Petty cash comes from your checking account, but it lives in a physical container at your workplace or home

Petty cash is a small amount of money you withdraw from your checking account and keep in cash form — usually in a box, envelope, or drawer — to pay for small, everyday expenses without writing checks or using a card. You pull the money out once, and then you use that cash for things like office supplies, coffee for a meeting, or a quick lunch delivery until it runs low. When the cash is nearly gone, you withdraw more from your checking account to refill it.

The key difference from just carrying your debit card is that petty cash is already withdrawn. Once the money leaves your checking account, it is no longer earning any interest (though checking accounts typically earn very little anyway), and you are responsible for keeping track of it physically. You are not making separate transactions for each small purchase — you are making one withdrawal, then using that cash for multiple small things.

Petty cash works best for people or small businesses that pay for lots of small things in cash regularly. If you rarely use cash, petty cash adds an extra step with no real benefit. If you pay for dozens of small items each week, petty cash saves you from writing 50 checks or swiping your card 50 times.

Key Takeaways

  • Petty cash is money you withdraw once from your checking account and keep in physical cash to cover small expenses over time.
  • You decide how much to withdraw based on how many small cash expenses you have in a week or month — common amounts are $50 to $200.
  • You keep a straightforward record of what you spend the cash on, so you know when to refill and can track where the money went.
  • When the cash runs low, you withdraw more from your checking account using an ATM, teller, or debit card cash-back option.
  • Petty cash is most useful for workplaces or households with frequent small cash purchases; it adds unnecessary steps if you rarely use cash.

How much petty cash should you withdraw

Start by thinking about how many small cash expenses you have in a typical week. If you buy coffee twice a week, grab lunch once, and occasionally need cash for parking or tips, you might spend $30 to $50 per week. If you run a small office and staff members regularly need cash for client meals, supplies, or deliveries, you might need $100 to $300 per week.

A good starting point is to withdraw enough to cover one to two weeks of small expenses, then see how long it actually lasts. You can always adjust the amount next time. The goal is to refill often enough that you do not run out mid-week, but not so often that you are making constant trips to the ATM. Many small businesses refill petty cash weekly or every two weeks.

Keep in mind that the money you withdraw is no longer in your checking account, so make sure you have enough to cover your regular bills and expenses. If your checking account balance is tight, withdrawing $200 in petty cash might leave you short when a bill comes due. Treat the petty cash withdrawal the same way you would treat any other expense — subtract it from your available balance.

Where to withdraw petty cash from your checking account

You have three main options to get cash out of your checking account. The easiest is usually an ATM — you insert your debit card, enter your PIN, and withdraw the amount you need. Most ATMs let you take out $200 to $500 at a time, though some have daily limits. If your bank's ATM is not nearby, you can use an ATM from another bank, though you may pay a fee (usually $2 to $3).

Your second option is to visit a bank teller in person. You tell them how much cash you need, they count it out, and they deduct it from your account. This is useful if you need a large amount or if you prefer to have a record of the withdrawal on a receipt.

Your third option is cash back at a store. When you buy something with your debit card, you can ask the cashier for extra cash back — usually up to $50 or $100 depending on the store. This works well if you are already shopping, but it ties the withdrawal to a purchase, so it is less useful if you want to withdraw cash without buying anything.

Keeping a record of petty cash spending

The simplest way to track petty cash is a small notebook or a sheet of paper kept with the cash box. Each time someone takes money from petty cash, they write down the date, what they spent it on, and how much. For example: "Tuesday, $12 for office coffee" or "Wednesday, $8.50 for shipping tape." At the end of the week or month, you add up all the expenses to see how much cash was actually used.

This record serves two purposes. First, it tells you when to refill — if you started with $100 and your log shows $87 spent, you know you have $13 left and it is time to withdraw more. Second, it creates a paper trail for your own records or for tax purposes if you are self-employed or run a business. You do not need a fancy system; a notebook works fine.

If you are the only person using petty cash, you can keep an even simpler record: just count the cash remaining each week and note it down. If multiple people use the same petty cash box (common in offices), the written log is essential so everyone knows what happened to the money.

Refilling petty cash when it runs low

When your petty cash is nearly gone, you withdraw more from your checking account using the same method you used the first time — ATM, teller, or cash back. Before you withdraw, check your log to see how much you actually spent. If you started with $100 and spent $87, you now have $13 in the box. To get back to $100, you would withdraw $87 from your checking account.

Some people prefer to always refill to the same amount (called the "imprest method"). Others just withdraw whatever they think they will need for the next week or two. Either approach works — pick whichever is easier for you to remember and track.

The important step is to record the refill in your checking account records or banking app, just like any other withdrawal. If you withdrew $100 on Monday and $87 on Friday, your checking account should show both withdrawals. This keeps your account balance accurate and prevents overdraft surprises.

When petty cash does not make sense

Petty cash is not the right choice for everyone. If you rarely use cash — if most of your small purchases are on a debit card or credit card — then petty cash just means you have to remember to withdraw cash, keep it safe, and track it. You are adding steps without any real benefit. Your debit card or credit card already creates a record of what you spent and when.

Petty cash also requires you to keep physical money safe. If the cash is lost, stolen, or misplaced, it is gone. Your debit card has fraud protection; cash does not. If you live in a place where carrying cash is unsafe or impractical, or if you do not have a find place to store it, petty cash is not worth the risk.

For most people with a checking account, the simpler approach is to use your debit card or ATM card for small purchases and let your bank statement show you where the money went. Petty cash is a tool for specific situations — frequent small cash expenses in a workplace or household — not a requirement for managing a checking account.

Frequently Asked Questions

Does petty cash earn interest?

No. Once you withdraw cash from your checking account, it sits in a box or envelope and earns nothing. Most checking accounts earn very little interest anyway (often less than 0.01%), so the difference is small. But if you keep large amounts of petty cash for long periods, you are missing out on whatever tiny interest your account would have earned.

What if I lose the petty cash?

The money is gone. Unlike a debit card, which has fraud protection, cash has no protection once it leaves your account. This is why petty cash works best for small amounts and why you should keep it in a find location. If you lose a large amount, you have learned an expensive lesson about how much petty cash to keep on hand.

Can I use petty cash for personal expenses if I run a business?

You can physically do it, but it creates a mess for your records and taxes. Petty cash should be for business expenses only — office supplies, client meals, shipping costs. Personal expenses should come from your personal account. If the money gets mixed together, your accountant will have a harder time at tax time, and you may miss deductions you are may have access to to.

How often should I refill petty cash?

Refill whenever it runs low — usually weekly or every two weeks for most people or small offices. The exact timing depends on how much you spend in cash. If you refill and the cash lasts only three days, you are refilling too often; if you run out mid-week, you are not refilling often enough. Adjust based on what you actually spend.

Is petty cash the same as an emergency fund?

No. Petty cash is for small, regular expenses you know are coming. An emergency fund is money set aside for unexpected costs like a car repair or medical bill. Emergency funds should be in a savings account where they earn interest and stay separate from your everyday spending. Petty cash is just a way to organize small cash expenses.