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Works With the Accounting Software You Already Use
QuickBooks Online Xero
The Problem

"We Changed Banks" Is the Easiest Fraud to Miss

Built for the people who keep the vendor list and release the payments.

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One Email

Someone emails that their remit details changed, the vendor record is edited, and nobody double-checks

Next Payment

The next bill is paid straight to the fraudster's account

Weeks Later

The real vendor asks where their money is, and it's already gone

Features

Everything You Need to Stop a Bad Payment

From a quiet edit in QuickBooks or Xero to a verified, audited decision, in one workflow.

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Vendor Change Watching

Flags changes to a vendor's bank account, email, phone, address or name in real time, with a before-and-after view

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Lookalike & Duplicate Detection

Catches lookalike vendor names and email domains, shared bank accounts, duplicate invoices and unusually large bills

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Callback Verification

Shows the contact details from before the change, so you call the real vendor, not the number the fraudster supplied

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Payment Holds

Critical changes can automatically mark a vendor as on hold in QuickBooks or Xero until the change is cleared

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Full Audit Trail

Every action is logged with who, when and what changed, and the log exports to CSV

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Risk Reports

A monthly risk report per client file shows what was caught, what was cleared and how each one was verified

273HQ exception detail showing a before-and-after view of a vendor change and the callback verification card
How It Works

From a Risky Change to a Verified Decision

Connect a file and 273HQ takes it from there, so a bad change can't turn into a bad payment.

  • Connect your QuickBooks Online or Xero file in minutes and take a baseline snapshot of every vendor
  • Any risky change becomes an exception in your inbox, ranked by severity, with an alert for critical ones
  • Call the vendor on the contact details from before the change and record the result
  • Clear it, dismiss it with a reason, or confirm fraud and keep the vendor on hold
What We Watch

14 Built-In Rules, Running on Every Vendor

Each rule has a fixed severity, and the high-risk ones can only be cleared after a confirmed callback.

Vendor Changes

Bank details changed. Email, phone or remit address changed. Vendor name changed. Several fields changed at once. A dormant vendor reactivated or edited.

Risky Transactions

A bill soon after a detail change. A new vendor with a large first bill. A possible duplicate bill. An amount far above the vendor's normal.

Standing Checks

Duplicate or lookalike vendors. Details shared across vendors, like one bank account behind two names. Missing tax info on 1099-eligible vendors.

Security

We Watch Your Vendors Without Hoarding Their Secrets

273HQ is designed to hold as little sensitive data as it can.

  • Bank and tax numbers are reduced to a keyed fingerprint plus the last 4 digits as they're read, and can never be revealed
  • Emails, phones and addresses are masked, and a full reveal is a logged action
  • Role-based access: reviewers only see the client files they're assigned
  • Sign-in with MFA and single sign-on support
273HQ vendor detail with masked contact details, open exceptions and change history
Who It's For

Built for the People Who Pay the Bills

If a wrong payment would land on your desk, 273HQ is for you.

Accounting & Bookkeeping Companies

Watch every client's vendor list from one inbox. Assign reviewers to client files, set rules per client, and hand each client a monthly risk report.

Small Business Owners

Running the books yourself? Connect your own file and get a second set of eyes on every vendor change, without hiring anyone.

check Accounts Payable Teams
check Controllers
check Multi-Client Practices
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Simple Pricing, Per Connected File

Start free with one file, then pay as you add more. Cancel anytime.

Free

See it work on one file before you commit to anything.

$0 / 1 file

Includes:
  • 1 QuickBooks Online or Xero file, 1 user
  • All 14 rules run on every scan
  • Nightly scan for changes
  • Callback verification & audit log
Get Started Free
Full Protection

Paid

For anyone who wants every change caught the moment it happens.

$29 / month for your first file · +$19 each additional file

Includes:
  • Everything in Free, plus
  • Real-time change detection and immediate email alerts for critical changes
  • Payment holds, including automatic holds on critical changes
  • Unlimited team members and per-file reviewers
  • Customizable rules, monthly risk report PDFs and CSV exports
Start Free, Upgrade Anytime

Ready to Stop Paying the Wrong Account?

Create your free 273HQ account, connect a QuickBooks Online or Xero file, and see your first scan report in minutes.

  • Free plan for one file. Upgrade only when you need more.
Sign Up Free
273HQ exceptions inbox with critical and overdue exceptions at the top