For external audit

The operating system for assurance engagements.

Punchcard streamlines client requests, evidence collection, substantive testing, and workpaper preparation. The mechanical work runs on autopilot. Judgment stays where it belongs.

Where the time goes

Audit delay is mostly a workflow problem.

Client requests sprawl

Long PBC lists, vague instructions, and a blank upload box. Clients submit the wrong thing, and you find out three weeks in.

Manual testing eats the budget

Sample sizes that should take hours take days. Junior staff time goes to copy-paste instead of judgment.

Review can’t trust what it can’t see

Workpapers without traceable evidence force reviewers to re-do the work. Reviewability is the bottleneck.

How it flows

Every step is a punchcard.

From the first request to the signed workpaper — one system, one set of evidence, one review surface.

01

Send structured requests

Per-selection checklists tell the client exactly what evidence is needed and what fields will be extracted. Instant feedback on upload — flag a mismatched bank statement in 30 seconds, not three weeks.

See request workflow
02

Match selections to support

Match Agent ties the selection to the invoice to the receipt to the payment. Three-way matches at scale, with mismatches surfaced for review.

See Match Agent
03

Run substantive procedures

Co-audit and Test Agent execute your testing — extracting fields, comparing values, applying tolerances, citing the source on every cell. Plain English in, workpaper out.

See Co-audit
04

Review and export to Excel

Every cell carries a reasoning trace and a clickable citation. Validate, override, comment, sign off. Export standardized workpapers without leaving the spreadsheet.

See FSR

What firms are saying

Reviewable. Traceable. Faster.

Co-audit gives our auditors back the hours that don’t require professional judgment, so they can spend more time where the risk actually lives.

Steve Checketts

Partner, Richey May

Read the case study

Co-audit didn’t just make the work faster — it let us do work we wouldn’t have done at all.

Paige Bassoli

Associate, JLK Rosenberger

Read the case study

Built for review.

Every conclusion cites its source. Co-audit, Match Agent, Test Agent, and Financial Statement Review all produce inspectable workpapers — one click takes a reviewer to the exact page, the exact line, the exact paragraph the agent reasoned from.

Source-cited workpapersSOC 2 certifiedGDPR-aligned

Assurance, one punchcard at a time.

See Punchcard handle a real engagement. We'll walk through requests, testing, and review using your evidence — every judgment call still in human hands.

Trusted by RSM, Richey May, JLK Rosenberger, and more.