Key Takeaways:
- Paraná fuel price increase will take effect on 1 January 2026 following a Confaz ICMS adjustment confirmed by Paranapetro.
- Gasoline will rise by R$0.10 per litre, diesel by R$0.05 per litre and LPG by about 5.7%, or roughly R$1.05 on a 13kg cylinder.
- Distributors and retailers are expected to pass the higher tax through immediately, so new pump prices should appear on day one of the year.
Fuel prices across the state of Paraná will increase from 1 January 2026 after the National Council for Financial Policy (Confaz) approved an adjustment to the ICMS tax regime, authorities and industry representatives have confirmed. The change will affect prices at the refinery level and is expected to be passed on quickly to distributors, retailers and consumers.
Paraná fuel price increase and immediate pass-through
Paranapetro, the association representing fuel retailers and petrol stations in Paraná, said the updated ICMS will add R$0.10 per litre to gasoline and R$0.05 per litre to diesel. Liquefied petroleum gas (LPG) will rise by around 5.7%, equating to roughly R$1.05 on a standard 13kg cylinder.
The revised tax rates follow a policy established in 2022 that set the ICMS as a fixed value per litre and harmonised the levy across Brazil. The latest adjustment is the second consecutive annual increase to the ICMS on fuels, after a nationwide rise earlier this year.
Paranapetro emphasised that the increase is applied at the refinery exit, which typically means an immediate pass-through along the supply chain. Retailers commonly adjust pump prices soon after distributors reflect the higher tax, so consumers are likely to encounter the new rates from the first day of January.
Since the 2022 shift to a per-litre ICMS structure, the tax burden on diesel has grown by approximately R$0.22 per litre, an increase close to 23% within the tax amount itself. Analysts warn that successive rises can add to inflationary pressures, particularly in the transport sector where diesel costs feed into freight and distribution expenses.
The Paraná adjustment will therefore carry implications beyond forecourts. Transport operators, logistics firms and businesses that depend on road freight may face higher operating costs. These can translate into wider price effects for goods and commodities that rely on road distribution.
Industry groups and consumer advocates have previously expressed concern about the fixed per-litre tax mechanism, arguing that it reduces the ICMS’s sensitivity to international oil price falls and exchange-rate movements. Government officials defend the policy on grounds of fiscal predictability and uniformity among states.
For drivers and households that use LPG for cooking, the 5.7% rise represents a direct impact on household budgets. A R$1.05 increase on a 13kg cylinder may appear modest in isolation, but repeated adjustments over time can combine to create noticeable strain for lower-income families.
Paranapetro’s statement and the data on expected rises were reported with additional coverage by regional outlets. Market participants will watch whether state or federal authorities alter other fiscal policies to soften the broader economic effect of the tax increases.
Consumers are advised to monitor official communications from fuel retailers and distributors over the coming days for precise pump prices and any promotional actions stations might run to retain customers in the face of higher costs.

















