2026 Shareholder's Practical Guide

Your Tax Return in 2026

FACTSHEET

10

YOUR TAX
RETURN IN 2026

The taxation information in this Factsheet applies to French tax residents.

You can choose between two methods of taxation for investment income, including dividends received and capital gains realized in 2025:

  • the Single Flat Tax (“Prélèvement Forfaitaire Unique” or “PFU” in French) of 31.4%;
  • Income tax (in French “IR”) on a progressive scale.

You may choose a different method each year. Whichever you choose, it will apply to all of your investment income. It is therefore important that you assess your overall taxation of dividends and capital gains using both methods before selecting one of the two options.

Please note that you are personally responsible for declaring your income and capital gains on the sale of shares to the tax authorities. The data made available to you is intended to facilitate your administrative procedures and is provided for information purposes only, based solely on the information available to Air Liquide. Air Liquide cannot under any circumstances be held responsible for the accuracy of the information you report in your tax return.

GOOD TO KNOW

Offsetting capital losses

Capital losses can be offset against capital gains (see Factsheet No. 9).

The payment of tax on capital gains and losses on the sale of securities received in 2025 will be due to the tax authorities in September 2026.

CAPITAL GAINS TAXATION

OPTION A A Flat tax (“PFU”): 31.4 %

OR

 OPTION B Income tax (“IR”) on a progressive scale

  • Social contributions: 18.6% on all capital gains, no allowance applied.

  • Income tax: 12.8% on capital gains no allowance applied, regardless of when shares were acquired.

  • Social contributions: 18.6% on all capital gains, no allowance applied.

  • Shares acquired before  01/01/2018 Progressive income tax scale after application of an allowance for the holding period, if applicable(1).

  • Shares acquired from  01/01/2018 Progressive income tax scale without the application of an allowance for the holding period.

DIVIDEND TAXATION

OPTION A Flat tax (“PFU”): 31.4 %

OR

 OPTION B Income tax (“IR”) on a progressive scale

  • Social contributions: 18.6% on the gross amount of dividends, no allowance applied.

  • Income tax: 12.8% on the gross amount of dividends, no allowance applied.

  • Social contributions: 18.6% on the amount of gross dividends, no allowance applied.

  • Income tax based on a progressive scale on the amount of gross dividends after application of a 40% allowance.