The short answer
To pay by eCheck, you authorize the business to debit your bank account. Nothing gets mailed. The business sends the payment request through the ACH network, the system U.S. banks use to move money between accounts.
- What you need: your bank's 9-digit routing number, your account number, and whether it's checking or savings.
- Where you pay: on the business's own checkout page, an invoice link, a phone call or a signed form.
- Recurring payments: for a personal account, federal rules say the business needs your signed or similar authorization, and you get a copy.
- Stopping one: tell your bank at least 3 business days before a scheduled recurring payment, and tell the business too.
- One you didn't approve: report it to your bank within 60 days after it sends the statement that shows it.
How to Pay With an eCheck: What Each Screen Asks For
An eCheck is an electronic payment pulled straight from your bank account. If you're new to it, what an eCheck is and how it works covers the basics. You can only pay by eCheck where the business offers it, and it usually works with U.S. bank accounts only. The business picks how you pay. You'll see one of four setups:
| Where you pay | What you'll enter or give | How you approve it |
|---|---|---|
| Online checkout | Name on the account, routing number, account number, account type | A checkbox or "I authorize" button |
| Invoice link (email or text) | The same bank details on the invoice's payment page | A checkbox or button on that page |
| Phone | You read your bank details to the person on the call | You say yes out loud; the call is recorded or you get a written confirmation |
| Signed form | Bank details written on a paper or online form, sometimes with a voided check | Your signature (ink or electronic) |
Paying online or from an invoice, step by step:
- Choose eCheck or bank account as the payment method. Some pages call it "ACH" or "pay from bank."
- Pick the account type. Checking or savings, and personal or business if it asks.
- Enter the name on the account exactly as your bank has it.
- Enter your routing number and account number. Many forms ask for the account number twice to catch typos.
- Read the authorization text before you tick the box. It should say the amount, the date, and whether it will repeat.
- Save the confirmation page or email. It's your record if anything goes wrong.
Paying by phone. The business should read back the amount and date before it takes the payment. Nacha, the body that sets the ACH network's rules, says a one-time phone payment needs either a recording of your "yes" or a written notice confirming it. Ask for the written notice if you want your own record.
Signing a form. Common for rent, tuition, memberships and payment plans. Keep a copy. The form should name the business, the amount (or how it's worked out), the dates and how to cancel. For what a good one includes, see our ACH authorization form guide.
One thing to expect: an eCheck isn't approved in seconds like a card. The money usually leaves your account within a few business days, and the business may not treat it as paid until it clears.
Where to Find Your Routing and Account Numbers
The easiest place is your bank's app or website: look for "account details" or "direct deposit info." If you have paper checks, both numbers are printed in the row of digits along the bottom. The routing number is the 9-digit number, usually on the left. It identifies your bank. Your account number usually sits to its right. The check number is the short number, so leave it out. If your bank lists separate routing numbers for wires and for ACH or electronic payments, use the ACH one. A wrong digit is the most common reason an eCheck comes back unpaid, so check both numbers before you submit.
What You're Agreeing To, Especially for Recurring Payments
When you tick the box or sign the form, you're giving the business permission to take money from your account. That permission is called an authorization. Read it for three things:
- One time or recurring? A single payment, or a charge every month until you cancel.
- How much? A fixed amount, or a variable one, like a utility bill.
- How to cancel. Who to contact and how much notice they need.
Recurring payments from a personal account have extra protection. Regulation E is the federal rule that covers electronic payments from consumer accounts. Under section 1005.10(b), recurring debits from your account can be authorized "only by a writing signed or similarly authenticated" by you, and the business must give you a copy. Online, a checkbox or electronic signature can count. Either way, you should end up with a copy you can keep.
If the amount changes. Under section 1005.10(d), when a recurring payment will differ from the last one or from the amount you authorized, you must be sent written notice of the amount and date at least 10 days before it's taken. The rule also lets you agree up front to get notice only when the amount falls outside a range you set.
The business also picks a code for how you authorized the payment, such as online, phone, a signed form or business-to-business. You don't need to know these codes to pay. If you're curious, see SEC codes and ACH authorization.
Can I Stop an eCheck? How to Cancel a Payment
Yes, for recurring payments from a personal account. Regulation E, section 1005.10(c), says you can stop payment of a recurring debit by telling your bank, by phone or in writing, "at least three business days before the scheduled date of the transfer."
- Tell the business first. Cancel the plan or subscription in writing and keep a copy. This stops future charges at the source.
- Call your bank at least 3 business days before the next payment date. Give the business's name, the amount and the date.
- Follow up in writing if your bank asks. A bank may require written confirmation of a phone request within 14 days. If it asks and you don't send it, the phone request stops being binding after 14 days.
- Watch your next statement to make sure the payment didn't go through.
Withdrawing permission entirely. The CFPB's official commentary on section 1005.10(c) says that once you tell your bank you've revoked the business's authorization, it must block all future payments from that business for that debit. The bank may ask for proof you told the business, so the written notice from step 1 helps.
A one-time payment is harder to stop. It's often taken within a day or two of your approval, so call the business and your bank right away. Stopping a payment doesn't cancel what you owe. If the bill is still due, sort it out with the business. Your bank may also charge a stop-payment fee.
Businesses Paying Vendors: ACH Credit or Wire
If a vendor asks your business to "pay by eCheck," you have two ways to pay from your own bank:
- Let the vendor pull it. Pay on the vendor's invoice link or checkout with your business checking details. Business-to-business debits use a code called CCD.
- Push it yourself. Send an ACH credit from your bank's business online banking. You enter the vendor's routing and account numbers and the amount, and your bank sends it. Nothing about your account goes to the vendor.
| ACH credit from your bank | Wire transfer | |
|---|---|---|
| Speed | Usually one to two business days; same-day if your bank offers Same Day ACH (up to $1 million per payment) | Usually the same day |
| Cost | Usually lower; set by your bank | Usually higher; set by your bank |
| Can it be pulled back? | Only in narrow cases, like a duplicate or wrong amount | Very hard once sent |
| Best for | Regular invoices and repeat vendors | Large, urgent or one-off payments, like a real estate closing |
Watch for changed bank details. If a vendor emails new payment instructions, call them on a number you already have before you pay. Once sent, a payment to a fraudster's account is hard to recover, by ACH or wire. For a fuller comparison, including cards, see eCheck vs ACH vs wire transfer.
How to Write an eCheck: What Check Services Actually Do
Strictly speaking, you don't write an eCheck. The business you're paying creates it from the bank details and permission you give. If a business accepts eChecks, paying on its checkout or invoice page is the direct route.
When people search for how to write an eCheck, they often mean services that let you fill in a check online. They tend to work in one of two ways:
- A printable check. You fill in a check on screen, and the recipient prints it and deposits it like a paper check. It's still a check, with the same deposit and clearing time.
- An electronic payment. The service sends the money from your account as an ACH payment on your behalf.
Either way, you're handing your bank details to another company. Check who runs the service, what it charges and how it protects your data. Your bank's own online bill pay is another way to send a payment to someone who doesn't take eChecks. Depending on the payee, the bank sends it electronically or mails a paper check for you.
Paying by eCheck: FAQ
Is paying by eCheck safe?
Paying on the real business's own checkout or invoice page is generally safe, and personal accounts have Regulation E protection against debits you didn't authorize. Only give your bank details to a business you know, on a page or call you started. See how eChecks work.
How long does an eCheck take to come out of my account?
Usually within a few business days. It depends on when the business submits it and whether it uses same-day processing. Make sure the money is in your account from the day you authorize the payment until it clears.
What happens if I don't have enough money for an eCheck?
Your bank can return the payment unpaid, much like a bounced check. Your bank may charge you a fee, the business may charge a returned-payment fee under its terms, and the bill stays unpaid. The business may also try the payment again.
Can I stop an eCheck after I've sent it?
For a recurring payment from a personal account, yes: tell your bank at least 3 business days before the scheduled date and cancel with the business. A one-time payment may already be on its way, so contact the business and your bank right away.
Can I pay by eCheck from a savings account?
Often, yes. Many checkouts let you choose checking or savings. Some business-to-business payments only work from business checking. Your bank may also limit some withdrawals from savings, so check your account terms.
How can my business let customers pay by eCheck?
You need eCheck set up through a merchant services provider and a payment gateway. Prices, limits and funding times vary by provider. Our guide to eCheck processing covers cost, timing and returns. You can also tell us how you bill, and we'll tell you whether eCheck fits.
General payments guidance, not legal advice. Rules as of October 13, 2026. Regulation E (12 CFR part 1005) applies to consumer accounts; business accounts are governed by Nacha's Operating Rules and your bank's account agreement. Bank fees, cut-off times and processes vary, so check with your bank.
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