Tax Updates for 2026: Key Points for Companies and Taxpayers

The 2026 fiscal year will be marked by significant tax changes affecting both companies and individual taxpayers. Although some rules are still pending development or final publication, there are measures already approved or confirmed that took effect in 2025 and will directly impact 2026 taxation.

The following information allows you to plan ahead and minimize risks as early as possible.

Reduced Rates for Microenterprises and SMEs

From fiscal periods starting in 2025—which will be declared in 2026—new reduced corporate tax rates apply for small businesses.

Microenterprises

Companies with a turnover of less than €1 million will apply a reduced rate system:

• 21% on the first €50,000 of taxable income.

• 22% on the remainder of the taxable base.

This measure aims to alleviate the tax burden for smaller businesses and promote growth.

Entities of Reduced Size

Companies with turnover between €1 million and €10 million will pay a temporary reduced rate of 24% in 2026.

Newly Created Companies

Maintain the 15% reduced rate during the first tax period with positive taxable income and the following period.

These measures are already included in current legislation and apply to corporate income tax for the 2025 fiscal year, declared in 2026.

Capitalization Reserve: 20% Reduction and Additional Incentives

From periods starting in 2025—with effects in 2026—the capitalization reserve is reinforced:

• The reduction percentage on the increase of equity rises from 15% to 20%, provided the increase is maintained for a minimum period of three years.

• Additional reductions are allowed if there is an increase in staff, provided the increment is maintained for three years.

This incentive is fully approved and offers an effective way to reduce the tax burden through reinvestment of profits in the company.

 

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Changes in Personal Income Tax: Obligation for Unemployment Benefit Recipients

For the 2026 income tax return (referring to the 2025 fiscal year), all recipients of unemployment benefits will be required to file a return, regardless of the amount received.

This is not strictly a tax change; the obligation is imposed by Social Security regulations governing unemployment benefits, with the aim of continuing to receive the subsidy.

This eliminates the previous threshold system, allowing for:

• Greater tax control.

• More uniform treatment of public benefits for tax purposes.

Verifactu Delayed Until 2027

The Government has confirmed that Verifactu will NOT be mandatory until 2027, once the final regulation is published.

Therefore:

• This is not a tax change applicable in 2026, although many companies may begin voluntary adaptation during 2025–2026.

• It will include software certification and automated record submission but will not affect 2026 tax filings.

It is important to clarify this point to avoid misinformation.

Other Measures Already in Force Affecting 2026

Although not strictly “2026 updates,” these measures will influence the fiscal environment:

Digitalization of Formal Obligations

The Spanish Tax Agency (AEAT) will continue expanding automation and digital data cross-checking, leading to more automatic audits and increased importance of accounting and tax software.

Review of Incentives and Deductions

The administration is reviewing special regimes and tax incentives. This does not imply changes already approved for 2026, but it creates a more demanding environment.

Ongoing Legislative Initiatives to Monitor

• VAT reforms and regional exemptions that may be finalized during budget proceedings.

• New obligations regarding international tax transparency or automatic information exchange.

• Possible adjustments or deferrals resulting from political agreements or budgetary pacts.

Advice: Maintain direct communication with your advisors and monitor official publications (BOE and AEAT) at key moments, such as the release of Royal Decrees and the approval of the Budget.

2026: A Year of Transition and Preparation

Not all updates are finalized, but there are already confirmed measures and others with high probability that will require adaptation:

• Increased information control.

• Greater digitalization.

• Sector-specific measures.

The difference between struggling with changes or leveraging them lies in anticipation and expert advice.

At Adlanter, we help interpret these changes, optimize your tax structure, and adapt systems to comply with new obligations in 2026.