Underbilling Finder

Free Beta

Upload your billing data

Check CSV, Excel, PDF, Word or image files for potential underbilling.

Check my billing Report a problem
No account required Files are deleted after processing CSV, Excel, PDF, Word and images Transparent calculations
Example result Works with your currency

Potential underbilling found

Generated using synthetic sample data.

Approved records
2,431
Matched
2,397
Discrepancies
34

Check billing

Check your billing

Upload your own billing data or try synthetic sample data. Real files give the most useful beta signal.

Free Beta: Underbilling Finder is currently free while we test and improve the service. Checks and complete CSV reports are available with no account, email gate, payment, or feature lock.

Don't have files ready?

See how it works without uploading your own files.
  1. 1. Upload
  2. 2. Verify
  3. 3. Match columns
  4. 4. Results

Upload your billing data

No account required. Supports CSV, Excel, PDF, Word and images. Files are processed for this check, not sent to an external AI or document-processing provider, and deleted according to the beta file-handling policy.

Supported formats
  • CSV
  • Excel (.xlsx)
  • PDF
  • Word (.docx)
  • JPG/JPEG
  • PNG
Scans and photos

Photos and scanned PDFs are read in your browser. Check extracted values before running the analysis.

By uploading files, you confirm that you are authorised to use this information for this check.

Approved timesheets

Drop your approved-work document or export here

CSV, Excel, PDF, Word, JPG or PNG · Max 10 MB

Billing export

Drop your invoice, billing report or export here

CSV, Excel, PDF, Word, JPG or PNG · Max 10 MB

Trust

Built for review, not black-box decisions.

Underbilling Finder shows how each discrepancy was calculated and where the underlying records came from. Your team makes the final decision.

Transparent

Every result shows its calculation basis.

Data-minimised

Only the operational fields required for comparison are needed.

Review-led

Ambiguous matches are flagged rather than guessed.