Your AI tax copilot
Upload your tax documents. PaperTax reads them, identifies the information you need and builds step-by-step instructions for your canton’s tax app. Ask the AI questions about your documents or situation as you go. You check the entries and submit the return yourself.
Start freeInteractive walkthrough · Sample return in Vaud
Explore how PaperTax works
Upload your documents in any order. PaperTax identifies the document types and reads their contents. You do not need to sort them into categories or label the fields yourself.
Salary certificate
Recognized by PaperTax
Pillar 3a certificate
Recognized by PaperTax
Securities statement
Recognized by PaperTaxA document missing? Add it later. You can start with the papers you already have.
Each card explains what to enter in your cantonal app and where to enter it. The explanation uses your language. Field names keep the canton’s official wording so you can find them on screen. Open the source document to check the amount.
Open the document behind this instruction
The KPT statement covers 2023, not 2025. Ask KPT for the 2025 relevé de primes (premium statement) before entering these amounts in VaudTax.
Carry on with your other documents. Add the correct statement when you have it.
Open the document behind this instruction
The AI uses the documents you uploaded, your canton and your tax year when answering. Ask why an amount belongs in a field, explain a change in your situation, or ask it to review a possible mistake. These sample questions show how a conversation works.
Open your canton’s own tax app. Follow each instruction, check it off in PaperTax, and move to the next document.
From your PaperTax guide
Where you enter it
VaudTax
Déductions → Prévoyance 3e pilier A
Enter CHF 6'000 here, using the guide and the certificate to check the number.
You review and submit the return yourself. Take a break whenever you need; your guide is there when you come back.
Start freeYour files and guide are stored in Switzerland. They are encrypted while stored and while being sent between your browser and our services.
PaperTax deletes its stored documents and guide within 24 hours after you mark the return as done, or after two years of inactivity. Our service providers have different retention rules. See who processes your data and how long they keep it.
Built by Amir Mohammadi and Juan Pablo Zuluaga. Questions before starting? Contact us.
Add the documents you have. PaperTax recognizes them and organizes the guide around them.
You can work through the documents you already have and upload a missing statement when it arrives.
After unlocking the guide, use the chat when a number or instruction needs explaining. You stay in control of what you enter.
Have a broker export? Convert it to a Swiss e-tax statement (eCH-0196). Import it into a compatible cantonal tax app without entering each security by hand.
Upload your documents and read the first guide card for free. A card contains the instructions for one document. If you want to continue, a single payment gives you access to the full guide and chat for this return. There is no subscription.
See pricingNo. PaperTax reads your documents and gives you instructions for your canton’s tax app, such as VaudTax in Vaud or ZHprivateTax in Zurich. You check the values, enter them in that app and submit the return yourself.
All 26 cantons, plus federal tax. The guide uses the field names in your cantonal app and each canton’s published guidance. Check the entries before submitting; seek a tax advisor’s help for a complex situation.
Files and the guide are stored in Switzerland. PaperTax deletes its stored data within 24 hours after you mark the return done, or after two years of inactivity. AI processing takes place in the US, without model training on your documents. The privacy policy and trust page explain all processors and their retention rules.
See your first guide card for free. You can add missing papers later and work through the steps at your own pace.