September 1, 2026 is about to become an important date for China’s battery industry.

From that day, lithium-ion batteries and several other battery categories will begin paying a 2% consumption tax, with the rate scheduled to increase to 4% from September 1, 2027.

At first glance, the policy sounds straightforward:

Battery manufacturers pay another 2%.

But for companies operating across cells, modules, PACKs, energy storage, EVs, drones, robots and exports, the real questions are far more complicated:

If the cell has already been taxed, is the PACK taxed again?
Is a 5 MWh energy-storage system taxed on the cell, the battery cluster or the entire container?
If an EV manufacturer produces its own battery and installs it into a vehicle, is that battery tax-free?
Can consumption tax be refunded when batteries are exported?
What happens when batteries are integrated into exported vehicles or storage systems?
Which price is used to calculate the tax?
And for contracts signed before September 1, who absorbs the new cost?

On August 27, China’s State Taxation Administration published further implementation guidance that clarified several of these issues.

And the conclusion is becoming increasingly clear:

The biggest impact of the new policy may not be the tax rate itself. It may be the restructuring of battery supply chains, contracts, invoicing, manufacturing entities and export models.

1. First, This Is Not a New Battery Tax

China has had battery consumption-tax rules for years.

What changes on September 1 is that the long-standing exemption for several mature battery categories is being withdrawn.

According to the official policy:

From September 1, 2026, lithium-ion batteries, lithium primary batteries, nickel-metal hydride batteries and several other battery products are taxed at 2%.
From September 1, 2027, the rate rises to 4%.
Sodium-ion batteries, solid-state batteries, fuel cells and several advanced photovoltaic technologies remain exempt through December 31, 2028, subject to the applicable qualification requirements.

There is also an important technical distinction:

Semi-solid batteries are not treated as solid-state batteries.

The State Taxation Administration explicitly clarified that hybrid solid-liquid batteries contain both liquid and solid electrolyte and therefore do not qualify for the temporary solid-state battery exemption.

For companies developing next-generation cells, terminology is therefore no longer merely a marketing issue.

It can affect taxation.

2. Who Actually Pays the Consumption Tax?

Battery consumption tax is mainly collected at three points:

Domestic Production

A battery manufacturer sells taxable batteries.

→ The manufacturer declares and pays consumption tax.

Entrusted Processing

A company provides materials or commissions another company to process taxable batteries.

→ Under the applicable rules, the entrusted processor generally collects and remits the relevant consumption tax when the goods are delivered.

Importation

A taxable battery is imported into China.

→ Consumption tax is collected at the import stage.

This differs fundamentally from VAT.

Consumption tax is not normally charged repeatedly at every ordinary resale stage.

So if a trading company simply purchases finished batteries and resells them without further manufacturing, the resale itself generally does not create another full layer of battery consumption tax.

The situation changes when the company continues processing the product.

And this is where PACK companies need to pay attention.

3. Cell → PACK: Yes, the PACK Is Taxable—but the Cell Tax Can Be Credited

Imagine a PACK manufacturer purchases lithium-ion cells that have already paid consumption tax.

It then assembles those cells into:

Modules
Battery packs
Battery clusters

and sells the resulting battery product.

The PACK is still a taxable battery product.

So technically:

Yes, another consumption-tax calculation takes place at the PACK stage.

But this does not mean that the full value of the cell and the full value of the PACK are simply taxed twice.

The July policy specifically allows taxpayers that use already-taxed battery products to continuously manufacture another taxable battery product to deduct the consumption tax already paid on the input batteries, based on the quantity actually used in production.

The simplified logic becomes:

Consumption Tax Payable at PACK Stage

= PACK taxable sales value × tax rate

− Allowable consumption tax already paid on cells used

A Simple Example

Suppose:

Tax-paid cells purchased: RMB 80 million
PACK sales value excluding VAT: RMB 100 million
Consumption-tax rate: 2%
All relevant cells are used in production during the period

Cell-stage tax:

80 million × 2% = RMB 1.6 million

PACK-stage gross tax:

100 million × 2% = RMB 2 million

Tax after deduction:

2 million − 1.6 million = RMB 400,000

Economically, the tax burden is therefore concentrated mainly on the additional value created between cell and PACK rather than fully taxing both layers independently.

This is an important distinction.

The new system is not simply:

Cell 2% + PACK 2% = 4%

But there is a catch.

4. The Credit Does Not Happen Automatically

To deduct previously paid consumption tax, companies need proper documentation and accounting records.

The State Taxation Administration requires companies continuously producing taxable batteries from previously taxed batteries to maintain a Battery Tax Deduction Ledger and use compliant supporting documents. The relevant VAT special invoices or customs consumption-tax payment documents used for this mechanism must generally be dated September 1, 2026 or later.

This means tax management now becomes part of battery manufacturing.

A PACK company can have technically identical cells from two suppliers but achieve a different tax result because:

One supplier issued the correct invoice
One used the correct tax classification code
One transaction is properly traceable
Another is not

A missing document can transform a theoretically deductible tax into a real cost.

In the new environment:

Supplier qualification is no longer only about cell quality, capacity, internal resistance and cycle life. It is also about tax-document quality.

5. Energy Storage: Where Does the Battery Tax Stop?

This was one of the biggest questions facing the energy-storage industry.

Consider a large containerized energy-storage system containing:

Cells
Modules
Battery clusters
BMS
PCS
Liquid cooling
Fire suppression
EMS
Container structure

Should the 2% tax apply to the value of the cells?

The battery cluster?

Or the entire energy-storage container?

The August 27 clarification provides an important answer.

The State Taxation Administration states that battery clusters qualify as battery products, while the final energy-storage system is a complete set of electrical equipment and does not itself fall within the taxable battery category.

Therefore, conceptually:

Cell → Taxable

Module / PACK / Battery Cluster → Taxable battery product

Complete Energy Storage System → Not taxed again as a battery

This matters enormously.

Because the value of:

PCS
Cooling systems
Fire-suppression systems
EMS
Electrical systems
Containers

does not automatically become part of the battery consumption-tax base merely because they are integrated into an energy-storage project.

6. “The Storage System Is Not Taxed” Does Not Mean Storage Has No Tax Cost

This distinction is important.

The battery tax still exists upstream.

Suppose a company purchases cells and manufactures battery clusters.

The cluster stage can create consumption-tax liability, with the previously paid cell tax deductible under the relevant conditions.

The cluster is then integrated into a full energy-storage system.

The complete system does not generate another battery consumption tax.

But the tax already incurred in the battery chain does not magically disappear.

It becomes part of the battery cost.

And that cost can ultimately move through the commercial chain to:

Battery manufacturer → System integrator → EPC → Project owner

So the industry should not ask:

“Does energy storage pay consumption tax?”

The more useful question is:

“At what level in our corporate structure does the taxable battery product legally come into existence?”

This could influence how energy-storage groups structure:

Cell procurement
Cluster manufacturing
System integration
Contracts
Invoices
Intercompany pricing
Production records

For storage companies, tax architecture is becoming part of supply-chain architecture.

7. EV Batteries: Cell and PACK Are Taxable—The Vehicle Is Not a Battery

The same general logic applies to power batteries.

A lithium-ion cell is taxable.

A battery PACK is also within the battery production chain.

But an electric vehicle is not itself a taxable battery product.

What happens if the automaker buys a finished PACK and installs it?

The battery consumption tax is already embedded in the battery purchase price.

Because the vehicle itself is not a taxable battery product, that upstream battery tax generally becomes part of vehicle cost rather than being credited against another battery-tax liability.

But what if the automaker manufactures the battery internally?

Some people initially assumed:

“If the vehicle company makes the battery itself and installs it directly into its own vehicle, there is no sale, so there is no consumption tax.”

That interpretation is incorrect.

The official policy states that when a taxpayer produces taxable battery products for its own use and uses them to produce non-taxable products or for other purposes, consumption tax must be declared when those batteries are transferred for use.

In other words:

Self-produced does not mean tax-free.

Vertical integration may reduce supplier margins and improve production economics.

It does not make consumption tax disappear.

8. The Same Logic Matters for Drone and Robot Manufacturers

This issue is not limited to automotive companies.

Imagine a drone manufacturer that also manufactures its own lithium battery packs.

If the company produces batteries and transfers them into complete drones, the drone itself is not the taxable battery product.

The same self-use principle therefore becomes highly relevant.

Likewise for:

AGVs
AMRs
RGVs
Industrial robots
Humanoid robots
Electric aircraft
Other battery-powered equipment

Companies that previously thought of their internal battery division merely as a component workshop may now need to examine it as a separate taxable-product manufacturing activity.

For battery-powered hardware companies, the corporate question increasingly becomes:

Where exactly does the battery stop being a battery and become part of a non-taxable system?

That boundary can have financial consequences.

9. Exporting Batteries: Consumption Tax Can Still Be Exempted or Refunded

Export treatment creates another important distinction.

According to the August 27 clarification, battery exports continue to benefit from the applicable consumption-tax exemption/refund framework even though the separate VAT export-rebate policy for some battery products has been reduced.

For qualifying battery exports:

Battery Produced and Directly Exported

Consumption tax can generally be exempt.

Tax-Paid Battery Purchased or Entrusted for Processing and Then Directly Exported

Previously paid consumption tax can generally be refunded under the applicable export rules.

This creates an important principle:

The exported item itself must still be a taxable battery product.

And this leads to one of the biggest differences in the entire policy.

10. Export the Battery vs. Export the Final Product: The Tax Result Can Be Very Different

Suppose Company A exports a battery PACK directly.

The PACK is the exported taxable product.

It may qualify for the battery consumption-tax export treatment.

Now suppose Company B purchases the same PACK, installs it into an EV, and exports the vehicle.

The exported product is now:

An electric vehicle

—not a battery.

The State Taxation Administration explicitly clarified that an exported new-energy vehicle cannot claim a refund of the consumption tax previously paid on the lithium-ion battery pack used in the vehicle.

The same principle becomes strategically important for other integrated systems.

For example:

Battery PACK exported directly

and

Battery integrated into a finished equipment system before export

may produce different tax outcomes.

This could become highly relevant to exporters of:

Electric vehicles
Energy-storage systems
Industrial robots
Large UAV systems
Other battery-powered equipment

It does not mean companies should artificially restructure transactions to avoid tax.

Tax authorities will look at commercial substance.

But companies with genuine alternative manufacturing and export structures now have another variable to consider.

11. The Difference Could Matter to China’s Drone Battery Export Industry

This point is particularly interesting from the perspective of industrial UAV batteries.

Imagine two business models.

Model A

Chinese battery supplier exports:

22S 30Ah industrial drone battery PACK

The exported product is the battery itself.

Model B

Chinese UAV manufacturer installs the same battery inside a complete drone and exports:

Industrial UAV + Battery

The ultimate exported item is the complete aircraft rather than the standalone taxable battery.

The commercial and tax treatment can therefore differ.

For international UAV supply chains, this may influence how customers compare:

Complete-aircraft procurement
Battery procurement
Local battery sourcing
Overseas PACK assembly
Replacement-battery contracts

Tax policy may therefore subtly affect global battery supply-chain architecture.

12. Which Price Is Used to Calculate the Tax?

Another common misunderstanding is:

“The battery factory will calculate consumption tax based on its bare manufacturing cost.”

Not necessarily.

Consumption tax is generally based on the taxable sales amount excluding VAT, subject to the applicable tax rules.

The basic calculation is:

Consumption Tax = Taxable Sales Amount × Applicable Tax Rate

Additional consideration connected with the transaction can also affect the taxable amount.

This creates a risk for companies trying to separate battery value into categories such as:

Technical service fee
Packaging fee
Management fee
Subsidy
Deferred-payment interest

Simply renaming part of the commercial consideration does not automatically remove it from the tax base.

Tax authorities look at the economic substance of the transaction.

This becomes especially important in vertically integrated energy-storage businesses where:

Battery cluster → System integration

may occur inside the same legal entity without an obvious external cluster selling price.

In such cases, internal pricing and cost accounting become particularly important.

13. Why Can a 2% Tax Create a Price Increase of More Than 2%?

Customers may soon receive letters saying:

“Because of the new 2% consumption tax, our prices will increase by 2.3%, 2.5% or more.”

Some buyers may immediately respond:

“The tax is only 2%. Why are you raising the price by more than 2%?”

The answer is margin mathematics.

Consider a simplified example.

Product selling price excluding VAT:

RMB 100

Cost:

RMB 96

Original profit:

RMB 4

Original margin:

Now add:

2% consumption tax = RMB 2

Assume related surcharges equal approximately 12% of the consumption-tax amount for illustration:

Additional surcharge ≈ RMB 0.24

Remaining profit:

4 − 2 − 0.24 = RMB 1.76

The company has lost more than half its profit.

When the tax rate rises to 4%:

Consumption tax:

RMB 4

Illustrative surcharge:

RMB 0.48

Profit becomes:

4 − 4 − 0.48 = −RMB 0.48

A company that originally had a 4% profit margin can therefore move from profit to loss even though the nominal tax rate is “only” 4%.

This is why price increases may exceed the headline tax rate.

The supplier is not only trying to recover tax.

It may also be trying to restore the original profit level.

14. Low-Margin Battery Businesses Will Feel the Policy Much More Strongly

This creates an important industry divide.

Suppose Company A has:

15% gross margin

A 2% tax hurts, but the business has room to absorb part of it.

Company B has:

3–4% margin

The same 2% tax can destroy most of its profit.

This means the policy will not affect every battery company equally.

The greatest pressure may fall on:

Highly commoditized cell businesses
Low-end PACK manufacturers
Price-war suppliers
Companies with weak customer bargaining power
Companies with poor tax documentation
Businesses locked into long-term fixed-price contracts

In this sense, the consumption-tax policy could become another consolidation mechanism for the battery industry.

15. September 1 Is Not Simply About the Invoice Date

With the implementation date approaching, many companies are asking:

“If I issue the invoice before September 1, can I avoid the new consumption tax?”

The answer is not automatically yes.

The August 27 guidance reiterates that the timing of consumption-tax liability depends on the settlement method rather than simply the invoice date.

For example:

Credit Sales / Installment Payments

The tax obligation generally follows the payment date agreed in the written contract.

If no payment date is specified, the shipment date can become relevant.

Advance Payment

The tax obligation generally occurs when the taxable product is delivered.

Collection Through Bank

The relevant point can be when the goods are shipped and collection procedures are completed.

Other Settlement Methods

The timing can depend on when payment is received or the right to collect payment is obtained.

Therefore:

Contract + Delivery + Payment + Invoice + Accounting

must all tell the same commercial story.

Simply issuing an invoice on August 31 does not automatically determine the tax result.

16. The Biggest Commercial Fight May Be Existing Contracts

This is where the tax policy moves beyond finance departments and enters the sales office.

Imagine a battery contract signed in June 2026.

Price:

Fixed for 12 months

Shipment period:

September 2026–June 2027

The supplier priced the agreement before the 2% tax began.

From September, the supplier faces a real additional cost.

Who pays?

Supplier argument:

“The tax is a government policy change outside our control. The price must be adjusted.”

Customer argument:

“We signed a fixed-price contract. Your tax is your cost.”

Both sides may have a commercial argument.

The answer depends heavily on the contract.

17. Every Long-Term Battery Contract Now Needs a Tax-Change Clause

Future contracts should consider language covering:

New taxes
Changes in tax rates
Changes in export rebates
Customs changes
Environmental fees
Regulatory compliance costs

Commercially, the contract should clarify:

Is the quoted price tax-inclusive or tax-exclusive?

Who bears new government taxes introduced after signing?

Can either party reopen pricing after a tax-policy change?

Does the adjustment apply only to undelivered quantities?

What evidence must the supplier provide?

When does the new price become effective?

This may sound like legal housekeeping.

But for a high-volume battery supply agreement, 2% of annual turnover can be a very large number.

18. Bargaining Power Will Decide Who Actually Bears the Tax

Tax law determines:

Who must declare the tax.

It does not necessarily determine:

Who economically bears the cost.

Those are two different questions.

A large automaker may tell its battery supplier:

“Absorb it.”

A leading battery manufacturer may tell a small customer:

“Our price increases September 1.”

A strategic customer may negotiate:

50% supplier / 50% buyer

A long-term customer may negotiate the increase in exchange for:

Volume commitment
Longer contract term
Faster payment
Forecast visibility

So the ultimate incidence of the tax will depend partly on:

Supplier power vs. Customer power

This could become one of the most interesting commercial consequences of the policy.

19. Procurement Teams Should Stop Looking Only at the Quoted Unit Price

From September onward, two battery suppliers offering the same nominal price may not have the same true cost.

Procurement teams should increasingly check:

Is consumption tax already included?
Can upstream battery tax be credited?
Does the supplier have compliant invoices?
Is the product classification correct?
Is the battery exempt?
Does the supplier have the required test report?
Is this semi-solid or truly solid-state for tax purposes?
What happens if the rate increases to 4% next year?
How is export treatment handled?

The cheapest quotation may not be the cheapest compliant supply chain.

20. PACK Manufacturers Need to Add Tax Traceability to Cell Traceability

Battery factories already trace cells by:

Batch
Capacity
Voltage
Internal resistance
Manufacturing date
K value
Supplier

Now another dimension must be added:

Tax traceability

For each batch used in production, companies may increasingly need to know:

Which supplier?

Which invoice?

How much consumption tax was paid?

When was the cell received?

When was it used?

Which PACK consumed it?

Was the PACK sold domestically or exported?

This means ERP and MES systems may eventually need tighter integration with tax data.

Battery traceability is becoming:

Technical traceability + Financial traceability

21. Product Architecture and Corporate Architecture Are Becoming Connected

Historically, engineers decided:

Cell → Module → PACK → Cluster → System

mainly according to technical requirements.

Now financial and tax teams must also understand those boundaries.

Why?

Because the tax treatment changes when a product crosses from:

Taxable battery

to:

Non-battery integrated equipment

This is especially important for:

Energy storage
EVs
UAVs
Robotics
Marine electrification
Industrial equipment

The physical architecture of the battery system can interact with:

Legal entity structure
Manufacturing structure
Transfer pricing
Invoice structure
Export structure

In other words:

Battery engineering and tax engineering can no longer operate completely independently.

22. What Should Battery Companies Be Doing Now?

With September 1 arriving, the priorities are becoming very practical:

Confirm which products are taxable and which qualify for exemption.
Separate semi-solid batteries from qualifying solid-state products.
Obtain required CMA-qualified test reports for eligible exempt products.
Review invoice classifications.
Establish the Battery Tax Deduction Ledger.
Map cell → module → PACK → cluster → finished-system flows.
Separate domestic and export flows.
Review self-produced batteries transferred into non-battery products.
Recalculate margins at both 2% and 4% tax rates.
Review long-term fixed-price contracts.
Add tax-change clauses to new contracts.
Update quotations and ERP systems.

The policy is not merely a tax-department issue.

It touches:

Sales + Procurement + Finance + Engineering + Manufacturing + Logistics + Export + Legal

Final Thoughts: 2% Is Small—Until You Follow It Through the Supply Chain

The headline is simple:

Lithium-ion battery consumption tax: 2% from September 1, 2026.

But the real story is much more complicated.

The questions that will determine business impact are:

Where does the taxable battery product form?

Which upstream tax can be deducted?

Where does the taxable chain end?

Is the final export a battery or a complete system?

Can the supplier prove the deductible tax?

When does the tax obligation legally arise?

And who has enough bargaining power to pass the cost downstream?

For battery companies, this is no longer simply about paying another 2%.

It is about redesigning the commercial chain around:

Product → Tax → Invoice → Manufacturing → Contract → Export

The companies that manage this well may absorb the transition with limited disruption.

The companies that do not may discover that the biggest cost is not the 2% tax itself.

It is:

lost deductions, wrong product classification, weak contracts, poor documentation and unplanned margin erosion.

And when the rate rises to 4% in September 2027, those differences will become even more visible.

For the battery industry, September 1 is therefore not simply the beginning of a new tax.

It is the beginning of a new cost-management discipline.

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This article is intended for industry discussion and general information only and does not constitute tax or legal advice. Actual tax treatment should be confirmed based on the specific transaction structure and current guidance from the relevant tax authorities.