Home Affordability Calculator

Find out how much home you can afford based on your income and debts

1

What is your household income?

Enter your total annual income before taxes (gross income).

$

Include all sources: salary, bonuses, investments, etc.

2

What are your current monthly debts?

Enter minimum monthly payments for existing debts. These reduce how much you can borrow.

$
$
$
$

Child support, alimony, personal loans, etc.

3

What are your loan preferences?

These settings affect how much you can borrow.

%
$

DTI = Debt-to-Income ratio. Lower ratios are easier to qualify for.

4

Estimate your monthly housing costs

These costs reduce how much you can spend on the mortgage itself.

$

per month

$

per month (if applicable)

$

per month

Home Affordability Calculator

Search for "how much house can I afford" and most calculators will give the same answer. Take your income. Multiply it by three or four. There is your budget.

That math is fast. It is also how buyers end up technically approved and practically stretched. A real home affordability calculator should not stop at income and down payment. It should ask what your monthly life already costs.

That is what ficustree's home affordability calculator is built to do. It factors in debts, recurring commitments, PITI, HOA, PMI, and California-specific ownership costs so the number you get back is closer to what you can actually carry.

Quick answer

Home affordability is not the maximum a lender may approve. It is the home price that still fits inside the life you want to keep living. That means enough room for savings, emergencies, basic flexibility, and the rest of your monthly obligations. This home affordability calculator is designed to estimate that more realistic number.

What home affordability really means

A lender's job is to decide whether the loan can be approved. Your job is to decide whether the payment fits your actual life.

Those are not the same question. Qualification is an underwriting answer. Affordability is a planning answer. The gap between the two is where buyers get house poor.

Why most affordability calculators get it wrong

Many calculators ask for only four things: income, down payment, credit score, and ZIP code. Then they return a confident number that looks precise.

What that number often represents is a qualification shortcut, not a real affordability read. It does not know about the car payment, the student loans, the childcare, the tuition, the monthly healthcare spend, or the HOA dues on the condo you are actually considering.

Once those costs are added back in, the realistic number is often materially lower. That is not bad news. It is useful news.

What ficustree's home affordability calculator does differently

The calculator is built around the inputs most generic tools skip.

  • Debt-aware math that includes recurring payments already in your budget
  • Commitment-aware budgeting for obligations a credit report may not fully capture
  • Full PITI framing so taxes and insurance are not treated like afterthoughts
  • HOA and PMI visibility when they apply to the scenario
  • California-specific ownership friction that makes generic estimates less reliable here
  • A realistic price range instead of a headline number with no context
home affordability calculator comparing lender approval with real monthly affordability
Qualification is one number. Affordability is the number that still works in real life.

Why California breaks generic calculators

California affordability is not just about mortgage principal and interest. PITI matters. HOA dues matter. Insurance can matter a lot. In some neighborhoods, Mello-Roos special assessments can materially change the monthly number as well.

That is why a simple income multiplier breaks down so quickly here. A generic calculator may still return a number, but the cost structure around that number is often incomplete.

Why this matters most for first-time and primary-residence buyers

The margin for error is usually smallest for first-time buyers. There is less equity cushion, less familiarity with closing costs, and often more pressure around reserves after the down payment.

That context matters even more in California. The market is expensive, and the difference between "qualifies on paper" and "comfortably works" is not small.

How to use the home affordability calculator

  1. Gather your gross annual income, including any co-borrower income.
  2. List every recurring debt payment, including car loans, student loans, and credit card minimums.
  3. Add recurring commitments that a bare-bones calculator would usually ignore.
  4. Set a realistic down payment that still leaves adequate reserves in place.
  5. Choose the California city or county you are actually targeting.
  6. Review the full output, not just the headline price range.
  7. Run multiple scenarios to compare a stretch number, a comfortable number, and a conservative number.

This part matters: use the number that still feels durable when life gets normal again. If the result only works when everything goes perfectly, it is probably not the right target.

What the result actually tells you

A strong home affordability calculator should not return one ceiling number with no explanation. It should show what sits underneath it.

  • Price range that reflects a more realistic ceiling
  • PITI breakdown so you can see where the monthly money goes
  • Debt-to-income context to show how the payment fits against existing obligations
  • Scenario flexibility so you can compare different down payments and target prices

What this tool does not replace

This tool is for planning. It does not replace pre-approval, lender underwriting, or professional advice.

Use the calculator to set a realistic target. Then use a lender to test what is actually available for your profile. Those two steps work best together.

Helpful next steps

Once you know the price range that fits, the next step is understanding the full payment and ownership picture around it.

You may also want to review:
Mortgage Calculator
Amortization Calculator
True Cost of Homeownership

Trusted resources

For more detail on affordability, debt-to-income, PITI, and California market context, review:
CFPB on debt-to-income ratio
CFPB on PITI
C.A.R. 2026 California Housing Market Forecast
C.A.R. Q1 2026 Housing Affordability Index
NAR on first-time buyer share and buyer age
NAR on 2025 down payment trends

Home affordability calculator FAQ

What does a home affordability calculator include?
A home affordability calculator should include income, debts, recurring commitments, down payment, property taxes, insurance, HOA dues when relevant, and PMI when the down payment is below 20 percent.
Why does ficustree's home affordability calculator give a lower number than some other tools?
Because it is designed around realistic affordability, not just qualification. It includes debts and monthly obligations that many generic calculators leave out.
What is the difference between mortgage qualification and home affordability?
Mortgage qualification is what a lender may approve. Home affordability is what you can actually carry while still saving, absorbing surprises, and living normally.
How much house can I afford on a $100,000 salary in California?
That depends heavily on debts, down payment, taxes, insurance, HOA dues, and location. In practice, the realistic number is often much lower than generic calculators suggest once those costs are included.
What is the 28/36 rule?
It is a common underwriting shortcut that compares housing cost and total debt to gross income. It can be useful as a baseline, but it is not the same as a true budgeting answer.
How much down payment do I need in California?
It depends on the loan. Some conventional options go as low as 3 percent, FHA can go as low as 3.5 percent, and certain VA and USDA programs can allow no down payment. The better question is how much can be put down while still keeping healthy reserves.
Does this calculator include HOA, PMI, and California-specific costs?
Yes. That is one of the main reasons the result is more useful than a simple income multiplier.
Does using the calculator affect my credit score?
No. It is a planning tool and does not pull your credit.
Should I still talk to a lender after using the calculator?
Yes. Use the calculator to define the target. Then use pre-approval and lender review to confirm what is actually available.
Is this financial advice?
No. This tool is for educational planning only. Final decisions should be reviewed with a licensed mortgage professional and, when needed, a financial or tax advisor.