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Calcimator

Housing Cost Ratio Calculator

Calculate all-in housing costs as a percentage of income and see whether you meet the 30% rule for affordable housing.

Inputs

$
$
$
$
$
$
$
$

Results

Total Housing Cost

$2,450.00

≈ 19 pairs of sneakers

Housing-to-Income Ratio

40.8%

Within 30% Rule?No
Monthly Overage$650.00
Annual Housing Cost$29,400.00
Recommended Max Housing$1,800.00
How to Use This Calculator
  1. Enter your gross monthly income and your rent or mortgage payment.
  2. Add property tax, homeowners/renters insurance, utilities, and HOA dues.
  3. Include a monthly maintenance budget (typically 1% of home value per year, divided by 12).
  4. Review Housing Ratio against the 30% rule — exceeding it signals housing cost risk.
  5. Use Recommended Max Housing and Monthly Overage to see how much you need to reduce costs or grow income.

How the result changes with Rent or Mortgage

Rent or MortgageTotal Housing CostHousing-to-Income Ratio
$1,000.00$1,650.0027.5%
$3,500.00$4,150.0069.2%
$6,500.00$7,150.00119.2%
$9,000.00$9,650.00160.8%

What each input means

Gross Monthly Income
Total monthly income before taxes.
Rent or Mortgage
Monthly rent or mortgage payment.
Property Tax (monthly)
Monthly property tax (annual / 12).
Homeowners Insurance
Monthly homeowners insurance premium.
Utilities
Electric, gas, water, sewer, trash.
Maintenance / Repairs
Average monthly home maintenance costs.
HOA Fees
Monthly homeowners association fees.
Renters Insurance
Monthly renters insurance premium (if renting).

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Gross Monthly Income = 6000, Rent or Mortgage = 1800, Property Tax (monthly) = 250, Homeowners Insurance = 100 = 8 input(s) provided
  2. Calculate Total Housing Cost
    Total Housing Cost
    2450 = $2,450
  3. Calculate Housing-to-Income Ratio
    Housing-to-Income Ratio
    40.8 = 40.8%
  4. Calculate Within 30% Rule?
    Within 30% Rule?
    No = No
  5. Calculate Monthly Overage
    Monthly Overage
    650 = $650

Engine last updated . Checked against 1 independently-derived test — how we verify calculators.

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