Establish a schedule for reconciling the petty cash fund. In businesses with frequent petty cash transactions, weekly reviews may be the most effective. If your small business does not make a lot of petty cash purchases, it may be sufficient for you to review the fund once a month. The amount of cash in the box, added to the total of the receipts, should always equal your standard starting amount. As an example, assume your base amount is $300 and $134 was disbursed for miscellaneous expenses. There should be $166 in cash remaining in the cash box, along with $134 worth of receipts. If there are consistent discrepancies, you might opt to further limit who has access to petty cash. Identify one or two key people who can access petty cash and who are responsible for documenting every disbursement or purchase.