AI for Tax Preparers in 2026: Organizers, Source Docs and Notices

For a tax preparer in 2026, AI can send and track organizers, read W-2s, 1099s and K-1s into your tax software, sort what clients upload, draft notice responses and keep client email moving. It can't sign a return, replace your due diligence, or decide what a client's facts mean. And every AI tool that sees return information falls under the same data rules as your tax software.

This page is for enrolled agents, CPAs who prepare returns, seasonal preparers and small tax offices. It follows the tax year rather than a feature list: where the hours go between January and October, which kinds of AI tools handle each part today, the IRS and FTC rules on client data that decide how you can use them, and what to set up before the 2027 filing season opens.

Where a tax practice's hours go

Preparing the return is the part clients see; most of the hours sit around it. The US Labor Department's O*NET profile for tax preparers lists interviewing clients for information on income and deductions, reviewing financial records to decide which forms a return needs, checking totals on forms others prepared, consulting handbooks for unusual returns, setting fees by complexity and scheduling appointments. O*NET counts 95,800 tax preparers in 2025, at a median wage of $26.40 an hour.

Spread over a year, the admin looks like this:

• January: organizers and engagement letters. Sending last year's clients an organizer, a questionnaire and a document list, then waiting.
• February to March: the paper chase. Brokerage statements that arrive corrected, a K-1 from a partnership that won't issue until March, photos of a 1098 taken at an angle, and the same client asking whether you got their W-2.
• Data entry and review. Keying source documents into the return, then checking another preparer's input before it goes out.
• Signatures and e-file. Form 8879 authorizations, bank details for refunds or payments, and rejected returns to fix and resend.
• April: extension triage. Deciding who gets a Form 4868, what each of them should pay now, and writing to every one of them.
• May to December: IRS letters. CP2000s and other notices that clients forward weeks after they arrived, often with the response date close.
• All year: security. Your written security plan, staff logins, and phishing aimed at your EFIN and PTIN.

What AI does in a tax office today, task by task

AI is most mature in two parts of tax work: collecting and reading source documents, and drafting the writing around a return. Below, each piece of the season sits next to a type of tool, with vendors linked to their own descriptions.

Organizers that chase themselves

Collecting documents is where the season is won or lost, and the organizer tools now do part of the chasing. SafeSend's Gather lets a client sign the engagement letter, answer the questionnaire, fill in the organizer and upload documents in a single request; Gather AI runs document recognition on PDFs and images. Two limits worth knowing before you buy: SafeSend says Gather supports 1040 organizers but not entity organizers yet, and it works with CCH Axcess, ProSystem fx, UltraTax CS, Lacerte and GoSystem Tax RS. Gather comes in SafeSend's Premium package or as a separate Gather Essential package; SafeSend doesn't publish prices.

If your clients already use a portal, check what it does with uploads. TaxDome added AI in August 2024 that tags and renames client uploads, turning a phone photo's file name into one that says the year, form and payer. That spares you opening every file in February just to learn which form it is.

Scan-and-populate: fewer keystrokes, same review

Scan-and-populate tools read source documents straight into the return, which is where the keying hours of February go. Thomson Reuters says its 1040SCAN reads workpapers, sorts and bookmarks them into an index that follows the return, and exports the data to your tax software. It claims the product removes the need to verify OCR data for 65% of standard documents; that's the vendor's figure, and Thomson Reuters' own help page on service types says firms must verify OCR-captured amounts on the PRO+ version. Pricing is by quote.

Newer platforms bundle extraction with preparation. One of them, Instead lists document extraction from K-1s, W-2s and 1099s, return preparation for 1040, 1120, 1120-S, 1065 and 1041, and e-file. Its pricing page says the platform and filing are free and that you buy credits for the agent's work, at a rate that depends on volume.

Whatever reads the documents, the reviewer's job doesn't shrink as much as the keying does. A corrected 1099-B that arrives after you've entered the original, a K-1 with a state schedule the scanner skipped, a W-2 box 12 code read as the wrong letter: those are still caught by a person who knows the client.

Notices and research

A CP2000 is the IRS saying the income it received from employers, banks and brokers doesn't match the return, and the reply is due by the date printed on the notice. You can upload the response with the IRS document upload tool, fax it or mail it. AI tools speed up the first draft: TaxGPT lists a Tax Writer that drafts IRS notice responses, client emails and engagement letters, plus document analysis of returns and notices, and Instead lists notice resolution and installment plans. TaxGPT's pricing page offers Pro, Pro Plus and Enterprise plans quoted after a demo.

A draft takes seconds; the judgment doesn't. Matching the notice's line items to the client's 1099s, deciding whether the cost basis was simply missing, and choosing to agree, partly agree or disagree are your work, and a fluent draft can make a wrong position look settled.

Client tax information and AI: the rules that apply

Before any AI tool touches a client's return information, four sets of rules apply: Section 7216 on disclosure, the FTC Safeguards Rule on security, Circular 230 on diligence, and your own e-file and PTIN obligations. None of them was written about AI, and all of them cover it.

• Section 7216 and consent. The IRS's Section 7216 FAQ defines tax return information broadly: everything you get from the client or anyone else to prepare the return, including worksheets and IRS correspondence. Disclosing it beyond the listed exceptions needs the taxpayer's written consent, signed and dated, with the mandatory language from Rev. Proc. 2013-14; a consent with no stated period lasts one year. Disclosure to another preparer helping with the return generally needs no consent, unless that preparer is outside the United States. The criminal penalty is a fine of up to $1,000, up to a year in prison, or both, and Section 6713 adds a $250 civil penalty. Ask any AI vendor where your clients' data is processed and what it's used for, and get the answer in writing.
• The FTC Safeguards Rule and your WISP. The FTC names tax preparation firms among the businesses its Safeguards Rule covers. The Rule requires a Qualified Individual to run your security program, risk assessments, multi-factor authentication, encryption, oversight of service providers, and notice to the FTC within 30 days of discovering an event that affects 500 or more people's unencrypted information. The IRS repeated in August 2026 that federal law requires tax professionals to keep a Written Information Security Plan, and Publication 5708 is its template. An AI tool that holds client data is a service provider, so it belongs in the plan.
• Publication 4557. The IRS's Safeguarding Taxpayer Data guide is the practical companion to the Rule. Read it alongside your plan when you add any new software, AI or otherwise.
• Circular 230 diligence. Circular 230 sets the conduct rules for practice before the IRS. Section 10.22 requires due diligence on returns and on what you tell clients, and presumes you were diligent in relying on someone else's work only if you used reasonable care in engaging, supervising and evaluating them. Section 10.34(d) lets you rely in good faith on information the client gives you but not ignore what looks wrong or incomplete. A scanned figure or an AI research answer gets the same scrutiny as a new hire's work.
• PTIN and e-file. Anyone paid to prepare federal returns needs a PTIN valid for the year; the fee is $18.75, and 2027 renewals are open now. Preparers who expect to file 11 or more individual, estate or trust returns in a year must e-file, and Form 8879 is the client's signature authorization for an e-filed return. No AI tool signs it or stands in for the PTIN holder.

Where Merlin fits in a tax practice

Merlin handles the client correspondence around the return, not the return. Installed on your Mac and linked to the office's Google mail and calendar, Merlin remembers every client: the documents they sent, the questions they asked, and each thing you said you'd handle. That's the part of tax season that lives in your inbox: "did you get my brokerage statement?", the partnership's bookkeeper promising the K-1 next week, a CP2000 forwarded in August.

Merlin doesn't prepare or review returns, scan source documents, e-file, collect Form 8879 signatures, run a client portal or answer the phone. Use the tax software and portal above for those. And because Merlin reads the email you connect, treat it like any other service provider in your WISP: Merlin's privacy page says information needed for a request may be sent to its services and AI providers, and that Merlin is SOC 2 compliant. Keep Social Security numbers and full returns in your portal, not in email, whichever assistant you use.

• Clients you haven't answered. In Merlin's People panel, a client's unanswered email to you stays flagged from day 2 to day 30, which is how the March "any update?" emails stop slipping under the pile of uploads.
• Extension letters you approve. Ask in Merlin's chat for an email telling a client you've filed their extension, that it doesn't extend the time to pay, and what you estimate they should send by April 15. You get the letter on a card, change any figure that's off, and it goes out only after you approve it.
• Context before a client interview. When a client interview is on the calendar, Merlin sends a Meeting Brief about ten minutes ahead, with your earlier emails with that client.
• Interview notes. Calls on your Mac can be recorded in Merlin, and paid plans add the transcript. A recorded tax interview contains return information, so tell the client, and decide in your WISP whether you'll keep recordings at all.
• A Monday summary. Set a routine for 8 a.m. every Monday in season and it lists the client emails still waiting on you. Once switched on, a routine acts without checking with you, so keep the first one to summaries and no sending.

Two of Merlin's guides help in the off-season: setting a Gmail out-of-office reply for the week after April 15, and Gmail labels for keeping notice correspondence apart from organizer email. If you record client interviews, our comparison of meeting recorders covers the other options.

Before the 2027 filing season: five things to do now

Late October is the quiet window: extended returns are filed and the next season hasn't started. Use it to put AI in where it will matter in February.

1. Renew your PTIN for 2027 and turn on multi-factor authentication for your tax software, portal and email accounts if you haven't.
2. Update your WISP. List every AI tool that will see client data, where it processes that data, and who in the office may use it. Use Publication 5708 if you don't have a plan yet.
3. Check your engagement letter and consent forms. If a tool needs a Section 7216 consent, for example because it processes data outside the United States, add it before organizers go out, not after.
4. Run last season's messiest return through a scanning trial. Pick a client with a dozen 1099s and a K-1, compare the tool's export with your filed return line by line, and count the corrections.
5. Write your extension and missing-document emails now. Draft them once, with a chat assistant if you like, and keep them ready for the week of April 15, 2027.