Real Agent Cases

Home › Personal › Task

AI for taxes and tax returns: 15 real cases with prompts

15 source-checked cases of people using AI to prepare, check and file tax returns and spot tax mistakes. Each shows what happened and the prompt.

Part of all 383 Personal cases.

  • Find out a spouse's Tax ID could be got for free in a minute instead of paying an agent 10k with ChatGPTRecreated promptEvidence: Described by posterBeginner-friendly

    Mr Jasper's spouse needed a Tax ID, and the agent they contacted quoted 10k and asked for the spouse's NIN to process it the next day. Mr Jasper asked ChatGPT about it and how long it takes, and found it was something they could do themselves in a few minutes. They opened the official portal with the spouse's NIN and the Tax ID was ready in less than one minute, saving the 10k fee.

    ChatGPT · Personal · Source date:

  • Prepare and file a property tax grievance on deadline day, between meetings, with Claude Cowork (partial)Evidence: Described by posterPartial

    Wes Pomeroy's town assessment had nearly doubled since they bought the house eight or nine years earlier, and they realised the last day to challenge it was that day. Using Claude Cowork connected to Gmail, Google Drive and Chrome, they first asked about the official rules and deadline, which turned up that a mailed form wouldn't count: it had to be handed in in person by 9 PM. Claude found an old broker appraisal, the assessor's email about a renovation and the addition's square footage, and cut a weak argument about crime risk that had no data behind it. It filled the official form, drafted a cover letter, built a comparison page and a labelled photo exhibit and merged them into one file. Pomeroy says the first pass was about 65% right and corrected it several times. Both owners signed and the packet was stamped at the assessor's office before the deadline. The post doesn't give a result yet.

    Claude Cowork · Personal · Source date:

  • Estimate the year's federal, state and local tax still due from a folder of tax documents with Claude Cowork, before the accountant reportsEvidence: Described by poster

    Anthony Garcia's taxes had got complicated enough that Garcia hired an accountant, who was still a month and a half away from giving the full picture. Garcia copied all the tax files, some electronic PDFs and some scans of paper copies, into one folder, pointed Claude Cowork at it and asked for an estimate of the 2025 taxes due. Claude read all of them. In 30 minutes it produced a summary table of tax liability, amount withheld and balance due, with a thorough breakdown that referred to boxes on the tax forms.

    Claude Cowork · Personal · Source date:

  • Have ChatGPT double-check a draft tax return against source documents before filingRecreated promptEvidence: Described by poster

    Facing a draft 2025 tax return saying he owed $117,360 more, a poster asked ChatGPT (the Astra model) to do a secondary review, tying every number to source documents in his email and files. It ran for 90 minutes and produced a 15 page report saying he was due a $191,173 refund; he says his accountant reviewed it line by line and agreed. He adds that the AI couldn't have done the return from scratch and he still needs his accountant.

    ChatGPT · Personal · Source date:

  • Spot a fake IRS letter as a scam by checking it with ChatGPTRecreated promptEvidence: Described by posterBeginner-friendly

    When a letter claiming to be from the IRS arrived, Sara Wilbur's mother suspected a scam, checked it with ChatGPT and was right. Wilbur, who had encouraged her to trust her instincts, watch for red flags and use ChatGPT, shared it as an example of fraud awareness working.

    ChatGPT · Personal · Source date:

  • File an Indian income tax return with ChatGPT as a cross-checker (it got some capital gains wrong)Recreated promptEvidence: Described by posterPartial

    A filer in India used ChatGPT, with documents in a Project, as his main assistant for his income tax return. He says it was good at flagging common pitfalls and asking for supporting documents, and most valuable for checking calculations across documents. But it gave confident wrong guidance on REIT dividends and sales, misclassified some short- and long-term capital gains even with broker reports, and sometimes got totals wrong; he had to verify every important number. He'd still use it next year.

    ChatGPT · Personal · Source date:

  • A tax deduction strategy from ChatGPT that would have cost a business owner: an accountant's storyRecreated promptEvidence: Described by posterFailure

    An accountant says a client came in convinced ChatGPT had found a deduction strategy saving her $40,000 in taxes. He says the deduction category was misapplied for her business entity and the strategy relied on a rule changed by recent guidance; they caught it and filed correctly.

    ChatGPT · Personal · Source date:

  • Double-check a CPA-prepared draft tax return with ChatGPT and Claude and find two errors worth $2,686Recreated promptEvidence: Described by poster

    Before filing, Katie Kormanik ran a CPA-prepared draft tax return and all of their 2025 tax documents through both ChatGPT and Claude. Both found the same two errors, which once corrected will save them $2,686.

    ChatGPT, Claude · Personal · Source date:

  • Sort a year of bank transactions for a freelancer's tax filing with Gemini, Claude and LumoRecreated promptEvidence: Article or interviewPartial

    XDA's Megan Ellis, a freelancer who files taxes three times a year, gave the same bank and credit-card exports and prompts to the free plans of Lumo, Gemini and Claude. Lumo missed a month of medication payments and about a third of the income. Gemini made no obvious errors and came within $100 of the manual income total. Claude hit its usage limit within two prompts at peak times but was the only one to match the manually filtered income total. Ellis still plans to do most of the taxes by hand.

    Gemini, Claude, Lumo · Personal · Source date:

  • Find extra tax refund money with Grok's helpRecreated promptEvidence: Described by poster

    A poster says he asked Grok to help with his taxes and it helped him get around $1,500 more on his tax return, adding that it also helped him learn about taxes he was never taught.

    Grok · Personal · Source date:

More taxes cases