Tax Return Review for Corporate Tax Managers

Cut tax return review time by 5% for Corporate Tax Managers.

The Problem

Senior reviewers spend hours tick-and-tying Corporate Tax returns against source documents and prior year — and small-dollar variances still slip through into partner review.

What We Build

AI reconciles each line of the return against source docs in Thomson Reuters ONESOURCE and the prior year, explains variances over 5%, and produces a review workpaper the senior can sign off on — cutting review time in half.

Tools & Integrations

Thomson Reuters ONESOURCE CCH Axcess Corptax Alteryx Zapier

How It Works

1

Discovery Call

We map your current tax return review process and identify exactly where AI saves the most time.

2

Build & Integrate

We build the AI workflow and connect it to the tools you already use — no software changes required.

3

Review & Refine

You review the results, we fine-tune until the workflow matches your standards — then it runs on autopilot.

Frequently asked

How long does tax return review take manually for corporate tax managers?+

In most corporate tax firms, tax return review consumes hours per matter or per week that AI can absorb. The exact savings depend on volume, but firms with mature workflows typically see 5% improvement within the first quarter after deployment.

Can AI handle tax return review without losing accuracy?+

Yes — every workflow uses human-in-the-loop. AI does the deterministic 80% (data extraction, classification, routing); your corporate tax manager keeps every judgment call. Nothing ships without a defined approval point.

Will this require switching from Thomson Reuters ONESOURCE?+

No. The automation runs on top of your existing Thomson Reuters ONESOURCE setup using its API or agent integration — no migration, no parallel system, no license changes. Your team keeps using Thomson Reuters ONESOURCE exactly as before.

How quickly can a corporate tax manager team deploy this?+

Most engagements ship the first working workflow in 2–4 weeks from kickoff: discovery call → fixed-price scope → build → review/refine. After that it runs on autopilot, with us monitoring for drift.

Is tax return review automation worth it for a small corporate tax firm?+

If your corporate tax managers spend 5+ hours per week on tax return review, the ROI is clear. The build pays back inside the first quarter at that volume — and the time savings compound, since the workflow keeps running once deployed.

What happens when Thomson Reuters ONESOURCE or our process changes?+

Workflows are versioned and monitored. When Thomson Reuters ONESOURCE pushes API changes or your firm changes process, we update the workflow within days — no rebuild required.

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Ready to automate tax return review?

Book a free 30-minute call. We'll walk through your current process and show you exactly how this workflow would work for your team.

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