A petty cash fund is a small amount of cash on hand, usually less than $500, used to cover incidentals or nominal expenses. Since accounting for petty cash only involves minor expenses, it can either be done manually or made easier with bookkeeping software.
In addition to the manual method, I’ll show you how to use QuickBooks Online, our top pick from the best small business accounting software guide, to simplify petty cash accounting.
If you’re familiar with petty cash and need some help understanding how to record the journal entries, here are the most common petty cash journal entries in the bookkeeping process.
Journal entry to establish the petty cash fund
Journal entry to record the monthly expenses paid from petty cash
Journal entry to replenish the petty cash fund
Alternative Journal Entry
Many bookkeepers prefer to combine the second and third journal entries above if the cash is replenished at the same time as expenses are recorded, which is generally the best practice. By combining the journal entries, Petty Cash isn’t adjusted, and the expenses are recorded coming directly from the checking account.
A petty cash fund speeds up reimbursements and is an important best practice in cash management. It enables your employees to perform quick errands without using personal money. You have to craft a clear petty cash policy as it sets out the purpose and use of the petty cash fund.
List allowable expenses
With a petty cash fund in place, you can pay for small expenses like postage stamps, office supplies, office food and drinks, fuel expenses, parking tickets, and other unpredictable expenses. Any expense that’s too small to write a check for can be paid with cash from the petty cash fund, and a maximum dollar amount should be set for allowable expenses.
Delegate a petty cash custodian
The petty cash custodian is the person accountable for the petty cash fund. They’ll be in charge of handling and disbursing petty cash and ensuring that the petty cash fund is used for its intended purpose. They’re also responsible for the safekeeping of the physical cash and possess the key to the lockbox where the cash and receipts are kept.
The petty cash custodian also must ensure that there is a petty cash voucher for every expense paid from the petty cash fund. Visit what is a petty cash voucher for more information and an example of a completed voucher.
In your petty cash policy document, include the name and signature of the custodian so that there’s an official transfer of accountability for the petty cash.
Set the maximum fund & reimbursement threshold
Most companies maintain a petty cash fund balance of anywhere from $100 to $500, but the amount will depend on your petty cash needs. To illustrate further, assume that we have a fund balance of $500. Our policy states that petty cash reimbursements shouldn’t exceed 10% of the fund balance. This means that expenses above $50 cannot be charged to petty cash. However, we can also specify that certain expenses are always chargeable to petty cash, even if they’re above $50.
The petty cash custodian will keep all cash and receipts inside a lockbox. Only the custodian can access the lockbox — it mustn’t be left open and unattended.
Let’s look at a sample: To set up the petty cash fund for $500 in the books initially, you or the bookkeeper needs to make the following journal entry:
A petty cash fund is a current asset account that should appear on your balance alongside other cash accounts, such as checking and savings accounts. After recording the journal entry, the custodian should receive $500 from the owner or cashier.
To reimburse expenses, require a receipt from the employee in exchange for the cash paid. Store the receipt in the lockbox. Then, record the expense in the petty cash log by entering the date, payee, description, reference number, and amount.
Here’s an example of a petty cash log, followed by the fields you need to complete:
- Date: Indicate the date when reimbursement was made.
- Payee: Write the name of the employee who asked for reimbursement.
- Description/Purpose: Explain the expense briefly; for example, you can write, “Fuel expense for delivery trucks” or “Postage stamp cost.”
- Reference number: Enter the official receipt number. If there’s none, you may leave it blank.
- Amount: Indicate the amount reimbursed.
The bottom portion of the petty cash log won’t be completed until the cash in the lockbox is replenished. There’s no need to make journal entries when expenses are reimbursed from cash in the lockbox. Learn more about the petty cash log.
Petty cash must be reconciled when the cash is replenished. However, the petty cash custodian may perform weekly or daily reconciliation to keep track of the fund balance. Using a cash count sheet can be used to document the cash count, but it’s optional.
Every time you take cash out of the box, you replace the cash with a receipt for the same amount. Therefore, all receipts plus remaining cash must be equal to the original amount placed in petty cash. To learn more, read our step-by-step instructions for reconciling petty cash.
Every month, or as cash is needed, the custodian should summarize the petty cash log by expense account and record a journal entry debiting each expense and crediting petty cash.
Enter the petty cash fund balance as the beginning balance. Then, get the total of the Amount column to determine total petty cash expenses. That’s also the amount you’ll ask for as reimbursement. The ending balance is the difference between the beginning balance and the total petty cash expenses. The cash inside the lockbox should be equal to the ending balance.
After the owner or bookkeeper records all expenses in the books, cash must be taken from the checking account to replenish the petty cash box. Record the transfer of cash by debiting Petty Cash and crediting Checking Account.
Petty cash accounting example
Let’s assume the following information from the petty cash transactions of Paul’s Plumbing:
- January 1: The petty cash fund is set to $500 with Heather Smith as the custodian.
- January 3: The custodian reimbursed Deborah Wood $41 for fuel expenses. The receipt number is 22312.
- January 9: Richard Roe paid $49 for the fuel of the delivery truck. Heather Smith refunded the amount to him in exchange for the receipt with number 23330.
- January 14: Rafal Bolinski purchased postage stamps for $38.
- January 16: Heather Smith purchased office supplies from Office Depot. She took $187 out of the lockbox. The receipt number is 3397452.
In the petty cash policy document, we should state that the petty cash fund is $500 with Heather Smith as the custodian. She should also sign the document to transfer the petty cash fund accountability to her.
After Heather Smith signs the document, the cashier will release $500 to her. The bookkeeper should also make an entry to transfer cash to the Petty Cash account:
Heather Smith should always ask for receipts before reimbursing any amount to employees. After refunding the money to them, she should update the petty cash log, as presented below:
Heather Smith should reconcile the petty cash account before asking for replenishment. First, she should update the petty cash log and count the remaining cash inside the lockbox. She should then fill out a cash count sheet to document the cash count. Assuming that we only have $185 on hand, the cash count sheet should look like this:
The remaining $185 on hand is what’s left of the $500 petty cash fund after reimbursements.
Since Heather is running out of cash, she may ask for replenishment. Before going to the cashier (or owner), she should first complete the bottom of the petty cash log.
In our example above, we asked for $315 as replenishment because it’s the amount of total receipts. Hence, the sum of all receipts plus the ending balance should be equal to the petty cash of $500.
At the time the entry is made, the custodian will receive a $315 check that’s cashed and the money placed in the lockbox. Overall, there’s a total of $500 in the lockbox after replenishment.
The bookkeeper should make the following entries:
How to do petty cash accounting using QuickBooks Online
QuickBooks Online uses a petty cash register format that’s easy to use and maintain. If you plan to have the custodian use QuickBooks Online, there are four easy steps to follow:
Click “Accounting” on the left-hand side menu and then choose “Chart of Accounts”.

Accessing Chart of Accounts on QBO
Accessing Chart of Accounts on QuickBooks Online
In the upper right portion of the window, click the green “New” button to create a petty cash account.

Creating a New Account
A sidebar window where you can create a new account will appear. Fill out the form and don’t enter a beginning balance. Click the green “Save” button once you’re done.

Creating a Petty Cash Account
Go back to the Chart of Accounts screen and look for “Petty Cash Account.” On the far right of the column, click “View Register” to arrive at the petty cash register.

Accessing the Petty Cash Register
Once the register appears, click the drop-down arrow and choose “Deposit“.

Petty Cash Register
- Payee: The payee is the petty cash custodian. In our sample above, the petty cash custodian is Heather Smith.
- Account: Select the Checking Account as the source of petty cash.
- Memo: If you want to add explanations to the entry, you may insert them in the Memo field. In our sample, we placed “Petty Cash Custodian” to make it clear that we’re depositing cash to the custodian.
- Amount Deposited: Enter the petty cash fund balance based on the policy.
After entering all expenses, it’s time to record the replenishment. First, click “Add Deposit” then fill out all the required information. Currently, we have $185 in our petty cash account. Heather needs a $315 reimbursement to bring the petty cash balance back to $500.

Recording Petty Cash Replenishment
Once you hit the green Save button, the petty cash account’s balance should be $500 again.

Petty Cash Balance after Replenishment
Common petty cash mistakes to avoid
Managing a petty cash fund may seem simple, but small errors can lead to bigger financial discrepancies over time. It’s important to handle petty cash with the same care and structure as larger business finances. Below are some common petty cash mistakes to watch out for:
1. Unorganized receipt maintenance
Failing to collect or keep receipts is one of the most common issues. Without proper documentation, it becomes difficult to verify or justify expenses, leading to accounting errors or potential fraud.
2. Lagging behind on expense tracking
Delaying log entries causes discrepancies between actual cash on hand and recorded balances. Always update the petty cash log immediately after each transaction.
3. Mixing personal and business expenses
Using petty cash for personal purchases — even temporarily — is a serious misstep. It compromises financial transparency and may violate company policies.
4. Not assigning a custodian
Without a clearly designated petty cash custodian, accountability is lost. A single person should be responsible for managing, disbursing, and reconciling petty cash.
5. Not reconciling consistently
Neglecting to regularly reconcile the petty cash log can allow small errors to accumulate, potentially hiding theft or mismanagement.
6. Not setting limits or policies
Without clear policies (e.g., max amount per transaction, types of allowed expenses), employees may misuse funds or request inappropriate reimbursements.
7. Failing to replenish promptly
Running out of cash without a plan to replenish can delay necessary purchases or create gaps in financial records.
Frequently asked questions (FAQs)
The ideal petty cash amount depends on the size and needs of the organization, but typically ranges from $100 to $500. It should be enough to cover small, routine expenses without being excessive.
Petty cash should be reconciled at least once a month to ensure accuracy and prevent misuse. More frequent reconciliation, such as weekly or biweekly, is recommended for higher activity levels.
Petty cash can be used for small employee reimbursements, but larger or recurring reimbursements should go through the standard expense reporting process.
Bottom line
If you plan to use petty cash for small business purchases like postage and office supplies, use the petty cash log to keep track of your transactions. Keeping careful records of cash expenditures will be a huge help when it is time to reconcile the account. Using accounting software can further simplify petty cash management.