A deposit slip is a paper form you fill out to tell your bank what cash or checks you're putting into your account

A deposit slip is a small form—usually a few inches wide—that you complete by hand when you deposit money in person at a bank branch. You write your account number, the date, and the amount of cash and checks you're depositing. You keep one copy, and the bank keeps another as a record of the transaction.

Deposit slips used to be how most people moved money into their accounts. Now they're optional at most banks. Mobile check deposit, ATM deposits, and transfers have replaced them for most transactions. But some situations still require one, and understanding when and how to use one matters if you're depositing cash or if your bank's system asks for it.

Key Takeaways

  • A deposit slip records your account number, the deposit date, and the total amount of cash and checks you're putting in, and you keep a copy as proof.
  • Most banks no longer require deposit slips for routine deposits, but some still ask for them when you deposit cash or multiple checks in person.
  • If your bank offers mobile check deposit, you can skip the slip entirely by photographing the front and back of each check through the app.
  • ATM deposits and bank transfers move money without any slip, but cash deposits at a teller window may still need one depending on your bank's policy.
  • Keep your copy of the deposit slip until the transaction appears in your account statement, in case there's a discrepancy to dispute.

When you still need a deposit slip

Most banks make deposit slips optional now, but you may still encounter them in these situations. If you're depositing cash at a teller window, your bank may require a slip to document the amount and your account. Some banks have stopped requiring them for cash deposits too, but it's safer to fill one out anyway—it gives you a paper record that you handed over the money.

If you're depositing multiple checks or a mix of cash and checks, a slip helps organize the deposit and makes it clear which checks go with which account. Older banks or smaller credit unions are more likely to still use slips as standard practice. If you're unsure whether your bank requires one, ask the teller or check your bank's website.

How to fill out a deposit slip correctly

Deposit slips have the same basic layout across most banks. At the top, you'll see your account number printed or a blank line where you write it. Fill in the date of the deposit. Then list each check separately by its amount, or group all checks under a "checks" line with the total. Write the cash amount on its own line. Add up all amounts and write the total at the bottom.

Use a pen, not pencil, so the bank's copy is legible. Write clearly and large enough to read. If you're depositing checks, you don't need to write the check numbers—the bank reads those from the checks themselves. Some slips have a line for a memo or note; you can leave this blank or write a brief description like "paycheck" or "client payment" for your own records.

Deposit slips versus mobile check deposit

Mobile check deposit is faster and requires no slip. You open your bank's app, select "deposit check," photograph the front and back of each check, enter the amount, and submit. The bank processes it without you visiting a branch. The app creates a digital record, and you get a confirmation number instead of a paper slip.

Mobile deposit works for checks only, not cash. If you need to deposit cash, you still have to go to a branch or ATM. Most banks limit the amount you can deposit per check and per day through the app—often $5,000 to $10,000 per check and $25,000 per day, though this varies. If you're depositing a large check or multiple checks, mobile deposit may hit the daily limit and require a second deposit the next day.

ATM deposits and when you don't need a slip

Many banks now offer ATM deposits for both checks and cash. You insert the checks or cash into the machine, confirm the amount on the screen, and the transaction is complete. No slip is needed. The ATM prints a receipt with a confirmation number, which serves as your proof of deposit.

ATM deposits are available 24/7, which is a major advantage over branch hours. However, not all ATMs accept cash deposits, and some banks charge a fee for out-of-network ATM use. Check your bank's website to find which ATMs near you accept deposits. If you're traveling or don't have access to your bank's ATM, a deposit slip at another bank's branch may be your only option—though many banks no longer accept deposits from non-customers.

What to do if you lose your deposit slip copy

If you handed over a deposit and kept no copy, don't panic. The bank has a record. Check your account statement a few days after the deposit—the transaction should appear there with the date and amount. If it does, the deposit went through correctly. If it doesn't appear after a week, contact your bank and give them the date and approximate amount you deposited. They can look it up in their system.

If there's a discrepancy—you deposited $500 but only $400 shows up—your bank can investigate. This is where a deposit slip copy helps: you can show the bank what you submitted. Without it, the bank will check their records and the teller's count from that day. Most banks can resolve these issues within a few business days, but having documentation speeds the process.

Deposit slips at different types of banks

Traditional brick-and-mortar banks are most likely to still use deposit slips, especially for in-person transactions. Credit unions often require them as well, particularly for cash deposits. Online banks typically don't use deposit slips because they have no physical branches—you deposit checks by mobile app or mail them in.

If you bank with a credit union or a smaller regional bank, ask whether they still use slips or if they've moved to digital-only deposits. Some banks provide slips at the teller window but don't require them; you can choose to use one or skip it. If you prefer a paper trail for your records, using a slip is always an option even if it's not required.

Frequently Asked Questions

Do I have to use a deposit slip if my bank still has them?

No. Most banks make them optional. If you're depositing cash or checks at a teller, you can ask for a slip, but the teller can usually process the deposit without one. For mobile or ATM deposits, no slip exists—the app or machine creates a digital record instead.

What happens if I write the wrong amount on a deposit slip?

The bank counts the actual cash and checks you hand over, not what you wrote on the slip. If you wrote $500 but deposited $600, the bank deposits $600. If there's a mismatch, the teller may ask you to correct the slip before processing. Always double-check your math before handing it over.

Can I deposit a check without a slip at the ATM?

Yes. ATM check deposits don't require a slip. You insert the check, the machine reads it, you confirm the amount on the screen, and the transaction completes. You get a receipt with a confirmation number as proof.

How long does a deposit take if I use a slip?

In-person deposits at a teller are usually available the same business day or next business day, depending on the time you deposit and your bank's processing schedule. Mobile and ATM deposits typically post within one to two business days. A deposit slip doesn't speed up or slow down the process—the bank's system does.

Should I keep my deposit slip copy?

Yes, keep it until the deposit appears in your account statement. If there's ever a question about whether the deposit went through or the amount, you have proof of what you submitted. Once the transaction shows in your statement, you can discard the slip.