Nationwide Biweekly Administration Inc., a Xenia, Ohio based company, is one of the nation’s largest administrators of weekly and bi-weekly payment programs. Millions of transactions each year are processed through its Interest Minimizer program. The Interest Minimizer program provides customers with an established, automatic, worry-free payment program to help them save tens of thousands of dollars in interest payments on their mortgages, credit cards, equity lines of credit and other interest bearing loans years ahead of schedule.