# Global trends in testamentary and solidarity wills > Live situation record from CLSTR: https://clstr.news/situations/global-trends-in-testamentary-and-solidarity-wills > Updated: 2026-09-13T11:30:42.000Z. Sources: 7. Developments: 2. Civil society organizations and legal initiatives are increasingly promoting testamentary planning and solidarity wills to support humanitarian causes. In Argentina, a network of 14 organizations is working to demystify testamentary donations, utilizing a legal framework that allows individuals to designate portions of their estates—ranging from 33.3% to 100% depending on the presence of forced heirs—to social assistance projects. This trend toward charitable legacies is also observed in other regions. In Chihuahua, Mexico, campaigns offering discounts on legal fees aim to encourage estate organization. Meanwhile, in Spain, the use of solidarity-based wills has seen a 46% increase over the last five years. Data indicates a significant rise in inquiries through platforms like Haz Testamento Solidario, with women representing 66% of those making such wills in 2025. These legacies provide critical funding for NGOs, such as Manos Unidas, which reported that testamentary gifts accounted for approximately 20.9% of its total income in 2025. ## Timeline ### 2026-09-13: Testamentary planning and solidarity wills see increased engagement Testamentary planning is rising, with Chihuahua offering 50% discounts on estate procedures and Spain seeing a 46% increase in solidarity wills benefiting NGOs. 5 sources. https://clstr.news/cluster/testamentary-planning-and-solidarity-wills-see-increased-engagement ### 2026-08-25: Argentine NGOs promote solidarity wills for social aid A network of 14 Argentine organizations is promoting solidarity wills, allowing citizens to donate portions of their estates to social causes while adhering to national inheritance laws. 2 sources. https://clstr.news/cluster/argentine-ngos-promote-solidarity-wills-for-social-aid --- Cite as: Global trends in testamentary and solidarity wills. CLSTR, https://clstr.news/situations/global-trends-in-testamentary-and-solidarity-wills