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CMP-08: Quarterly Statement for Composition Scheme Taxpayers

Complete guide to CMP-08 quarterly statement for composition scheme taxpayers covering due date, filing process, and compliance requirements.

14 Aug 20263 min read

CMP-08 is the quarterly statement that composition scheme taxpayers must file to report and pay their self-assessed GST. Unlike regular taxpayers who file monthly returns, composition taxpayers file a quarterly statement (CMP-08) and an annual return (GSTR-4).

This comprehensive guide covers everything you need to know about CMP-08, including due date, filing process, and compliance requirements.

What Is CMP-08?

CMP-08 is a quarterly statement for payment of self-assessed tax that must be filed by taxpayers who have opted for the composition scheme under GST. It contains details of outward supplies, inward supplies attracting reverse charge, and import of services.

Who Must File CMP-08?

CMP-08 must be filed by all taxpayers who have opted to pay tax under the composition scheme. This includes:

  • Manufacturers
  • Traders
  • Service providers under the special composition scheme

Critical Rule: Filing of CMP-08 is mandatory even if there is no business activity in any particular tax period.

Due Date for CMP-08

CMP-08 must be filed by the 18th day of the month succeeding the quarter.

QuarterDue Date
April - June18th July
July - September18th October
October - December18th January
January - March18th April

CMP-08 Format and Structure

CMP-08 contains the following details:

  • Outward supplies made during the quarter
  • Inward supplies attracting reverse charge
  • Import of services
  • Self-assessed tax payable
  • Tax paid during the quarter

Filing CMP-08: Step-by-Step Process

Step 1: Calculate Self-Assessed Tax

  • Calculate turnover for the quarter
  • Apply the applicable composition rate
  • Calculate tax payable

Step 2: Log in to GST Portal

  • Visit www.gst.gov.in
  • Navigate to Services > Returns > Returns Dashboard

Step 3: Select CMP-08

  • Select the financial year and quarter
  • Click on "Prepare Online"

Step 4: Fill Details

  • Enter details of outward supplies
  • Enter details of inward supplies (RCM)
  • Enter details of import of services
  • Calculate tax payable

Step 5: Pay Tax

  • Pay tax through the electronic cash ledger

Step 6: Submit

  • File using DSC or EVC

Filing Nil CMP-08

Online Filing

Nil CMP-08 can be filed online through the GST portal.

SMS Filing

Composition taxpayers can now file nil statement in Form GST CMP-08 through SMS and without logging in to the GST portal. This provides significant convenience for small taxpayers.

CMP-08 vs GSTR-4

AspectCMP-08GSTR-4
FrequencyQuarterlyAnnual
PurposePayment of self-assessed taxAnnual return
Due Date18th of month following quarter30th April (or extended)
ContentQuarterly turnover and tax paidConsolidated annual statement

Common CMP-08 Errors to Avoid

1. Not Filing CMP-08

CMP-08 must be filed every quarter, even if there is no business activity.

2. Incorrect Turnover Calculation

Ensure turnover is correctly calculated for the quarter.

3. Incorrect Tax Rate Application

Apply the correct composition rate based on the business category.

4. Not Paying Tax on Time

Tax must be paid before filing CMP-08.

5. Ignoring RCM Supplies

Inward supplies attracting reverse charge must be reported in CMP-08.


Need assistance with CMP-08 filing for your composition scheme business? Our expert team ensures accurate and timely filing.

Contact Anuj Desai & Associates: šŸ“§ Email: office@anujdesaiassociates.com šŸ“ž Phone: 9619456656 🌐 Website: https://anujdesaiassociates.com šŸ”— LinkedIn: linkedin.com/in/ca-anuj-desai-122547230

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