Do you need an adviser (asesoría) or can you do it yourself?

Terms used

• IVA — IVA is Spain's value-added tax, which you charge on invoices and report in quarterly returns.
• IRPF — IRPF is Spanish personal income tax, which autónomos pay in advance through quarterly returns.
• Módulos — Módulos is a simplified IRPF method that estimates your profit from fixed indicators instead of your real income and costs.
• Cl@ve — Cl@ve is the government's electronic identification system for signing in to the tax agency's website.

Key rules

• Self-filing: Filing yourself suits only one activity, no employees, Spanish clients and few invoices.
• Language: If you cannot read official Spanish, an adviser lowers the risk of missing a notice.
• Fees: Adviser fees are monthly and vary by regime, invoice volume and employees, so compare several quotes.
• Switching: Move to an adviser as soon as you get a tax agency notice or add employees or foreign clients.

Adviser fees and late-payment interest rates change, so check current quotes with providers and current rates with the tax agency.

The short answer

Hire an adviser if your situation is anything beyond simple, if you do not read Spanish well, or if a missed deadline would hurt. Do it yourself only when everything about your activity is simple. A modest monthly fee is usually cheaper than the penalties and the time lost on mistakes.

When you can file yourself

Self-filing is realistic only if all of these are true:

• You have one activity and no employees.
• Your clients are all in Spain.
• You issue few invoices.
• Your quarterly returns are simple: IVA (modelo 303) and IRPF (modelo 130 or 131).
• You are comfortable using Cl@ve or a digital certificate on the tax agency's website.

Even then, the forms and notices are in Spanish. A common approach is to use an adviser for registration, then reassess once your routine is clear.

When you should pay for an adviser

Choose an adviser if any of these apply:

• You have several activities or income types, or you are unsure which IRPF method (módulos or direct estimation) fits you.
• You have employees, which brings payroll and extra returns (modelos 111 and 190).
• You invoice or buy across EU borders (modelo 349, EU VAT rules).
• You have foreign income or double-taxation questions as a new resident.
• You have rental income with withholdings, or claim costs such as a vehicle or a home office.
• You cannot read official Spanish. Tax and Social Security notices arrive electronically and must be opened within set deadlines.
• You have received a notice or inspection letter.

Most Spanish autónomos use an adviser, so hiring one is normal.

What an adviser costs

Fees are monthly and depend on your tax regime, how many invoices you have, whether quarterly returns are included, and whether you need payroll. Businesses with employees or many invoices pay more, and prices vary by city.

• Local gestoría: Get quotes from several in your town. Ask what is included.
• Online adviser: Usually tiered monthly plans, generally cheaper for simple cases, and some offer English support. Compare each provider's current plans.

The comparison below shows the options side by side.

What mistakes cost

Late filing without any contact from the tax agency brings a surcharge that rises with the delay, and paying it on time cuts it by 25%. Once the agency contacts you first, much heavier sanctions apply. The timeline below gives the exact steps. Missing quarterly deadlines is the most common way new autónomos lose money.

Make your choice

Use the decision tool below, then write down your choice and the reasons with the checklist. Note what would make you switch to an adviser, such as a notice from the tax agency or a new foreign client.

Choosing between options

Should you hire an adviser or file your own taxes as an autónomo?

• Use a local gestoría: You want face-to-face help in person, or you have employees, many invoices or a complicated mix of income. Get quotes from several local firms, since fees vary by city.

• Use an online adviser: Your case is fairly simple, you are comfortable working remotely and you want a lower monthly fee. Some offer English support. Compare each provider's plans.

• File yourself: You have one activity, no employees, only Spanish clients, few invoices and you read Spanish well enough for the forms.

Choose an adviser when complexity, language and penalty risk outweigh a modest monthly fee. Self-file only in simple situations, and consider an adviser for registration first, then review once your routine is clear.

Traditional adviser, online adviser or doing it yourself compared

Which route fits you

If your first Spanish tax year is simple, self-filing with the tax agency's free online service can work. If you have a tax event in the move year, foreign property or self-employment, start with an adviser. Waiting is the riskiest option, because deadlines pass whether or not you act.

The three options side by side

Whichever you choose, you stay liable for the tax, surcharges and interest even when an adviser files for you. Any claim against the adviser is a separate civil one.

Prices vary a lot. Get quotes from at least two or three providers before you decide.

Situations that point to an adviser

Choose an adviser if any of these apply:

• You had a tax event in the year you moved, such as a sale, a large payment, or income in two countries.
• You own property abroad.
• You are self-employed, or plan to become so.
• You have employees.
• Your income comes from several countries.
• You have already received a notice from the tax agency.

What to work out before you choose

Answer these four points. They decide your route:

1. First tax year: Did anything unusual happen in your first year in Spain, such as selling an asset, receiving a large sum or changing residence mid-year?
2. Foreign property: Do you own property, accounts or investments abroad?
3. Work situation: Are you employed, self-employed, running a company, retired or living off savings?
4. Country you come from: Which country were you resident in before, and do you still have income or ties there?

Your route follows from the answers:

• Adviser: if you answered yes to a tax event, foreign property or self-employment.
• Do it yourself with tools: if you have one employer, no foreign assets and no unusual events.
• Waiting: only until you have quotes or documents in hand. Set a date and keep to it.

When to switch to an adviser

If you start on your own or wait, move to an adviser as soon as one of these happens:

• A notice arrives from the tax agency that you do not fully understand.
• You start freelance work or hire someone.
• You buy or sell property, in Spain or abroad.
• You realise you may have missed a deadline.
• Your income or assets abroad turn out to be larger than you thought.
• You have spent several hours on one form and are still unsure.

Before you sign with any adviser

Ask these questions:

• What does the monthly fee include, and what costs extra, such as the annual return?
• Is there a set-up fee, a minimum term or a charge for handing over your records?
• Do they work in English, including documents and calls?
• Does their service cover foreign income and foreign assets?
• Will they act for you with their own access, so you never share your certificate or Cl@ve?
• Who watches your official notifications, and how fast will you be told?
• Do they hold professional liability insurance? Ask to see the policy and the sum insured.

Write down your choice

Keep a short note so you can check later why you chose what you did. For example:

Route chosen: online adviser. Reason: I am self-employed and own a flat abroad. Quotes compared: two. Switch trigger: if my income from abroad grows or I get a notice, I move to a traditional gestoría. Date: ___.

Timeline and deadlines

What a late filing costs over time

• File late on your own, before the tax agency contacts you: surcharge of 5%: within 3 months of the deadline

• File late on your own: surcharge rises to 10%: within 6 months of the deadline

• File late on your own: surcharge rises to 15%: within 12 months of the deadline

• File late on your own: surcharge of 20% plus late-payment interest: more than 12 months after the deadline

• Pay the surcharge on time to cut it by 25%: when you pay the surcharge

• If the tax agency contacts you first, sanctions of 50% to 150% can apply for unpaid tax from concealment, plus interest: once you receive a requirement from the tax agency

Record your tax help choice and reason

Your tax help choice note

• Write down which route you chose: a traditional gestoría, an online adviser, or doing it yourself.

• Write down the reason for your choice, such as a tax event in your move year, foreign property, self-employment or cost.

• List the monthly fee you were quoted and what it includes, or note that you will file yourself at no filing fee.

• Write down the triggers that would make you switch to an adviser, such as a notice from the tax agency, new foreign income or a change in your work situation.

• Add the date you chose and the date you will review the choice.

What to watch out for

• Missed quarterly deadlines cost money: A late or wrong quarterly return brings a surcharge and interest. If the tax agency contacts you first, sanctions can be much higher. You stay liable even when an adviser files for you. If you file yourself, put every quarterly deadline in your calendar. If you cannot keep to them, pay an adviser to do it.

• Official forms and notices are in Spanish: Tax agency and Social Security forms and notices are in Spanish. A misread notice can lead to a missed deadline or a wrong filing. If you do not read Spanish well, choose an adviser who works in English, such as an online one.

• Self-filing stops being safe when your situation grows complex: Employees, sales or purchases across EU borders, rental income with withholdings, several activities, foreign income or a company structure add forms and rules that are easy to get wrong. Hire an adviser as soon as any of these applies, before your next quarterly deadline.

Frequently asked questions

Can I file my own quarterly returns in my first year as an autónomo?

Yes, you can file your own quarterly returns if you have one activity, no employees, only Spanish clients and few invoices. You file the VAT return (modelo 303) and the income tax return (modelo 130 or 131) online with Cl@ve or a digital certificate. The forms are in Spanish.

Is it common to hire an adviser as a new autónomo?

Yes, most Spanish autónomos use an external gestor or asesoría for their tax and Social Security paperwork. Only a minority file everything themselves. A common approach is to hire an adviser for registration, then review the choice once your routine is clear.

What makes an adviser's monthly fee higher or lower?

An adviser's monthly fee depends on your tax regime, how many invoices you issue, whether quarterly VAT and income tax returns are included, and whether you need payroll. Fees are higher with employees or many invoices and vary by city. Online advisers are generally cheaper for simple cases, and some offer English support.

What happens if I file a quarterly return late?

If you file late before the tax agency contacts you, you pay a surcharge that grows the longer you wait, plus late-payment interest after 12 months. If the agency contacts you first, sanctions apply instead, which can be much higher.