Spanish autónomo or US LLC: taxes, costs and banking for your business

Compare the same business in both structures: profit, distributions, IRPF, social security, contracts and banking. Find out where a US LLC adds value.

A US LLC can give a Spain-based professional a distinct business identity, corporate banking arrangements and a framework for contracts, ownership and growth. To compare it properly with operating as a Spanish autónomo, use the same activity, revenue and expenses on both sides, then assess tax residence, social security and the full cost of running the structure.

Perhaps a US client wants to contract with a company, your invoices are paid by ACH, or you are bringing another person into the business. Those are useful reasons to consider an LLC. A comparison based only on a headline tax rate will miss much of its value.

This guide concerns an individual who is tax-resident in Spain, is not a US tax resident and provides services. It does not apply Spanish conclusions to freelancers living in the UK, Germany or another country. Investment income, product sales and a change of residence require their own analysis.

Spanish autónomo or US LLC: what actually changes?

An autónomo carries on business personally. An LLC is an entity formed under US state law. It has members, management arrangements and the ability to enter contracts and own assets. You are comparing ways of organising a business, not choosing between two tax percentages.

Company ownership and personal social-security status are separate questions. You can own an LLC while carrying on work that still requires registration in Spain. A sound structure deals with both the company and the person performing the work.

The LLC's practical strength is a business that can acquire its own contractual relationships, hold assets and accommodate changes in ownership. Tax treatment belongs within that structure; it is not a substitute for one.

Our guide to the benefits of a US LLC for non-residents examines ownership, liability and continuity in more detail. Here, the focus is its comparison with an individual business in Spain.

Federal tax treatment of a foreign-owned LLC

One member and several members are different starting points

A single-member LLC has one owner. Unless it makes a different valid election, the IRS treats it as a disregarded entity for federal income-tax purposes. Its activity is considered through the owner, while the legal entity continues to exist.

A domestic LLC with more than one member is generally classified as a partnership unless it elects otherwise. Adding an owner changes the analysis. Foreign-owned describes ownership; it does not, on its own, establish an exemption or determine which return applies.

Where services are performed matters

For personal services, the IRS generally determines the source of income by where the work is performed. Payment in dollars, a US customer or a US receiving account does not independently move the work to the United States.

A nonresident's activity performed outside the US, without taxable US-source income or ECI, may produce no federal income-tax liability. ECI is income effectively connected with a US trade or business. Interest, dividends, licensing and work physically carried out in the US must be analysed under the rules for those income types.

That federal result is separate from Spanish taxation and from state requirements. A foreign-owned disregarded LLC with reportable owner or related-party transactions may need Form 5472 attached to a pro forma Form 1120 even where no federal income tax is payable. A properly planned annual calendar covers the obligations that actually apply.

Spanish IRPF and profits retained by the LLC

Spain makes its own classification of the entity. The DGT Resolution of 6 February 2020 sets out three characteristics for treating a foreign entity as fiscally transparent: no entity-level income taxation, income attributed to members when earned and preservation of the income's character.

Where this treatment applies, articles 86 to 89 of the Spanish Income Tax Act, or LIRPF, govern attribution. Leaving cash in the LLC does not itself defer tax on income attributed to its owner. The relevant event is earning the income, rather than merely transferring cash to a personal account.

Retaining funds can still be a sensible business decision. The LLC can build working capital, hire suppliers and fund product development. Separate accounting profit, available cash and owner distributions when deciding what to reinvest. A recognised deductible expense can reduce profit; a cash reserve or any purchase of an asset does not automatically do so.

If the activity has no positive taxable profit, there is no positive business profit to tax. The accounts must support that outcome, while filing duties, social-security contributions and other income are considered separately. Our guide to LLC profit, cash and distributions explores those distinctions.

Spanish IRPF depends on the tax base, autonomous community and personal circumstances, among other factors. A marginal rate applies to a slice of income, not to all invoices. Applying a high marginal rate to an autónomo's gross revenue and comparing it with an LLC's net profit would not tell you which structure works better.

Compare the same business before estimating any benefit

Consider a professional resident in Spain who performs all services there. This is an illustrative example, not a client result or a tax forecast. Revenue is collected and expenses paid within the year. VAT, social security, advisory costs, asset purchases, opening balances and tax adjustments are excluded.

This example uses actual revenue and expenses, not the parameters of Spain's módulos regime. If your activity qualifies for objective estimation, review módulos versus direct estimation before using these figures in your decision.

The EUR 30,000 transfer is not an additional operating expense. Nor does it establish that only EUR 30,000 is taxable income. With no personal transfer and every other assumption unchanged, cash would be EUR 78,000 and the operating result would still be EUR 78,000.

The full comparison then adds each structure's costs, applicable contributions and tax adjustments. A properly documented individual business may also deduct software, contractor fees and collection costs. Spanish rules for calculating business income include articles 28 and 30 LIRPF; those expenses are not exclusive to LLCs.

An LLC should therefore be assessed on the differences it genuinely creates: suitable contracts, verified banking costs, ownership arrangements, investment capacity and continuity. Any quantified improvement needs an identifiable cause. Removing legitimate expenses from the sole-trader column would manufacture a benefit rather than measure one.

VAT and social security need separate decisions

VAT follows the transaction

An autónomo can provide cross-border services. Under the general business-to-business rule, the relevant place is where the business customer receiving the service is established. A service supplied from Spanish VAT territory to a business established abroad can fall outside Spanish VAT, subject to the applicable conditions and exceptions.

Outside scope, exempt, zero-rated and reverse charge are different treatments. Consumer sales, electronic services, property-related work and other special categories can follow different rules. For an LLC, the actual establishment and transaction also matter; a formation certificate alone does not settle the VAT position.

RETA follows the work and the applicable coverage rules

Article 305 of Spain's General Social Security Act considers habitual, personal, direct work on one's own account, among other requirements. Owning an LLC does not automatically remove RETA registration for someone working from Spain. Cross-border activity can also require examination of coordination rules.

Contributions are not simply a charge on invoice value or an identical monthly amount for everyone. Net earnings, the contribution base and individual circumstances enter the calculation. Exentax coordinates the US structure with Spanish advice so that the business plan includes both sides from the start.

Banking and payments can make the LLC commercially useful

An LLC offers a coherent US business identity for customers and financial providers: legal name, EIN, activity, members and authorised signatories. This can be valuable when a customer's procurement process expects a US entity or its accounts-payable team pays through ACH.

The aim is not to collect bank accounts. Each account should do a job. One may receive USD revenue, another handle supplier payments, and a multicurrency service support EUR needs and conversion. Provider eligibility depends on the business, owner residence, addresses and documentation.

Spanish autónomos are not categorically excluded from Stripe, professional banking or multicurrency services. Compare the actual functions offered to each profile, together with the complete route from customer payment to settlement, conversion and final spending.

Measure the route, not just the advertised rate

Look at the cost of receiving money, exchanging it, refunding a customer and paying a supplier. Consider when the balance becomes available, operating limits and who may authorise transactions. An appealing FX rate is only one part of the arrangement.

Our LLC banking architecture guide examines how providers can serve complementary purposes. For this comparison, the central question is whether each proposed account solves a real commercial requirement with clear costs and responsibilities.

A separate company balance can also make it easier to plan working capital. Setting aside money for suppliers, annual administration and investment provides a clearer picture of what the business can use, without treating every incoming payment as personal spending money.

Contracts, privacy and the business itself

Where properly documented, the LLC can own intellectual property and other assets and become the contracting party for services. An Operating Agreement can organise contributions, decision-making, admission of members and succession. This becomes useful well beyond opening the first account.

Limited liability does not replace suitable insurance, carefully drafted contracts or separation of personal and company funds. Its scope depends on law, guarantees and the facts. The practical benefit is a company whose property and obligations can be identified, not an absolute promise about every personal asset.

Public-record privacy also needs a deliberate choice: what the state publishes, which address serves each purpose and what the financial provider must know. Privacy from the public is different from withholding the owner's identity from a bank. Accurate documentation supports a reliable, usable structure.

How Exentax helps you make the decision

We start with your revenue, expenses, residence, place of work, customers and objectives. We then compare the individual business, the LLC and, where relevant, a Spanish company. No universal revenue threshold can replace that assessment.

A useful quote separates formation and implementation from ongoing support, state requirements, returns and Spanish advice. It also identifies provider charges and any work outside the agreed scope. You should understand the first year and the continuing arrangement before proceeding.

When the LLC fits, our team coordinates its documents, EIN, account-opening preparation, payment arrangements and follow-up. We review existing contracts and outstanding invoices before changing the billing entity. Your current business needs to continue operating while the new structure is put in place.

If you are also considering a European company, our Estonian OÜ versus US LLC comparison addresses that choice separately. Its company and tax rules are not imported into this Spanish example.

See how we structure an LLC

Exentax turns that choice into an operating company: accounts with a purpose, accessible records, clear responsibilities and a team familiar with your business. A well-designed LLC supports growth. Its value is demonstrated through your activity, rather than a tax saving borrowed from somebody else's circumstances.

Questions about Spanish autónomo status and a US LLC

Can I own an LLC and remain registered as an autónomo?

Yes. Company ownership and the social-security treatment of your own work are distinct matters. Who provides the service, where the work takes place and how the activity is organised determine the responsibilities of each party.

Does an LLC automatically allow more expense deductions?

No. The connection to the business, supporting records, timing and the rules of the relevant tax determine deductibility. The benefit is in organising genuine business activity and costs properly, not in changing personal spending into a company deduction.

How much revenue makes an LLC worthwhile?

There is no single threshold. Margin, administration costs, banking and contractual needs, ownership and growth plans all matter.