MortgageAffordabilityTools

Income Required Calculator

Work backwards from a target home price to the income a lender would need to see at your debt-to-income limit.

Last reviewed

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Free · No sign-up · Runs in your browser

Affordability calculators start from income and produce a price. This one runs the other way: you have a price in mind, and the question is what income a lender would need to see to approve it.

That framing is more useful when a specific property is in view, or when planning around a future income change. It also makes the cost of existing debts unmistakable, because they raise the required income directly.

Your numbers

Results update as you type. Nothing is sent anywhere.

Result

Annual income required

$110,303

Monthly income required

$9,192

Housing payment
$2,909
Principal and interest
$2,338
Property tax
$413
Insurance
$158
HOA dues
$0
Loan amount
$390,000
Total monthly debt
$3,309
Deposit percentage
13.33%

This is the income at which total monthly debt reaches the debt-to-income limit you entered. Lenders also assess credit history, reserves, employment stability and the property itself.

Existing monthly debts raise the income required dollar for dollar at the limit. Clearing a car payment frequently moves the required income more than a rate change does.

How to use the income required calculator

  1. Enter the home price you are targeting and the deposit available.
  2. Enter the rate and term you expect to be offered.
  3. Add the property tax rate, insurance, HOA dues and existing monthly debts.
  4. Set the debt-to-income limit and read the income required.

What people use this for

  • Checking whether a specific property is realistically within reach.
  • Planning a purchase around an expected income change.
  • Quantifying how much an existing debt raises the income bar.
  • Setting a savings and debt-clearing plan toward a target price.

Worked examples

Every figure below is produced by running this calculator against the example inputs, so the numbers always match the tool.

A $450,000 target

$450,000 with $60,000 down at 6% over 30 years, 1.1% tax, $1,900 insurance, $400 of existing debts, 36% limit.

Annual income required
$110,303
Housing payment
$2,909
Total monthly debt
$3,309

The same target with no existing debts

Identical figures with monthly debts cleared.

Annual income required
$96,969
Monthly income required
$8,081

Debts raise the bar dollar for dollar

At a 36% limit, every dollar of existing monthly debt requires roughly $2.78 of additional gross monthly income to offset. A $400 car payment therefore raises the income requirement by around $13,000 a year.

Comparing the two examples above makes the point better than any explanation: the same house, the same deposit, the same rate, and a materially different income requirement purely because of a car loan.

The rate moves the requirement too

A one-point rate change alters the principal and interest payment substantially, and the income requirement moves with it. That is worth modelling before assuming a target price is fixed - a rate move can put it back in or out of reach without anything else changing.

It also cuts the other way. If rates fall after a purchase, the same house becomes affordable on a lower income, which is the mechanism behind most refinancing.

Methodology and assumptions

What this calculator does, and what it deliberately does not do.

  • The housing payment is principal and interest plus property tax, insurance and HOA. Total debt adds existing monthly payments.
  • The income required is the total debt divided by the debt-to-income limit.
  • Property tax is estimated from the rate applied to the purchase price rather than to an assessed value.
  • Results are estimates. Real quotes depend on credit, income, property, loan programme and lender pricing at the time of application.
  • Nothing you type is transmitted or stored - the calculation runs entirely inside your browser.

This calculator is provided for informational and educational purposes only. Results are estimates and may not reflect actual rates, fees, taxes, or market conditions.

This website is not a lender, a mortgage broker or a financial adviser. It does not originate loans, does not accept applications and does not forward your details to anyone.

Actual loan terms depend on credit history, income, the property, the loan programme and lender pricing at the time of application. Only a lender can tell you what you qualify for.

Frequently asked questions

Is this the income a lender will require?

It is the income at which total debt reaches the limit you entered. Lenders also assess credit, employment, reserves and the property, and their limits differ by programme.

Should I use household income?

Use whatever income will be on the application. If two incomes are being used, combine them.

Does bonus or variable income count?

Frequently, though lenders usually require a documented history and may average it. Rules differ by programme.

What if my income is below the requirement?

The levers are a larger deposit, a lower price, clearing existing debts, a longer term, or a co-borrower. Clearing debts is usually the fastest.

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