Affordability Calculator

How the Affordability Calculator Works

Enter your household income, your monthly debt payments, the down payment you can make and a current interest rate. The calculator applies the debt-to-income limits lenders use and turns them into a comfortable purchase price and monthly payment. It is the fastest way to know which listings are worth touring.

Lenders look at two ratios: the housing payment as a share of gross income, and all debts including the housing payment as a share of gross income. Car payments, student loans and credit-card minimums all count. Paying down a small balance before you apply can raise the price you qualify for by more than the balance itself.

Courtyard entrance of a Spanish-style home with a lit fountain and arched windows at dusk

What Affordability Looks Like in Phoenix and Scottsdale

The Valley has one of the widest price ranges of any metro in the country. The same budget that buys a condo in Scottsdale buys a newer single-family home in Surprise, Buckeye or Queen Creek, and a larger lot in Apache Junction. Commute, schools and HOA dues are the trade-offs. Our city guides show what each area looks like at different price points.

Stone-and-stucco home at twilight with a swimming pool and covered outdoor living area

Costs Beyond the Monthly Payment

  • Closing costs. Lender fees, the lender’s title policy, half the escrow fee, prepaid interest and the first months of taxes and insurance. Sellers sometimes credit part of these in negotiation.
  • Reserves. Lenders like to see money left after closing, and so should you: a roof, a water heater or an air-conditioning unit does not wait for a convenient month.
  • HOA dues and special assessments. Read the association’s budget and reserves, not just the monthly figure.
  • Pool, cooling and water. Summer electric bills, pool service and irrigation are part of the real monthly cost of a Valley home and vary a great deal between properties.
  • Maintenance. A percentage of the purchase price each year is a common planning figure; older homes and larger lots need more.

Once you have a range, the mortgage calculator shows the payment on a specific price, and a lender’s pre-approval turns the estimate into a budget sellers will take seriously.

Backyard swimming pool with a shaded pergola, palm trees and lounge chairs

Affordability Calculator: Frequently Asked Questions

It depends on your debts, down payment and the interest rate as much as your income. The calculator applies the ratios lenders use; a pre-approval confirms the figure with your actual credit and documents.

Guidelines vary by loan program. Conventional and FHA loans allow higher total ratios than the traditional rule of thumb when credit and reserves are strong, so a lender’s answer may be higher or lower than a generic calculator.

Yes, twice over. A larger down payment lowers the loan and the payment, and reaching twenty percent removes mortgage insurance, which lowers the payment again.

Usually not. Leave room for taxes and insurance increases, HOA changes, maintenance and life. A comfortable payment is one you can carry through a slow year, not just a good one.

Second-home loans require larger down payments and carry slightly higher rates, and lenders count the payment on your primary home in your ratios. If you are shopping for a Flagstaff getaway as well, our sister team at Discover FLAG can help.

No. It is a planning estimate. A written pre-approval from a lender is what sellers expect with an offer, and a Discover PHX agent can recommend lenders who work this market.

Want to know what your budget buys right now? Call 480-771-1872 or send us a message with your price range and areas of interest, and a Discover PHX agent will send matching homes.