Direct Estimation or Module-Based Taxation: Which Income Tax Method Suits Your Business?

If you are self-employed in Spain, one of the decisions that most affects how much income tax (IRPF) you pay is the method used to calculate your net income: direct estimation or objective estimation, better known as “modules”. They are neither equivalent nor interchangeable, and choosing the wrong one can cost you money year after year. This guide will help you decide.

How the Two Regimes Differ

Under direct estimation you are taxed on what you actually earn: income minus deductible expenses. There are two variants: normal and simplified. The simplified variant is the usual one for the average self-employed person; it has a turnover ceiling and allows you to deduct a provision for hard-to-document expenses (a percentage of net income, subject to an annual cap). It requires you to keep record books and have your expense documentation in order.

Under objective estimation (modules) you are not taxed on your actual result, but on an income figure calculated from “signs, indices or modules” set by ministerial order: employees, floor area of the premises, electrical power, vehicles, and so on. Your actual expenses barely matter. If business is going very well, the module system works in your favour; if you make a loss or have a weak year, you pay anyway.

One important point: your income tax regime does not change your self-employed contribution to Social Security, which depends on your actual net earnings. Also, modules for income tax are normally tied to the simplified VAT regime, so a change also affects your VAT returns.

Limits and Eligible Activities

You cannot simply choose modules if you feel like it: there are requirements. These are the main ones:

• Eligible activity listed in the annual modules order. This is a closed list with specific categories: small retail shops, bars and restaurants, freight or passenger transport, hairdressers, repair workshops, construction in certain cases, farming and livestock, among others. Liberal professions and professional services are, in general, excluded.
• Limits on revenue and purchases in the previous year. The order governing modules sets the maximums each year (one general limit and a lower one for the portion invoiced to other businesses and professionals). Always check the current figure with the Spanish Tax Agency before deciding, as these have been extended in various years and may change.
• Limits on staff and assets: the number of employees and other parameters specific to each activity.
• No previous opt-out, and not having been excluded for exceeding any of the limits.

If you exceed the limits, exclusion is automatic: you move to direct estimation (and to the general VAT regime) without having to request it.

When It Makes Sense to Switch

The key is to compare your actual income with the income under modules. In round numbers: if modules give you net income of €12,000 and your actual revenue minus expenses would be €5,000, you are paying tax on €7,000 of profit that does not exist, so direct estimation is better for you. Conversely, if you really earn €30,000 but are taxed on €12,000, modules are saving you a considerable amount.

It usually makes sense to opt out of modules when:

• You are starting a business or have a year of heavy investment and expenses.
• Your margins are low or you are making losses.
• You mostly invoice businesses, which require invoices with VAT and whose withholding may leave you with input VAT that you cannot recover under the simplified regime.
• You want to deduct staff costs or depreciation that modules reflect only approximately.

The opt-out must be made within the deadline set by the regulations, normally at the end of the year before the one in which you want it to take effect, or by filing the first instalment payment under direct estimation on time. Note that the opt-out has a minimum duration of several years and cannot be undone overnight, so it is worth working it out with a realistic forecast.

Common Mistakes

• Thinking that under modules “you don’t need to keep anything”: you still have obligations to keep invoices and books.
• Opting out of modules for income tax without realising that it also pulls your VAT into the general regime.
• Not simulating both scenarios with the real figures from the last financial year.
• Missing the opt-out deadline and staying tied for another year to a regime that does not suit you.

At Zythos Business, we compare each client’s actual business results with their income under modules, calculate the impact on income tax and VAT, and let you know well in advance of the opt-out deadline. That way you decide with numbers, not out of inertia, and keep your obligations up to date with the peace of mind of having a professional behind you.