Government Fee for New GST Registration: ₹0
The government does not charge any fee for a new GST registration, for any business type. There is nothing to pay on gst.gov.in when you apply, and the registration does not need renewal.
If a CA, tax consultant or agent files it for you, they charge a professional fee; the tool above shows the usual range. The real cost of a mistake is time: a missing rent agreement or unclear address proof is the most common reason for a clarification notice, so match your documents to the checklist above.