Flat tax 2026: rate, calculation and options

Updated April 2026 - The French flat tax, or prelevement forfaitaire unique (PFU), remains the default régime for many forms of investment income in France. Its apparent strength is simplicity. Its weakness is that it often gives an incomplete picture of the real cost. In 2026, the useful question is not whether the flat tax is "good" or "bad", but when the 31.4% PFU is preferable to the progressive income-tax option, and when other contributions need to be factored into the analysis.

Quick answer: for 2026 income, the PFU generally combines 12.8% income tax with 18.6% social levies on the investment income concerned, for a 31.4% total in the general case. The progressive-scale option can still be better for low-tax households or for dividends benefiting from the 40% allowance.

The PFU generally corresponds to a global 31.4% rate, made up of:

• 12.8% income tax;
• 18.6% social levies (following the increase in CSG on capital income).

It applies in particular to many forms of:

• dividends;
• interest;
• gains on transfers of securities.

For some households, the effective burden can exceed 31.4% once you add:

• the exceptional contribution on high income;
• the Contribution Différentielle sur les Hauts Revenus (CDHR): note that, for this contribution, the favourable income-splitting (quotient) mechanism for exceptional income is now neutralised — which can significantly increase the charge when large dividends or capital gains are received;
• the wider effect of the household's total income composition.

In other words, a headline 31.4% rate can be misleading if it is read without référence to the broader tax profile.

Electing for the progressive scale may become relevant if:

• your marginal income-tax bracket is relatively moderate;
• you receive dividends benefiting from the 40% allowance;
• deductibility of part of the CSG becomes useful in your situation.

However, this option is global for the relevant investment income of the year. It cannot be chosen line by line. That is why the decision should be tested through a full annual simulation rather than a quick isolated comparison.

To arbitrate correctly, the issue should be linked to executive-rémunération strategy. Our articles on dividends vs salary, how to avoid the flat tax legally and PUMA tax 2026 help extend the analysis.

If you are a company director or shareholder, you usually need to review together:

• the level of rémunération;
• the amount of distributable dividends;
• your personal tax burden;
• the possible exposure to subsidiaire maladie contributions;
• the use of a holding structure for capitalisation.

A dividend that looks lightly taxed at first glance can become less attractive than properly structured rémunération once all the tax and social effects are taken into account.

The PFU often stays attractive when:

• you are already in a high income-tax bracket;
• you mainly receive interest or capital gains;
• you are looking for predictable taxation;
• there is no strong benefit in opting globally for the progressive scale.

The most common errors are:

• comparing PFU and the progressive scale without including social levies;
• looking only at income tax without considering social-protection effects;
• forgetting the exceptional contribution on high income (CDHR) and the neutralisation of the quotient mechanism for exceptional income;
• distributing dividends without modelling the PUMA effect.

Hayot Expertise insight: for a business owner, the flat tax is never an isolated decision. It is one piece of a broader puzzle that also includes rémunération, holding structures, retirement strategy and personal cash needs.

The right comparison should never stop at a headline rate. You also need to account for the 40% dividend allowance, possible CSG deductibility and the household's overall tax position. In many cases, the useful view is three-column based: gross income, PFU cost and progressive-scale cost.

This grid is not a hard rule. It is a practical filter. A business owner may prefer the PFU simply to keep the decision predictable, while a low-tax household can sometimes do better on the progressive scale.

The private investor#

For a private investor, the key question is whether the capital income really needs the PFU. If the household is lightly taxed, the progressive scale may win once dividend allowances are taken into account.

The company owner#

For an owner, flat-tax thinking should never be isolated from pay policy. The real issue is the balance between salary, dividends, company cash and personal social protection. A dividend taxed at 31.4% may look simple, but it can still be less relevant than salary once the whole cost stack is considered.

The household with exceptional income#

When income is concentrated in one year, the flat tax interacts with other mechanisms such as the exceptional high-income contribution and, where relevant, the CDHR. These scenarios are the most dangerous because one decision can affect several layers of taxation at once.

Not every product belongs in a standard PFU-versus-barème comparison. Some envelopes have their own tax rules and need a separate check:

• PEA;
• life insurance;
• regulated savings products;
• special investment régimes or income already covered by a dedicated framework.

The first step is therefore to identify the income source before making any net-return comparison. A product can look attractive on paper and less attractive at withdrawal time.

For business owners, the real decision often concerns cash. Should you distribute now, move cash up to a holding company, reinvest or keep reserves in the operating company? The PFU does not answer that question by itself, but it does change the final conclusion.

Three points come up repeatedly:

• can the company distribute without weakening operations?
• how does the distribution affect the household's tax position?
• is the chosen mix of salary and dividends coherent with personal cash needs?

In practice, a slightly smaller distribution that remains aligned with the strategy is often better than a fast payout that creates a poor tax or social-security match later.

• comparing PFU and barème without the rest of the household;
• forgetting that the progressive-scale option is global;
• ignoring social costs or the CDHR in higher-income cases;
• focusing only on the rate rather than the net cash available;
• distributing dividends without checking the company's cash position.

Most of these are method errors, not complex technical errors. A clean simulation with the right assumptions removes the majority of them.

1. Identify the income type.
2. Check whether it falls under the PFU or a special régime.
3. Calculate the PFU result.
4. Recalculate under the progressive scale, including the dividend allowance where relevant.
5. Add the household's wider tax profile and any high-income contributions.
6. Validate that the choice still fits the rémunération or wealth strategy.

This method takes a little more time, but it avoids intuitive decisions on a mechanism that can become expensive over a full tax year.

In real life, the decision is not made in the abstract. It is made on the return, with the actual household data for the year. That means the result depends not only on the rate but also on what has already been withheld, how the income is reported and whether the household has any special régime that changes the analysis.

Useful special cases to check include:

• whether the income is purely dividends or mixed with gains and interest;
• whether the household is already using a specific wrapper such as life insurance or a tax-advantaged account;
• whether the timing of the income concentrates several gains into one tax year;
• whether the household has other deductions or offsets that affect the final outcome;
• whether the choice interacts with a transfer, an exit or a holding-company distribution.

The return itself matters because the option for the progressive scale is not a one-line ideological choice. It is a practical filing decision that should reflect the full picture of the household. In some years, the difference between two options can be small enough to tolerate a simpler route. In other years, a small percentage difference can shift several thousand euros.

Before a distribution, owners should ask a few direct questions:

• does the company still need the cash for operations?
• is the dividend part of a broader rémunération policy?
• will the household tax position change enough to justify the distribution?
• is there a better year to distribute?
• does a holding-company route make more sense than a direct payout?

These are not theoretical questions. They are the questions that decide whether a dividend is useful or merely expensive. A well-timed payout can be a clean tool. A poorly timed one can create a tax result that is technically correct but strategically weak.

The best use of the PFU is often to keep a simple baseline while still checking the edge cases. If the household is highly taxed and the income is classic capital income, the flat tax may be the right default. If the household is low taxed, if dividends are involved or if the income is concentrated, the progressive scale should be tested.

The real discipline is not to chase the lowest possible rate in isolation. It is to compare the net result, the administrative cost and the flexibility you keep for the rest of the year.

The best way to decide is to run a full simulation rather than rely on a theoretical headline rate.

Try our executive rémunération simulator

In 2026, the flat tax remains simple and often efficient, but it is not always the optimal choice. As soon as dividends become meaningful, a broader tax and social review becomes necessary to avoid bad surprises. The right answer is almost always the one that reflects your full situation, not the one that looks simplest on paper.

(Official sources: Service-Public on securities gains, Entreprendre.Service-Public on dividends, Service-Public on the exceptional contribution on high income, économie.gouv.fr on the Finance Act 2026)