Flat-rate coefficient
Under the regime forfettario (flat-rate scheme) the profitability coefficient depends on the code: it ranges from 40% to 86% and changes the bill radically.
Individuals · Getting started
Choosing your ATECO code
It looks like a box to fill in, yet it is the choice that carries three financial consequences: how much tax you pay under the flat-rate scheme, which social security fund you pay into, and whether you must register with the Registro Imprese (Companies Register). Getting it wrong is not beyond repair, but a correction does not apply retroactively.
01 · The code
What the ATECO code is and what it really does
ATECO is the statistical classification of economic activities used in Italy. Each activity has a numeric code organised in levels: section, division, group, class, category and subcategory. The code you give the Agenzia delle Entrate (the Italian Revenue Agency) is the one at the finest level of detail.
It began as a statistical tool, but over time it has become the pivot on which concrete tax and social security decisions rest. Today the code does not just describe what you do: it determines how much you pay.
Social security fund
Some codes lead to the INPS Gestione Separata (the fund for freelancers at the Italian social security institute), others require registration as an artisan or trader, with fixed contributions.
Companies Register
Business activities require registration with the Chamber of Commerce and payment of the annual fee; pure self-employed professional work does not.
Requirements and permits
Some activities require professional qualifications, a SCIA (certified start-of-activity notice) filed with the Comune, or registration with specific professional rolls or registers.
02 · The method
Start from what you do, not from the code
The correct route runs the opposite way to how most people approach it: you do not look for a code that sounds right, you describe the activity precisely and arrive at the code that represents it.
The useful questions are few and concrete: what you deliver to the client, in what form, with what tools, and who the client is. A photographer who sells shots to a company and one who runs a shop with printing and framing sit under different codes, with different coefficients.
Describe the real activity
Not your professional label but the economic transaction: what you produce, for whom, with what organisation.
Check the coefficient
If you are thinking of the flat-rate scheme, look straight away at the coefficient that code carries: the whole difference between 67% and 78% lies there.
Check the fund
The code decides whether you are a self-employed worker or a business owner, and so whether you pay proportional or fixed contributions.
Check your obligations
Companies Register, SCIA, professional requirements: you find out now, not when the first inspection arrives.
Be careful with codes starting with 96.09 or similar catch-all categories: they are used when no other code describes the activity, but they draw more attention during checks and have to be justified.
03 · Multiple activities
When you carry on more than one activity
You can have more than one ATECO code. One is the main code, the others are secondary. The main code is not the one you prefer: it is the one that generates the largest turnover.
- The main code determines the coefficient applied to all revenue, if you are under the flat-rate scheme and the activities fall into the same category.
- If the activities belong to groups with different coefficients, they need careful handling: each group of revenue takes its own coefficient.
- The main code can change over time: if the relative weight of the activities is reversed, it must be updated with a notice.
- Adding a secondary code is a change of details, not a new registration: it is notified and does not involve a new partita IVA (Italian VAT number).
The typical case
The consultant who also starts selling recorded courses, or the artisan who opens an online shop.
- Selling your own products online and selling other people's products are classified differently
- Live training and pre-recorded digital content do not sit under the same code
- Adding trade can trigger registration with the Companies Register and fixed contributions
- Better to assess it before issuing the first invoice for the new activity
04 · Correcting it
What happens if the ATECO code is not the right one
An inaccurate code almost never leads to an immediate penalty. It does, however, produce financial consequences that build up quietly and come to light when someone goes looking.
- Wrong coefficient under the flat-rate scheme: you have paid too much or too little tax, and in the second case the difference must be recovered with interest.
- Wrong social security fund: the most serious case, because it means recovering the contributions not paid into the correct fund.
- No registration with the Companies Register for an activity that required it: it can be regularised, with the back annual fees.
- Activity carried on without the required qualifications: here the problem leaves the tax sphere and becomes an administrative one.
The change is notified to the Agenzia delle Entrate and, for businesses, to the Chamber of Commerce. It takes effect from the date of the notice: previous years remain as they are, and may need to be put right with the tools of ravvedimento (voluntary correction).
05 · The overview
Coefficients by activity group
| Activity group | Coefficient | In practice |
|---|---|---|
| Professions and other services | 78% | Consultants, professionals, services to individuals and businesses |
| Construction and real estate | 86% | The highest: almost nothing is recognised as a flat-rate cost |
| Commercial intermediaries | 62% | Agents and representatives |
| Wholesale and retail trade | 40% | Recognises high costs: check that yours really are |
| Street trading in food | 40% | Same logic as trading from fixed premises |
| Street trading in other products | 54% | An intermediate coefficient |
| Food and drink | 40% | Bars, restaurants, food and drink service |
| Other economic activities | 67% | Catch-all: check against the specific code |
The table is indicative and gives the order of magnitude. The exact coefficient is read from the precise code, not the group: two neighbouring subcategories can fall into different bands.
Frequently asked
The questions that keep coming up
Can I choose a code with a lower coefficient to pay less?
No, and it is not worth trying. The code must match the activity you actually carry on: it is a declared fact that can be checked by cross-referencing invoices, clients and the nature of the services.
If the code does not stand up to comparison with reality, reclassification means recovering taxes and contributions, with interest and penalties.
Will changing code make me lose the flat-rate scheme?
Not in itself. It does, however, change the coefficient that applies from the date of the change, and in some cases the social security fund.
The overall effect should be assessed before notifying the change, because with some combinations the bill gets worse.
How many secondary codes can I have?
There is no numerical limit, but each code you add brings its own obligations. Declaring activities you do not carry on creates expectations at the various bodies and complicates checks.
The practical rule is to declare what you really do and to update it when your situation changes.
Does the ATECO code affect electronic invoicing?
Not the format directly, but it affects the nature of the transaction and the VAT regimes that apply, which must be stated correctly on the invoice.
It also affects the activity codes required by some portals and calls for grants, which use them as an eligibility criterion.
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Let's talk
The code is chosen before you open, not after
Tell us what you will actually do and for whom: from there we reach the right code, the coefficient and the fund, with the figures in front of you.