🚨 7 Working Day Deadline

How to Reply REG-17 GST Cancellation Notice — 2026 Guide

Received a REG-17 show cause notice proposing cancellation of your GST registration? You have 7 working days to reply in FORM REG-18. Here is a complete step-by-step guide to save your registration.

📅 Updated July 2026 ⏱ 6 min read ✅ Section 29 | CGST Act 2017
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Important: If you do not reply to REG-17 within 7 working days, your GST registration will be cancelled in FORM REG-19 — this stops you from issuing valid tax invoices and can disrupt your business immediately. Always reply on time.

What is REG-17 Notice?

REG-17 is a show cause notice for cancellation of GST registration, issued under Section 29 of the CGST Act, 2017 read with Rule 22 of the CGST Rules, 2017. It is one of the most urgent notices a business can receive — if unanswered, it directly results in loss of GST registration.

The officer commonly issues REG-17 when they find:

📋 Key Facts About REG-17

ParameterDetails
Legal BasisSection 29, CGST Act 2017 read with Rule 22
Issued ByGST Officer (jurisdictional proper officer)
Reply FormatFORM GST REG-18 (filed on GST portal)
Reply Deadline7 working days from notice date
If SatisfiedProceedings dropped in FORM GST REG-20
If Not Satisfied / No ReplyRegistration cancelled in FORM GST REG-19

How to Reply REG-17 — Step by Step

1

Identify the exact ground for cancellation

REG-17 will state the specific reason — non-filing, non-operational business, or other Section 29 grounds. Your reply strategy depends entirely on which ground applies.

2

File all pending returns immediately

If non-filing is the ground, file every pending GSTR-1 and GSTR-3B with applicable late fees and interest before submitting your reply — this is the single most persuasive thing you can do.

3

Gather proof of business operation

Collect recent invoices, purchase orders, bank statements showing business transactions, and — if useful — a CA certificate confirming the business is active.

4

Draft your reply citing Section 29 and Rule 22

Address the exact ground raised, explain the reason for any lapse (illness, technical issues, natural disaster), and undertake to remain fully compliant going forward.

5

Submit FORM REG-18 within 7 working days

File on GST Portal → Services → Registration → Application for Filing Clarifications (against the REG-17 reference), attach your documents, and submit before the deadline.

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Key Legal Provisions for REG-17 Reply

Frequently Asked Questions — REG-17

What is REG-17 notice in GST?
REG-17 is a show cause notice issued under Section 29 of the CGST Act 2017 read with Rule 22, proposing cancellation of your GST registration. It is commonly issued for non-filing of returns for a continuous period, or when the business is found non-operational.
How many days to reply to REG-17?
You must reply within 7 working days from the date of the REG-17 notice, by filing FORM GST REG-18 on the GST portal.
What is FORM REG-18?
FORM GST REG-18 is the official reply format to a REG-17 cancellation show cause notice. It is filed on the GST portal explaining why the registration should not be cancelled.
What happens if I don't reply to REG-17?
If you do not reply within 7 working days, or the officer is not satisfied, your GST registration will be cancelled in FORM GST REG-19. If satisfied, the officer drops the proceedings in FORM GST REG-20.
REG-17 kya hota hai? (Hindi)
REG-17 ek show cause notice hai jo GST officer Section 29 ke tahat bhejta hai jab wo aapki registration cancel karna chahte hain — usually returns na file karne ya business inactive hone ki wajah se. Iska jawab 7 working days mein FORM REG-18 mein dena hota hai.

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