Renting vs Buying in California: Compare the Real Monthly Cost
Quick answer
Compare your rent with the total house payment, not just the mortgage. Then look at how much of that payment is principal — that part builds your equity, while rent and interest do not.
Calculate my total house paymentStep 1: Find the true cost of buying
For a $500,000 home with 3.5% down at 6.25% for 30 years: principal & interest $2,971, property tax $521, fire insurance $250, and mortgage insurance $221 — a total house payment of about $3,963 per month.
Add HOA and expected repairs. Many owners set aside money each year for maintenance.
Step 2: See what you keep
In that example about $458 of the first payment goes to principal. That share grows every year, so the longer you stay, the more of your payment you keep as equity.
Step 3: Think about time and costs
Buying has upfront costs (down payment, closing costs) and costs to sell later. Renting is usually more flexible if you might move in a few years.
In California, Proposition 13 limits how fast the assessed value for property tax can rise (generally up to 2% per year), while rent can go up over time.
Common questions
How long should I stay to make buying worth it?
It depends on prices, rates and your costs. Generally, the longer you stay, the more buying makes sense, because upfront costs are spread over more years.
Can an ADU help me afford a home?
An ADU (backyard home) can bring in rental income or house family members. Check local rules and costs first.
Examples are estimates for education only, not financial, tax or legal advice. Your lender's numbers may differ.