The fundamental difference: a progressive tax versus a flat one
As a self-employed person in Spain, your business income is folded into your general personal income tax base and taxed progressively: the more you earn, the higher the marginal rate applied to each additional bracket of profit, up to over 45-47% in the top brackets depending on your region.
A limited company, by contrast, is taxed under corporate tax at a flat 25% rate on profit, regardless of whether that profit is €20,000 or €200,000 (with a reduced 15% rate during the first two profitable financial years for newly created companies). This structural difference, progressive versus flat, is why the right legal form changes with your profit level, rather than one form being 'better' in the abstract.
The tipping point: from what profit level the switch pays off
with €30,000 in annual net profit, a self-employed person would likely be taxed at a marginal personal income tax rate around 30%, while an SL would pay a flat 25% on that same profit, a difference that likely doesn't offset the added costs of accounting and the paperwork of setting up and maintaining a company.
With €80,000 in annual net profit, the self-employed person would start paying much of that top bracket at 37-45% personal income tax, while the SL would still pay a flat 25%, a difference already sizeable enough that, in most cases, it comfortably outweighs the extra costs of operating as a company. As a general benchmark, the tipping point tends to sit between €50,000 and €60,000 of annual net profit, though it varies by region and personal circumstances.
- Low net profit (up to €30,000-€40,000): self-employed personal income tax usually still pays off versus SL costs.
- Medium net profit (€40,000-€60,000): decision zone, depends on your region and other personal factors.
- High net profit (above €60,000): the flat 25% corporate tax rate usually clearly outweighs progressive personal income tax.
What the simple tax-rate comparison leaves out
Comparing only the tax rate is incomplete for two important reasons. The first is that an SL involves additional fixed costs (accounting, mandatory double-entry bookkeeping, commercial registry filings) that a self-employed person doesn't carry to the same extent, typically running €100-€300 a month depending on the business's complexity.
The second, more important reason, is that if you need to withdraw the company's profit to live on (rather than reinvesting it or leaving it accumulated), that withdrawal is taxed a second time, usually as a dividend or as director's salary, which reduces part of the apparent tax saving of the 25% rate versus personal income tax. An SL pays off more clearly when you can leave profit inside the company to reinvest, not when you need to extract all of it every year.
Other factors beyond pure taxation
A limited company also offers liability limited to the capital contributed, unlike a self-employed person, who is personally liable with their own assets for business debts, a relevant factor if your activity carries significant risk of claims or debts from third parties, independent of taxation.
It's also worth considering the impact on your future public pension: an SL director's social security contribution base can be managed with more flexibility than a traditional self-employed contribution, which has long-term implications for your retirement worth reviewing with a tax advisor, not just with a tax-rate calculator.
How to decide with judgment in your specific situation
The practical framework: calculate your expected stable annual net profit (not one exceptional year), compare the personal income tax marginal rate you'd face against the flat 25% corporate tax rate, subtract the added accounting costs of an SL, and weigh whether you need to withdraw all the profit every year or can leave part of it reinvested.
This decision connects directly to your broader wealth planning: just as we cover asset pledging strategies for large estates, choosing the right legal structure for your business is a legitimate tax-optimization decision, not a gray area, as long as it's executed with proper professional advice for your case.
Apply This Knowledge to Your Real Finances
eXcenda combines net worth, expenses, simulations, and macro context into a single app so you can move from theory to action.
Frequently Asked Questions
As a general benchmark, from around €50,000-€60,000 of annual net profit, the point where the personal income tax marginal rate clearly overtakes the flat 25% corporate tax rate, though it varies by region and personal situation.
15% during the first two profitable financial years, and a general 25% from then on, versus the progressive personal income tax rate of a self-employed person, which can exceed 45-47% in the top brackets.
Because an SL involves additional fixed accounting costs, and because if you need to withdraw the company's profit to live on, that withdrawal is taxed a second time as a dividend or salary, reducing part of the apparent tax saving.
Generally yes, it limits liability to the capital contributed to the company, unlike a self-employed person, who is personally liable with their own assets for business debts.
Yes. An SL director's contribution base can be managed with some flexibility compared to a traditional self-employed contribution, with long-term implications for your pension worth reviewing with an advisor, not just weighing the immediate tax saving.