Article · 15 min read
GST Compliance for Startups: ITC, IMS, Registration, Deadlines
Treelife Free Intermediate India
Most GST explainers stop at the 40 lakh / 20 lakh threshold. This one is written for founders who need to decide whether to register voluntarily before they are forced to, and it makes the B2B case concretely: a registered vendor can issue tax invoices so buyers claim input tax credit, and you recover GST paid on AWS, SaaS, and rent. It also covers the 2025 GSTR-2B mismatch reality, so you register with your eyes open on the filing burden.
- Mandatory registration is 40 lakh turnover for goods and 20 lakh for services in most states, but interstate supply and e-commerce force registration regardless of turnover.
- Register voluntarily early if you sell B2B: unregistered vendors force buyers to eat the tax, and you cannot reclaim input credit on tools, ads, or rent without registration.
- GST is an ongoing filing commitment, not a one-time step: ITC now depends on GSTR-2B auto-matching, so supplier compliance directly affects the credit you can claim.