A checkbook registers provides a comprehensive record of a bank account's debits and credits. The end result is a real-time balance that may be more accurate than an online statement, as some transactions are delayed in processing.
The permanent written record that a checkbook register provides is available at all times. If the power is out or the bank's website is down, it is still possible to access records. It is also easy to track expenses for a budget by comparing the register with categories in a family budget. Finally, knowing who a check was written to without having to download a check or go online is also helpful, according to Three Thrifty Guys.