File your German taxes with Claude Code from your phone
A developer filed his German tax return with Claude through Termius, an SSH app, on his iPhone.
Source
@dominikmartn on X · 2026-10-15
Written in our own words. Credit to the original author. Link checked 2026-10-22.
What they did
A developer filed his German tax return with Claude through Termius, an SSH app, on his iPhone.
Result (as claimed)
Filed from a hot tub, no laptop involved.
Tools they used
Cost: Claude Code: from $17/mo.
Set it up
Gather the documents
Collect statements, bills, invoices or tax documents for the period you want reviewed.
Ask for an audit, not actions
Have Claude Code list findings, amounts and suggested next steps before it does anything.
Approve each action
Approve cancellations, disputes or payments one at a time. Never give an agent open-ended access to move money.
Track the result
Record what changed and what you saved so you can check it next month. This is not financial advice.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: File your German taxes with Claude Code from your phone What the original author did: A developer filed his German tax return with Claude through Termius, an SSH app, on his iPhone. Reported result (as claimed by the author): Filed from a hot tub, no laptop involved. Source: https://x.com/dominikmartn/status/2110745438823268612 Tools they used: Claude Code, Termius, iPhone Category: Money Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: File your German taxes with Claude Code from your phone What the original author did: A developer filed his German tax return with Claude through Termius, an SSH app, on his iPhone. Reported result (as claimed by the author): Filed from a hot tub, no laptop involved. Source: https://x.com/dominikmartn/status/2110745438823268612 Tools they used: Claude Code, Termius, iPhone Category: Money Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: File your German taxes with Claude Code from your phone What the original author did: A developer filed his German tax return with Claude through Termius, an SSH app, on his iPhone. Reported result (as claimed by the author): Filed from a hot tub, no laptop involved. Source: https://x.com/dominikmartn/status/2110745438823268612 Tools they used: Claude Code, Termius, iPhone Category: Money Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
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Guides for this use case
How to control coding agents from your phone · How to vibe code an app with Claude Code · How to use AI agents for taxes, bills and budgets
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