For an address to be valid, it must match a corresponding address in the official USPS address database. If an address contains any incorrect data, it will not match a corresponding address in that database, and is therefore not autocompleted.

Sometimes, an address will not validate because the address is marked as "vacant" by the USPS. Additionally, a new address, an unregistered address, or one located within a postal code primarily serviced by PO boxes, would all fail to validate. The best way to be sure an address is valid is to verify the address here at this link.

The "Pro" level feature "Street Address Autocomplete" allows a user to start typing a street address and it will now autocomplete, standardizing client addresses based on United States Postal Service standards. Increase speed and accuracy of client data; standardize addresses within your database, assure addresses are valid, and eliminate common data entry errors.

​