It depends on the field you are changing. A non-core GST registration amendment is auto-approved after a successful filing and does not require tax-official processing. A core amendment requires a tax official to decide the application. The taxpayer files FORM GST REG-14; the officer’s amendment order is FORM GST REG-15.
The GST Portal gives different time guidance for the two routes. For a non-core amendment, it says the acknowledgement is sent within the next 15 minutes. That is an acknowledgement-delivery target, not a promise that a core amendment will be approved in 15 minutes. For a core amendment, the portal’s follow-up point is 15 working days after submission, excluding Saturdays, Sundays and public holidays. If the application is still undisposed after that period, use the portal’s contact route to identify and approach the jurisdictional officer.
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Core and non-core amendments: the decision that determines approval
Before checking a clock or contacting an officer, identify whether the proposed change is core or non-core. The GST Portal defines non-core fields as fields other than core fields. It gives authorised-signatory and stakeholder details as examples of non-core information. A change to the business address cannot be filed through the non-core route, so it must be treated as a core amendment for the purposes of approval and follow-up.
| Question | Non-core amendment | Core amendment |
|---|---|---|
| Does a tax official have to approve it? | No. The portal says a successfully filed non-core amendment is auto-approved. | Yes. The portal says a core amendment requires tax-official approval. |
| What time guidance does the portal give? | An acknowledgement is sent within the next 15 minutes. This is not a decision-time guarantee for core amendments. | The portal calculates a 15-working-day due date and advises follow-up if the application is still undisposed after that point. |
| What happens when the business address changes? | The address cannot be amended through the non-core application. | Use the core-amendment process and wait for tax-official disposal. |
| Which forms identify the filing and decision? | The portal filing is followed by automatic approval after successful submission. | The taxpayer’s application is FORM GST REG-14 and the officer’s order is FORM GST REG-15. |
What counts as a non-core change
Non-core changes are the fields that the portal treats as outside the core registration particulars. The portal’s examples include authorised-signatory and stakeholder details. Once a non-core filing is successfully submitted, the portal says it is auto-approved rather than placed in a tax official’s processing queue.
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What counts as a core change
A core change is a field for which the tax authority must make a decision. The business-address example is especially important: selecting a non-core path for an address change is not an alternative approval shortcut. The address change belongs in the core-amendment workflow.
Why classification matters
Classification controls the expected status, the relevant time calculation, the documents that evidence the decision and whether a fresh registration certificate is generated. Treating a core amendment like a non-core filing can lead you to mistake an acknowledgement or an unchanged certificate for a final decision.
What approval looks like for a core amendment
For a core amendment, the taxpayer submits FORM GST REG-14. A tax official then examines and disposes of the application. The officer’s decision is recorded in FORM GST REG-15, which the GST Portal makes available on the dashboard after approval or rejection.
Approval and rejection are different outcomes from acknowledgement. An acknowledgement confirms that the portal received the filing; it does not by itself show that a tax official approved a core field. Keep the application reference number (ARN) from the filing because it is the identifier used for status tracking and for a follow-up.
Non-core approval is automatic, not officer-mediated
For a non-core amendment, the portal says successful filing triggers auto-approval. There is no tax-official processing step to wait for. The portal’s stated “next 15 minutes” period concerns delivery of the amendment acknowledgement. If the filing succeeds, the automatic route is the approval mechanism.
How long does a GST amendment take?
Non-core: acknowledgement within 15 minutes
The GST Portal’s non-core guidance says the amendment acknowledgement is sent within the next 15 minutes. Read that statement narrowly: it addresses when the acknowledgement should arrive after filing. It does not establish an average processing time, and it does not mean a core amendment will be approved within 15 minutes.
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If the acknowledgement has not arrived, first confirm that the filing completed successfully and that you are checking the registered contact details and portal account associated with the registration. Do not use the 15-minute acknowledgement statement as a deadline for contacting a tax official about a core application.
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Core: 15 working days as the follow-up point
For a core amendment, the GST Portal’s known-issues guidance calculates the due date as 15 days after the submission date, excluding Saturdays, Sundays and public holidays. This is a procedural due-date calculation and a point at which to follow up if the application has not been disposed of. It is not a published average processing time and is not a promise that every application will receive a decision by the end of the fifteenth working day.
Count only the working days described by the portal. A Saturday, Sunday or public holiday does not count in that calculation. Retain the submission date and ARN so you can explain exactly which application has crossed the stated follow-up point.
Why no reliable “average” can be quoted
The official guidance provides the 15-working-day follow-up instruction but does not provide a measured average processing time or a guarantee of disposal within that period. Any estimate beyond those instructions would be more precise than the published evidence supports.
Checking an amendment’s status
The GST Portal’s registration-amendment status-tracking service uses the ARN to show where an application stands. Use it when you need to distinguish a received filing from a decision.
- Sign in to the GST Portal using the account connected to the registration.
- Open the registration-amendment status-tracking service.
- Enter the ARN for the amendment application and submit the search.
- Read the status shown for that ARN. The portal defines “Pending for Processing” as an application awaiting a decision by the concerned tax official.
- Save or record the displayed status and the date you checked it, especially when the application is approaching or has passed the 15-working-day follow-up point.
What “Pending for Processing” means
“Pending for Processing” is not an approval. It means the application is awaiting a decision by the concerned tax official. For a core amendment, that status is consistent with the application still being in the officer’s queue. It does not establish that the application was rejected, and it does not convert the amendment into a non-core filing.
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When a status changes to an outcome
After approval or rejection, the portal sends SMS and email notifications. For a core amendment, the related REG-15 order is available on the dashboard. Check both the notification and the dashboard order rather than relying only on a message preview.
What to do when a core amendment is still pending
If a core amendment has not been disposed of after the portal’s 15-working-day calculation, use the GST Portal’s contact facility to identify the jurisdictional officer. The portal’s route is:
- Open Dashboard.
- Select Services.
- Select User Services.
- Select Contact.
- Look up the jurisdictional officer for the registration and follow up with the ARN and submission details.
The portal’s instruction is to contact the jurisdictional officer when the application has not been disposed of even after 15 working days. The contact route is therefore the appropriate escalation step for an unresolved core ARN after that point, not a request to treat the filing as automatically approved.
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Information to have ready for the follow-up
- The ARN for the amendment application.
- The submission date used for the 15-working-day calculation.
- The exact field changed, such as the business address.
- A screenshot or record of the current “Pending for Processing” status.
- Any acknowledgement and the registered email or mobile number associated with the application.
Providing these details lets the jurisdictional office identify the correct application without confusing it with another amendment or a separate registration service.
Notifications, REG-15 and the revised certificate
SMS and email notices
The known-issues guidance says the portal sends SMS and email notifications after approval or rejection. Keep access to the registered mobile number and email address while the application is pending. A missing message should not be treated as proof that no decision exists; check the dashboard and status service using the ARN.
Finding the officer’s order
For an approved or rejected core amendment, the REG-15 order is available on the dashboard. The order is the portal record of the officer’s amendment decision. Download or retain it with the ARN and the filing acknowledgement for your records.
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Downloading the latest registration certificate
To retrieve the latest certificate, sign in and go to Services > User Services > View/Download Certificates. When more than one certificate appears, check the issue date to identify the latest version.
The portal says a fresh certificate is generated for approved core-field amendments. Non-core changes do not become part of the registration certificate, so a non-core amendment should not be expected to produce a refreshed certificate showing those details.
Deemed-approval wording on a certificate
If a certificate does not show approving-authority details, check whether it states that it was issued on deemed approval. The portal says a certificate issued on deemed approval may omit those authority details. That omission is different from an unresolved core application: use the ARN status and, for a core filing, the REG-15 order to establish the decision record.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Portal restrictions that can affect what you see
A pending core amendment can affect the non-core screen
The portal warns that proposed core changes may not be reflected in the non-core application while the core ARN is awaiting tax-authority approval. If a non-core screen does not show the proposed core information during that period, do not assume that the core change was lost or approved. Check the core ARN’s status and wait for the officer’s disposal.
Rule 14A withdrawal applications block non-core filing
A pending application to withdraw from registration under Rule 14A, identified as REG-32, prevents filing a non-core amendment according to the portal guidance. Resolve or account for that pending application before treating the non-core route as available.
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The registration certificate reflects approved core-field amendments, while non-core changes do not become part of the certificate. Use the amendment filing, status record and notifications for the complete history of a non-core update instead of expecting every changed field to appear on the certificate.
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A practical decision path for common situations
You changed an authorised signatory or stakeholder detail
These are examples the portal gives for non-core information. Submit through the non-core amendment route. After successful filing, the portal says the amendment is auto-approved and the acknowledgement should be sent within the next 15 minutes. The absence of a new certificate is not, by itself, evidence of failure because non-core changes do not become part of the registration certificate.
You changed the business address
Do not use the non-core route. The portal says a business-address change cannot be filed as a non-core amendment. Submit it as a core amendment, retain the ARN, monitor the status service and expect a tax-official decision rather than automatic approval.
Your core ARN says “Pending for Processing”
The status means the application is awaiting a decision by the concerned tax official. Record the submission date and count 15 working days excluding Saturdays, Sundays and public holidays. If it remains undisposed after that point, use Dashboard > Services > User Services > Contact to find the jurisdictional officer.
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You received a rejection notice
Check the SMS or email notification and open the REG-15 order on the dashboard. The order is the officer’s recorded amendment decision. Keep it with the ARN so you can determine what the portal has formally decided before taking any further registration action.
You cannot find the expected certificate
Open Services > User Services > View/Download Certificates and check the issue date when multiple certificates are listed. A fresh certificate is associated with approved core-field amendments; non-core changes are not added to the certificate. If a certificate lacks approving-authority details, check for wording that it was issued on deemed approval.
Common mistakes to avoid
- Calling every amendment an approval case: first classify the field. Non-core filings are auto-approved after successful submission; core filings require an officer’s decision.
- Treating 15 minutes as a core-processing SLA: the 15-minute statement concerns non-core acknowledgement delivery.
- Counting calendar days for a core application: the portal’s 15-day calculation excludes Saturdays, Sundays and public holidays.
- Assuming 15 working days guarantees approval: it is the stated follow-up point when an application remains undisposed, not a guaranteed decision time.
- Using the non-core route for an address: the portal specifically excludes business-address changes from that route.
- Waiting indefinitely without checking the ARN: use the status-tracking service and escalate through the jurisdictional-officer contact route after the stated period.
- Expecting every amendment on the certificate: non-core changes do not become part of the registration certificate.
- Ignoring a pending REG-32 application: a pending Rule 14A withdrawal application prevents filing a non-core amendment.
Record-keeping checklist
Keep a simple file for each amendment so the status and follow-up history are clear:
- Copy of the submitted amendment and the ARN.
- Submission date and the working-day count for a core application.
- Acknowledgement message and any attachments submitted through the portal.
- Status checks showing whether the ARN is “Pending for Processing” or has reached an outcome.
- SMS and email decision notices.
- REG-15 order for a core amendment.
- Latest certificate downloaded through Services > User Services > View/Download Certificates, with its issue date.
- Details of the jurisdictional officer contacted and the date of follow-up if the ARN remained undisposed after 15 working days.
The answer in one sentence
A GST registration amendment requires tax-official approval only when it is a core amendment; non-core changes are auto-approved after successful filing, while a core application should be tracked by ARN and followed up with the jurisdictional officer if it remains undisposed after 15 working days calculated without weekends and public holidays.
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