GST CMP-03 Filing Guide: Stock Details, Due Date & Online Process

Introduction

The GST Composition Scheme provides small businesses, traders, manufacturers, and restaurants with a simplified taxation mechanism and reduced compliance burden. However, taxpayers switching from the regular scheme to the composition scheme are required to furnish details of stock held on the day immediately preceding the date from which composition levy becomes effective.

These details are furnished through Form GST CMP-03. Filing CMP-03 is an important compliance requirement because it allows the GST department to verify the stock position and ensure a smooth transition into the composition scheme.

This guide explains everything about GST CMP-03 filing, including eligibility, due dates, stock details required, documents needed, and the difference between GST CMP-02 and CMP-03.

What Is GST CMP-03?

Form GST CMP-03 is a statement filed by taxpayers opting for the Composition Scheme to declare the stock held immediately before entering the scheme. It contains details of inputs, semi-finished goods, finished goods, and inward supplies received from registered and unregistered suppliers.

Purpose of GST CMP-03

The main objectives of filing CMP-03 are:

• Declaration of stock position.
• Compliance with Rule 3 of CGST Rules.
• Smooth migration to the composition scheme.
• Disclosure of inward supplies.
• Maintaining transparency under GST.

Legal Provision

Form GST CMP-03 is prescribed under Section 10 of the CGST Act, 2017, and Rule 3(4) of the CGST Rules, 2017.

Why Is CMP-03 Important?

The GST department uses the information furnished in CMP-03 to ensure that taxpayers shifting to the composition scheme comply with statutory requirements and maintain proper records of inventory.

Who Needs to File CMP-03?

Taxpayers who opt for the Composition Scheme and are required to declare stock details must furnish Form GST CMP-03.

Existing Taxpayers Switching to Composition: Businesses migrating from the regular GST scheme to the composition levy are generally required to furnish stock details through CMP-03.

Traders, Manufacturers, and Restaurants: Retail/wholesale traders, most manufacturers, and eligible restaurants opting for the composition scheme must provide stock information held before migration.

Who Is Not Required to File CMP-03?

• Newly Registered Taxpayers: Persons obtaining fresh registration and opting for composition at the time of registration generally do not need to file CMP-03.
• Existing Composition Dealers: Taxpayers already operating under the composition scheme and continuing in subsequent years are not required to submit CMP-03 again.
• Casual & Non-Resident Taxable Persons: These persons are not eligible for composition levy and therefore cannot file CMP-03.

Why Is GST CMP-03 Important? & Due Dates

Form GST CMP-03 plays a significant role in ensuring proper transition into the composition scheme. It fulfills statutory requirements, enables proper disclosure of inputs, semi-finished goods, and finished goods, ensures transparency, prevents future disputes, and facilitates seamless migration.

Due Date for Filing CMP-03

Form GST CMP-03 should be filed within the prescribed period after opting for the Composition Scheme.

General Due Date: CMP-03 is required to be filed within 90 days from the date on which composition levy becomes applicable, unless extended through notifications.

Why Timely Filing Is Important: Timely filing ensures compliance with GST provisions, avoidance of notices and penalties, smooth operation under the composition scheme, and proper inventory reporting.

Documents Required for CMP-03 Filing

Although no physical documents are uploaded with the form, taxpayers should keep supporting records ready for accurate reporting.

Document Checklist

• ✓ GSTIN
• ✓ GST Portal Login Credentials
• ✓ Purchase Register
• ✓ Stock Register
• ✓ Invoice Details
• ✓ Supplier Information
• ✓ HSN Details (Recommended)
• ✓ DSC (if applicable)
• ✓ Authorized Signatory Details

Purchase Register & Invoice Details: Helps identify inward supplies from registered and unregistered suppliers, necessary for reconciling stock. To ensure accuracy, consult the GST E-Ledger.

Stock Register: Inventory records provide details of inputs, semi-finished goods, and finished goods.

Stock Details Required in CMP-03

Taxpayers must provide comprehensive information regarding inventory held immediately before opting for the composition scheme.

Inputs: Raw materials and goods held for consumption or further processing.
Semi-Finished & Finished Goods: Items partially manufactured or products ready for sale as on the date preceding migration.
Inward Supplies: Details of purchases made from registered and unregistered suppliers.

GST CMP-02 vs GST CMP-03

CMP-02 and CMP-03 serve different purposes under the composition scheme.

CMP-02 is used to exercise the option to shift to the composition scheme. CMP-03 is used to furnish inventory details and inward supplies after opting for composition levy.

Step-by-Step Guide to File GST CMP-03 on GST Portal

Form GST CMP-03 is filed electronically on the GST Portal after opting for the Composition Scheme. Taxpayers are required to provide stock details in the prescribed format and upload the data through a JSON file. Following the correct procedure helps ensure smooth filing and avoids validation errors.

You can also reference the GST CMP-03 User Manual for screenshot assistance.

1. Step 1: Login to GST Portal - Visit the GST Portal and log in using Username and Password. Select the appropriate GSTIN.
2. Step 2: Navigate to Services - Go to Services → Registration → Stock Intimation for Composition Levy. This option opens Form GST CMP-03.
3. Step 3: Download the Excel Template - Download the Excel template provided by the portal to enter stock details (Inputs, Semi-finished, Finished, and Purchases).
4. Step 4: Enter Stock Details - Fill the template carefully. (Ensure you check your calculations. If you need help with numbers, use the GST Calculator). Provide description, quantity, taxable value, and supplier details.
5. Step 5: Generate JSON File - Validate data and generate the JSON file from the Excel template.
6. Step 6: Upload JSON File - Upload the generated JSON file into Form GST CMP-03. Correct any errors if detected automatically.
7. Step 7: Verify Details - Review quantity, value, supplier information, and stock details carefully to avoid notices.
8. Step 8: Submit Using DSC or EVC - Verify via Electronic Verification Code (OTP) or Digital Signature Certificate (for Companies/LLPs).
9. Step 9: ARN Generation - Upon successful submission, an Application Reference Number (ARN) and an Acknowledgment are generated. Retain the ARN for future reference.

Common Errors While Filing CMP-03

Incorrect reporting may lead to filing failures or future disputes.

Error 1: JSON Validation Failure - Occurs due to blank fields, invalid formats, or incorrect values. Validate the Excel sheet before generating JSON.

Error 2: Wrong Stock Values - Furnishing estimated values instead of actual inventory. Refer to stock/purchase registers.

Error 3: Supplier Details Not Available - Reconcile purchase invoices and GSTIN details.

Error 4: Uploading Wrong Template - Older templates are not accepted. Download the latest template from the GST Portal.

Error 5: Authentication Problems - Update expired DSCs or incorrect mobile numbers before submission.

Consequences of Non-Filing

Failure to furnish GST CMP-03 may result in compliance issues and scrutiny from the CBIC GST Portal authorities.

• Loss of Proper Documentation: The department may question stock records and inward supplies.
• Increased Risk of Notices: Non-filing may trigger show cause notices and verification proceedings.
• Difficulties During Assessments: Stock reconciliation issues can arise during GST audits and inspections.
• Compliance Defaults: Failure to comply with Rule 3(4) leads to procedural non-compliance.
• Possible Disputes: Improper declarations may result in litigation or delayed assessments. If disputes occur, look into the GST Amnesty Scheme.

Practical Examples

GST CMP-03 Compliance Checklist

• Eligibility Checklist:
  ✓ Composition Scheme option exercised through CMP-02.
  ✓ Aggregate turnover within prescribed limits.
  ✓ Business not engaged in prohibited activities.
  ✓ No inter-state outward supplies.
• Documentation Checklist:
  ✓ Stock register updated & Purchase register reconciled.
  ✓ Supplier invoices available.
  ✓ Input, semi-finished, and finished goods inventory verified.
  ✓ Authorized signatory details available.
• Filing Checklist:
  ✓ Latest Excel template downloaded.
  ✓ Stock values checked and JSON file generated successfully.
  ✓ DSC/EVC verification completed.
  ✓ ARN downloaded and saved.
• Post-Filing Checklist:
  ✓ Maintain inventory records.
  ✓ Preserve supporting documents.
  ✓ Ensure consistency with books of accounts.
  ✓ Be prepared for future assessments.

Frequently Asked Questions (FAQs)

How Can EasyTax Help?

Filing GST CMP-03 involves inventory reconciliation, stock valuation, JSON generation, and portal compliance. EasyTax helps businesses manage these requirements accurately.

• GST Composition Scheme Advisory: Our experts help determine eligibility, compliance requirements, turnover limits, and procedural obligations.
• GST CMP-03 Filing Services: We assist taxpayers with preparation of stock statements, JSON file generation, portal filing, and error resolution. If making tax payments, we can assist with GST PMT-09 Filing.
• Inventory Reconciliation Support: EasyTax helps reconcile purchase records, stock registers, and books of accounts.
• GST Return Filing Services: Our team provides support for GSTR-4, Annual returns, and Composition scheme compliance.
• GST Notice Assistance: We help taxpayers handle departmental notices and compliance queries.

Conclusion

Form GST CMP-03 is an important compliance requirement for taxpayers transitioning to the Composition Scheme under GST. It enables proper disclosure of inventory held immediately before the scheme becomes effective and ensures transparency in tax records.

Timely filing of CMP-03, along with accurate stock details and proper reconciliation, helps businesses avoid notices and future disputes. Taxpayers should carefully maintain inventory records and verify all information before submitting the form.

Professional guidance can simplify the process and ensure full compliance with GST provisions.

Final Takeaway: GST CMP-03 filing is a critical step when migrating to the Composition Scheme. Proper stock declaration, timely filing, and maintenance of supporting records help businesses remain compliant and avoid future complications. With expert assistance, taxpayers can ensure a smooth transition and focus on growing their business with simplified GST compliance.