Does my code decide my tax?

No. A NACE code does not decide tax. A code is a statistical classification of an economic activity, for the collection, transmission and publication of statistics, and the EUR-Lex summary states that the legislation only applies to the use of the classification for statistical purposes, and does not oblige member states to collect, publish or supply data. Tax is decided under tax law, on the facts that tax law requires, by the tax authority, and a statistical code is not a tax decision.

A reader who is told that a code sets a tax rate, or that changing a code changes the tax owed, should ask for the tax instrument that states the rule, and should check whether the rule refers to the code at all. In most cases, it will not, and the code will be irrelevant to the tax decision.

Why do people think a code decides tax?

People think a code decides tax because codes appear on tax forms, in tax registers, and in the records that tax authorities use to group businesses for statistics and for risk assessment, and because a code is often shown alongside a tax identifier in a company record. The appearance of a code in a tax context does not make the code a tax rule. A tax authority can use a statistical code as one input among others, for grouping, for sampling, or for analysis, without the code deciding the outcome. A code can also be used by a business itself, in its own records, to describe its activity for administrative convenience, without the code acquiring legal effect. The confusion is understandable, because the same record can serve a statistical purpose and an administrative purpose, and the two purposes are not always distinguished in the form. The distinction should be made explicitly wherever a code is quoted in a tax context: the code describes the activity for statistics, and the tax position is decided under tax law, on the facts tax law requires.

What decides tax, if not the code?

Tax is decided by the tax law of the country concerned, applied to the facts of the case: the income, the turnover, the supplies made, the place of supply, the status of the person, and the other facts the law specifies. The tax authority decides the position, on a return, an assessment, or a ruling, and the decision is recorded in the tax record, not in the statistical register. A statistical code can be one fact among those facts, where the tax law refers to an activity, but the law, not the code, decides the consequence, and the activity is proved by the underlying facts, not by the code alone. A business that carries on an activity described in one category, but is coded in another, will be taxed on the activity it carries on, as proved by its records, not on the code it holds. A business that changes its code, without changing its activities, will not change its tax position by that act alone. The code follows the activity description. The tax follows the law and the facts.

What should a reader do where tax is in question?

A reader where tax is in question should take the question to the tax authority, or to a tax adviser, with the underlying facts, and should not take a code, a correspondence table, or an explanatory note as the answer. The reader should record the code as held, with its version and check date, as a fact about the register entry, and should record the tax question separately, with the tax law and the facts that the law requires. The two records should not be combined into a single statement that the code decides the tax, because that statement is false, and it will mislead any reader who relies on it. This site does not give tax advice, and it does not determine any reader’s code. It gives general information about a statistical classification, and it directs readers to the institute or register for the entry, and to the tax authority for the tax question. That division is the correct route, and it should be followed even where a code appears on a tax form.

Question	Holder	Record
What does the category cover?	Eurostat, explanatory note	Note for the category, version stated
What code is held for the unit?	National statistical institute or business register	Register entry, identifier, version, date
What tax applies?	Tax authority, under tax law	Tax record, return, or assessment
What activity was carried on?	Unit records, contracts, outputs	Underlying facts, not the code alone

The table keeps the four questions apart, with a different holder and a different record for each. A code is an answer to the second question, in part, and to the first, in general terms. It is not an answer to the third or fourth, and a citation that uses it as such should be corrected.

What is the limit, stated plainly?

The limit is stated in the guardrail on every guide on this site: statistical classification only, no determination of any reader’s code, confirmation with the national statistical institute or the business register, and general information, not advice on any reader’s registration. The limit applies with full force to tax. A code does not set a tax rate, decide a tax status, or determine what tax is owed. A change of code does not, by itself, change a tax position. A code in a tax register is a statistical and administrative label, and its effect, if any, is governed by tax law, not by the classification. A reader who needs a tax answer should seek it from the tax authority, with the facts, and should not rely on a classification guide for it.

Where is a code confirmed, and where is tax confirmed?

A code is confirmed with the national statistical institute or the business register that holds the record, and the meaning of the category is confirmed in the Eurostat explanatory notes. Tax is confirmed with the tax authority, under the tax law of the country concerned. Confirm the code with the institute or register, confirm the tax position with the tax authority, and keep the two confirmations in separate records.