There is also a three-digit code number assigned to each currency, in the same manner as there is also a three-digit code number assigned to each country as part of ISO 3166. This numeric code is usually the same as the ISO 3166-1 numeric code.
This calculator uses these guidelines for determining how much house you can afford, which are similar to common underwriting criteria that mortgage lenders use. 1  Your total mortgage payment should be no more than 28 percent of your gross monthly income.
How Much Money Can I Afford to Borrow? Most future homeowners can afford to mortgage a property even if it costs between 2 and 2.5 times the gross of their income. Under this particular formula, a person that is earning $200,000 each year can afford a mortgage up to $500,000.