Choosing between autónomo and SL in Spain is one of the structuring decisions for any entrepreneur starting or organising a sustained activity. Both statuses are perfectly legal and widely used, but they answer radically different legal, fiscal and social logics. Understanding the pros and cons of each lets you choose at the right moment, and avoid being stuck in a status no longer suited to your activity's growth.

This article compares the two statuses in detail across seven key dimensions (set-up, taxation, social charges, liability, accounting, image, transmission), gives the realistic fiscal switching threshold, and proposes concrete cases to help you decide. We also detail the actual costs year by year and the pitfalls specific to switching from one status to the other.

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Why is this autónomo vs SL comparison strategic?

Before going into the details, understand the stakes of the choice.

Two opposing legal logics

The autónomo is a natural person carrying out an economic activity without a distinct legal structure: you are the company, fiscally, legally and patrimonially. The SL (Sociedad Limitada) is a legal entity created at the notary, with share capital, partners, a director and limited liability. It is the equivalent of an Ltd or LLC.

The impact on your next 5-10 years

The status chosen conditions your fixed costs, your taxation, your asset protection, and your ability to grow (hiring, fundraising, partnerships). Starting as an autónomo and switching to SL later is possible but costly; choosing the SL directly when your activity remains small can needlessly weigh on cash flow.

The €50,000 switch threshold

As a general rule, the autónomo remains more advantageous up to about €30,000-€40,000 of annual profit, mixed between €40,000 and €60,000, and the SL becomes clearly more attractive above €50,000-€60,000. This range is a practical benchmark but varies with your personal profile and the context.

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What are the advantages of the autónomo?

The autónomo shines on administrative simplicity and fast start.

Fast and cheap start

Registering as an autónomo takes 1 to 7 days: census alta with the Agencia Tributaria (modelo 037 or 036) and RETA alta with the TGSS (modelo TA0521). Cost: €0 (unless you go through a gestoría, who will charge you €100-€200). No notary, no share capital, no Registro Mercantil registration. For details, see how to become an autónomo in Spain.

The Tarifa Plana at €80/month

New autónomos benefit from the Tarifa Plana: monthly cuota reduced to €80 for the first 12 months (24 months if income < €1,166). It is a major social advantage that saves around €2,500 in the first year and has no equivalent for SL directors.

Simplified accounting

The autónomo on simplified direct estimation only keeps three books (receipts, expenses, investment goods) and does not have to publish annual accounts. No balance sheet, no formal P&L, no audit. A gestoría will typically charge €60-€150/month to manage full accounting, against €200-€350/month for an SL.

No double taxation

The autónomo pays IRPF directly on profit. No intermediate corporate tax to pay then additional IRPF on dividends. For low profit levels (< €30,000), this simple scheme can cost less in total taxation.

Stop flexibility

To cease an autónomo activity, you simply file a modelo 037 baja with the Agencia Tributaria and a TA0521 baja with the TGSS. No dissolution procedure, no notary, no Registro Mercantil registration. Cessation can be effective in 1 week.

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What are the disadvantages of the autónomo?

The autónomo also has significant limits, especially above a certain activity level.

Unlimited liability on personal assets

The autónomo answers for their professional debts on all their personal assets: home, accounts, cars, etc. For risk activities (e-commerce with stock, advisory with exposed clients, restaurant, construction), it is a major risk. A client lawsuit or a bankruptcy can take the family estate.

Progressive taxation up to 47%

IRPF is progressive and the marginal rate reaches 47% above €300,000 of income. For an autónomo generating high profit, the tax soars while an SL can keep it at 23% (corporate income tax) plus 19-23% in case of dividend distribution. For details, see taxes for an SL.

High monthly cuota after the Tarifa Plana

After the 12 Tarifa Plana months, the autónomo's monthly cuota goes to €230-€590 depending on tramo. It is a fixed cost weighing even in months without invoicing. For mid-income autónomos (€1,700-€2,030/month net), the cuota is €350-€370/month.

Less credible image with large clients

Many large accounts (multinationals, public tenders, structured SMEs) prefer working with companies rather than individuals. The autónomo status can be a commercial brake on some demanding markets.

Difficulty hiring or partnering

The autónomo can hire employees (by registering as an employer with the TGSS) but it is heavier than for an SL. Partnering with another entrepreneur typically requires creating a legal structure (SL), making the autónomo status intrinsically individual.

No transmission or sale

You cannot sell an "autónomo activity" the way you would sell SL shares. Transmission of the activity (to your children, to a buyer) is administratively impossible: you would need baja, new alta, and reclaim the clientele case by case.

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What are the advantages of the SL?

The SL answers the autónomo's limits as soon as you exceed a certain scale.

Personal assets protected

The SL is a separate legal entity. Its liability is limited to the share capital (€3,000 minimum, €1 since the Ley 18/2022). In case of bankruptcy or lawsuit, the partners' and director's personal assets are protected except in cases of fraud or serious management default.

Tax optimisation above €50,000

The corporate income tax applies at the flat rate of 23% (15% in the first two profitable years). By combining salary (deductible) and dividends (taxed at 19-23% for the shareholder), a director can optimise their global tax burden compared to an equivalent autónomo. For the detailed mechanism, see taxes for an SL.

Commercial credibility

An SL inspires more confidence in large clients, banks, investors and international partners. It facilitates access to public tenders, calls for proposals, and contracts with multinationals. For many sectors, it is an entry condition.

Ability to structure shareholding

The SL allows partners with clearly defined shares, exit clauses, investor onboarding, and later partial or total sale of the company. It is also compatible with stock options for key employees.

Easier hiring

An SL can hire staff in a more structured way than an autónomo. Going to 5-10 employees is significantly more natural for an SL.

Transmission and succession

SL shares can be transmitted by succession or gift, allowing patrimonial planning impossible with the autónomo status. It is a major advantage for entrepreneurs who want to pass on their business tool.

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What are the disadvantages of the SL?

The SL has an administrative and fiscal cost that does not justify itself below a certain threshold.

Significant set-up costs

Setting up an SL costs €1,500-€3,000 in notary fees, share capital, Registro Mercantil registration, and gestoría fees. For the detail of steps, see the step-by-step guide to setting up an SL.

Heavier accounting

The SL must keep full commercial accounting (balance sheet, P&L, official books) and publish its Annual Accounts at the Registro Mercantil every year. A gestoría will charge €200-€350/month against €60-€150 for an autónomo, so €1,800 to €2,400 of extra annual cost.

No Tarifa Plana for the director

The director of an SL must register as an autónomo societario but is not entitled to the Tarifa Plana. Their cuota starts directly at €350-€590/month, a social cost of €4,200-€7,080/year. It is one of the main disadvantages of the SL in year one. To understand the link to social security, see everything about the NUSS number.

Double taxation (IS + IRPF on dividends)

Money leaving the company is taxed twice: once by IS (23%) on profit, once by IRPF (19-23%) on distribution as dividends. For low income levels, this double taxation can be less favourable than direct IRPF for the autónomo.

Complex dissolution procedure

Closing an SL requires formal dissolution (general meeting, appointment of a liquidator, payment of debts, distribution of residual assets) and a strike-off from the Registro Mercantil. Count 6-12 months and €1,500-€3,000 of costs.

Publicity obligations

An SL must publish its Annual Accounts every year (publicly visible at the Registro Mercantil). For entrepreneurs who prefer discretion on their results, it is a drawback.

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Worked numbers: €30,000 vs €100,000 of profit

To make the decision concrete, here are two compared scenarios.

Scenario 1: €30,000 of annual profit

As autónomo (with Tarifa Plana in year 1):

• Tarifa Plana cuota: €80 × 12 = €960.
• Estimated IRPF on €30,000 profit: ~€5,200 (with personal allowances).
• ‍Total: €6,160, or ~21% total burden.

As SL (1st year with IS 15%):

• Director cuota: €350 × 12 = €4,200.
• IS on €20,000 (after €10,000 director salary and expenses): 15% = €3,000.
• Director's IRPF on €10,000: ~€1,000.
• SL accounting costs: €250 × 12 = €3,000.
• ‍Total: €11,200, or 37% total burden.

€30,000 verdict: autónomo significantly more advantageous (€4,800 difference).

Scenario 2: €100,000 of annual profit

As autónomo (in year 3+, no Tarifa Plana):

• Top tramo cuota: €590 × 12 = €7,080.
• IRPF on €100,000: ~€33,000.
• ‍Total: €40,080, or 40% total burden.

As SL:

• Director cuota: €590 × 12 = €7,080.
• Director salary €40,000 (deductible IS).
• IS on residual profit €60,000 at 23%: €13,800.
• Director's IRPF on €40,000: ~€9,500.
• IRPF on €30,000 dividend at ~20%: €6,000.
• SL accounting costs: €350 × 12 = €4,200.
• ‍Total: €40,580, or 40.5% total burden.

€100,000 verdict: nearly tied, but the SL brings asset protection, credibility, and the option to keep a share in reserve in the company (taxed only at 23% instead of 47% marginal IRPF).

Scenario 3: €200,000 of profit

At €200,000, the gap clearly tips in favour of the SL: the autónomo's marginal IRPF exceeds 45%, while the SL keeps IS at 23% and allows optimisation via staggered dividends.

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When should you switch from autónomo to SL?

The timing of the switch is a strategic decision requiring upstream thinking.

Signals that it is time

• Annual profit lasting above €50,000.
• Risk volume increasing (large clients, large stock, employees).
• Need to structure shareholding (partner, investor).
• Will to transmit or sell the activity later.
• Refusal of large contracts because your status is judged insufficient.

How to proceed

The transition requires:

1. Creating the SL in parallel (see the SL roadmap).
2. Contributing significant assets of the activity to the SL (under certain fiscal conditions).
3. Gradually ceasing autónomo invoicing.
4. Filing the autónomo baja once the transition is complete.
5. Regularising with the TGSS (switch from standard RETA to autónomo societario).

Anticipating transition taxation

The cessation of autónomo activity can generate a taxable capital gain if you contribute asset elements (clientele, business goodwill). A few months of upstream planning with a gestoría can avoid abrupt taxation.

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Where to start to make the right autónomo / SL choice

Autónomo and SL in Spain are not two equivalent options: they are two tools suited to two different activity levels. The practical rule: start as autónomo if your activity is new or you will make less than €50,000 of profit in the next 2-3 years. Switch to SL when you sustainably exceed that threshold or you need asset protection, credibility, or structure. The full launch path for the autónomo route sits in how to become an autónomo in Spain and the tax detail in taxes and contributions for autónomos.

Avoid the two extremes: starting as an SL when your activity is still embryonic (disproportionate costs), or staying as an autónomo when your activity has long justified an SL (over-taxation and asset risk). Both pitfalls each cost several thousand euros a year.

Hesitating between the two statuses for your project, or want to plan the switch from one to the other? At gestoraz, we can precisely quantify both scenarios for your case, and advise you on the optimal switching timing based on your activity and personal goals.

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Official sources

• ‍Agencia Tributaria, autónomos and SL, sede.agenciatributaria.gob.es: modelos applicable to both statuses.
• ‍Tesorería General de la Seguridad Social, sede.seg-social.gob.es: RETA and autónomo societario regimes.
• ‍Ley 20/2007 del Estatuto del Trabajo Autónomo (BOE), boe.es/buscar/act.php?id=BOE-A-2007-13409: legal status of the autónomo.
• ‍Real Decreto Legislativo 1/2010 (Ley de Sociedades de Capital) (BOE), boe.es/buscar/act.php?id=BOE-A-2010-10544: legal status of SLs.
• ‍Ley 18/2022 de creación y crecimiento de empresas (BOE), boe.es/buscar/act.php?id=BOE-A-2022-15818: relaxation of the SL minimum capital to €1.
• ‍Ley 27/2014 del Impuesto sobre Sociedades (BOE), boe.es/buscar/act.php?id=BOE-A-2014-12328: corporate income tax and rate applicable to SLs.