This blog post provides a comprehensive guide to the upcoming GST rate changes in India, effective 22 September 2025, focusing specifically on the implications for Input Tax Credit (ITC) on stock. It explains the new simplified tax slab structure (5%, 18%, 40% for luxury goods) and details how businesses should handle ITC for stock purchased before the changes, supplies made after the changes, and unsold old inventory. The post offers practical advice on identifying stock, claiming eligible ITC, reversing ITC where necessary, seeking manufacturer support, and maintaining audit-ready records to navigate this significant tax transition effectively.