Registering with the Tax Agency: the census declaration and its consequences

Pablo, a photographer in Seville, shot two weddings last spring and was paid 1,800 € for each, straight into his personal account. He planned to register as self-employed once the work became regular. When the Tax Agency asked about the payments, he learned that the activity had started with the first booking, not with his paperwork.

Two registrations, two administrations

Becoming self-employed in Spain, darse de alta como autónomo, is not a single step. It involves two separate administrations: the Tax Agency, which must know that a new business exists and how it will be taxed, and the Social Security, which must enrol the person in the special scheme for the self-employed and start collecting contributions.

This module deals with the tax side. The next one deals with the Social Security side. The two registrations are linked in practice, because they describe the same activity, but they follow their own rules, their own forms and their own deadlines, and forgetting either of them has its own consequences.

Who is self-employed

The definition comes from article 305 of the General Social Security Act. It covers natural persons over eighteen who carry on an economic or professional activity for profit, habitually, personally and directly, on their own account and outside the management and organisation of another person, whether or not they employ staff.

Each word of that definition matters. Habitual excludes an isolated operation. Personal and direct means that the person does the work. On one's own account and outside another's organisation separates the self-employed from employees. A photographer who takes bookings from different clients, sets his prices and uses his own equipment fits the definition well.

The same article lists people expressly included in the scheme, such as company directors who hold effective control of their company, members of certain professional associations and relatives who work habitually in the business. Those cases are covered in the course on choosing between self-employment and a limited company.

The census declaration comes first

Article 9 of the General Regulation on tax management, Real Decreto 1065/2007, requires anyone who is to form part of the Census of Businesses, Professionals and Withholding Agents to file a declaration of registration. The declaration must be filed before the corresponding activities begin.

The regulation gives a broad meaning to the start of an activity. An activity is considered to begin as soon as any supply, service or acquisition of goods or services takes place, any payment is made or received, or staff are hired, with the aim of producing or distributing goods or services.

That definition explains Pablo's problem. His activity did not begin when he felt ready or when the work became regular: it began with the first booking he accepted and the first payment he received. Buying a lens for professional use would have been enough on its own to mark the start.

What modelo 036 says about the business

The census declaration is filed on modelo 036. The Tax Agency's practical guide lists its pages: causes of filing, identification of natural persons, of legal persons and entities and of their permanent establishments, representatives, economic activities and premises, VAT, income and corporate taxes, withholdings, partners, successors and beneficial owners.

A self-employed person fills only the pages that apply: identification as a natural person, the activities and premises, VAT and income tax. The guide states that the model can be used by any taxpayer who must meet the formal obligation of filing the declaration.

Article 9 of the regulation lists what the same declaration can be used for beyond registration. Among the most relevant for a newcomer: communicating the general or special VAT regime that applies, and waiving the objective estimation method or the simplified modality of direct estimation for income tax.

• Obtain or confirm the tax identification number
• Declare the activities carried out and where they take place
• State the VAT regime that applies to the business
• Choose or waive the income tax methods that allow a choice
• Declare, if needed, the obligation to withhold on payments to others
• Request inclusion in the register of intra-EU operators when trading with other member states

Registration is not the end of the census story. Article 10 of the regulation requires a modification declaration, as a rule within one month of the facts that justify it, for instance a new activity or a change of address. Article 11 sets the same one-month period for the de-registration after ceasing all activity.

Invoicing with withholding: 15 % or 7 %

Registration also changes how a professional is paid by businesses. Article 95 of the Personal Income Tax Regulation, Real Decreto 439/2007, applies a 15 per cent withholding on the gross income paid in return for a professional activity. The client withholds that amount and pays it to the Tax Agency on the professional's behalf.

The same article provides a reduced 7 per cent rate for taxpayers who start a professional activity, during the tax period in which they start and the two following ones, provided they carried on no professional activity in the year before. The professional must inform the payer, who keeps the signed communication.

Three years later, the start-up period is over. The same 1,000 € invoice then carries a 15 % withholding, 150 €, and Ana receives 850 € plus VAT. Her annual income tax return settles the account: if the withholdings exceed the tax due on her whole income, the difference is refunded; if not, she pays the balance.

Withholding only applies when the payer is a business or a professional required to withhold. Private individuals who hire a professional do not withhold, which is why a self-employed person with private clients carries more of the income tax burden through the quarterly instalment described below.

The quarterly income tax instalment

Self-employed people in the direct estimation method also make quarterly instalments of income tax. Article 110 of the IRPF Regulation sets the amount at 20 per cent of the net income from the first day of the year to the last day of the quarter, minus the instalments of earlier quarters and, for professionals, the withholdings already suffered.

When the net business income of the previous year does not exceed 12,000 €, each instalment is further reduced according to a table: 100 € when it does not exceed 9,000 € (article 110.3 c).

Article 109 exempts professionals from the instalment when, in the previous calendar year, at least 70 per cent of the income of the activity was subject to withholding. In the start year, the percentage is measured over the period to which the instalment relates. A translator who works only for agencies is often in that case.

The exemption is a test to repeat, not a status acquired once. A professional who gains private clients during the year can fall below the threshold and become liable to the instalment. Checking the share of withheld income at the end of each quarter avoids missing a return that has quietly become due.

The Tax Agency's electronic office presents the corresponding form as modelo 130, the instalment for businesses and professionals in direct estimation. Article 111 of the regulation sets the deadlines: the first three quarters between the first and the twentieth of April, July and October, the fourth between the first and the thirtieth of January.

VAT from the first invoice

The census declaration also switches on the VAT obligations. From the first operation, the new self-employed person charges VAT on invoices, deducts VAT on business purchases and files the periodic self-assessment, quarterly in the usual case. The course on declaring and paying VAT covers that mechanism in detail.

What matters at registration is the regime declared on modelo 036. Most newcomers fall under the general VAT regime, which is the one described in that course. Special regimes exist for certain activities, and the census declaration is the place where the choice or the waiver is communicated.

A practical order of steps

Because the census declaration must precede the activity, and because buying equipment already counts as a start, the order of steps matters. The safest sequence is to file modelo 036 first, then request the Social Security registration, and only then accept the first booking or buy the first professional tool.

• Describe the activity precisely, since the census and the Social Security both ask for it
• Decide where the activity takes place: at home, in rented premises or at clients' sites
• File modelo 036 before any sale, purchase, payment or hiring linked to the activity
• Request registration in the self-employed scheme, as explained in the next module
• Tell business clients whether the 7 % start-up withholding applies, in writing
• Put the quarterly deadlines for VAT and, if due, the income tax instalment in the diary

Pablo's situation shows the cost of the reverse order. By working first and registering later, he placed himself outside the census for operations the Tax Agency could see. Regularising afterwards is possible, but it is always more expensive and more stressful than registering the day before the first booking.