How to Eliminate Paper Check Payments With AP Automation
AP Automation to Eliminate Paper Check Payments
Paper checks are not a legacy problem your organization will eventually get around to solving. They’re an active cost, a fraud vector, and a process bottleneck. The longer they stay in your payment mix, the more they cost.
Most finance leaders already know this. The ROI case for moving off paper checks is not the obstacle. The obstacle is usually execution: how do you move vendors from check to ACH at scale, without introducing new risk, and without the transition becoming a project that consumes your AP team for months?
Vendor onboarding is how you get there. Not by making the check process faster, but by removing it.
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The Real Cost of Paper Check Payments
Checks are the most expensive payment method available to AP teams. That’s an acknowledged reality across the payments industry.
The per-check cost includes materials, printing, postage, and processing time. Multiply that across your payment volume, and the annual figure is significant. But the visible cost is only part of it.
Float and timing. Checks take days to clear. That delay creates uncertainty in cash position, complicates reconciliation, and makes it harder to accurately forecast outflows. Electronic payments clear faster, which means your books are more accurate.
Returned and uncashed checks. Checks sent to outdated addresses get returned. Checks sent to vendors who’ve changed banks don’t clear. Each return requires investigation, reissuance, and additional processing time. The per-incident cost of a returned check is significantly higher than the base processing cost.
Stop payments. When a check is lost or a payment needs to be canceled, the stop payment process costs time and bank fees. At volume, this is a non-trivial line item.
Reconciliation complexity. Paper checks make reconciliation harder. Outstanding checks that haven’t cleared sit in the books as open items. Bank statement reconciliation against a large volume of outstanding checks is time-consuming, error-prone, and fundamentally manual.
Storage and retrieval. Paper documentation requires physical storage and creates retrieval overhead during audits or disputes. That overhead is invisible until someone needs to find a specific payment record, at which point it becomes very visible.
Check Fraud Is Not Going Away
The cost argument for eliminating paper checks is strong on its own. The fraud argument makes it urgent.
Paper checks are the most fraud-prone payment method in the AP toolkit. Check fraud requires nothing more than a stolen check, a scanner, and basic document editing software. The tools are widely available. The targets are predictable. And the results are difficult to recover from.
Check washing — altering the payee name or dollar amount on a legitimate check — is a persistent threat. Counterfeit checks created from genuine check images are another. Both methods are low-tech, high-yield, and increasingly common.
The AFP’s annual Payments Fraud and Control Survey has consistently ranked checks as the payment method most targeted by fraud, with nearly six in 10 (58%) experiencing check fraud in 2025. This continues to be the case, year after year, despite the availability of electronic alternatives that are measurably more secure.
If your organization is still writing checks at volume, you are carrying fraud exposure that doesn’t exist in an electronic payment process.
Why Finance Teams Stall on the Transition
The ROI case is made. The fraud risk is documented. So why are checks still in the mix for most organizations?
The honest answer is that moving to ACH feels like trading a known problem for an unknown one.
With checks, the process is familiar. The controls, such as they are, are understood. Everyone knows what to do. With ACH, there’s a new set of questions: How do we collect bank account information from hundreds of vendors? How do we know the account information is authentic? What happens if a vendor submits banking details that belong to someone else? What if a fraudster intercepts the transition and redirects payments?
These are legitimate concerns. They’re also solvable. But organizations that don’t have a clear answer to them tend to defer the transition indefinitely. The check process continues. The costs and risks accumulate.
The specific concern that stops most transitions is vendor bank account authentication. Collecting ACH details from vendors isn’t operationally difficult. Confirming that those details are accurate and actually belong to the vendor claiming them is where most manual processes break down.
What AP Automation Actually Does to Eliminate Paper Checks
AP automation in the context of check elimination isn’t about automating the check process. It’s about replacing it.
The core workflow shift looks like this: instead of generating a check for each payable, the payment system routes to ACH. Instead of mailing a physical document, the payment moves electronically. Instead of waiting for clearing and reconciliation, the transaction settles quickly with a clean digital record.
But before that shift can happen safely, the vendor data that drives ACH payments has to be right. Specifically, it has to be authenticated.
Structured vendor bank account collection. AP automation replaces the freeform collection of banking details — vendors emailing routing and account numbers, submitting scanned documents, calling the AP line — with a structured workflow that enforces required fields, correct formatting, and standardized documentation.
Bank account authentication. Before any ACH payment goes out to a vendor, the account they’ve submitted needs to be authenticated as belonging to them. This step is what separates a secure electronic payment process from one that simply moves the fraud risk from paper to ACH.
Sanctions and compliance screening. Vendors being migrated from check to ACH should be screened as part of the transition. The move to electronic payments is an opportunity to clean up your vendor master file, not just a change in payment method.
Automated record-keeping. Every electronic payment generates a digital record automatically. Reconciliation against ACH transactions is faster and more accurate than against outstanding checks. Audit trails are complete by default.
The ACH Transition Doesn’t Have to Be a Project
One reason check elimination projects get deferred is the perception that transitioning a large vendor base to ACH is a major undertaking. It doesn’t have to be.
The transition becomes manageable when vendors handle their own enrollment. Instead of your AP team collecting bank account information from each vendor through individual outreach, vendors complete their own enrollment through a structured, guided workflow. Authentication runs automatically. Data flows to your payment system without manual entry.
For a vendor base of hundreds or thousands, the self-service enrollment model is the difference between a six-month project and a rolling process that clears the queue steadily without consuming AP team bandwidth.
Vendors who resist ACH are worth understanding separately. In most cases, resistance comes from unfamiliarity or a specific concern about the process. A clear, professional enrollment experience addresses most objections. For vendors who genuinely cannot accept ACH, check remains available — but the goal is to make it the exception, not the default.
How PaymentWorks Supports the Move Away from Paper Checks
PaymentWorks is a vendor identity platform that handles the vendor-side authentication that makes ACH adoption safe at scale.
When vendors enroll in ACH through PaymentWorks, their banking details are authenticated before they enter your payment system. Bank account ownership is confirmed. The information that drives your electronic payments is not self-reported data accepted at face value; it’s authenticated data tied to a documented onboarding record.
For organizations migrating existing vendors from check to ACH, PaymentWorks manages the enrollment workflow: structured outreach, guided data collection, authentication, and seamless data transfer to the ERP. The AP team manages exceptions. The bulk of the transition runs without them.
The result is a payment mix that’s faster, cheaper, and measurably more secure without introducing the authentication gap that makes ACH feel risky.
The Transition Is Already Overdue
If paper checks are still a significant share of your payment volume, the cost and risk have been accumulating for years. The question isn’t whether to make the transition. It’s how to make it without creating new problems in the process.
That’s a solved problem. The tools exist. The workflow is established. The barrier most organizations are managing around — vendor bank account authentication at scale — is exactly what AP automation addresses.