Best AI tax prep platforms for accounting firms (2026)

Disclosure: Filed makes one of the platforms on this list. We have tried to keep this comparison fair by scoring every tool, Filed included, against the same published criteria, and by being specific about where Filed is weaker than the others. The scoring below reflects publicly available information as of June 2026, not an independent lab test. Where a number comes from a vendor, we say so.

TL;DR. There is no single best AI tax prep platform for every firm, and any roundup that crowns one is selling you something. For mid-market and higher-volume firms that want to keep their existing tax software, the strongest options are Filed (broadest engine and practice-management coverage, plus a review and advisory layer), SurePrep (the proven incumbent if you already live in the Thomson Reuters stack), and Black Ore (an autopilot model aimed at larger firms). For small firms, Juno and Soraban publish transparent per-return pricing and deploy fast. Accrual is the choice if you are willing to replace your whole stack. One caveat applies to all of them: every accuracy and time-savings number on their websites is vendor-reported, and none has been independently benchmarked.

The market for AI tax prep has filled up fast, and most of the 'best of' lists ranking these tools were written by people who have never closed a return. This one is built for firms running 2,000 to 15,000 returns a year who are trying to tell a real difference from a marketing claim. We disclose up front that Filed is one of the tools here. We also score it against the same criteria as everything else, and we tell you where it loses.

The comparison at a glance

Date-stamped June 2026. This category moves fast, so check vendor sites for current details. All stats are vendor-claimed unless noted. Here is where each platform fits.

• Filed: best for larger and higher-volume firms. Prep, review, and advisory across six engines (Drake, ProConnect, CCH Axcess, UltraTax, Lacerte, with GoSystem in beta), with no rip-and-replace. Demo pricing with a 60-day guarantee. SOC 2 Type II and IRS Section 7216.
• SurePrep (Thomson Reuters): best for firms already in the Thomson Reuters and UltraTax stack. OCR scan-and-populate plus workpapers, no advisory, on UltraTax, GoSystem, CCH Axcess, and Lacerte. Demo pricing. Enterprise compliance as a TR-owned product.
• Black Ore: best for large firms that want autopilot. Autonomous prep and review on ATX, CCH, Drake, Intuit, and UltraTax, with 1040 live today. Demo pricing, no published rate. States SOC 2 compliance.
• Accrual: best for Top-50 firms ready to migrate. AI-native prep and review, rip-and-replace, CCH Axcess confirmed with more on request. Demo pricing. Compliance not published.
• Juno: best for small-to-mid firms. Prep, review, and advisory on Drake, Lacerte, ProConnect, and CCH Axcess. Transparent pricing, roughly $45 per return into the low $30s at volume. Compliance not published.
• Soraban: best for intake and delivery. Intake and delivery automation, with data entry in beta, on Drake, UltraTax, Lacerte, and CCH Axcess. Transparent pricing at $25, $20, or $40 per return. SOC 2 Type II and NIST IAL2.

How we evaluated these platforms

We are a tax-AI company, so the honest thing to do is tell you exactly how we scored, then let you weigh the criteria yourself. We did not run these tools through a private lab. We read every vendor's product pages, pricing, and documentation, cross-checked their claims against accounting press and independent reviews, and scored each platform on six things that actually determine whether a tool works for a mid-market firm.

The six criteria, and why they matter:

• Integration breadth. How many tax engines and practice-management systems it works with, and whether you have to replace your stack. Most firms run more than one engine.
• Workflow coverage. Whether it handles intake, prep, review, and advisory, or just one slice.
• Deployment friction. How long until a preparer gets value. Same-day versus a multi-month migration is a real difference, especially because firms will not migrate during busy season.
• Pricing transparency. Whether you can find out what it costs without a sales call.
• Compliance posture. What the vendor publishes about SOC 2, IRS Section 7216, and data handling.
• Evidence quality. How specific and verifiable the vendor's claims are. A published benchmark is worth more than a homepage percentage.

We score each from 1 (limited) to 5 (strong). We are not adding the scores into a single ranking, on purpose. The 'best' tool depends on which of these six matter most to your firm, and a composite score would just hide our thumb on the scale. The scores, criterion by criterion:

• Integration breadth: Filed 5 (highest). Black Ore 4. SurePrep, Juno, and Soraban 3. Accrual 2.
• Workflow coverage: Filed 5 (highest). Juno 4. SurePrep, Black Ore, and Accrual 3. Soraban 2.
• Deployment friction: Filed, Juno, and Soraban 4 (highest). SurePrep and Black Ore 3. Accrual 1.
• Pricing transparency: Juno and Soraban 5 (highest). Filed and SurePrep 2. Black Ore and Accrual 1.
• Compliance posture: Filed and Soraban 5 (highest). SurePrep 4. Black Ore and Accrual 3. Juno 2.
• Evidence quality: Filed, SurePrep, and Soraban 3 (highest). Black Ore, Accrual, and Juno 2.

Scores reflect publicly available information as of June 2026, not an independent lab test.

A few honest reads from our own scorecard: Filed scores well on coverage and compliance but loses on pricing transparency, because our pricing is demo-only and Juno's and Soraban's are not. SurePrep's strength is a two-decade installed base, not breadth. And every tool, ours included, sits at a 3 or below on evidence quality, for the reason in the next section.

The thing no vendor will tell you: marketed time is not real time

This is the most important section on the page, so we put it before the reviews.

Every platform here advertises a time-savings or accuracy number. Black Ore says 98% time savings and over 99% extraction accuracy. Accrual says over 85% less prep time and 100% extraction accuracy. Juno says 90% of data entry automated and 7 to 10 minutes per return. Soraban says 95 to 100% extraction accuracy. We say 64% shorter review cycles and 42 minutes saved per return.

Two facts you should hold onto.

First, none of these numbers has been independently benchmarked. There is no neutral test that put these tools through the same returns and measured the result. Every figure traces back to the vendor or to a customer the vendor selected.

Second, the headline 'minutes per return' almost always describes the automated extraction step, not the full cycle. A tool can populate a draft in seven minutes and still leave a preparer and a reviewer an hour of work to get that return to the point of signing. The marketed number is the fast part. The slow part, the review, is where the real time goes, and almost nobody publishes it.

A platform that will run a pilot on your actual returns is telling you something a percentage on a homepage cannot.

So when you evaluate any tool on this list, ours included, ask two questions. Does this number describe extraction or the whole return? And can the vendor show it to you on your own returns, in a pilot, rather than on a slide?

The platforms

Each review below is written to stand on its own. Strengths, limits, and the firm it fits.

Filed: best for larger, higher-volume firms

Filed reads the source documents, the W-2s, 1099s, K-1s, brokerage statements, and prior-year returns, compares them line by line against the prepared return, and surfaces cited discrepancies the native diagnostics miss. The usual entry point is the review stage, because it deploys against whatever your existing prep produced on any engine, which makes it the lowest-friction way in. From there it scales to what higher-volume firms need: batch processing across large return counts, a season-long pilot rather than a day-one bet, and Prowork, a browser and tax-software plugin that extends Filed from review into the wider workflow. It also includes Tax Planner, which evaluates planning strategies and produces client-ready output with citations.

Best for: mid-market and larger firms running multiple tax engines that want to keep their existing software.

Strengths: the broadest engine list here (Drake, ProConnect, CCH Axcess, UltraTax, Lacerte, with GoSystem in beta); embedded across five practice-management platforms (Karbon, Canopy, TaxDome, Financial Cents, Truss); document-first checking that validates numbers against the documents, not just that the math is internally consistent; the strongest published compliance posture in this group (SOC 2 Type II, IRS Section 7216, US-based processing, no shared model training).

Limits, honestly: we are newer than SurePrep's twenty-year installed base; our pricing is demo-only, so Juno and Soraban beat us on transparency; the deepest value compounds over a season rather than landing entirely on day one.

Proof points: 64% shorter review cycles and 42 minutes saved per return for firms using the review stage, and 94% line-by-line accuracy on the public TaxCalcBench benchmark (a lenient metric, and still short of where a return needs to be, which is why professional review stays in the loop).

Pricing: demo, with a 60-day money-back guarantee.

SurePrep (Thomson Reuters): best for firms already in the Thomson Reuters stack

SurePrep is the incumbent. 1040SCAN scans and populates source documents, SPbinder organizes the workpapers, and TaxCaddy handles client document gathering. It is the tool a large 1040 shop has probably already standardized on, and Thomson Reuters has been bundling it tighter with the rest of its stack, including the SafeSend acquisition in January 2026. The technology is OCR scan-and-populate rather than the newer AI-native approach, which shows in what it does well (high-volume document handling at scale) and what it does not (it organizes and populates, it does not review the return for truth or generate advisory work).

Best for: firms already running UltraTax or GoSystem who want a proven, at-scale workflow inside Thomson Reuters.

Strengths: a two-decade installed base; proven at high volume; the TaxCaddy client portal; deep integration across the TR ecosystem.

Limits: OCR-rooted rather than AI-native; effectively tied to the Thomson Reuters world (no Drake or ProConnect); no advisory layer; enterprise pricing and a dated interface.

Stats: the company says 1040SCAN auto-verifies data on about 65% of standard documents.

Pricing: not public. Contact sales.

Black Ore: best for large firms that want an autopilot model

Black Ore's Tax Autopilot aims to take a return from document intake through extraction and anomaly review to a package ready for human signature, with as little manual touch as possible. It reached general availability in April 2026 after a selective early-access period, and it is backed by a deep investor list (a16z, Founders Fund, General Catalyst, Khosla, and others). The pitch is autonomy, which is the opposite philosophy from the document-first, reviewer-driven approach, and which firm you are depends on whether you want the AI to drive or to assist.

Best for: larger firms and PE-backed platforms comfortable with an autonomous prep model.

Strengths: broad engine support (ATX, CCH, Drake, Intuit, UltraTax); aggressive automation; serious funding and engineering depth.

Limits: 1040 is live, but 1041, 1065, and K-1 work are still listed as coming; mid-market pricing is not published; the headline claims (98% time savings, over 99% extraction accuracy) are the most aggressive in this group, which is reason to ask for a pilot rather than take the slide.

Pricing: not public. The company cites '80% lower cost per return' without publishing a rate.

Accrual: best for Top-50 firms ready to replace their stack

Accrual launched in February 2026 with a $75M Series A led by General Catalyst and a founding team out of Stripe. It is an AI-native platform whose agents act as a preparer across federal and state forms, and it positions explicitly against OCR. The important word is platform: Accrual is a rip-and-replace, which means the upside is a single unified system and the cost is a migration. Named users include H&R Block, Armanino, and Creative Planning, which tells you the segment it is built for.

Best for: Top-50 firms and complex-engagement shops willing to migrate off their current tools.

Strengths: strong engineering pedigree; AI-native interpretation rather than template matching; large claimed reductions in prep and review time.

Limits: rip-and-replace means a multi-month migration, and firms will not do that during busy season; confirmed engine support is narrow (CCH Axcess, with more on request); no advisory module is stated; '100% extraction accuracy' is an absolute claim no vendor can really stand behind without an independent test.

Stats: the company says prep time falls more than 85% and review time up to 60%.

Pricing: not public.

Juno: best for small-to-mid firms, especially on TaxDome

Juno is the most transparent platform here, which counts for a lot. It is CPA-founded, automates around 90% of data entry, keeps a human in the loop, and publishes its pricing. Modules cover preparation, a binder, review, and advisory, and it integrates cleanly with TaxDome, which is where many of its customers already work. It raised a $12M seed in April 2026 and reports around 500 firms. The honest framing is that Juno is built for small and small-to-mid firms; it is not aimed at the higher-volume, multi-engine firm, and that focus is a feature for the firms it fits.

Best for: solo and small-to-mid firms that want transparent per-return pricing and a fast start.

Strengths: published pricing and a real free trial; clean TaxDome integration; a genuine advisory module; CPA founder.

Limits: small-firm focus; no UltraTax or GoSystem; compliance posture is not published; independent reviews have found real per-return time higher than the marketed 7-to-10-minute figure, which is the marketed-versus-real gap in miniature.

Pricing: roughly $45 per return, dropping into the low $30s at higher volume, with a 100-return minimum and a 7-day free trial.

Soraban: best for intake and delivery automation

Soraban is the most focused tool on this list, and it is honest about it. Its strength is the front and back of the engagement: client intake and document collection, then delivery and e-signature. Its data-entry capability, Connect, is in beta and is the newest, least proven part. If your bottleneck is chasing clients for documents and getting signed returns back out the door, rather than the prep itself, Soraban is built for exactly that. It is YC-backed, raised around $12M led by Altos in 2025, and reports several seasons of operating history.

Best for: firms whose pain is intake and delivery, not the return itself.

Strengths: transparent published pricing; a white-labeled client experience; a strong published compliance posture (SOC 2 Type II, NIST IAL2 e-signature, no off-season data retention).

Limits: narrow scope by design (no real review layer, no advisory); the data-entry module is still in beta.

Stats: the company cites 30-plus admin hours saved per firm per month and 95 to 100% extraction accuracy.

Pricing: $25 per return for collection, $20 for delivery, $40 for both, with a 50-return minimum.

Honorable mentions

• CCH Axcess Expert AI (Wolters Kluwer): fast-shipping native AI, but it only works inside CCH Axcess. Useful if CCH is your only engine.
• Aiwyn: a full-platform play aimed at the Top 100 and 500, more workflow and billing than pure tax prep. The opposite of 'works with what you have'.
• TXF Intelligence (Taxfyle): an outsourcing-plus-AI hybrid with credit-based pricing.
• Abacus: a K-1 specialist that lives in Excel. A point solution for complex passthrough work, not a full platform.
• Magnetic: YC-backed and early, using vision-language models for unstructured documents. One to watch.
• TaxGPT and CPA Pilot: research and planning assistants, not prep platforms. Good for a different job.

How to choose

Match the tool to your firm, not to the loudest claim.

• You run multiple tax engines and want to keep them: Filed. Breadth and the no-rip-and-replace model are the whole point.
• You are deep in Thomson Reuters and want proven scale: SurePrep.
• You are a large firm comfortable with autonomy: Black Ore.
• You are a Top-50 firm and will commit to a migration: Accrual.
• You are a small or small-to-mid firm and want transparent pricing and a fast start: Juno.
• Your bottleneck is intake and delivery, not prep: Soraban.

And whatever your shortlist, insist on a pilot run on your own returns before you sign. Every vendor here will show you a number. The ones worth buying will show you that number on your files.

What AI tax prep actually costs

The market has settled into a band of roughly $20 to $40 per return for automated prep, where pricing is published at all. A fully loaded preparer costs somewhere around $60 to $80 an hour. So at $30 a return, a tool has to save roughly 25 to 30 minutes of human time just to cover its direct cost. That math is why the marketed-versus-real-time question matters so much: if the tool saves seven minutes of extraction but adds nothing to the review, the unit economics do not work, no matter how good the demo looked.

The benefits that actually justify the spend are usually the second-order ones. Fewer errors reaching the reviewer. More returns handled without adding headcount. Less burnout in a season that already burns people out. Those are harder to put on a slide than '90% faster', and they are where the real return is.

Frequently asked questions

What is the best AI tax prep software for accounting firms?

There is no single best one. For mid-market and higher-volume firms that want to keep their existing tax software, Filed offers the broadest engine coverage plus a review and advisory layer. Small firms often do better with Juno or Soraban, which publish transparent per-return pricing. Firms already standardized on Thomson Reuters tend to stay with SurePrep. The right answer depends on your firm size, your existing stack, and whether your bottleneck is prep, review, or intake.

What are the best AI tools for tax professionals?

It depends on the job. For preparing and reviewing returns, the platforms compared above (Filed, SurePrep, Black Ore, Accrual, Juno, and Soraban) are the main options. For tax research and writing, assistants like TaxGPT and CPA Pilot do a different job. For client intake and document collection, Soraban is purpose-built. Most firms end up using more than one, matched to where their time actually goes.

Can AI replace tax preparers?

No, and the credible vendors do not claim it can. Every platform on this list keeps a human in the loop. AI does the analytical and data-entry work so a preparer and reviewer can focus on judgment. Filed itself notes that returns still require professional review; the goal is to get a return closer to ready, not to remove the professional.

How accurate is AI tax preparation software?

Vendors claim accuracy figures from the mid-90s to over 99%, but none of these has been independently benchmarked, and most describe the document-extraction step rather than a finished return. Filed reports 94% line-by-line accuracy on the public TaxCalcBench benchmark, a lenient metric, which is exactly why professional review remains necessary. Treat any single accuracy number as a starting point for a pilot, not a guarantee.

What is the difference between AI tax prep and OCR scan-and-populate?

OCR tools like SurePrep's 1040SCAN read documents and populate fields using template matching, then a person verifies. AI-native tools interpret documents more flexibly, handle more document types and unstructured inputs, and some, like Filed, also check the populated return against the source documents for discrepancies. OCR organizes and enters; document-first AI also verifies.

How much does AI tax software cost?

Where pricing is published, it runs roughly $20 to $40 per return. Juno is around $45 dropping into the low $30s at volume; Soraban is $25 to $40 depending on modules. Filed, SurePrep, Black Ore, and Accrual price through a sales conversation rather than a published rate.

Does AI tax software work with Drake, UltraTax, and CCH Axcess?

It varies, and this is the question that should drive your shortlist. Filed supports all three plus ProConnect and Lacerte, with GoSystem in beta. Juno covers Drake, Lacerte, ProConnect, and CCH Axcess but not UltraTax. SurePrep is built around UltraTax and GoSystem. Accrual confirms CCH Axcess and adds others on request. Check your specific engines before you commit.

Methodology and sources

This comparison was compiled in June 2026 from each vendor's public product pages, pricing, and documentation, cross-referenced with accounting press (CPA Practice Advisor, Accounting Today) and independent reviews. Scores reflect publicly available information as of that date and the six criteria described above, not an independent lab test. Vendor-reported statistics are labeled as such. Filed makes one of the platforms reviewed; we scored it on the same criteria as the others and named its weaknesses alongside its strengths. We will update this page as the category changes, and it changes often.

Update log: v1, June 2026, initial publication.