Edited reference income
The income or the number of tax shares is retouched on a genuine notice to pass an eligibility or solvency threshold.
Document fraud detection
Detect a fake tax notice
In France, the tax notice (avis d’imposition) is the standard proof of income for renting a home, getting a loan or claiming benefits, and its reference taxable income is a prime target for fraudsters. Docusan examines the file you receive and highlights traces of editing.
Typical frauds
The most common forgeries
Someone else’s notice
The taxpayer’s name and address are replaced on the notice of a third party whose income matches what is expected.
Recomposed document
Elements are pasted from another image or another notice to build a document that looks consistent.
Our detection approach
What Docusan analyzes
Four levels of analysis to spot forgeries, whether the document is a PDF, a scan or a photo.
01
Metadata
- Missing metadata
- Inconsistencies in the file properties
02
Pixel-level anomalies
- AI-generated images, deepfakes
- Inserted content (splicing, inpainting, copy-move…)
03
Structural anomalies
- Edits and annotations
- Recovery of previous versions
04
Customizable detectors
- Consistency with document templates
- Data cross-checking
- Watchlists
Relevant industries
FAQ
Your questions
Does Docusan replace the verification services of the tax authorities?
No. Docusan analyzes the file itself and does not query tax authority databases. Both approaches are complementary: Docusan highlights technical modifications of the document you receive.
Can a scanned or photographed tax notice be analyzed?
Yes. For an image, Docusan analyzes pixels, copy-pastes and metadata. For a PDF, it also examines its properties, previous versions and structure.
What happens when an anomaly is detected?
The document gets a “Warning” or “Alert” verdict and the anomalies are located in the viewer. Your teams make the final decision.
Free trial
Test Docusan on your own documents
Upload a PDF, scan or photo and get a verdict within seconds.