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Knowledge for your business

Guides, insights and practical advice. On tax, finance and business growth, without unnecessary jargon.

Royal Decree on electronic invoicing approved

On March 24, 2026, the Council of Ministers approved the Royal Decree that requires the use of electronic invoices between companies and…

March 26, 2026 Afianza Avant

Tax

Solidarity Tax on Large Fortunes: changes in 2026

It was born in 2023 as a temporary tax that was going to be collected for two years. However, the struggle between…

March 19, 2026 Afianza Avant

Tax Growth

How to file a supplementary tax return, step by step

Have you made a mistake when filing your income tax return? Tranquillity! It has a solution. The supplemental statement allows you to…

March 5, 2025 Afianza Avant

Tax Growth

What grants and subsidies are available to start a business?

Starting a business is an exciting project, but it also involves facing financial challenges. Fortunately, there are numerous aids and grants designed…

January 7, 2025 Afianza Avant

Knowledge for your business

Royal Decree on electronic invoicing approved

Latest publications

Solidarity Tax on Large Fortunes: changes in 2026

How to file a supplementary tax return, step by step

What grants and subsidies are available to start a business?