Tax Year 2026/2027 Changes: What You Need to Know

To combat "bracket creep" — where inflation pushes taxpayers into higher brackets without an increase in real purchasing power — many countries automatically adjust their tax brackets. For 2026, Germany and Austria have scheduled significant upward shifts in their bracket thresholds, providing noticeable tax relief for middle-income earners. Germany's Grundfreibetrag (tax-free allowance) has been raised incrementally from €10,908 in 2023 to over €12,000 by 2026, with each subsequent bracket threshold shifting upward accordingly.

Austria has implemented automatic inflation indexation since 2023: two-thirds of the bracket creep is offset automatically each year, with the remaining third allocated by the government through discretionary measures such as higher family bonuses or reduced rates on specific bands. France similarly adjusts its income tax brackets each year by the prior year's inflation rate, ensuring that a purely inflation-driven salary increase does not push a taxpayer into a higher marginal rate. Countries that do not index — or index only partially — effectively levy a hidden tax increase each year that erodes real purchasing power.

Facing aging populations, several European nations are raising the contribution rates for health and pension insurance. In Germany, the average additional health insurance contribution rate (Zusatzbeitrag) has risen from 1.3% in 2023 to 2.5% in 2025, with further increases expected as healthcare costs continue to outpace revenue. The long-term care insurance rate (Pflegeversicherung) was raised to 3.4% for childless employees in 2023 and further adjustments are under discussion for 2027.

France is gradually increasing employer-side pension contributions under the Agirc-Arrco unified supplementary pension scheme, which affects total employment costs for all salaried employees. Spain has introduced the Mecanismo de Equidad Intergeneracional (MEI) — a 0.7% contribution split between employer and employee — to bolster pension fund reserves, with the rate scheduled to rise to 1.2% by 2029. These incremental increases individually appear small but compound over time: a 0.5 percentage point rise in contributions on a €60,000 salary reduces annual net pay by €300, and the employer's cost increases by a similar amount.

Environmental policy is increasingly intersecting with personal taxation. Germany's CO₂ price under the national emissions trading system rose to €45 per tonne in 2024 and is set to reach €55 in 2026, directly increasing fuel, heating oil, and natural gas costs for households. For a typical household heating with natural gas, this translates to an additional €200–€350 per year in energy costs compared to pre-carbon-pricing levels.

Several countries are introducing or expanding vehicle-related environmental surcharges. The Netherlands has tightened its BPM tax on new car purchases based on CO₂ emissions, while France's malus écologique now applies penalties of up to €60,000 for the most polluting vehicles. These levies, while not directly deducted from your payslip, represent a growing share of household expenditure and should be factored into any cross-country financial planning. Workers who commute by car in high-carbon-price jurisdictions may find that the effective cost of their commute has risen significantly, reducing the real-world benefit of a nominally higher salary.

Tax law changes are published through official government gazettes, finance ministry announcements, and annual budget laws — but tracking these across 25 countries is impractical for most individuals. Professional bodies such as the Big Four accounting firms, national tax advisor associations (Steuerberaterkammern, Ordres des Experts-Comptables), and international organisations like the OECD publish annual summaries of key changes that are accessible and well-structured.

NettoFlow is updated at the start of each tax year to reflect the latest bracket thresholds, contribution rates, and ceiling adjustments for all 25 covered countries. By entering your gross salary and comparing the results for the current and upcoming year, you can see exactly how legislative changes will affect your take-home pay — without needing to parse government bulletins yourself. For major life decisions like relocation or job changes, running the calculation for both the current year and the next provides a forward-looking view that accounts for known upcoming changes.