PMProperty Math Tools

LOCAL INPUT GUIDE

California Property Calculators

Editable mortgage, closing-cost, property-tax and investment-property tools for California.

Use current local assumptions

California closing practices and charges can vary by county and negotiated allocation. Property-tax estimates can also include local assessments and should be based on current county information.

How to use these calculators

Model insurance, maintenance, association costs and local assessments separately from the mortgage payment. Replace all sample rates before relying on the result.

Home Buying Closing CostsBuild a custom estimate of purchase costs.Property TaxEstimate property tax from assessed value and a local mill or percentage rate.Mortgage PaymentEstimate payments, interest and amortization.Mortgage AffordabilityEstimate a comfortable purchase budget.Rental Property Cash FlowCalculate monthly cash flow and cap rate.

Reviewed 2026-09-08.