Effective giving starts from a simple observation: charities differ a great deal in how much good a dollar can do. If you care about results, it's worth asking which programs have strong evidence behind them and what they accomplish per dollar. This guide explains how that analysis works, who does it, and where its limits are.
What "effective giving" means
At its core, effective giving asks three questions about any charity: Does the program work? How much does it cost to achieve a result? Would more money do more? The idea is associated with the effective altruism movement and with philosopher Peter Singer, whose organization The Life You Can Save exists to help donors fund anti-poverty work they believe is highly effective.
It isn't about giving more, or giving to one kind of cause. It's about giving with your eyes open. That fits alongside the basics in our guide to how to vet a charity: the vetting guide asks "is this organization honest and well run?", and effective giving adds "and how much does it achieve?"
How GiveWell evaluates charities
GiveWell is a nonprofit that researches charities and publishes its reasoning. Its stated criteria are:
| Criterion | What GiveWell asks |
|---|---|
| Evidence of effectiveness | Has the program been rigorously studied, ideally more than once? Do real-world results match the research? |
| Cost-effectiveness | What does it cost to achieve an outcome such as a life saved? |
| Room for more funding | What would additional donations make possible that wouldn't happen anyway? |
| Transparency | Will the charity accept intensive investigation and public discussion of concerns? |
GiveWell calls cost-effectiveness "the single most important input" in its evaluations, but on its cost-effectiveness page it also says it does "not assess programs solely based on their estimated cost-effectiveness." It warns that "charities frequently cite misleading and overly optimistic figures for cost-effectiveness" and that its own estimates "are often based on limited information and are therefore extremely rough."
GiveWell's top charities
These are GiveWell's recommendations, as listed on its Top Charities page when we checked in October 2026 (the page said it was last updated September 2025). They reflect one evaluator's judgment, not a universal ranking.
| Charity (program) | What it does | GiveWell's estimate |
|---|---|---|
| Malaria Consortium (seasonal malaria chemoprevention) | Preventive antimalarial medicine for children during peak malaria months | About $7 to protect a child; ~$4,000 per life saved |
| Against Malaria Foundation (bed nets) | Distributes insecticide-treated nets | About $6 per net; ~$5,500 per life saved |
| Helen Keller Intl (vitamin A supplementation) | Vitamin A supplements for children under 5 | About $2 per child per year; ~$3,500 per life saved |
| New Incentives (vaccine incentives) | Cash incentives for routine childhood vaccines in Northern Nigeria | About $146 per infant vaccinated; ~$4,500 per life saved |
Per-life figures are GiveWell's 2022–2024 averages. Check the page for current numbers, since GiveWell revises them.
Pledges and giving communities
Some people make effective giving a long-term commitment.
- Giving What We Can's 10% Pledge is a public commitment to give at least 10% of your income to the organizations you believe can most effectively improve others' lives. The pledge page reports more than 11,000 people from 120 countries have taken it since it began in 2009.
- Smaller starts: the same organization offers a Trial Pledge, where you pick your own percentage and a duration of 6 months to 5 years, and a 1% student pledge.
- The Life You Can Save, founded in 2013 by Peter Singer and Charlie Bresler, offers a list of recommended anti-poverty charities, pooled cause funds and an impact calculator on its website.
If you like to set aside a giving budget once a year and decide later, a donor-advised fund is one tool people use. Simpler still: a dedicated savings jar you top up every month.
Fair critiques and limits
Effective giving has real critics, and some of their points deserve a hearing.
- Not everything that matters can be measured. Critics argue the approach favors programs whose effects are easy to count, like bed nets or vaccines, over work such as advocacy, arts or community building. Defenders, including Giving What We Can in its post "Do effective altruists only value short-term measurable outcomes?", respond that many in the movement care about hard-to-measure outcomes and systemic change.
- Estimates are uncertain. GiveWell itself says that "some degree of guesswork and judgment calls is unavoidable" and that the case for its top charities is "far from airtight" (GiveWell criteria).
- Values differ. How do you weigh saving a life against improving many lives, or local needs against global ones? GiveWell notes donors "may disagree with us about these inputs, depending on their individual values."
- Relationships matter. Giving to your neighborhood food bank, your old school or a friend's cause builds ties that a spreadsheet won't capture.
Balancing heart and head
You don't have to choose between giving with feeling and giving with evidence. Many donors split their giving on purpose:
- Decide your total for the year first. A fixed budget keeps you from giving reactively to every appeal.
- Set a "head" share for causes chosen by evidence: a top-rated global health charity or a fund run by an evaluator you trust.
- Set a "heart" share for the local and personal: the food bank down the street, a neighbor's medical bills, the team your kid plays on.
- Review once a year. Read each charity's update and adjust.
Research on the science of giving suggests that seeing the impact of your gift is part of what makes giving feel good. Effective giving and joyful giving can be the same gift.
Frequently asked questions
What is the most effective charity?
There's no single answer. It depends on what you want to achieve and how you weigh different outcomes. GiveWell publishes its own top charity recommendations, mostly global health programs, along with the reasoning and cost-effectiveness estimates behind them.
How does GiveWell estimate cost per life saved?
It builds cost-effectiveness models from program costs, research on how well the program works, and adjustments for local conditions. GiveWell says these estimates are rough and that it doesn't rely on them alone.
Do I have to give 10% of my income to give effectively?
No. The 10% Pledge is one option. Giving What We Can also offers a trial pledge where you choose your own percentage. Effective giving is about how you choose, not how much.
Is it wrong to give locally instead?
No. Many people give to both. Local giving supports your community and relationships. Evidence-focused giving may stretch dollars further. Splitting your budget lets you do both.