Petty cash may be outdated, inefficient and subject to abuse, but small businesses have used discretionary funds since the 17th century.
Basically, it should be for minor incidental expenses like taxis, postage and office supplies, and sometimes lunch, most importantly for giving change, and kept in a small locked box or drawer — or even an old-fashioned cash register.
It is the most common imprest accounting system: a fixed amount, of between $50 and $500, depending on the business, that is always available, and restored whenever necessary. Petty cash is an asset, not an income and all transactions should be recorded and listed separately at the beginning of the current assets section of the balance sheet in the accounts ledger.
Although more people use credit and debit cards nowadays, and cash is discouraged more and more often, petty cash is still necessary — and tax deductible.
The initial sum of money comes from the business bank account. You don’t want more than necessary and don’t leave it unsupervised for fear of tempting thieves or even staff, but it’s easy to work out the average you need to hand.
Then it should be regularly counted, especially if it is used for change, and petty cash slips filled out for every sum taken. This documentation is the most important part of the system and the total cash on hand plus reimbursed vouchers should equal the original fund at all times.
A petty cash reconciliation reveals undocumented disbursements as, inevitably, there is always a risk of fraud. Try not to give all employees access to petty cash and never leave it off your books.
If keeping your own accounts, from essential petty cash to balance sheets, inventory and projections, is taking up too much of your valuable time and causing unnecessary anxiety and dismay, perhaps now may be the time to consider handing the whole lot over to a bookkeeping professional so that you can concentrate on the things that really matter to you and actually bring in business.