According to the official website of the product, the home edition can print only standard wallet checkbook checks with dimensions of 6 x 2.75. However, the Business edition can print on custom sizes up to 8.5" x 3.5". The full features list can be find on the site mentioned above. Before you purchase the software, it's advised to try the trial edition. By doing this, you are able to test the software's compatibility with your printer. The check printing process is different depending on the printer that you use.