CA
MCAFiling Editorial & CA Team
Qualified Chartered Accountants & Company Secretaries · Updated Jun 2026 · 6-8 min read
What is GST Letter of Authorisation?
GST Letter of Authorisation is a statutory compliance/filing under CGST Act, 2017. It is filed through form Authorisation Letter with the relevant authority.
Our qualified CA/CS team handles the entire process — documentation, drafting, professional certification (where required), filing on the government portal, and follow-up until completion. The typical timeline is 1-2 working days from receiving complete documents.
Quick facts
| Governing Act | CGST Act, 2017 |
| Form Reference | Authorisation Letter |
| Filing Authority | Relevant statutory authority (MCA / GST / IT Dept. / state portal) |
| Typical Timeline | 1-2 working days |
| Professional Fee | ₹499 onwards |
| Government Fee | At actuals, payable separately |
Who needs this filing?
- Businesses for which GST Letter of Authorisation is statutorily applicable
- Companies needing professional assistance with documentation and filing
- First-time filers wanting end-to-end CA support
Step-by-step process
Free consultation
Brief call to understand your specific situation and confirm GST Letter of Authorisation is the right filing for you.
Document collection
We share a checklist of documents needed. You share them via secure upload.
Drafting & preparation
Our team drafts the form, supporting declarations and any board resolutions required.
Review & signing
You review the draft. We obtain digital signatures and certifications where required.
Filing on portal
We file on the relevant government portal (MCA / GST / Income Tax / state portal as applicable) and pay the government fee.
Acknowledgment & tracking
We send you the acknowledgment, track the application, and respond to any queries until completion.
Documents required
- Identity proof (PAN, Aadhaar) of authorised signatory
- Business proof (CoI / Partnership Deed / GST Certificate, as applicable)
- Address proof
- Specific documents per the Authorisation Letter requirement (we share a checklist)
- Digital Signature Certificate (where applicable)
Detailed fees breakdown
| Item | Amount |
|---|
| Professional fee (MCAFiling) | ₹499 |
| Government fee | At actuals (varies by case) |
| Stamp duty / Notary (if applicable) | At actuals |
Note: Government fees vary by state and are payable separately at actuals. Stamp duty depends on registered office state. Professional fees shown are indicative.
Key advantages
- Statutory compliance — avoid penalties and disqualifications
- Done by qualified CA/CS — accuracy and completeness
- End-to-end handling — no portal navigation needed
- Transparent fees — no hidden charges
What happens after this filing?
Once GST Letter of Authorisation is complete, the following ongoing compliances apply:
- Maintain acknowledgment and supporting documents for statutory records
- Follow continuing compliances applicable to your business
- Update relevant filings if circumstances change
Frequently asked questions
What is GST Letter of Authorisation?
GST Letter of Authorisation is a statutory filing/registration under CGST Act, 2017. Form: Authorisation Letter. We assist with documentation, drafting and end-to-end filing — typically completed in 1-2 working days.
What is the cost of GST Letter of Authorisation?
Our professional fee starts from ₹499. Government fees and stamp duty (if any) are payable separately at actuals.
How long does GST Letter of Authorisation take?
Typically 1-2 working days from receiving complete documents. Delays can happen if authority raises queries or additional documents are required.
Is GST Letter of Authorisation mandatory?
Whether GST Letter of Authorisation is mandatory depends on your business circumstances. Our team will assess your case in a free consultation and advise on applicability and timelines.
Can the filing be done online?
Yes. GST Letter of Authorisation is filed online through the relevant government portal. We handle the entire process end-to-end with documentation, drafting and follow-up.
Disclaimer: This page is for general informational purposes only. Tax rates, government fees and compliance requirements may change. Form references (e.g. Authorisation Letter) are statutory form identifiers used to describe the filing we assist with. MCAFiling.in is a private professional services platform and is
not affiliated with the Ministry of Corporate Affairs or the Government of India. Official portal:
mca.gov.in.