The Índice Nacional from Este resultado mensal espelha a variação observada em dezembro de 2025, indicando uma continuidade nos patamares de alta de preços que impactam diretamente o poder de compra da população. The annualized rate, referring to the last 12 months, reached 4.44%, surpassing the mark of 4.26% registered in the immediately preceding period and being slightly above the expectations of market analysts, who projected 0.32% for the month and 4.43% for the year to date.
The main driving force behind the rise in the index in January came from the Transportes sector, particularly the rise in fuel prices. Itens such as gasoline, ethanol and diesel oil showed significant increases, putting considerable pressure on the family budget and the general cost of living.
In addition to fuel, adjustments to urban bus fares in several capitals also contributed significantly to the month’s inflationary scenario, demonstrating the breadth of factors that influence the IPCA and its complex interconnection with different segments of the national economy.
The composition of the index in January
The detailed analysis of the nine groups that make up the IPCA reveals the areas of greatest and least pressure on the consumer’s budget. Embora some segments showed deflation, the increase in others was enough to boost the general index.
This dynamic reflects the heterogeneity of the economy, where different sectors respond in different ways to cost pressures, government policies and fluctuations in demand, generating a complex panorama for economic planners and the day-to-day management of families.
Transport as a driver of inflation
The Transportes group was mainly responsible for the increase in the IPCA in January, with an increase of 0.60%. Esse percentage translated into an impact of 0.12 percentage points on the general index, confirming the significant weight that travel costs exert on official inflation. Price volatility in this segment is a constant challenge to economic stability.
The dependence on transport, both for the logistics of goods and for the daily movement of the workforce, means that any price variation in this group quickly reverberates throughout the entire production and consumption chain, affecting everything from the final value of the products on the shelves to the daily expenses of citizens. The scenario reinforces the need for constant monitoring and mitigation strategies to control the inflationary effects arising from this crucial sector.
Fuel pressure
The main pressure within the Transportes group came from fuels, which registered a significant increase of 2.14% in January. Esse increase is a crucial factor, as it directly affects both individual and collective transport and the logistics of transporting goods. Gasoline, in particular, increased by 2.06% and was the item with the biggest individual impact on the IPCA, contributing 0.10 percentage points to the overall index for the month, highlighting its relevance in the consumer basket.
Other types of fuel also registered notable increases, complementing the rising costs. Ethanol rose 3.44%, diesel oil rose 0.52% and vehicle gas increased 0.20%. Esses numbers demonstrate a generalized tendency for energy for transport to become more expensive, possibly reflecting the behavior of international oil prices and the tax and pricing policies applied in the domestic market.
Adjustments to public transport
In addition to fuel, the public transport sector also contributed to January’s high inflation, with significant readjustments in several of the country’s capitals. The urban bus, for example, registered an increase of 5.14%, impacted by new fares that came into force at the beginning of the year.
Several cities implemented increases, directly impacting users’ cost of living. Em Fortaleza, the adjustment was 20.00% (with an impact of 15.87%) since January 1st. São Paulo saw an increase of 6.00% (9.18%) from January 6th, considering free payments on Sundays and holidays. No Rio from Janeiro, the increase was 6.38% (5.32%) since January 4th, while Belo Horizonte increased by 8.70% (3.99%) from January 1st, with free payments on Sundays and holidays starting in December 2025. Vitória increased by 4.16% (2.70%) from January 12th.
The subway also advanced 1.87%, influenced by readjustments in Brasília and São Paulo, also affecting the train and the integration of modes in the capital of São Paulo. Já taxis rose 1.47%, reflecting increases in Rio Branco, Fortaleza, Rio from
Relief on other transport services
In contrast to the increases observed in fuels and public transport, some items in the Transportes group registered a decline and helped to moderate the general impact of inflation. Essa compensation is important to avoid an even greater increase in the index.
Two notable examples of retreat were:
Communication and health: secondary pressures
The Comunicação group also showed a considerable increase in January, registering 0.82%. Essa increase was driven mainly by the increase in the prices of telephone devices, which rose 2.61%. Além In addition, readjustments in service plans were relevant factors, influencing sub-items such as pay TV (1.34%) and telephone, internet and TV combos (0.76%), which also had their values increased.
In Esses adjustments reflect both demand for essential products and services and annual price reviews applied by operators and manufacturers.
The continuation of these increases in essential services, such as health and communication, represents an additional challenge for the budgets of families, especially those with lower incomes, who allocate a significant portion of their earnings to these items. The perception of the cost of living is directly impacted by the sum of these factors.
Slowdown in food and housing
The group Alimentação and beverages showed a slowdown in January, with a change of 0.23%, below the 0.27% recorded in December. Essa was the smallest variation for the month since 2006, indicating relief in one of the sectors with the greatest weight in the composition of the IPCA. Food at home changed 0.10%, influenced by mixed price movements, reflecting the dynamics of supply and demand for agricultural products.
Among the falls, the following stood out:
On the other hand, some essential foods registered increases:
* Contrafilé: 1.86%
*Alcatra: 1.61%
Housing and electricity
The Habitação group showed a drop of 0.11% in January, mainly driven by the 2.73% reduction in residential electricity. Esse decline was the biggest negative impact on the month’s index, contributing -0.11 percentage points. The change in tariff flag, from yellow in December (with an extra charge of R$1,885 for every 100 kWh) to green in January (at no additional cost to the consumer), was decisive for this result.
Despite the drop in electrical energy, other components of the Habitação group recorded increases. The water and sewage rate rose 2.56%, due to adjustments in several capitals such as São Paulo, Campo Grande, Belo Horizonte, Porto Alegre, Curitiba and Rio from Piped gas increased by 0.95%, influenced by the adjustment of 4.10% in São Paulo, partially offset by a reduction in Rio from Janeiro.
Regional variations in inflation
Analysis of the IPCA by regions of the country reveals significant disparities, with some capitals facing more pronounced inflationary pressures than others. Essa regional variation can be attributed to factors specific to each location, such as adjustments to public services, weather conditions that affect food prices, and local market dynamics.
The biggest change was recorded in Rio Branco, with 0.81%, influenced by the increase in residential electricity (5.34%) and personal hygiene items (1.75%). In contrast, the smallest change occurred in Belém, with 0.16%, mainly due to the decline in residential electricity (-3.83%) and airfare (-11.01%). Over the 12-month period, Vitória and Porto Alegre recorded inflation of 5.06%, while São Paulo accumulated 4.92%. Rio Branco presented 4.47% in the period, and Salvador, 3.94%.