Introducing the New Statutory Calculation Engine
19 Feb 2026
As openHR continues to grow, we’re committed to keeping payroll fast, accurate, and resilient. With the start of the new tax year, we’ve upgraded all users to our new Statutory Calculation Engine.
Why the change?
- Much faster: Calculations now run 50% faster, so payslips generate with less waiting time.
- Smarter handling of negatives: No more errors when UIF or tax base amounts dip below zero - the engine now handles these cases gracefully.
- Better tax directive support: The dreaded tax directives are now automatically calculated with improved accuracy, reducing manual intervention.
Tested at scale
This engine has been tested on over 4,000 payslips, covering all known edge‑case scenarios. While payroll is complex and there may still be rare bugs, we’ve built in strong monitoring:
- Server errors → our development team is notified immediately via email.
- Critical calculation issues → the system automatically sends WhatsApp alerts to the team for instant response.
What this means for you
For most users, the transition will be seamless - you’ll simply notice faster, smoother payroll runs. Behind the scenes, the new engine ensures that statutory calculations are more robust and future‑proof. Users that joined openHR after the 8th of February 2026 have already been enjoying the new improved engine.
