What is petty cash? Definition, management, and examples
Learn what petty cash is, how to set up a fund, and best practices for tracking small business expenses.
September 2023 | Published by Xero
Published Monday 22 June 2026
Table of contents
Key takeaways
- Petty cash is a small amount of money, typically $100 to $500, kept on hand for minor business expenses like office supplies, postage, and small reimbursements.
- Every petty cash transaction should be recorded with a receipt and logged in a petty cash book or tracking system to maintain accurate records for tax and IRS compliance.
- Regular reconciliation of your petty cash fund helps you catch errors, prevent misuse, and keep your accounting records accurate.
- Setting clear policies around who can access the fund, what it can be used for, and how transactions are documented makes petty cash management straightforward and audit-ready.
What is petty cash?
Petty cash is a small reserve of physical money that a business keeps on-site to cover minor, everyday expenses. It's the go-to fund when you need to pay for something small and immediate, like a roll of stamps or a last-minute supply run, without going through a formal purchasing process.
Most small businesses set aside between $100 and $500 for their petty cash fund, though the exact amount depends on how frequently small expenses come up. The word "petty" comes from the French word petit, meaning small, so petty cash literally refers to small cash.
A petty cash fund gives your team a quick, practical way to handle low-value purchases. Instead of writing a check or processing a card payment for a $10 expense, you simply pull the cash from the fund and record the transaction. This keeps your day-to-day operations moving without unnecessary paperwork for every minor cost.
Types of petty cash
Not every business manages its petty cash fund in the same way. The type of system you choose depends on your transaction volume, how tightly you want to control spending, and your bookkeeping preferences.
- General petty cash: an open fund where cash is available for any small business expense. There's no fixed replenishment schedule, and the fund is topped up as needed. This approach is flexible but harder to track closely.
- Imprest petty cash: the most common system. You start with a fixed amount, and when the fund runs low, you replenish it back to the original balance. Every dollar spent must be accounted for with a receipt, making reconciliation straightforward.
- Emergency petty cash: a separate reserve set aside specifically for unexpected or urgent expenses, like an emergency repair or a same-day courier. It's not used for routine purchases.
- Discretionary petty cash: funds allocated for non-essential spending at the discretion of a manager or team lead. This might cover things like team lunches, small celebrations, or morale-boosting purchases.
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Disclaimer
This glossary is for small business owners. The definitions are written with their requirements in mind. More detailed definitions can be found in accounting textbooks or from an accounting professional. Xero does not provide accounting, tax, business or legal advice.
Examples of petty cash
Petty cash covers the kind of small, frequent purchases that pop up in any workplace. These are expenses that are too minor to justify a formal purchase order but still need to be paid for and tracked. Many of these fall into the category of miscellaneous expenses.
Common petty cash purchases include:
- Office supplies like pens, notepads, printer paper, and sticky notes
- Postage and shipping for small packages or letters
- Coffee, tea, and snacks for the break room
- Parking fees and local transportation costs for errands
- Small reimbursements to employees for out-of-pocket purchases
- Cleaning supplies or minor maintenance items
- Tips for delivery drivers
Here's a quick example of how it works in practice. Say you run a small consulting firm and your office manager needs to pick up printer ink on the way to work. They take $35 from the petty cash box, buy the ink, and drop the receipt into the petty cash envelope when they get back. The receipt gets logged, and the remaining cash in the fund is adjusted accordingly.
Advantages and disadvantages of petty cash
Petty cash can be a practical tool for your business, but it also comes with some risks to manage. Understanding both sides helps you decide how to set up your fund and what controls to put in place.
Advantages:
- Quick and convenient for small, everyday purchases without processing delays
- Reduces the administrative burden of writing checks or filing expense reports for minor costs
- Keeps operations running smoothly when you need something right away
- Simple to set up and doesn't require any special tools or accounts
Disadvantages:
- Physical cash is more vulnerable to theft or misuse than digital payments
- Tracking can become messy if receipts go missing or transactions aren't logged promptly
- Difficult to maintain oversight when multiple people have access to the fund
- Manual record-keeping takes time and increases the chance of errors
- Harder to create a clear audit trail compared to electronic transactions
How to set up and manage a petty cash fund
Setting up a petty cash fund is straightforward once you've decided how much you need and who's responsible. Follow these steps to create a system that's easy to manage and keeps your records clean. For a deeper walkthrough, see Xero's guide on managing a petty cash fund.
1. Determine the fund amount
Start by estimating how much your business typically spends on small expenses over a 2 to 4 week period. For most small businesses, a petty cash fund between $100 and $500 is enough. You can always adjust the amount later based on how quickly the fund gets used up.
2. Assign a custodian
Designate 1 person as the petty cash custodian. This person is responsible for holding the cash, approving disbursements, collecting receipts, and keeping the petty cash book up to date. Having a single point of accountability reduces the risk of errors and misuse.
3. Create a petty cash policy
Write a short, clear policy that outlines the rules for your fund. Include what types of purchases are allowed, the maximum amount per transaction, who can request money, and what documentation is required. Share this policy with your team so everyone knows the process.
4. Store cash securely
Keep the petty cash in a locked box or drawer in a secure location. Only the custodian should have regular access. If your office has a safe, that's an even better option. The goal is to minimize risk while keeping the fund accessible when it's needed.
5. Track every transaction and collect receipts
Every time money leaves the fund, record the date, amount, purpose, and who received it in your petty cash book. Attach the receipt to a petty cash voucher or log it digitally. This habit is what makes petty cash management work; without consistent tracking, reconciliation becomes a headache.
Petty cash accounting
Petty cash accounting is how you record petty cash transactions in your books so every dollar is accounted for. Keeping your petty cash records accurate protects you during audits and keeps your financial statements reliable.
Recording petty cash transactions
When you first create the fund, you'll record a journal entry in your general ledger that debits your petty cash account and credits your main cash account. For example, if you set up a $200 petty cash fund, you'd debit "Petty Cash" for $200 and credit "Cash" for $200.
As purchases are made, you don't record each one individually in your general ledger. Instead, the custodian tracks them in a petty cash book or spreadsheet. The petty cash book serves as your detailed record, logging every disbursement with the date, amount, category, and a brief description. When it's time to replenish the fund, that's when you create the accounting entries.
Replenishing the petty cash fund
When the fund runs low, the custodian totals up all the receipts and vouchers. You then write a check or transfer funds to bring the petty cash balance back to its original amount.
The journal entry for replenishment debits the appropriate expense accounts (office supplies, postage, meals, and so on) and credits your cash account. For instance, if you spent $45 on office supplies, $30 on postage, and $15 on parking, you'd debit each of those expense categories and credit "Cash" for the total of $90.
This approach, known as the imprest system, keeps your petty cash balance consistent and makes it easy to spot discrepancies.
How to reconcile petty cash
Petty cash reconciliation is the process of verifying that the cash remaining in your fund, plus all documented receipts, equals the original fund balance. Regular reconciliation helps you catch errors early and ensures your records stay accurate.
Here's how to reconcile your petty cash fund:
- Count the physical cash remaining in the petty cash box.
- Add up all the receipts and vouchers for purchases made since the last replenishment.
- Add the remaining cash to the total of your receipts. This sum should equal the original fund balance.
- If the totals don't match, investigate the difference. Common causes include missing receipts, math errors, or unrecorded transactions.
- Document any discrepancies and note how they were resolved.
- Once everything balances, prepare the replenishment request to bring the fund back to its starting amount.
How often you reconcile depends on your transaction volume. Some businesses do it weekly, while others reconcile every time the fund needs replenishing. The IRS expects you to maintain accurate records for all business expenses (see IRS Publication 583 for documentation requirements), so consistent reconciliation isn't just good practice; it's a compliance necessity.
Petty cash vs. cash on hand
Petty cash and cash on hand are related terms, but they refer to different things in accounting. Understanding the distinction helps you classify your assets correctly on your balance sheet.
Petty cash is a specific, small fund set aside for minor everyday expenses. It has a fixed purpose, a designated custodian, and a defined replenishment process. It's typically a small amount, like $100 to $500, kept in a locked box at your place of business.
Cash on hand is a broader term that refers to all the liquid cash your business has readily available. This includes your petty cash fund, cash register contents, any undeposited checks, and other physical currency on the premises. On your balance sheet, cash on hand may also include highly liquid assets like money market accounts or short-term deposits.
Think of it this way: all petty cash is cash on hand, but not all cash on hand is petty cash. Your petty cash fund is just 1 component of your total cash on hand.
Is petty cash an asset?
Yes, petty cash is a current asset on your balance sheet. Even though the money has been set aside in a separate fund, it still belongs to your business and has value.
You'll typically find petty cash listed under "Cash and Cash Equivalents" in the current assets section of your balance sheet. It's classified as a current asset because it's cash that can be used immediately, unlike fixed assets like equipment or property that take time to convert to cash.
When you set up a petty cash fund, the money doesn't disappear from your books. It simply moves from your main cash account to a petty cash account. Your total assets stay the same; only the classification changes.
Petty cash best practices
A few simple habits can make your petty cash fund easier to manage and less prone to issues. These best practices apply whether you're just starting a fund or tightening up an existing one.
- Set a per-transaction limit. Capping individual disbursements (for example, $50 per transaction) keeps the fund focused on genuinely small expenses and discourages misuse.
- Require a receipt for every transaction. No exceptions. Missing receipts are the most common reason petty cash records fall apart.
- Reconcile on a regular schedule. Whether it's weekly or at each replenishment, consistent reconciliation catches problems before they snowball.
- Use prenumbered vouchers. Assigning a unique number to each petty cash slip creates a clear audit trail and makes it easy to spot gaps.
- Conduct surprise audits. Periodically counting the fund without advance notice helps ensure the custodian is following the process.
- Go digital where you can. Using accounting software to log and categorize petty cash transactions reduces manual errors and saves time during reconciliation. Learn more about how to track business expenses effectively.
Simplify petty cash tracking with Xero
Managing petty cash with a physical logbook or spreadsheet works, but it adds time to your week and makes errors harder to catch. Xero's cloud-based accounting software lets you record petty cash transactions digitally, categorize expenses as they happen, and reconcile your fund in a few clicks.
With Xero, you can set up a dedicated petty cash account and log each transaction directly from your desktop or the mobile app. Receipts can be captured on the go, and your records stay organized and accessible from anywhere. When it's time to replenish, you'll already have a clear, up-to-date picture of where the money went.
For businesses that want even more control, Xero Expenses lets your team submit expense claims digitally, with receipt photos attached. That means fewer paper slips to track and a cleaner audit trail for your petty cash fund. Get one month free.
FAQs on petty cash
Here are answers to frequently asked questions about petty cash.
Why is it called petty cash?
The word "petty" comes from the French word petit, meaning small. Petty cash refers to a small amount of money kept for minor business expenses.
What is an imprest petty cash system?
An imprest system starts with a fixed amount of cash, and the fund is replenished back to that exact amount each time it runs low. It's the most common petty cash method because it makes tracking and reconciliation predictable.
Is petty cash a cash equivalent?
No, petty cash is classified as cash, not a cash equivalent. Cash equivalents are short-term investments that can be converted to cash within 90 days, like Treasury bills or money market funds.
How much should a petty cash fund be?
Most small businesses keep between $100 and $500, depending on how often minor expenses come up. Review your typical small purchases over a 2 to 4 week period to find the right amount for your business.
How does petty cash affect your expenses?
Petty cash purchases are recorded as business expenses when you replenish the fund. Each receipt is categorized into the appropriate expense account, like office supplies or postage, which flows through to your profit and loss statement.