Flat-Rate Tax Regime Calculator
Taxable income (coefficient)
€23.400,00
INPS contributions
€6100,38
Substitute tax (15%)
€2594,94
Net take-home
€21.304,68
Tax burden
28.98%
Indicative estimate, does not replace your accountant.
Frequently Asked Questions
Everything you need to know about the flat-rate regime
How is the flat-rate regime tax calculated?
Multiply revenues by the profitability coefficient to get the gross taxable base, subtract INPS contributions, then apply the 15% substitute tax (or 5% for startups in the first 5 years) on the fiscal base. E.g.: €30,000 × 78% = €23,400, minus INPS, then 15%.
What is the profitability coefficient?
It is a fixed percentage set by law based on the activity's ATECO code, determining how much of your revenue is considered taxable income. It ranges from 40% (trade, catering) to 78% (professionals) up to 86% (construction). The remaining part is treated as a lump-sum cost.
When does the reduced 5% rate apply?
The 5% rate applies to new activities for the first 5 years, provided you have not carried out the same activity in the previous 3 years and you meet the legal requirements. After the first 5 years the rate rises to 15%.
Does my data stay private?
Yes, and not because we promise it: this tool runs entirely inside your browser. What you type or upload never leaves your device, so it never reaches a server of ours and there is nothing we could keep, read or lose. You can check it yourself: open the page, disconnect from the internet, and the tool keeps working.
Do you store what I enter?
No. There is no database behind this tool: we do not store your files, your text or your results. When you close the tab nothing is left — not here with us, because it never arrived, and not anywhere else.
Do you profile me? Are you GDPR compliant?
We do not profile you: there is no account to create, we never ask for your email to use a tool, and we keep no profile of what you do. We are an Italian company and we work under the GDPR and the other European rules, with the privacy notice and the consent request in plain sight. One thing we say in full rather than hiding it behind a slogan: the ads on the page are Google's, and Google may use cookies to personalise them. You decide from the consent banner: if you say no the ads stay, but they are not personalised, and the tool works exactly the same.
If it is free, how do you make money?
From the ads on the page, and that is all. We do not sell your data, there is no hidden paid plan, there is no limit that eventually asks for your card, and you do not have to sign up. The ads pay for the servers and for the time we spend writing the tools: that is how we can keep them open to everyone.