Get started

What you need

• Claude Desktop

  On Linux, macOS or Windows, signed in to your Claude account. Get Claude Desktop

• Your documents

  As PDFs or photos, whenever you have them. You can start without them.

• A browser for Claude

  To fill in the official declaration: Claude in Chrome, or Claude’s built-in browser.

Which documents to gather, pillar 3a, TOU, your assessment: our guides explain the basics, with the official links.

Six steps

1. 1

   Download Taxpresso

   One free file, taxpresso-version.mcpb, from the project’s releases page.

   Download Taxpresso

2. 2

   Install it

   Open Claude Desktop, then double-click the file. Claude Desktop shows Taxpresso and its tools: click Install. If nothing happens, open Settings, then Extensions, and drag the file onto that page.

   TaxpressoYour Geneva tax return, on your computer.Install
3. 3

   Keep your folder

   Claude Desktop suggests a folder for your tax documents, Documents/Taxpresso. Keep it: your answers and documents stay there, on your computer. Make sure Taxpresso is switched on.

4. 4

   Say hello

   Open a new chat and write the sentence below. The first time, Claude asks for your permission to use Taxpresso: allow it.

   Help me with my Geneva taxes.

5. 5

   Answer and add your documents

   Claude asks a few simple questions, one at a time. To answer by clicking or to drop in your documents, ask Claude to open your dashboard.

6. 6

   File

   When everything is ready, Claude fills in the official online declaration in Claude in Chrome or its built-in browser. You sign in, check it and press Transmettre yourself.

• Your settings

  Nothing leaves your computer except what you share with Claude. In Claude’s settings, under Privacy, you decide whether your chats may help improve Claude. Delete them once your return is done.

• Before 31 December

  Ask Claude what a pillar 3a payment would save you this year. A rough salary is enough.

• Updating

  To install a new version, remove Taxpresso under Settings, Extensions, then install the new file. Your folder stays as it is.

• Something wrong?

  Something not working as it should? Tell us, and never include real tax data.