Vendor Identity Verification 101: Why AP & Procurement Teams Must Move to an Identity-First Model
Everything you need to know about identity-first vendor verification.
by Ashley Poynter
Content Manager
PaymentWorksVendor Identity Verification 101: Why AP & Procurement Teams Must Move to an Identity-First Model
Ask any accounts payable or procurement leader what keeps them up at night, and you’ll get a familiar list: payment fraud, bad supplier data, compliance failures, duplicate vendors, and the constant churn of cleaning up onboarding mistakes. Underlying all of these challenges is one root issue that organizations rarely talk about directly—but can no longer afford to ignore:
Most companies still have no reliable way to verify vendor identity before bringing them into their systems.
Despite years of digitization efforts, vendor onboarding in many organizations still boils down to a series of fillable forms, emailed attachments, and trust. We ask vendors to type in who they say they are, we accept that information at face value, and then we rely on internal teams to hope nothing looks suspicious.
This is no longer viable. Fraud schemes are more sophisticated, supply chains are more global, and the volume of vendors flowing through AP and procurement environments is dramatically higher than it was even five years ago.
The solution?
A shift from form-based onboarding to identity-first vendor identity verification—a model that prioritizes verifying who a vendor is before validating what they provide.
This shift is quickly emerging as the new standard for organizations that want to reduce risk, streamline onboarding, and create a scalable supplier ecosystem that can support growth rather than hinder it.
Let’s break down why.
Table of Contents
Why Vendor Identity Verification Has Become a Business Imperative
The Problem: Configurable Vendor Forms Are Outdated and Dangerous
Why Standardization Is Essential for Vendor Identity Verification
What an Identity-First Approach to Vendor Onboarding Looks Like
Why AP and Procurement Teams Are Adopting Identity-First Models Now
Configurable Forms vs. Identity-First Verification: A Direct Comparison
Why Identity-First Vendor Identity Verification Is the Future
Final Thoughts: It’s Time for AP & Procurement to Lead the Identity-First Revolution
Get Ready for Vendor Management Day 2026
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Why Vendor Identity Verification Has Become a Business Imperative
Even organizations with mature procurement and AP processes often underestimate the risk embedded in vendor identity. This is partly because legacy onboarding procedures were not built for today’s threat landscape.
The vendor ecosystem has exploded
Between globalization, outsourcing, cloud-based operations, and specialized supply chains, companies rely on more vendors than at any point in history. Each vendor increases:
- Data complexity
- Points of entry into the business
- Opportunities for fraudsters to exploit
- Vendor identity verification is no longer optional—it’s necessary for scale.
Fraudsters target vendor setup, not payment execution
Payment fraud is rarely about breaking into banking systems. Instead, criminals impersonate legitimate vendors, hack email threads, or create believable fake entities—then submit banking details through onboarding channels that lack controls.
Once inside the vendor master, fraud is almost guaranteed:
- Payments flow to the wrong account.
- AP and procurement teams scramble to unwind the damage.
- Internal audits reveal gaps no one knew existed.
The entry point is not the payment.
It’s the identity.
Regulators are raising the bar
Whether it’s IRS TIN matching, sanctions screening, beneficial ownership requirements, or forthcoming Nacha rules around account validation, organizations are expected to prove they know who they’re paying.
“Good faith” is no longer enough.
Documentation isn’t enough.
A vendor’s self-reported details are definitely not enough.
Only identity verification closes the gap between regulatory expectation and operational reality.
The Problem: Configurable Vendor Forms Are Outdated and Dangerous
Many organizations assume their current onboarding process is sound simply because it lives inside a portal or procurement platform. But here’s the uncomfortable truth:
Digital forms are not the same as vendor identity verification.
Whether they’re built in an ERP, a P2P platform, an intake solution, or a custom workflow tool, configurable vendor forms share the same weaknesses:
1. Forms collect data—they don’t verify identity
A vendor can fill in any information they want:
- Business name
- Tax ID
- Address
- Banking information
Unless AP manually checks every field—and many teams do not have the resources—bad actors can pass through undetected.
2. Forms create inconsistency
Configurable forms seem appealing because they allow each department to capture exactly what it wants. But this flexibility leads to:
- Different forms across business units
- Expanding variations over time
- Lack of standardization for analytics and audits
- Confusion for suppliers
What begins as “customization” evolves into entropy.
3. Forms put the burden on AP and procurement
Manual reviews become the bottleneck:
- Checking bank formats
- Deciphering mismatched addresses
- Verifying tax details
- Confirming business legitimacy
- Performing OFAC or sanctions checks
The more teams rely on bespoke forms, the more they force AP to become an investigative unit instead of a strategic one.
4. Forms are inherently reactive
You can’t prevent what you can only react to. Configurable forms allow fraud to occur first, and detection happens later—if it happens at all.
5. Forms don’t ensure a repeatable, defensible process
If an auditor asked your team:
“How do you know each vendor is who they say they are?”
Most form-based processes do not have an answer.
Forms were revolutionary 10–15 years ago.
Today, they are a risk.
The future isn’t form-first.
It’s identity-first.
Why Standardization Is Essential for Vendor Identity Verification
Standardization often sounds restrictive. But in vendor identity verification, it is the single most enabling factor. Here’s why AP and procurement teams are moving away from configurable forms and toward standardized onboarding:
1. Standardization reduces errors and manual work
With one consistent process:
- Data formats match
- Approvals follow predictable pathways
- Required documents never vary
- Suppliers receive clear instructions
- Teams stop chasing missing or incorrect fields
Instead of reinventing the wheel with every vendor, the organization gains efficiency at scale.
2. Standardization prevents internal inconsistencies
AP teams often discover that:
- The West Region uses one form
- IT uses a different one
- Marketing asks for extra fields
- HR vendors flow through an outdated template
This creates fragmentation in the vendor master and piles of cleanup later.
3. Standardization enhances compliance
A consistent onboarding workflow ensures:
- Every vendor is screened the same way
- Documentation is captured in the same format
- Identity checks are applied universally
This strengthens audit readiness and regulatory adherence.
4. Standardization removes ambiguity for suppliers
When vendors don’t understand what to submit, they guess.
Standardization removes guesswork, reducing back-and-forth communication and accelerating onboarding.
5. Standardization is the foundation for identity-first processes
Identity-first models require:
- Consistent inputs
- Reliable checkpoints
- Repeatable flows
- Clear audit trails
Configurable forms can’t support this.
Standardization can.
What an Identity-First Approach to Vendor Onboarding Looks Like
An identity-first model flips the traditional process on its head. Instead of collecting data first and then attempting to verify it, identity-first onboarding ensures that verification is the very first step.
Here’s what that shift looks like.
1. Identity verification becomes the entry gate
Before banking information, tax details, or addresses ever enter your system, the identity-first workflow ensures:
- The vendor is a legitimate business entity
- Their tax identity is valid
- The business is not sanctioned or restricted
- Contact information is genuine and tied to the business
- The person submitting details is authorized to do so
In other words: no identity, no onboarding.
2. All vendors—domestic or international—follow a unified process
Identity-first models accommodate global requirements, but they enforce uniformity:
- Every supplier is verified
- Every identity passes through standard checks
- Every onboarding follows the same workflow
This eliminates the patchwork of one-off forms and local variations that plague global organizations.
3. Bank account validation happens securely and independently
Rather than reviewing a PDF or trusting a typed-in routing number, identity-first models validate banking information through:
- Authoritative data sources
- Real-time account ownership checks
- Authentication against recognized institutions
This dramatically reduces the risk of vendor impersonation and redirected payments.
4. A defensible audit trail is created automatically
Identity-first systems generate:
- Timestamped verification results
- Proof of identity checks
- Documentation associated with screening
- Evidence of sanctioned-party review
- Full workflow logs
No more trying to reconstruct who approved what and when.
5. Vendor data becomes cleaner, more reliable, and more secure
Identity-first onboarding produces high-quality data because it enforces accuracy at the source. This leads to:
- Fewer disputes
- Smoother invoice processing
- Better reporting
- Stronger controls
- Reduced fraud exposure
When AP and procurement are no longer fixing onboarding mistakes, they can focus on delivering strategic value.
Why AP and Procurement Teams Are Adopting Identity-First Models Now
Several forces are accelerating the transition to identity-first vendor verification.
1. Fraud threats are increasing
Business email compromise (BEC) schemes, vendor impersonation attacks, and fraudulent banking changes are at historic highs. These risks escalate when identity verification is weak or inconsistent.
2. Workloads are rising faster than headcount
Teams overwhelmed with manual verification cannot scale. Identity-first automation eliminates hours of vendor review, freeing AP and procurement to focus on high-value tasks.
3. Compliance pressure is intensifying
With more attention on sanctions, beneficial ownership, and tax compliance, organizations can no longer rely on self-reported data. Identity-first verification is becoming a compliance necessity.
4. Modernization is no longer optional
Digital transformation isn’t about going paperless—it’s about adopting systems that fundamentally reduce risk and operational friction. Vendor identity verification platforms are now a core part of that evolution.
5. Clean vendor data improves the entire source-to-pay cycle
Great sourcing, strong contracts, accurate payments, meaningful analytics—all of it depends on trustworthy vendor identity.
Identity-first onboarding ensures that trust is built at the beginning, not retrofitted later.
Configurable Forms vs. Identity-First Verification: A Direct Comparison
| Legacy Form-Based Model | Identity-First Model |
| Collects data only | Verifies identity before data entry |
| Highly customizable (inconsistently) | Standardized and controlled |
| Manual review required | Automated, authoritative validation |
| Error-prone, inconsistent | Clean, reliable, repeatable |
| Easy for fraudsters to exploit | Difficult for fraudulent vendors to enter |
| Heavy AP workload | AP focuses on exceptions and strategy |
| Weak audit trail | Strong, defensible documentation |
Identity-first verification doesn’t just make onboarding safer—it makes it simpler, smarter, and scalable.
Why Identity-First Vendor Verification Is the Future
Identity-first models reflect a broader shift happening across procurement and AP:
moving from document-driven processes to trust-driven systems.
Verifying vendor identity upfront means organizations:
- Reduce fraud exposure
- Strengthen compliance
- Shorten onboarding cycles
- Increase supplier satisfaction
- Improve internal productivity
- Create cleaner vendor masters
- Reduce rework and disputes
Most importantly, they create a foundation for sustainable growth. As vendor ecosystems expand, identity-first onboarding ensures the organization can support that expansion securely and efficiently.
This isn’t about adopting a specific platform or tool. It’s about adopting a new mindset:
Identity must come before information. Verification must come before onboarding. Standardization must come before customization.
Organizations that embrace this shift will have stronger controls, smoother operations, and lower fraud risk. Those that continue relying on configurable forms will see risks—and inefficiencies—compound over time.
It’s Time for AP & Procurement to Lead the Identity-First Revolution
AP and procurement teams are not just transaction processors. They are risk managers, data stewards, and strategic partners who determine the strength of the organization’s vendor ecosystem.
Vendor identity verification is not just a technical upgrade—it is a foundational change in how organizations protect themselves, their suppliers, and their financial integrity.
The companies that win will be the ones that stop treating onboarding as a form-fill exercise and start treating it as what it truly is:
The first and most important act of vendor risk management.
Vendor identity verification is the future of AP and procurement.
The identity-first model is how we get there.
Get Ready For Vendor Management Appreciation 2026
Vendor Management Appreciation Day (VMAD) returns in 2026—and we’d love to have you join the celebration. There’s never a wrong time to recognize one of the most essential yet often overlooked functions in every organization: vendor management.
We’re already preparing for the 2026 festivities, and we want the entire community to be part of it. VMAD was created to bring vendor management professionals together, spotlight the innovation happening in the field, and give this important work the recognition it deserves.
Throughout the year, we’re rolling out monthly gifts and resources to help elevate your vendor management practice. We’re also planning a series of events designed to spark connection, learning, and celebration across the profession.
While you wait for the big day, explore what’s new—and grab some free vendor management goodies.
Want Help Aligning Teams On Vendor Identity Verification?
Explore our blogs below. They’re filled with action items you can implement right away.
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Interested in More Tips On Vendor Identity Verification?
Want Personalized Guidance On Vendor Identity Verification?
Contact Us–we’d love to help you
Frequently Asked Questions
People Also Ask—Vendor Identity Verification FAQs
What is vendor identity verification, and why is it important?
Vendor identity verification is the process of confirming that a supplier is a legitimate, authorized business entity before they are added to your vendor master or allowed to receive payments. It goes beyond collecting forms—it ensures the vendor’s tax identity, business status, banking information, and authorized contacts are all validated through authoritative sources. Strong vendor identity verification reduces fraud, improves data quality, and strengthens organizational compliance from day one.
How does vendor identity verification reduce payment fraud?
Most payment fraud doesn’t occur during the payment itself—it happens during vendor onboarding, when inaccurate or fraudulent identity information is entered into the system. Vendor identity verification prevents bad actors from entering your ecosystem by validating business legitimacy, confirming tax and banking details, and ensuring the person submitting information is truly associated with the company. This creates a secure gate before any payment information is stored or used.
Why are configurable vendor forms not enough for vendor identity verification?
Configurable forms collect vendor information, but they do not authenticate it. Fraudsters can enter false tax IDs, spoofed contact details, or manipulated banking information, and internal teams often lack the time or tools to verify every field manually. Because forms vary across departments, they also introduce inconsistencies and compliance gaps. Vendor identity verification requires a standardized, authoritative, and repeatable process—something form-based workflows cannot deliver.
What does an identity-first approach to vendor onboarding look like?
An identity-first approach prioritizes vendor identity verification before any supplier is entered into the ERP, added to the vendor master, or approved for payment. Instead of relying on self-reported data, identity-first onboarding validates business information, tax identities, and bank accounts through trusted, independent sources. It standardizes the process for every vendor, reduces manual review, supports audit readiness, and ensures only legitimate suppliers are activated. This model protects AP and procurement teams from fraud while improving efficiency and data accuracy.
