Things You Will Need
A calculator and/or a computer are recommended but not necessary
A paper check register or software program
Review the register for the time period in question and look for a service charge, a check, or a deposit that may not have been entered.
If the difference can be divided by 2, you probably added or subtracted an entry that is the reverse of what it should be.
If the difference can be divided by 9, it is probably transposed numbers on an entry.
Knowing how much money you have at any given time and where your money is important in any economy but especially so today. If you are having trouble finding an mistake, use the "tricks" above to help identify the error.
Tips & Warnings
Get duplicate checks so that if you forget to log a check or other transaction into the register, there will be a copy. It helps to enter items at the time of a purchase or other transaction instead of waiting until a later time and possible forgetting.
In addition to the embarrassment of returned items, the fees associated with returns can add up to an amount greater than the original check or their entire account balance. The fees are wasted money that could be saved or used to purchase something wanted. Also, if there are too many overdrafts over a period of time, the bank can close the account. The bank may also report the account closing to credit reporting and or check processing companies. This could have a negative effect on your credit rating for some time.
Microsoft Money and Intuit's Quicken are excellent software packages for keeping track of your money. Also, some banks offer on-line balancing.