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Track every K-1 and 1099 and prep for a CPA with a Claude Cowork project

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Become my trusted tax and financial planning resource. I'll add my brokerage statements and tax documents to this project. Build a list of every K-1 and 1099 I'm still waiting for, flag anything that affects this year's taxes, plan my quarterly estimated payments and draft emails to my CPA and financial advisor.

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Before you start, ask me 1–3 short questions about the details below and wait for my answers. Once I've answered, confirm the plan in one line and run the whole task start to finish.

Goal: Organize my tax documents into a clear package for my CPA, with what's missing, what's changed and what I want them to double-check.

Questions to ask me first:
- Which accounts and investments do you have (brokerage, K-1s, retirement, rental, other)?
- Which tax year, and when does your CPA need documents?
- Any big events this year (sales, deferred gains, new income)?

Inputs (fill in or confirm):
- Statements and tax forms: [DOCUMENTS]
- Account list with nicknames: [ACCOUNTS]
- CPA and advisor deadlines: [DEADLINES]
- Last year's return, if helpful: [PRIOR RETURN]

Rules:
- Build a tracker of every expected tax form, marked received or outstanding, with the issuer.
- Flag events that may create tax, such as deferred gains coming due, and quote the document line.
- Sketch quarterly estimated payments as a starting point for my CPA, not a final number.
- Don't give final tax advice; write questions for my CPA instead.

Checkpoint: Show me the form tracker first and wait for me to confirm the account list is complete.

If you get stuck: If a document is unclear or missing, list it as a question for my CPA.

Verify before you finish: Check that every account has its expected forms listed and every flag cites a document.

Output: A form tracker, a list of flagged items with sources, an estimated-payment sketch and draft emails to my CPA and advisor.

Done when: My CPA has one organized package showing what's in, what's missing and what to double-check.

AI tool

Claude Cowork

Outcome

Brett Chereskin, whose finances had grown to multiple brokerage accounts, K-1 investments and an Opportunity Zone investment, set up a dedicated Project in Claude's Cowork mode as a tax and financial planning resource and fed it documents. Claude read a hundred-page brokerage statement and built a tracking list of every outstanding K-1 and 1099 in two minutes, caught a deferred gain on the Opportunity Zone investment that triggers a significant tax event at the end of 2026, which Chereskin had missed, mapped out quarterly estimated payments, and drafted emails to the CPA and financial advisor. Chereskin sent the CPA an organized package instead of a pile of PDFs, and before a doctor's visit used Claude to turn lab-result trends into questions, not to self-diagnose.

Evidence: Described by posterThe person describes what happened in words, without screenshots or video.

Source

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by Brett Chereskin (personal blog)
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https://www.brettchereskin.com/blog/ai-is-making-me-a-better-client

Context: Chereskin runs an operations and AI consulting business and still relies on a CPA, an advisor and a doctor. Claude's tax flags were sent to the CPA to confirm, not filed as is.

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