Affordability Calculator | HomeMortgage.com

Affordability Calculator

The Affordability Calculator was created for those who want to buy a new home but are unsure as to what exactly your budget will allow. A comprehensive tool that takes into account your entire family's income and debt situation, this calculator can help you decide whether you'll be able to purchase and sustain payments on a particular house.

It's important to not overextend one's reach and accrue debt levels that cannot be afforded; therefore, the standard rule of thumb for purchasing a home mortgage is that your housing expenses should not exceed 28% of your monthly income. Additionally, once you have combined that with your total outstanding monthly debts, the total should not exceed 36%, or problems could arise.

Using the Affordability Calculator

The Affordability Calculator factors in many variables when determining what is within your family's financial means, including your total monthly income, the amount of debt you owe (and the respective interest payments involved), how much of a down payment can be afforded, and other factors, such as taxes and PMI costs (which can potentially be avoided through an 80/15 home mortgage payment plan). HomeMortgage.com offers these mortgage calculators and more to help you make the best home buying and refinancing decisions for you and your family, so you can feel at home with your loan.


Input Information
Loan Information
Down Payment :
Interest Rate : (%)
Length : (Yrs)
Estimated Front Ratio : (%)
Estimated Back Ratio : (%)
Income Information Debt Payment Information
Income 1 : ($) Auto Loans : ($)
Income 2 : ($) Student Loans : ($)
Income 3 : ($) Installment : ($)
Income 4 : ($) Revolving accts : ($)
Income 5 : ($) Other Debt : ($)
Taxes And Insurance Information
Annual Taxes :
Annual Insurance :
Annual PMI :
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Name :
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Financial Analysis (Switch to Plain English)
Monthly Principal & Interests : $1,540.80
Monthly Real Estate Taxes : $250.00
Monthly Insurance : $125.00
Monthly PMI : $119.59
Total Monthly Payments : $2,035.39
Monthly Income : $8,000.00
Monthly Debt Payments : $910.00
Actual Front Ratio : 25 %
Actual Back Ratio : 37 %
Amount : $287,000.00
Down Payment : $31,800.00
Home Value : $318,800.00
Plain English Help (Switch to Financial Analysis)

Before you start looking for a new home, you need to have an idea of how much you can afford to pay for a home. To find this out, you will need to take a closer look at your total monthly household income as well as the debts and regular monthly payments you are already making. In addition, you will need to consider how much money you can put in down payment, the loan interest rate, and the length of the loan. You will also need to have an idea of how much the taxes will be, as well as the insurance and PMI costs.

Estimated front and back ratios helps you to limit your housing and necessary living spending. Front ratio is a percentage of your gross income that you can spend on all housing related expenses, including property taxes and insurance. Back ratio is a percentage of your gross income that you can spend on your housing expenses plus cost of shelter: food, clothes, gas, etc.

Front / back ratios with values of 28-33 / 36-42 considered conservative these days, values bigger than 35 / 45 called aggressive and not recommended for use.

Using all of this information, you can determine how much you might afford to pay for your mortgage. If you are interested in making a $31,800.00 down payment and hope to get a 30 year loan with a 5.000% interest rate, you can afford to purchase a home that costs $318,800.00 if your gross household monthly income is $8,000.00 and your total monthly payments on your other bills is no more than $910.00.

If you purchase a home under these conditions, you can expect to pay $2,035.39 per month toward your mortgage. $1,540.80 of this will be toward the actual loan, while $250.00 will be toward taxes and $125.00 will be toward insurance.



DISCLAIMER: There is NO WARRANTY, expressed or implied, for the accuracy of this information or it's applicability to your financial situation. Please consult your own financial advisor.