Built for the people who keep the vendor list and release the payments.
Someone emails that their remit details changed, the vendor record is edited, and nobody double-checks
The next bill is paid straight to the fraudster's account
The real vendor asks where their money is, and it's already gone
From a quiet edit in QuickBooks or Xero to a verified, audited decision, in one workflow.
Flags changes to a vendor's bank account, email, phone, address or name in real time, with a before-and-after view
Catches lookalike vendor names and email domains, shared bank accounts, duplicate invoices and unusually large bills
Shows the contact details from before the change, so you call the real vendor, not the number the fraudster supplied
Critical changes can automatically mark a vendor as on hold in QuickBooks or Xero until the change is cleared
Every action is logged with who, when and what changed, and the log exports to CSV
A monthly risk report per client file shows what was caught, what was cleared and how each one was verified
Connect a file and 273HQ takes it from there, so a bad change can't turn into a bad payment.
Each rule has a fixed severity, and the high-risk ones can only be cleared after a confirmed callback.
Bank details changed. Email, phone or remit address changed. Vendor name changed. Several fields changed at once. A dormant vendor reactivated or edited.
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.
Duplicate or lookalike vendors. Details shared across vendors, like one bank account behind two names. Missing tax info on 1099-eligible vendors.
273HQ is designed to hold as little sensitive data as it can.
If a wrong payment would land on your desk, 273HQ is for you.
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.
Running the books yourself? Connect your own file and get a second set of eyes on every vendor change, without hiring anyone.
Start free with one file, then pay as you add more. Cancel anytime.
See it work on one file before you commit to anything.
For anyone who wants every change caught the moment it happens.
Create your free 273HQ account, connect a QuickBooks Online or Xero file, and see your first scan report in minutes.
© 2026 273HQ — a FrostWave Technologies, LLC product