Find the money your
invoices are hiding.
Find the money your invoices are hiding.

Invoice Guard HQ reviews your Stripe, PayPal, and CSV exports to surface duplicate charges, billing anomalies, and currency mismatches, with a plain-English explanation for every finding, written from your actual data. Then it keeps watching: continuous monitoring catches new duplicate charges as they happen and emails you once per issue, never twice.

Duplicate charges Billing anomalies Currency mismatches Continuous monitoring

Know exactly what looks wrong, where it came from, and what to do about it, from your actual invoice data, not a generic flag.

No setup. No card. Upload a file and see the risks in minutes.

Integrity scan preview

Duplicates + anomalies in review

Running
Checking duplicate invoices, billing anomalies, and currency conversion anomalies 72%
1,240Invoices checked
7Duplicate risks
3Anomalies flagged
Duplicate payment risk Stripe + PayPal overlap $917.09 may have been paid twice
Currency anomaly EUR/USD mismatch Converted amount does not reconcile with the USD record
Live scan telemetry Real totals from actual scans, updated as they happen
Early access
230 Invoices scanned
$9,347.09 Potential savings found
68 Duplicate risks caught
9 Currency anomalies flagged

From the founder

I built Invoice Guard HQ after watching small businesses lose money to billing errors nobody caught. It started as a personal tool. Now it quietly protects other people's bottom lines too.

Matt.E, Founder

Founder philosophy
Under 90 sec Average time to complete a full CSV scan
No CSV rows stored Browser scans keep invoice rows in your tab
No account needed Start scanning immediately with any CSV export
Plain-English findings Every flag includes a specific explanation from your data

Trust before connection

Start with a local CSV scan before connecting anything.

The fastest path is the browser-only pre-scan. Your CSV rows stay in the browser tab, and you can review duplicate risk, billing anomalies, and currency conversion anomalies before deciding whether provider import is worth it.

Invoice Guard HQ logo

Team-led support

The Invoice Guard HQ team

If something feels off, email support@invoiceguardhq.com and we will personally look into it.

What we never do

Built for review, not payment control.

Never need your passwordUse browser CSV pre-scan, demo data, or restricted provider access.
Never touch paymentsInvoice Guard HQ does not approve payments, refunds, payouts, or transfers.
Never upload CSV rows during pre-scanThe browser-only scan keeps your CSV rows in the tab.
Sample review queue Example data
12Invoices scanned
$1,770.77Potential savings found
4High-risk matches
High
$684.23 overlap between Stripe and PayPal Same amount and issue date across two payment sources.
High
Possible repeat invoice for Acme Services Same invoice number, customer and amount.
Review
Monthly vendor billed twice inside 15 days. Velocity check marked it for review.

Why This Happens Even to Smart Teams

You're not careless. Nothing you own reads all three systems at once.

Invoices arrive separately

Three systems, three exports, three review trails.

Stripe PayPal Spreadsheets

Nothing compares them

Each source looks correct on its own. The overlap only exists between them, where nobody is looking.

The duplicate survives

It clears review because every copy of it looks legitimate.

How Invoice Guard HQ Works in Minutes

Start fast, stay in control, and only connect providers when the workflow is worth it.

1. Scan Securely

Upload a CSV or connect your accounts. Everything starts in your browser and your data never leaves your control.

2. Get Clear Insights

Every finding comes with a short, plain-English explanation written from your actual invoice data, not a generic flag, but a specific reason based on what was found. Duplicates, anomalies, and currency conversion anomalies, all with context.

3. Take Action

Use the plain-English findings and supporting evidence to dispute charges, correct errors, and close the gaps, with everything you need in one clear report.

Pricing

Start free, or let Invoice Guard continuously watch for duplicate charges, billing anomalies, and currency risks.

Private by design. Clear results. Cancel anytime.

Free

$0

Scan one CSV instantly in your browser.

  • Browser-only scan
  • Your data stays on your machine
  • No card required
  • Optional free account for saved scans
  • Basic risk findings and explanations

Catch one bad invoice and it may already pay for itself.

Run free scan

Want saved scans? Create a free account

Pro

$49/month

Broader monitoring for growing businesses.

  • Higher-volume invoice review
  • Stripe and PayPal monitoring
  • Duplicate detection
  • Billing anomaly detection
  • Currency conversion risk checks

One caught billing issue can cover the monthly cost.

Start Pro

Everything in Starter, plus PayPal

Plain-English findings

Not a Flag. A Finding. With Context.

Most tools tell you something looks wrong. Invoice Guard HQ tells you exactly what it found, which invoice it came from, why it was flagged, and what to check next, in plain English, from your actual data.

Your data explains the finding. You decide what to do about it.

Learn the review workflow

Short, practical guides for teams checking Stripe, PayPal, CSV exports, and recurring billing records.

StripeHow to find duplicate invoices in Stripe AnomaliesBilling anomalies that cost businesses money WorkflowDuplicate detection: CSV vs Stripe QuickBooksHow to find duplicate invoices in QuickBooks FreelancersHow freelancers get overbilled without knowing it FAQDuplicate invoice and anomaly questions

Ready to stop leaking money?

Free to start. No setup. Find your first issue in under 90 seconds.
Invoice Guard HQ. Quietly protecting your bottom line.