For battery manufacturers, the 4% consumption tax represents a significant cost. Many manufacturers do not realize that eligible environmentally friendly batteries can apply for full tax exemption with a compliant CMA test report, achieving legitimate cost reduction and efficiency improvement.

As China continues to implement preferential tax policies for green batteries, obtaining a legally valid test report has become the key for factories to benefit from these incentives.This article explains the official policy and the complete process for acquiring a battery consumption tax exemption test report.

1. Policy Background: 4% Tax & Exemption Scope

According to Caishui [2015] No.16 (Ministry of Finance & State Taxation Administration), effective February 1, 2015, a 4% consumption tax is levied on batteries.

The following seven categories of eco-friendly batteries are exempt:

Without valid certification, you may unnecessarily pay millions in tax annually.

2. What Is a Battery CMA Report & Why Is It Mandatory?

A battery consumption tax test report is an official document issued by a CMA‑accredited laboratory after testing according to national standards.It is the legal proof required by tax authorities to approve exemption.

Why CMA?

CMA (China Metrology Accreditation) is a mandatory laboratory certification under the Metrology Law of China.

Tax authorities only accept reports from labs that:

• Hold a valid CMA certificate
• Have battery testing items explicitly listed in the CMA annex

Only CMA reports have legal force for:

• Tax exemption filing
• Product quality certification
• Legal evidence in disputes or inspections

3. Full Application Process

The complete cycle typically takes 3–6 weeks.

Step 1: Self‑Assessment & Preparation

Confirm your battery falls within the exempt categories and prepare specifications and representative samples.

Step 2: Choose a Qualified Lab — Guangdong ESTL Technology Co., Ltd.

Key qualifications:

• CMA (No. 202019014977) – reports directly accepted for tax exemption
• CNAS (No. L13753) – international recognition
• IECEE‑CBTL, UL, TÜV, Eurofins authorized lab

Step 3: Testing & Report Issuance

Tests include mercury content, battery type verification, and safety performance.A CMA‑stamped report is issued upon passing.

Step 4: File with Tax Bureau

Submit one CMA report + product detail list (by category, not per model).The list must match invoices and accounting records.

4. FAQ

Q: Must I test every model?No. Test one representative model per category and submit a list for all similar products.

Q: How long is the CMA report valid?No fixed expiry, but tax authorities usually accept reports issued within 1–2 years.

Q: How long does it take?3–6 weeks, depending on battery type and test items.

Q: Do imported batteries need this report?Yes. Importers must provide a Chinese CMA report to claim exemption at customs.

5. Compliance Tips

• Use only authentic CMA reports
• Verify lab credentials officially
• Keep complete records: reports, lists, contracts, invoices
• Ensure product names and models match all documents

6. Why Choose Guangdong ESTL?

• Authoritative dual accreditation: CMA + CNAS
• 10+ years of battery testing expertise
• Covers all 7 exempt battery types
• Fast, streamlined testing process
• Full support: policy consultation, reporting, filing guidance

As part of GTG Group, ESTL is a trusted leader in battery certification and testing.

Conclusion

A compliant CMA report is the key to legally cutting 4% costs through tax exemption.Work with a qualified lab to maintain full compliance and maximize benefits.

Guangdong ESTL Technology Co., Ltd.supports your tax compliance, cost reduction, and green development.

Contact Information

Guangdong ESTL Technology Co., Ltd.
Website: www.gdestl.com
Hotline: +86 13925598091
Email: net03@gtggroup.com
Address: 2nd Floor, Area B, Jinshengsheng Industrial Park, Zongbu 2nd Road, Songshan Lake High-Tech Zone, Dongguan, Guangdong, P.R. China