Is there a way to set up monthly ACH payments to a vendor?

Welcome to the Community forum, @cheryl31.

Yes, there's a way to set up monthly ACH payments to a vendor through our partnership with Bill Pay. Please know that this feature is only available to users with Online Bill Pay in QuickBooks Online (QBO). 

If you'd want to sign-up for Online Bill Pay, you can visit the Online Bill Pay page.

To learn more about how this feature works, you can read below helpful articles:

• Set up a bank transfer to a vendor
• Pay a vendor

If you have further questions about paying a vendor, let me know by commenting below. I'm here for you. Have a wonderful day ahead!