How Much Money Should I Spend on A House Calculator

Buying a home is one of the biggest financial decisions you'll make. Our calculator helps you determine how much you should spend based on your income, savings, and financial goals. Learn how to budget for a house purchase and avoid common mistakes.

How to Use This Calculator

To use this calculator, follow these steps:

Enter your monthly income after taxes.
Select your desired down payment percentage (typically 3-20%).
Enter your current savings for a down payment.
Select your mortgage term (15, 20, or 30 years).
Enter your desired interest rate (current average is around 6-7%).
Click Calculate to see your recommended home price.

This calculator uses the 28/36 rule, which recommends that your housing expenses (including mortgage, taxes, and insurance) should not exceed 28% of your gross monthly income, and your total debt payments (including housing) should not exceed 36% of your gross monthly income.

Formula Used

The calculator uses the following formula to determine your recommended home price:

Recommended Home Price = (Monthly Income × 28% × Mortgage Term × 12) / (1 - (1 + Interest Rate/12)^(-Mortgage Term × 12)) + Down Payment

Where:

Monthly Income - Your gross monthly income after taxes
28% - The recommended maximum housing expense ratio
Mortgage Term - The length of your mortgage in years
Interest Rate - The annual interest rate on your mortgage
Down Payment - Your current savings for a down payment

Worked Example

Let's say you have a monthly income of $5,000, want to put down 10%, have $10,000 saved, and plan a 30-year mortgage at 6%.

Calculate your maximum monthly mortgage payment: $5,000 × 28% = $1,400
Calculate the loan amount using the mortgage formula: $1,400 × [(1 + 0.06/12)^(30×12) - 1] / (0.06/12) = $280,000
Add your down payment: $280,000 + $10,000 = $290,000

Based on these numbers, the calculator would recommend you spend up to $290,000 on a house.

Frequently Asked Questions

What is the 28/36 rule?: The 28/36 rule is a guideline that recommends your housing expenses (including mortgage, taxes, and insurance) should not exceed 28% of your gross monthly income, and your total debt payments (including housing) should not exceed 36% of your gross monthly income.
How much should I put down on a house?: Aim for at least 3-20% down payment, as this can reduce your mortgage amount and interest costs. A 20% down payment typically eliminates private mortgage insurance (PMI).
What factors should I consider besides price?: Consider location, neighborhood safety, school districts, commute times, property taxes, home insurance, and future resale value. Also factor in closing costs, moving expenses, and potential home improvements.
How do I calculate my monthly mortgage payment?: Use the mortgage payment formula: P = L × [r(1 + r)^n] / [(1 + r)^n - 1], where P is the monthly payment, L is the loan amount, r is the monthly interest rate, and n is the number of payments.
What if I can't afford the recommended price?: Consider saving more for a down payment, looking for a lower interest rate, or choosing a shorter mortgage term. You may also need to adjust your budget by reducing other expenses or increasing your income.