King Charles III will voluntarily release his tax returns, becoming the first British monarch to do so. The financial details will be published on Thursday, marking a shift towards greater openness and accountability within the royal family. The palace stated the decision aligns with ongoing modernization efforts and was initiated by the King himself, who previously disclosed his finances as Prince of Wales. This move follows increased political pressure for transparency, particularly after controversies surrounding Prince Andrew. While British monarchs are not legally required to pay taxes, Charles has chosen to do so voluntarily, a practice also followed by his mother, Queen Elizabeth II. His income largely derives from the Duchy of Lancaster, a private estate generating over 20 million euros annually, alongside the Sovereign Grant – a government fund of approximately 120 million euros last year allocated for official duties and palace maintenance.