If you’re accepting ACH payments over the internet, NACHA requires that you receive and record consent from your customer. In the event of a disputed transaction, you may be asked to share your proof that your customer consented to the transaction.
Use the below text to obtain your customer’s consent.
I authorize <name of your business> to initiate a one-time electronic funds transfer for the payment described above from my bank account under the terms of this authorization on <date of transaction> which will be processed on the next business day. This payment can be revoked by calling <name of your business> < your phone number>.