Regulatory freshness
GST policy version
GST rates are maintained as reviewed application data with explicit dates and official source references.
GST general headline rates · unclassified calculator
- Stable policy ID
- gst-general-rates-2025-09-22-v1
- Effective from
- 22 September 2025
- Last verified
- 8 August 2026
- Review due
- 4 February 2027
Current presets
- 5% · current headline rate — effective 22 September 2025. A source-backed headline choice; classification and eligibility are not assessed.
- 18% · current headline rate — effective 22 September 2025. A source-backed headline choice; classification and eligibility are not assessed.
Update safeguards
A stale review produces a visible review-due warning; it never changes the arithmetic or silently fetches new rates. Policy updates require a reviewed source record, explicit effective dates, validation tests, updated examples and a code/content review.