Where is the routing number on a business check?

Normally to find the routing number on business checks, look to the bottom left hand corner of the check. The first nine numbers are the Banks Routing Transit Number known as the "RTN". The routing numbers are surrounded by a symbol similar to two colons with a small horizontal line. The checking account number follows the RTN and then the individual check number.

In some cases the order of the checking account number and the check number are reversed.