Rethink Priorities
Cross-Cause Fund

Allocate your donation to the highest-impact funds
based on rigorous, cause-neutral research

Contribute i Rethink Priorities does not charge any fees for managing the Cross-Cause Fund. 100% of your donation is directed to the recommended grantees.

The problem

Where should you give
to do the most good?

Most advice focuses on picking the best charity within a cause, but the deeper challenge is knowing how to value very different outcomes, e.g., helping current humans, future generations, or animals. Across these areas, interventions vary enormously in cost-effectiveness and in their chances of success. Prioritization can significantly increase the impact of your donations, but getting it right is genuinely difficult. Most donors don't have time to do the necessary research, and few resources exist to help them navigate these decisions at scale.

The solution

Cross-Cause Fund

The Rethink Priorities Cross-Cause Fund pools donations from multiple donors and allocates them across cause areas, such as Global Health and Development, Animal Welfare, and Global Catastrophic Risks via research-vetted, high-impact giving funds. Rethink Priorities has spent almost a decade building the research infrastructure to take this problem seriously.

We start from the question of where a marginal dollar is likely to do the most good across all cause areas we cover, and we allocate accordingly.

The Cross-Cause fund is designed to be:

Rigorous and cause-neutral

Our analysis uses the best empirical and philosophical evidence available. We make our assumptions explicit and let research drive the recommended allocation.

Driven by cost-effectiveness

We support impact-focused funds that help the most beneficiaries they can per dollar. Our decisions are backed by 8 years of research and an extensive understanding of each cause area and the philanthropic landscape.

Transparent and accountable

We publish and regularly update our fund allocations and explain the reasoning behind them. Our methodology and latest updates and improvements are documented and publicly available.

Donor Compass

Not sure if the default allocation reflects your values? Use our interactive Donor Compass! Answer a few quick questions and explore how your moral and empirical assumptions translate into a personalized allocation across our recommended funds.

Donor Compass

This is an ambitious and well-executed cross-cause modeling exercise. Rethink Priorities is well placed to do this work, given their quantitative expertise and years of research across each of the causes being compared. For donors who are undecided on how to allocate across causes, I think this is a serious contribution and a valuable tool for structuring their decision. I'm impressed with how thought-through the model is. There are modeling choices I would have made differently, but I'm only able to identify them because they've done a good job of explaining their model structure and assumptions, and soliciting feedback for continued improvements.

David Rhys Bernard Program Officer, Coefficient Giving

I decided to direct my annual donations to the Cross-Cause work at Rethink Priorities because I think cause prioritization is one of the most important questions in philanthropy. The empirical and moral uncertainties involved are genuinely hard to navigate as an individual donor, with existing advice relying heavily on personal judgment rather than formal frameworks. RP is one of the rare organizations with the research track record and rigor that make them well-positioned for this work.

Péter Drótos RP Donor

Subscribe for updates

Be the first to know about our new cross-prioritization
materials, latest updates, and impact reporting.

Support Rethink Priorities

The research behind the Cross-Cause Fund and Donor Compass was made possible by individual donors. If you find these tools useful, consider supporting us so we can keep refining our models and updating our data.