How to use this calculator
Enter your gross monthly income at the top of the calculator. This is your total income before taxes and deductions, which serves as the baseline for measuring whether your housing costs fall within a healthy range.
Fill in each expense category with your actual monthly amounts. Start with your mortgage or rent payment, then add property taxes, homeowner's insurance, HOA fees, and PMI if applicable. Continue with utilities such as electric, gas, water, internet, and trash collection. Finally, enter recurring costs like lawn care, pest control, and a monthly maintenance reserve.
The results show your total monthly housing cost and the percentage of your gross income it represents. A healthy target is below 28% to 30% for core housing costs and under 35% when you include all utilities and maintenance. If your percentage is higher, review each category to find areas where you can reduce spending.
The true cost of homeownership
Many first time homeowners focus only on the mortgage payment and are surprised by the total monthly cost. Property taxes, insurance, utilities, and maintenance can add 40% to 60% on top of your principal and interest payment. A $1,500 mortgage can easily become $2,400 or more when all recurring expenses are included.
Building a maintenance reserve is one of the most overlooked aspects of homeownership. Major systems like HVAC units, water heaters, and roofs all have finite lifespans. Setting aside 1% to 2% of your home's value each year ensures you can handle these inevitable repairs without going into debt.
Frequently asked questions
How much should housing cost relative to income?
The standard guideline is 28% to 30% of gross monthly income. Some advisors recommend keeping total housing costs (including all utilities and maintenance) under 35% for financial flexibility.
What maintenance costs should I expect?
Budget 1% to 2% of your home's value per year. For a $350,000 home, that is roughly $290 to $580 per month. Older homes typically cost more.
What are average utility costs?
Typical monthly utilities run $250 to $400 including electric, gas, water, internet, and trash. Costs vary by region, climate, and home size.
What are hidden costs of homeownership?
Maintenance, lawn care, pest control, appliance replacement, property tax increases, and HOA special assessments can add $500 to $1,000+ per month beyond your mortgage payment.