ACH payments are a simple way to move vendor payments from paper checks to safe, low-cost bank transfers. They save time, reduce errors, and simplify vendor management for finance teams of all sizes.
What ACH Payments Are and Why Businesses Use Them
ACH payments allow companies to transfer money directly from their accounts to those of their suppliers. ACH payments can reduce reliance on checks (and sometimes cards) by moving vendor payments directly between bank accounts. ACH payments are often more cost-effective and more secure than paper checks. ACH credits can settle the same day when sent as Same Day ACH (subject to eligibility and cutoff times) or on the next banking day (or within two banking days) under standard processing.
For example, a small marketing agency paying multiple freelancers can save hours of administrative work each week by using ACH instead of mailing checks. ACH also reduces the risk of lost or delayed payments and helps transfer funds electronically through the ACH Network.
Using ACH helps businesses:
- Pay vendors on time
- Reduce administrative costs
- Improve vendor relationships
- Track payments easily
Switching to ACH also streamlines accounting and provides finance teams with better visibility into cash flows.
Getting Ready to Use ACH in the Finance Team
Before processing ACH payments, your business needs the right infrastructure in place. An ACH policy is important for ensuring everything goes according to plan.
You can follow this preparation checklist for executing ACH payments:
- ACH-enabled bank account: Verify the appropriate daily transfer limits, and ensure the bank account is set up for ACH credits (and ACH debits if you plan to pull funds).
- Payment method guidelines: Establish clear guidelines for when checks or other payment methods will be accepted. Make ACH the default method for vendor payments.
- Roles and responsibilities: Assign duties to designated approvers and payment release owners to minimize mistakes and ensure accountability.
- Tooling: Use a tool to manage vendors, invoices, and payment runs. Zenwork Payments makes tracking easier and reduces manual processing.
Collecting Vendor Information and Bank Details
Accurate vendor records are essential for ACH success. To collect vendor bank details for ACH, businesses need a secure, standardized process. Each vendor should provide:
- Legal name and business address
- Contact info (email and phone) for invoices and payments
- Bank name, routing number, and account number
- Payment terms (e.g., Net 15, Net 30)
Tip: When obtaining bank details, use a secure portal, such as the Zenwork Payments portal. It is not advisable to ask suppliers to send their bank details via email, chat, or Excel files. Depending on your needs, you can use two-factor authentication for extra security against fraud. Also, ensure that vendors’ contact information is always up to date to support a prompt resolution of any payment issues.
Linking ACH to Banks, Accounting, and AP Systems
Once you gather vendor data, integrate ACH into your financial systems through a bank portal or an accounts payable solution like Zenwork Payments that syncs with QuickBooks Online and QuickBooks Desktop.
| Area | What to Set Up for ACH |
|---|---|
| Bank portal | User roles, ACH access, and daily limits |
| Accounting system | Vendor records, payment terms, and GL accounts |
| AP/payment platform | Payment methods, cut-off times, and approval rules |
| Reconciliation workflow | Mapping ACH batches to invoices and GL entries |
When ACH is integrated with your accounting system, bills and invoices selected for payment can sync into your payment run, reducing duplicate entry and improving auditability. This integration helps prevent duplicate entries, supports accurate general ledger mapping, and creates a clear audit trail for your finance team.
Creating a Simple ACH Approval and Payment Flow
Payments should only be sent after proper approval has been obtained. A straightforward ACH approval process for vendor payments helps ensure accuracy and prevent fraud. ACH workflows can be designed around invoice amounts, departments, or vendor types.
Typical ACH payment flow:
- Capture the bill or invoice details and link them to the vendor before initiating payment to help ensure accurate payment records.
- Review the payment details and send them to an approver to authorize the payment.
- Include approved payments in an ACH payment run. Batch processing helps speed up the process.
- After verifying accuracy and helping avoid mistakes, the finance owner releases the batch to the bank.
Keeping ACH Payments Safe and Compliant
Handling bank account information responsibly is critical. Below are some recommended controls that help deliver secure ACH payments for small business teams without adding complexity:
- Store details in a secure system with limited access
- Use approval rules and review vendor updates
- Collect W-9 forms at onboarding for easier 1099 compliance
- Review vendor bank changes regularly, and limit access to sensitive information to support security
- Establish alerts for irregular activity, and conduct regular audits of ACH activity to support compliance with the Nacha Operating Rules and your internal policies
Explaining ACH to Vendors and Internal Teams
Clear communication helps everyone transition smoothly. Educating vendors and staff helps eliminate confusion and increase adoption. For example, creating a quick guide or video explaining how vendors should enter bank information online can be helpful. Staff should also understand the process for handling vendor exceptions, particularly when vendors request checks.
Here are some key talking points:
- ACH is the default payment method for new vendors
- Vendors can enter their bank details in a secure portal
- Typical deposit timing after approval
- Handling exceptions for vendors who prefer checks
How to Set Up ACH Payments with Zenwork Payments
The ACH onboarding flow with Zenwork Payments integrates vendor setup, payment approvals, and payments into a single system. Vendors can enter their own information in a secure web portal, and your finance team can review vendor details before paying them via ACH.
Step-by-step ACH setup with Zenwork Payments:
- Add a new vendor or send an invite link.
- The vendor logs in and enters their bank information, W-9 (if needed), and legal details.
- The finance team reviews and approves the vendor.
- A finance owner schedules or submits the payment run for selected bills and invoices.
- Zenwork uses connected banking channels to initiate and monitor ACH payments.
- For reporting and reconciliation, payment and batch details are accessible.
Real-Life Scenarios
| Real-life scenario | Example flow |
|---|---|
| Vendor switches from checks to ACH | The vendor enters bank details in Zenwork Payments, and the next payment goes out by ACH instead of check. |
| New contractor onboarded | The contractor submits a W-9 (if required) and bank info, and the first payment is sent by ACH—no paper check. |
| CPA firm manages multiple client entities | The firm keeps separate bank accounts and rules per client, but uses one ACH workflow to onboard vendors and run payments across clients. |
| Vendor bank change detected | A bank detail change triggers an alert to the manager before the ACH batch is released. |
| High-value vendors | Large payments require an extra approval step, but the ACH run still goes out on schedule. |
FAQs
1. What is needed to start ACH payments with vendors?
A bank account that supports ACH, clear usage rules, and a secure tool like Zenwork Payments for collecting vendor bank details.
2. How can a business collect vendor bank details safely?
Vendors should enter routing and account numbers through a secure portal so the data is protected and kept out of email or spreadsheets.
3. Do ACH payments change tax or 1099 rules?
No. ACH payments are generally treated like check payments for 1099 purposes, so businesses still collect W-9 forms, track yearly totals, and file 1099s as required. Payment card and third-party network payments are generally reported on Form 1099-K instead (by the payment settlement entity).
4. What if a vendor still wants to be paid by check?
ACH can remain the default while certain vendors are marked as check-only. All records stay centralized for AP ease of use.
5. How does Zenwork Payments help track ACH?
Each ACH batch is linked to its vendors, making reconciliation and reporting straightforward.
The Bottom Line
Move from checks to ACH with a controlled, repeatable process your team can run every pay cycle. Keep vendor data, payment approvals, and payment tracking centralized for cleaner operations and easier audits.
Streamline vendor payments with ACH in Zenwork Payments—standardize onboarding, payment approvals, and bank transfers in one place.