Corporate taxation: Taxes, deductions and optimization

Introduction

Corporate taxation constitutes one of the major strategic levers of an organization's financial performance. In France, the tax framework applicable to businesses is based on a complex set of rules from the General Tax Code (CGI), the Monetary and Financial Code, and European directives. Between Corporate Tax (IS), Value Added Tax (VAT), social contributions and Territorial Economic Contribution (CET), managers must master a dense tax ecosystem to optimize their tax burden while scrupulously respecting the legislation. This article offers a complete overview of the main taxes, available tax deductions, applicable special regimes, and legal optimization strategies for 2024.

Corporate Tax (IS): mechanisms and rates

Corporate Tax applies by default to capital companies (SA, SAS, SARL) and, optionally, to certain structures such as SCI or EURL. Since the progressive reform initiated by the 2018 finance law, the standard corporate tax rate has been lowered to 25% for all financial years beginning on or after January 1, 2022, in accordance with article 219 of the CGI.

SMEs benefit from a reduced rate of 15% on the first tranche of €42,500 of profits, under conditions: turnover less than €10 million and fully paid-up capital held at least 75% by individuals. Beyond this bracket, the normal rate applies.

The calculation of the tax result differs from the accounting result: certain charges must be reinstated (fines, non-deductible taxes, excessive gifts), while other products can benefit from preferential regimes (long-term capital gains taxed at 0% on equity securities, parent-daughter regime exempting 95% of dividends received).

VAT: collection, deduction and applicable regimes

VAT, an indirect tax on consumption, represents the first item of tax revenue for the French State. The applicable rates are: 20% (normal rate), 10% (catering, renovation work), 5.5% (essential products, books) and 2.1% (reimbursable medicines, press).

The VAT mechanism allows the company to deduct the VAT incurred on its purchases (deductible VAT) from that collected from its customers (collected VAT). The balance is paid to the tax administration at a variable frequency: monthly, quarterly or annually depending on the tax regime.

Three regimes coexist: the basic franchise (VAT exemption up to €91,900 of turnover for commercial activities), the simplified regime (annual CA12 declaration with half-yearly installments) and the normal real regime (monthly CA3 declaration).

Strategic tax deductions and tax credits

Legal tax optimization is largely based on the judicious use of deductions and tax credits. The Research Tax Credit (CIR), codified in article 244 quater B of the CGI, allows 30% of R&D expenses to be deducted up to 100 million euros, and 5% beyond. The Innovation Tax Credit (CII) extends this system to SMEs up to 20% of innovation expenditure.

Other levers exist: productive excess depreciation, corporate sponsorship (60% reduction in payments within the limit of 0.5% of turnover), deduction of loan interest (capped at 30% of tax EBITDA according to the ATAD directive), and carryover of deficits (forward without time limit, backward over a financial year within the limit of 1 million euros).

Legal tax optimization strategies

Effective tax optimization combines several approaches: choice of the appropriate legal structure, compensation/dividend arbitration for the manager, strategic location of activities, and use of international tax conventions to avoid double taxation. Tax consolidation (article 223 A of the CGI) allows 95%-owned groups to consolidate their tax results, offsetting profits and deficits of subsidiaries.