Use Claude Projects to Build a Tax Filing System

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How to file your 2026 taxes with Claude: File 1: tax-profile .md (Your tax identity) 1. Create a Google doc called "TAX-PROFILE" 2. Add your filing status, state, and dependents. 3. List income sources (W-2, freelance, dividends) 4. List deductions you've claimed in past years. 5. Add last year's refund or amount owed. 6. Save it as a .md file format. File 2: The Tax Checklist 7. Go to Claude → Projects → Create "2026 Taxes" 8. Upload your tax-profile .md. 9. Prompt: "I'm [filing status] in [state] with [income types]. Build me a checklist." 10. Add every document from that checklist. 11. Every new chat in that Project remembers it all. File 3: Connectors (Claude inside your tools) 12. Settings → Connectors → Connect Drive + Gmail 13. Stop downloading and re-uploading. 14. Open Cowork. Point it at your tax folder. 14. Prompt: "Create a TurboTax-ready import table with all my income, deductions, and credits. Include the IRS form and line number for each item." 15. It exports a real .xlsx and .pdf into your folder. 16. Paste it into TurboTax. Done. I made over 100+ infographics like this. If you want to download all of them, just: 1. Go to https://t.co/psB7XxAv8w. 2. Then enter your work email. 3. It will ask you to pay or not. Don't pay. 4. Wait 2 min. Then open the welcoming email. 5. Click on my Notion library with everything in it. Disclaimer: you will be subscribed to my newsletter. It's free, and always will be. Some people pay only to join my community & get answers faster. 500,000+ readers enjoy it twice a week. To always stay ahead of the AI curve. To master AI, before it masters you. ♻️ Repost to help one person file smarter this year.

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Organize your annual tax documents in a Claude Project so every chat session has your full financial context automatically.

Example(text)

File 1: tax-profile .md (Your tax identity)

1. Create a Google doc called "TAX-PROFILE"
2. Add your filing status, state, and dependents.
3. List income sources (W-2, freelance, dividends)
4. List deductions you've claimed in past years.
5. Add last year's refund or amount owed.
6. Save it as a .md file format.

File 2: The Tax Checklist

7. Go to Claude → Projects → Create "2026 Taxes" 
8. Upload your tax-profile .md. 
9. Prompt: "I'm [filing status] in [state] with [income types]. Build me a checklist." 
10. Add every document from that checklist.
11. Every new chat in that Project remembers it all.

File 3: Connectors (Claude inside your tools)

12. Settings → Connectors → Connect Drive + Gmail
13. Stop downloading and re-uploading.
14. Open Cowork. Point it at your tax folder.
15. Prompt: "Create a TurboTax-ready import table with all my income, deductions, and credits. Include the IRS form and line number for each item."
16. It exports a real .xlsx and .pdf into your folder.
17. Paste it into TurboTax. Done.

Why it works

Claude Projects maintain persistent context across conversations, meaning your tax profile and uploaded documents remain available in every new chat session without re-uploading. This removes the biggest friction point in using AI for ongoing, multi-document tasks: having to re-explain your situation each time. The structured .md profile acts as a single source of truth that the model can reference when generating checklists, answering questions, or producing output tables. By encoding your filing status, income types, and prior-year data in one place, you ensure Claude's responses are specific to your situation rather than generic. The final prompt — asking for a TurboTax-ready import table with IRS form and line numbers — is precise enough to produce directly usable output rather than general advice. Specifying the output format (.xlsx/.pdf) and the downstream use (TurboTax import) constrains the model to structure its response as a working artifact, not an explanation.

When to use

•You have multiple income sources (W-2, freelance, dividends) and need to track many document types across the tax season
•You want to generate a personalized tax document checklist rather than relying on generic IRS guidance
•You need a structured table of income/deductions with IRS form references that can be pasted directly into tax software

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