Tax obligations Q1 2026

Tax obligations Q1 2026

We hope the following information is of your interest.

Please keep in mind that the deadline for filing the following declarations is April 20^th, 2026:

– Form 303, quarterly VAT return. Filing deadline for taxpayers included in the Immediate Supply of Information (“SII”) system is April 30^th, 2026.

– Form 349, (quarterly/monthly) EC Sales List (Intra-Community transactions disclosure statement).

– Form 111 (quarterly/monthly, as applicable), for withholdings and payments on account of Personal Income Tax on earned income and business activities income.

– Form 115 (quarterly/monthly), for withholdings and payments on account on income from the leasing of urban real estate.

– Form 123 (quarterly/monthly), for withholdings on investment income (interest, dividends paid, etc.).

– Form 216 (quarterly/monthly) declaration of payments made or accrued to non-residents (interest, dividends, royalties, etc.).

The filing deadline for the above returns by payment method direct debit is April 15^th, 2026 except for the monthly VAT return (taxpayers included is the “SII” system), in which case it is April 27^th,2026.

Corporate Income Tax

Instalment payment

Please note that 20^th April 2026 is the deadline for filing form 202 (general regime/large enterprises) and form 222 (tax consolidation regime) regarding the first instalment payment on account of Corporate Income Tax (CIT) 2026. Tax Groups and Large Enterprises must file this return (forms 222 and 202, respectively) even when there is no tax to pay.

The deadline for filing forms 202 and 222 using direct debit as payment method is April 15^th, 2026.

The following points should be kept in mind when calculating the instalment payment for Corporate Income Tax:

a) Entities with net turnover not exceeding EUR 6 million in the 12 months prior to the start of the reporting period:

The instalment payment calculation is based on the gross tax chargeable on the last CIT return filed (box 599).

The amount indicated in box 599 should be multiplied by 18 %.

b) Entities with net turnover of over EUR 6 million and under EUR 10 million in the 12 months prior to the start of the reporting period, or those that have opted to calculate instalment payment based on their current period’s taxable income:

The instalment payment is calculated on the taxable income for the period from the start of the entity’s reporting period till March 31^st, 2026. Deductible amounts include the offsetting of tax loss carryforwards from prior periods, credits, withholdings, and payments on account on income, and any instalment payments already made for the current reporting period. The prescribed percentage is the product of multiplying the tax rate by 5/7 and rounding down. For example, companies taxed at the general rate of 25 % will apply a percentage of 17 %.

c) Entities with turnover of at least EUR 10 million in the 12 months prior to the start of the reporting period:

The instalment payment is calculated as described above, with the following additional considerations:

– The minimum payable amount is 23 % of the accounting profit for the period from the start of the entity’s reporting period till March 31^st, 2026 (the accounting profit figure used may only be reduced by subtracting any advance payments already made corresponding to the same reporting period).

– The percentage to be applied will be the result of applying 19/20, rounded up, to the current tax rate of 25 %, that is, 24 %.

The table below summarizes the different methods of advance payment:

Offsetting of tax loss carryforwards

We remind you that there are limitations on the offsetting of tax losses, thus affecting the calculation of the instalment payment, based on the net turnover obtained by the entity in the previous year. In general, tax losses can be offset up to the amount of 1 million euros, except for particular cases.

Complementary Tax – Pilar 2

The transposition into Spanish law of the OECD Pillar II global minimum taxation rules has introduced a new tax obligation in the form of a Top-up Tax: Complementary Tax. This applies to large multinational and domestic groups when, in at least two of the four tax periods immediately preceding the start of the 2024 tax period, the net turnover of all entities forming part of the group is equal to or exceeds €750 million, in accordance with the consolidated financial statements of the ultimate parent entity.

Within this regulatory framework, forms 240, 241, and 242 are established.

– Form 240 – “Communication from the constituent entity declaring the informative declaration of the Complementary Tax”

The form 240 is intended to communicate to the State Tax Administration Agency the constituent entity that will act as the declarant of the informative declaration (form 241) of the Complementary Tax in order to guarantee a minimum global level of taxation in multinational groups and large national groups.

Regarding the filing deadline, communications relating to tax periods ending before March 31^st, 2025, must, in any case, be submitted within the period from April 30^th, 2026, to June 30^th, 2026.

– Form 241 – “Informative declaration of the Complementary Tax by multinational groups or large national groups”

It constitutes the main information return of the Top-up Tax (General Information Return or GIR). It is filed at group level and includes the information required for the Pillar II analysis on a global basis.

Regarding the filing deadline, communications related to tax periods ending before March 31^st, 2025, must, in any case, be submitted within the period from April 30^th,2026, to June 30^th, 2026.

– Form 242 – “Self-assessment of the Complementary Tax”

The purpose of form 242, is to self-assess the Complementary Tax accrued by the taxpayer included in the self-assessment, who is part of a large national or multinational group subject to it.

The self-assessment or self-assessments must be submitted regardless of whether the resulting tax liability is positive or zero, and may not be negative in any case, therefore the self-assessments submitted may not give rise to any refund.

The filing deadline is the period from July 1^st to July 27^th, 2026.