GST Registration in Mumbai

The need to register for GST depends on a Mumbai business’s turnover, activities, and type of supply. In Maharashtra, the general threshold is ₹40 lakh for businesses exclusively supplying goods and ₹20 lakh for service providers, subject to applicable conditions and exceptions.

1. Businesses Crossing the Turnover Threshold

A business in Mumbai may need GST registration when its aggregate turnover crosses the applicable threshold. This can apply to retailers and wholesalers in areas such as Masjid Bunder, Crawford Market, and South Mumbai, as well as service businesses in BKC, Andheri, and Lower Parel.

2. Businesses Making Inter-State Supplies

A Mumbai business making inter-State taxable supplies of goods generally needs GST registration regardless of turnover, subject to limited exceptions. Service providers making inter-State supplies are exempt from compulsory registration until their aggregate turnover crosses ₹20 lakh. This can be relevant for Mumbai-based manufacturers, traders, consultants, IT companies, and other service providers.

3. E-Commerce and Online Businesses

Mumbai-based sellers supplying goods through e-commerce platforms generally need GST registration. Sellers making only intra-State supplies within Maharashtra may be exempt if their turnover is below the threshold and they meet the prescribed conditions, including obtaining an enrollment number. Suppliers of services through e-commerce platforms are generally exempt until the threshold is crossed, except for services where the e-commerce operator pays tax under Section 9(5).

4. Businesses Covered by Compulsory Registration

Certain businesses may require GST registration even when their turnover is below the general threshold. The requirement depends on the nature of the supply and specific provisions under GST law. Businesses should check their activities before relying only on the turnover limit.

5. Voluntary GST Registration

A Mumbai business below the applicable threshold can also opt for voluntary GST registration. After registration, it becomes liable to comply with the applicable GST provisions, including return filing and record maintenance.

Here is how to get a GST number in Mumbai through GST registration online. The process involves submitting business details, address documents, authentication, and other required information. For businesses in BKC, Andheri, Powai, or Lower Parel, the correct business address and GST jurisdiction must be entered.

The GST registration process in Mumbai generally involves these steps:

• Step 1. Check the Registration Requirement: Check turnover, type of supply, inter-State transactions, e-commerce activities, and other applicable GST provisions.
• Step 2. Start the GST Application: Select New Registration on the GST Portal. Enter the PAN, mobile number, email address, and Maharashtra as the State. After verification, a Temporary Reference Number (TRN) is generated.
• Step 3. Enter Business Details: Use the TRN to complete the application. Add the business constitution, promoter or partner details, authorized signatory, principal place of business, and goods or services supplied.
• Step 4. Add Mumbai Business Address: Enter the principal business address and upload the applicable ownership or occupancy documents. The GST jurisdiction depends on the address and PIN code. Your GST Mumbai jurisdiction, whether a state or central officer, is assigned based on this PIN code.
• Step 5. Complete Aadhaar Authentication: Complete Aadhaar authentication where applicable. Depending on the application and risk parameters, OTP-based authentication or biometric verification at a designated GST Suvidha Kendra may be required.
• Step 6. Verify and Submit: Review and submit the application after completing the required verification. An Application Reference Number (ARN) is generated to track its status.
• Step 7. Respond to Queries, if Any: If the officer issues a notice in Form GST REG-03 requesting clarification or additional documents, submit your reply through Form GST REG-04 within the prescribed time. After receiving the clarification, the officer generally has 7 working days to process the application under Rule 9(3).
• Step 8. Complete Any Further Verification: Under Rule 25 of the CGST Rules, 2017, the officer may visit the premises, photograph the site, check signage and document consistency, and upload findings in Form GST REG-30. In specified cases, registration may take up to 30 days under Rule 9(1), read with Rule 25.
• Step 9. Receive GSTIN: Once approved, the business receives its GST Identification Number (GSTIN) and registration certificate in Form GST REG-06. If the officer takes no action within the applicable statutory timeline, the application may be deemed approved under Rule 9(5).

Timeline for GST Registration in Mumbai

A complete application that meets the applicable conditions is generally processed within 7 working days under Rule 9(1) of the CGST Rules, 2017. Applicants identified as low-risk may get registration within 3 working days under Rule 9A. From 1 November 2025, small businesses whose monthly output tax liability on B2B supplies does not exceed ₹2.5 lakh can opt for the simplified scheme under Rule 14A, which grants registration within 3 working days after successful Aadhaar authentication. Applications requiring clarification or physical verification may take longer.

The documents required for GST registration depend on the business structure and the premises used in Mumbai. A company operating from a rented office in BKC may need different premises documents from a retailer in Andheri or a warehouse in Masjid Bunder.

Common documents may include:

• PAN: PAN of the business or proprietor, as applicable.
• Business Constitution Proof: Certificate of Incorporation (COI), Partnership Deed, LLP Agreement, Trust Deed, or other applicable documents.
• Promoter, Partner, or Director Details: PAN, Aadhaar, photographs, and other required details, as applicable.
• Authorized Signatory Details: PAN, Aadhaar, photograph, and proof of appointment, such as a letter of authorization or board resolution, where applicable.
• Principal Place of Business Proof: Electricity bill mentioning the electricity provider’s name, property tax receipt, municipal record, rent or lease agreement, consent letter, or government-issued address proof, as applicable.
• Additional Place of Business Proof: Similar documents may be required for additional offices, shops, factories, or warehouses in Mumbai or elsewhere in Maharashtra.
• Goods or Services Details: Provide details of the goods or services supplied, including applicable HSN codes or SACs. The GSTIN issued for a Maharashtra registration includes State Code 27.

Note: Under Section 55 of the Maharashtra Rent Control Act, 1999, leave and license agreements must be written and registered, including 11-month agreements. Stamp duty depends on the agreement terms and applicable provisions of the Maharashtra Stamp Act, 1958.

The GST Portal charges no government fee. GST registration charges in Mumbai are professional fees only. RegisterKaro’s GST registration starts at ₹499, covering document review, filing, and application tracking.

The professional fee can vary based on the business structure, documentation, verification requirements, and level of assistance required. Indicative market ranges are:

These are indicative professional charges and can vary between service providers. Additional services such as GST return filing, bookkeeping, GST amendments, or ongoing compliance may be charged separately.

Mumbai businesses can track their registration application online through the GST Portal. The process is:

• Use the ARN: Enter the ARN generated after submitting the GST registration application.
• Open Track Application Status: On the GST Portal, go to Services → Registration → Track Application Status and select the relevant registration application.
• Check the Current Status: The portal displays the current stage of the application, such as processing or pending for clarification.
• Respond to Clarification: If a tax officer issues a clarification notice, submit the required information or documents through the GST Portal within the prescribed time.
• Check Approval: Once approved, the business can access its GSTIN and registration certificate through the GST Portal.

In most cases, you don’t need to visit the physical office as GST registration is handled online for Mumbai applications and across India. Mumbai’s GST offices handle physical verification, notices, and other queries for registered taxpayers.

Your Principal Place of Business (PPOB) decides your jurisdictional ward or range. Whether your GSTIN is assigned to the State or the Central tax administration is decided separately by the GST system’s allocation process. You can see which one you’re under on your registration certificate.

GST registration can help Mumbai businesses manage obligations and support regular business transactions. The benefits depend on the business activity and applicable GST provisions.

• Claim Eligible Input Tax Credit: A registered business can claim eligible ITC on business purchases, subject to the prescribed conditions. This can be useful for Mumbai traders, manufacturers, and service businesses with regular GST-bearing expenses.
• Issue GST Tax Invoices: GST registration allows businesses to issue tax invoices showing the applicable GST. This is particularly relevant for B2B businesses operating from commercial hubs such as BKC, Andheri, and Lower Parel.
• Support Inter-State Supplies: Registered businesses can comply with GST requirements for eligible supplies to customers in other States. This can benefit Mumbai-based traders, manufacturers, IT companies, and service providers serving clients outside Maharashtra.
• Meet Customer and Vendor Requirements: Corporate customers and vendors may require a GSTIN for B2B transactions and tax documentation. This can be relevant for businesses working with financial institutions, IT companies, and other enterprises in Mumbai's commercial districts.
• Maintain GST Records: Registration brings applicable return filing and record-keeping requirements. Proper records help businesses track sales, purchases, tax liability, and eligible ITC.
• Support E-Commerce Operations: GST compliance can support businesses selling through online platforms where registration is required under applicable provisions. Mumbai-based D2C brands and online sellers should check the rules applicable to their type of supply.