Modelo 131: IRPF for Modules Regime

Modelo 131 is the quarterly declaration through which autónomos under estimación objetiva (módulos) make installment payments toward their IRPF (personal income tax). Unlike Modelo 130, which is based on actual income and expenses, Modelo 131 calculates the tax payment using fixed objective parameters assigned to each business activity.

Who must file Modelo 131

Autónomos who are taxed under the estimación objetiva regime, commonly known as módulos, must file Modelo 131. This regime is only available for specific business activities listed in the Ministerial Order published each year.

To qualify for módulos, the autónomo must meet certain requirements:

• Be registered in an activity included in the módulos list
• Not exceed the revenue limits established for the regime
• Not have formally opted out of estimación objetiva
• Not simultaneously carry out activities under estimación directa (with limited exceptions)

Who does NOT file Modelo 131:

• Autónomos under estimación directa (they file Modelo 130 instead)
• Professional activities subject to withholding tax (retención)
• Activities excluded from the módulos Ministerial Order

Filing deadlines

Modelo 131 is filed quarterly during the first 20 days of the month following the quarter's end:

• Q1 (January-March): April 1-20
• Q2 (April-June): July 1-20
• Q3 (July-September): October 1-20
• Q4 (October-December): January 1-30

If the last day falls on a weekend or public holiday, the deadline extends to the next business day.

If you choose to domicile the payment (automatic bank debit), the filing deadline is 5 days earlier (the 15th for Q1-Q3, January 25 for Q4).

How it works

The calculation for Modelo 131 is not based on actual income and expenses. Instead, it uses fixed objective parameters (módulos) assigned to each activity. These parameters may include:

• Number of employees (including the owner)
• Premises area in square meters
• Contracted electrical power (kW)
• Number of tables, vehicles, or other activity-specific elements

Using these parameters, Hacienda determines a prior net income for the activity. Corrective coefficients and reductions are then applied to that figure. The quarterly installment payment is a fixed percentage of the resulting net income, divided across the four quarters of the year.

Quarterly payment = Assigned annual net income x 4% (for non-agricultural business activities)

If the autónomo has withholdings (retenciones) applied by clients, these can be deducted from the installment payment.

Key differences from Modelo 130

	Modelo 130	Modelo 131
Regime	Estimación directa	Estimación objetiva (módulos)
Calculation basis	Actual income minus expenses	Fixed objective parameters
Complexity	Requires detailed record-keeping	Simpler and more predictable
Variable result	Depends on actual profit	Fixed amount regardless of real income
Deductible expenses	Yes, all documented expenses	Not applicable (already factored into módulos)

The main advantage of Modelo 131 is its simplicity and predictability: the autónomo knows in advance how much they will pay each quarter, regardless of how actual income fluctuates. However, this also means paying the same amount even in quarters with low revenue.

Relationship with the Declaración de la Renta

Installment payments from Modelo 131 are advances on your IRPF. When you file the annual Declaración de la Renta (Modelo 100), the income calculated through módulos is integrated into your overall tax calculation, and all installment payments made during the year are deducted.

Online filing

Modelo 131 is filed electronically through the Tax Agency's electronic headquarters. You will need:

• Digital certificate or Cl@ve PIN
• Data on the módulos applicable to your activity
• Information on applicable reductions and withholdings