2%Lithium tax from Sept 1 (4% in 2027)

11 yrsBattery tax holiday comes to an end

¥0.365314 Ah cell avg price per Wh (≈ $0.05)

56%Overseas share of storage shipments (H1)

China’s energy-storage battery prices are climbing for the first time in over a year — and the trigger is not a supply squeeze alone, but a tax. After an 11-year holiday, lithium-ion batteries are being taxed again, and the cost is rippling down the entire storage supply chain.

The tax that ended an 11-year holiday

On July 16, China’s Ministry of Finance, together with the customs and tax authorities, issued Announcement No. 20 of 2026, restoring a consumption tax on lithium-ion batteries from September 1, 2026 at 2%, rising to 4% on September 1, 2027. The levy ends a tax exemption that has been in place since 2015, when lithium batteries were carved out of a broader 4% battery tax to nurture an infant industry that is now the world’s largest.

The policy is deliberately tiered. Solid-state batteries and sodium-ion batteries keep their exemption through the end of 2028 — a signal that Beijing wants mature lithium tech taxed and frontier chemistry protected. At roughly ¥0.40 per watt-hour, the 2% rate adds about ¥0.008 per Wh of cost, or roughly ¥8 million per gigawatt-hour of cell capacity.

The price wave

Battery makers are not absorbing the hit. EVE Energy told customers it would add the 2% tax to all domestic shipments from September 1, with exports taxed first and refunded later to keep domestic and overseas prices aligned. CATL quietly raised its 314 Ah cell price on its online store from ¥0.414 to ¥0.423 per Wh on August 1, a 2.2% increase.

The benchmark 314 Ah lithium-iron-phosphate storage cell now averages about ¥0.365 per Wh — roughly $0.050 — up from about ¥0.31 at the end of 2025, a rise of 25% or more depending on the source. The cost pressure is not confined to cells: cathode maker Hunan Yuneng added ¥2,000 per tonne to its iron-phosphate materials from August 1, and PCS suppliers such as Sinexcel announced increases of 10–30% in July.

Why now

Three forces are compounding. First, demand is booming: SNE Research counts 461.3 GWh of global lithium-ion storage battery shipments in the first half of 2026, up 71% year on year. Second, the tax is a hard, immediate cost that thin-margin cell makers — average net margins sit near 5% — cannot absorb alone, so they pass it downstream. Third, quality capacity is tight as top makers shift lines toward 500 Ah-plus cells, leaving the mature 314 Ah segment short just as integrators rush to lock in supply before the “golden September, silver October” season and a year-end rush to beat the looming export-rebate cutoff.

Winners and losers

The pain is unevenly distributed. CATL and EVE can push the tax and material costs onto buyers; second- and third-tier makers have far less leverage and are expected to shed low-end capacity. Downstream, storage integrators face the squeeze from both ends: they can roll cell price hikes into project budgets, but their own customers — state-owned developers with strong bargaining power — are pushing back, and some projects may simply be delayed rather than repriced.

The contrast with the auto market is sharp. EV battery costs are hard to pass to consumers in the middle of a price war, but storage cells have an easier path because a project’s total cost absorbs a small per-Wh increase more readily than a car’s sticker price does.

A globalized market

The repricing is no longer a purely domestic affair. In the first half of 2026, China’s share of global storage battery shipments fell below half — to 43.9%, down from 50.5% a year earlier — as overseas demand hit 56% of the total. North America and Europe grew 83% and 74%, while the Middle East, Australia and other emerging markets jumped 119%. A separate export-rebate cut — from 9% to 6% in April, and zero from January 2027 — is further reshaping incentives ahead of the tax.

Author’s Take: This is a policy shift masquerading as a price move. The 2% consumption tax is the clearest signal yet that Beijing is done subsidizing mature lithium chemistry and is instead using the tax code to steer capital toward solid-state and sodium-ion — the exact technologies it is simultaneously standardizing on the world stage. For storage developers, the near-term effect is a modest, largely one-time bump in cell cost that the industry’s tight supply lets producers pass through. The bigger story is structural: a market that spent a decade getting cheaper every quarter is now being repriced, and the companies with scale, overseas orders and next-generation chemistry are best positioned to absorb the shift. Everyone else is about to find out what their margins actually were.

The Bottom Line

China ended an 11-year tax holiday on lithium-ion batteries on September 1, adding a 2% consumption tax that will rise to 4% in 2027, while solid-state and sodium-ion chemistries stay exempt. The result is the first sustained price rise in the 314 Ah storage cell in over a year, driven by booming demand, tight capacity and the new levy — with CATL and EVE passing the cost on and smaller players facing a shakeout.