For donors in the US, UK, and The Netherlands it is easy to donate to most of the high impact charities and grantmaking funds we recommend using the Giving What We Can donation platform.
Giving What We Can is a project of The Centre For Effective Altruism. The Centre For Effective Altruism is a registered charity in England and Wales (Charity Number 1149828), a registered 501(c)(3) Exempt Organization in the USA (EIN 47-1988398), and a registered tax-deductible entity in the Netherlands (ANBI 825776867).
Donors outside the UK, US and Netherlands can donate to many of our recommended charities and funds using country-specific regranting organisations. These have been set up to help donors around the world donate to highly impactful charities while receiving a local tax-deduction or other government benefit.
Please bear in mind that some giving opportunities can be hundreds of times more effective than others, so it might be best to donate abroad while incurring international fees and missing out on a tax deduction if you believe the international organisation will do more to improve the lives of others.