What has shipped in TACT.
Newest first. Everything on this page is in the product today.
2026
October
Latest- Audit trail
The audit trail now leaves the product. When an engagement locks, TACT files the full trail into your SharePoint as a PDF and an Excel workbook, next to the lockdown report.
- Security
A security release, with tighter checks on sign-in and on who can reach an engagement.
2026
September
- Team
Add your whole team in one go from your firm’s Microsoft directory.
- Security
Guest accounts and addresses outside your firm’s domain can no longer be added to a team.
2026
August
- Lock
The 60 day lock. Record the date the Tax Audit Report was signed and TACT locks the engagement at the end of the 60th day.
- Setup
Guided firm setup, which connects your SharePoint site in a few steps.
- Team
An Admin role for the firm, with a warning when an engagement is left without a Partner.
- Security
A session left idle for an hour is signed out.
2026
July
- Sign-in
Sign in with your Microsoft work account.
- Files
Workpapers move into the firm’s own SharePoint.
- Clauses
Work programmes for all 44 clauses of Form 3CD.
See it on a real audit file.
The demo opens without an account.