Find the tool that catches your specific payroll fraud risk.

There's no single tool that covers every flavor of payroll fraud, and honestly, be suspicious of anything that claims to. Ghost employees, fake vendors, buddy punching, and a spoofed email asking to change someone's direct deposit are different problems with different tools. This list covers the strongest option in each lane, ranked by how much fraud risk they close off relative to what a typical SMB will actually pay and set up.

'AI fraud detection' gets used loosely in this space. Some of these tools are genuinely running machine learning models across your full transaction set, others are AI-flavored marketing on top of a fairly standard rules engine. Here's the honest ranking for a small business budget, not an enterprise one.

Middesk is a strong, US-focused business verification tool, but it's not the only option, and it's not the right fit for everyone (no international coverage, no self-serve signup, opaque pricing). If you're comparing alternatives, here's how the closest competitors actually differ, not just a list of names.

Truework is our pick for income and employment verification, mainly because it's the rare vendor in this category that publishes its prices. But it's US-only and per-check costs add up at real volume, so here's how the actual alternatives differ, not just a list of names.

Ramp is our expense/AP pick because its fraud and policy controls are free, not an upsell. It's not the only option, and it's not the right fit for every AP workflow, US-only, and real-time spend control rather than a forensic audit engine. Here's how the actual alternatives differ.

Sublime is our pick for payroll-diversion and BEC protection: free for your first 100 mailboxes, no MX change, and a detection engine you can actually read. It's not for everyone, above 100 mailboxes it's quote-only, and its best feature (tunable detection rules) only pays off if someone on your team will use it. Here's how the real alternatives differ.

Homebase is our pick for time theft and buddy punching if you need scheduling anyway: cheap, GPS-verified, and good enough for most single-location hourly teams. It isn't biometric and its GPS features need a paid plan, so here's how the real alternatives differ.

Gusto is our SMB payroll pick: full-service payroll with baseline fraud monitoring and hours-approval workflows built in, at a price that doesn't require a sales call. It's not dedicated fraud detection software, though, so here's where the real alternatives add something Gusto doesn't have.

GoodHire is our SMB background-check pick: published package prices, no minimums, FCRA guardrails built in. It's US-only and, worth knowing upfront, owned by Checkr, so some 'alternatives' here are really just a different front door. Here's how the real options differ.

Most of the well-known names in this space (MindBridge, AppZen, Socure) are priced and built for companies with an existing finance or security team. If you're under 50 employees and don't have that yet, here's what's actually going to be usable and affordable.

Ghost employees, people drawing a paycheck who don't actually work for you, are usually caught one of two ways: verifying that new hires and vendors are real people/entities at onboarding, or running anomaly detection across your existing payroll data to catch one that's already slipped through. Both approaches are covered below.

One thing to know before comparing names: this market consolidated hard. Checkr owns GoodHire, and First Advantage bought Sterling in late 2024, so some of the 'alternatives' you'll see compared against each other are actually the same company. For a small business the honest shortlist is below, ranked by how well each fits occasional, non-enterprise hiring.

There's a real tradeoff in this category between GPS-based verification (cheap, bundled with scheduling, but beatable by a coworker with your unlocked phone) and biometric verification (harder to fake, less scheduling depth). Both are legitimate depending on how serious your actual buddy-punching problem is.

Fake pay stubs and inflated income claims are a real, if quieter, source of payroll and lending-adjacent fraud. The strong tools verify from the source, straight from payroll providers and employer records, instead of trusting an uploaded document; a document-forensics layer catches altered stubs where source data can't be reached. Ranked for an employer verifying new hires.

This is a narrower category than it should be, most of the 'payroll fraud detection' conversation online skips right past the fact that email-based direct-deposit diversion is the single most common way SMBs actually lose money. The good news is that it's no longer a one-name category: there's now a real spread, from a free tier you can turn on this afternoon to the premium behavioral engines and, above all of them, the enterprise secure-email gateways (Proofpoint, Mimecast) that most SMBs will never need to shop for. Here's the layered shortlist, easiest and cheapest to adopt first.

Vendor payment fraud is payroll fraud's bigger sibling: same playbook (get a bank account changed, wait for the payment run), larger checks. The defenses stack in layers, verify the entity exists, verify the bank account belongs to it, watch the email channel where the change requests arrive, and audit what got paid. No single tool does all four, so this list is organized by layer.

'Free' is relative in this space, most dedicated fraud tools are enterprise-priced. But a few options have real free tiers or effectively-free starting points worth knowing about before you commit budget.