50% in some cases), but 28/36 is a comfortable target.

Why does the calculator show a 'recommended' price below my maximum?

Maxing out your DTI ratio leaves no margin for unexpected expenses, life changes, or interest rate increases on adjustable-rate loans. We recommend buying at 80-85% of your maximum to maintain financial flexibility.

What's NOT included in this calculator?

HOA fees, Mello-Roos special assessments, PMI (if down payment is below 20%), and reserve requirements. Add these to your monthly cost analysis. Your actual lender will factor them into the formal pre-approval.

Brian Cooper, REALTOR® · DRE# 01434286 · eXp Realty