Your Clients' Internal Audit Teams Just Cut Admin Time by 70% — Here's What That Benchmark Means for Your Firm

On March 10, 2026, Diligent debuted AuditAI at the IIA Global Audit Management conference — an agentic AI platform for internal audit teams that reduces audit administration time from approximately 120 hours per engagement to 35.

That's 70%.

The tool itself — an enterprise platform for corporate internal audit departments — is not for small CPA firms. The pricing, the target customer, the rollout path: none of it is aimed at a 10-person accounting practice.

But the benchmark is absolutely yours to worry about.

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What Diligent AuditAI Actually Does

AuditAI automates the coordination work that consumes most of the time in an audit cycle:

• Audit planning — AI drafts the audit plan based on prior-year data, risk indicators, and control mapping, rather than building it manually.
• Evidence collection — The system generates and tracks audit request lists, follows up automatically on outstanding items, and organizes incoming documentation.
• Risk-to-control mapping — AI maps identified risks to relevant controls across the organization, flagging gaps without manual cross-referencing.
• Early warning monitoring — The platform monitors for signals — transactions, compliance deviations, threshold breaches — between formal audit cycles.

Early adopters: 120 hours of manual coordination compressed to 35. For a team running multiple simultaneous audits, that efficiency change is structural, not incremental.

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Why This Matters for Small CPA Firms

Here's the dynamic most small firm owners underestimate: it's not whether you're using the same tools. It's whether your speed and capacity match the expectations being set by the clients you serve.

Your corporate clients — the ones whose financial statements you review, whose books you audit, whose systems you assess — are the same organizations that are deploying tools like AuditAI internally. When their internal audit teams start running on AI-accelerated timelines, they're not going to lower their expectations for external reviewers and auditors. They're going to raise them.

The firm that turns around audit documentation in 6 weeks when a client's internal team is now processing in 2 weeks isn't just slow — they're creating friction in the client's workflow. Friction that more efficient competitors can eliminate.

This is how AI disrupts small CPA audit practices: not by replacing auditors, but by resetting the pace expectations of the organizations they serve.

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The Three Points of Admin Friction Worth Measuring

You don't need Diligent to reduce your audit admin time by 70%. You need to find the three biggest coordination bottlenecks in your current process and apply AI-assisted tools to them.

1. Evidence collection and request management

Most of the time in a small firm audit cycle is consumed tracking what's been requested, what's been received, what's outstanding, and what needs follow-up. This is coordination work — emails, reminders, tracking spreadsheets.

Tools that compress this at small firm scale: Karbon's client workflow management with AI-suggested follow-ups, or even a simple AI-assisted tracking template in Excel that auto-generates client request language. The goal isn't a perfect system. It's reducing the 40 hours of email follow-up to 12.

2. Work paper documentation and narrative drafting

Audit work paper documentation — the narrative descriptions of procedures, findings, and conclusions — takes significant time to draft and format consistently. This is high-value-judgment work that requires a CPA, but the drafting layer is increasingly AI-delegatable.

General AI tools (Claude, ChatGPT) can produce first-draft audit narratives, management letter templates, and procedure documentation from rough notes or bullet-pointed findings. The CPA reviews, edits, and finalizes. The time-per-procedure drops significantly.

3. Risk assessment and control gap identification

AI-assisted risk assessment tools for small CPA firms are available through Caseware and CPA-focused software add-ons. If your firm is still building risk matrices manually from prior-year workpapers, that's a clear automation target.

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The Benchmark Number to Track

70% reduction in audit admin time is the headline. But the more useful number for small firm owners: what does your current hours-per-audit-engagement look like, and what's your target?

If you don't track this, start now. Run one engagement deliberately — log the time spent on coordination, documentation, and tracking separately from the time spent on judgment work. Then identify which piece is largest.

That's the piece to automate first. Not because Diligent set the benchmark. Because your clients' organizations are operating against that benchmark now, and the expectations are moving toward you.

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One Action for This Week

Pick one currently active audit or review engagement. For the next documentation deliverable — a management letter, a work paper section, a findings summary — draft it using an AI tool first, then revise it.

Time it. Compare to your normal drafting time.

If the first attempt saves you 30 minutes on a single document, multiply that across your annual audit work. That's the efficiency gap you're working with — and the gap your competitors who have already started will compound over the next 18 months.

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Sources: Diligent AuditAI press release, BusinessWire, March 10, 2026 | CPA Practice Advisor, March 11, 2026

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Related reading:

• PwC Expects End-to-End AI Audit Automation by Year-End — 3 Moves for Small CPA Firms
• The AI Workflows That Actually Stick: Six CAS Categories for Accounting Firms
• AICPA Survey: 88% of Accounting Firms See AI as Transformative — Less Than 8% Are Prepared
• The iManage 2026 Benchmark: 85% Piloting AI, Only 17% Fully Integrated