What you can do with a checking account number

You can send money to someone's checking account in three main ways: through your own bank's bill pay system, through an ACH transfer service like Venmo or PayPal, or by giving the person a check. Each method uses the account number and routing number differently, and each has different speed and cost tradeoffs.

The fastest and cheapest option is usually your bank's bill pay feature if you're sending to someone you know well and don't need the money to arrive the same day. ACH apps work when the recipient doesn't have a bank account set up with you yet. Checks are slowest but work everywhere and require nothing but the account holder's name and address.

What you cannot do is send money directly from your phone or computer just by having someone's account number alone. You need either a relationship with a payment service that both of you use, or you need to go through a bank or credit union that holds your money.

Key Takeaways

  • Your bank's bill pay system is free and takes one to three business days, but only works if you have the recipient's full name, address, and account and routing numbers.
  • ACH transfer apps like Venmo, PayPal, and Cash App let you send money to someone's bank account if they have an account with that app, but they are not the same as sending directly to a checking account.
  • Wire transfers move money the same day but cost $15 to $50 and require you to visit a bank branch or call a bank representative.
  • Checks are free and work with only a name and address, but take five to ten business days to clear.
  • Never share your own account number with someone you don't trust, because they can set up recurring payments or withdrawals without your permission.

Using your bank's bill pay feature

Most checking accounts come with a bill pay tool built into online banking. You log in, select "pay a bill" or "send money," enter the recipient's name, address, account number, and routing number, and choose a date. Your bank then sends the money by ACH (Automated Clearing House), which is a network that moves money between banks overnight or over a few business days.

Bill pay is free and works for sending money to individuals, not just businesses. The recipient does not need to have an account with your bank or any special app. The money lands in their account as a normal deposit, and they can withdraw it like any other money.

The catch is timing. Most bill pay transfers take one to three business days. If you need money to arrive the same day, bill pay will not work. Also, you need the recipient's full legal name and mailing address on file at their bank, because the ACH system matches the name you provide against the name on the account.

To set up bill pay, log into your bank's website or app, look for "bill pay," "send money," or "transfers," and follow the prompts. If you cannot find it, call your bank's customer service line — the number is on the back of your debit card.

Sending through ACH apps and payment services

Apps like Venmo, PayPal, Cash App, and Zelle let you send money to someone's bank account, but the process is not the same as using bill pay. These apps do not take the recipient's account number directly. Instead, the recipient must have their own account with the same app, and you send money to their username or phone number.

Behind the scenes, the app connects to the recipient's bank account and deposits the money there. But you never enter their account number yourself. This is actually safer for the recipient, because you cannot see or store their full account details.

These apps are fast — usually one to three business days for standard transfers, though some offer same-day options for a fee. They are also free for basic transfers between individuals, though fees apply if you use a credit card instead of a bank account, or if you want instant delivery.

The downside is that both people must have an account with the same app. If your friend uses Venmo and you use Cash App, you cannot send money directly between the two. You would have to transfer your money out of Cash App to your bank account first, then into Venmo, which defeats the purpose.

Wire transfers for same-day delivery

A wire transfer moves money the same day, usually within a few hours. Your bank takes the money from your account and sends it directly to the recipient's bank using the account and routing numbers you provide. The recipient's bank deposits it immediately.

Wire transfers cost money — typically $15 to $50 depending on your bank and whether it is domestic or international. You usually have to do it in person at a branch or over the phone with a bank representative, though some banks allow wire transfers through online banking.

Wire transfers are final. Once the money leaves your account, you cannot cancel or reverse it. If you send money to the wrong account number by mistake, the recipient's bank is not required to return it, and you may have no way to recover it. For this reason, always double-check the account and routing numbers before you confirm a wire transfer.

To send a wire transfer, call your bank or visit a branch with the recipient's full name, account number, routing number, and the amount you want to send. Have the recipient's bank name and address ready as well. The bank will give you a confirmation number and a receipt.

Sending a check

A check is the oldest and slowest way to send money, but it works with only a name and address. You write a check to the recipient, mail it, and they deposit it at their bank or mobile app. The money takes five to ten business days to clear, depending on the banks involved and the amount.

Checks are free to write if you already have a checkbook. If you need to order checks, they cost $10 to $30 for a box of 100, depending on the design and your bank. You can also ask your bank to print a single check or a few checks if you do not have a checkbook.

The main risk with checks is that they can be lost or stolen in the mail. If a check goes missing, you can ask your bank to stop payment on it and issue a new one, but this takes time and may cost a fee. For large amounts, consider a wire transfer or bill pay instead.

To send a check, write the recipient's name on the "Pay to the Order of" line, write the amount in numbers and words, sign it, and mail it to their address. Include a note with your name and phone number so they know who sent it.

What information you actually need

The information required depends on the method. Bill pay and wire transfers need the most detail: the recipient's full legal name (as it appears on their bank account), their account number, their routing number, and their mailing address. If any of this is wrong, the money may go to the wrong account or bounce back.

ACH apps need only the recipient's username, phone number, or email address associated with their account on that app. You do not handle their account number at all.

Checks need only the recipient's name and mailing address. You do not need their account number or routing number.

Never ask someone for their account number over text, email, or social media. If you need to send money to someone, use one of the methods above and let them provide their information through a secure channel, or use an app where they control what information you see.

What to do if the transfer fails or takes too long

If a bill pay or ACH transfer does not arrive within the time your bank promised, log into your account and look for a transaction history or status page. Most banks show whether a transfer is pending, completed, or failed. If it failed, the money should return to your account within one to three business days.

If the transfer is stuck in pending status after the promised time, call your bank's customer service line. Have your confirmation number and the recipient's account number ready. The bank can check the status on their end and tell you whether the money is in the recipient's bank's queue or if there was a problem.

If a wire transfer fails, your bank will tell you immediately and the money will stay in your account. If a wire transfer succeeds but goes to the wrong account, contact your bank right away and ask them to contact the recipient's bank to request a reversal. This is not may provide to work, but banks will try if you act quickly.

For checks, if the recipient says they never got it after two weeks, ask your bank to stop payment and issue a replacement. This usually costs $25 to $35 and takes a few days.

Frequently Asked Questions

Can someone take money from my account if they have my account number?

Yes, if they also have your routing number and your name. They can set up a bill pay transfer or ACH withdrawal without your permission. This is why you should never share your account number with someone you do not trust completely. If someone does take money without permission, contact your bank immediately and report it as unauthorized.

What is the difference between a routing number and an account number?

The routing number identifies your bank or credit union. The account number identifies your specific account at that bank. Together, they tell the ACH system where to send money. You need both to send money by bill pay or wire transfer.

How long does it take for money to show up after I send it?

Bill pay and standard ACH transfers take one to three business days. Wire transfers take a few hours, usually the same day. Checks take five to ten business days. Apps like Venmo and PayPal take one to three business days for standard transfers, but offer same-day options for a fee.

Can I send money to someone at a different bank than mine?

Yes. Bill pay, wire transfers, ACH apps, and checks all work between different banks. The ACH network and wire transfer system connect all banks in the United States, so your bank can send money to any other bank as long as you have the correct account and routing numbers.

What if I send money to the wrong account number by mistake?

For bill pay and ACH transfers, contact your bank immediately and ask them to contact the recipient's bank to request a reversal. This sometimes works if you catch it quickly, but is not may provide. For wire transfers, the money is usually gone for good. Always double-check account numbers before you send.