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.
With a pre-approval in hand you can start your shopping-real estate agents and sellers will take you much more seriously when they see you have your mortgage funding in place. It is important to understand, however, that even a pre-approval is not a guarantee that you will be approved for a mortgage loan. The funding will only be given when the property appraisal, title search, and other verifications check out on the home you have chosen to buy.