We match donations to any charity and introduce you to super-effective charities. Our goal is to make charitable giving as impactful as possible.
Harvard University
- Tweets 289
- Following 989
- Followers 446
- Likes 570
Giving Multiplier retweeted
Today marks halfway through 2026, so we're announcing the launch of the 50/50 Pledge!
The pledge is simple: give half or more of your annual donations to high-impact nonprofits recommended by experts. Keep the rest for the causes that mean the most to you.
Giving pledges typically focus on 𝘩𝘰𝘸 𝘮𝘶𝘤𝘩 you give. The 50/50 Pledge is about 𝘸𝘩𝘦𝘳𝘦 you give.
Why? Because the most impactful charities can often do 100x more good per dollar than typical charities. For example, @EvidenceAction's Deworm the World program protects children from parasitic worm infections in low-income countries for under $0.50 per child.
But most of us also care about supporting causes close to our hearts, like a local food bank or animal shelter.
Giving Multiplier’s 50/50 Pledge strikes a balance between the "feel good" and "do good" of charitable giving, with a clear goal to work toward each year.
Hear from our co-founder Prof. Joshua Greene in the video below:
2
2
4
244
𝗪𝗲’𝘃𝗲 𝗿𝗮𝗶𝘀𝗲𝗱 𝗼𝘂𝗿 𝗺𝗮𝘁𝗰𝗵𝗶𝗻𝗴 𝗿𝗮𝘁𝗲𝘀!
You can now earn up to 90% on top of your donations using Giving Multiplier. That's up to $45 added to your $50 donation.
Why now? Thanks to hundreds of generous matching donors, we have a strong surplus of match funds, and we want to put them to work sooner rather than later.
(Matching rates are assessed periodically and are subject to change.)
Made with AI
1
2
4
537
Try us out: givingmultiplier.org/#donate
1
15
ICYMI: Our co-founder Harvard psychologist Joshua Greene was recently interviewed for Amanda Knox's (@amandaknox) “Hard Knox” podcast!
📽️ Watch/listen here: amandaknox.substack.com/p/ho…
2
104
Giving Multiplier retweeted
This might be the deadliest decision you've never heard of
piped.video/watch?v=BJYfSfh7…
4
9
1,880
🎙️ Our co-founder, Harvard psychologist Joshua Greene, joins Amanda Knox (@amandaknox) on the latest Hard Knox podcast.
They cover the neuroscience of moral decision-making, bridging political divides, and the science behind Giving Multiplier.
Link below👇
1
4
988
🌴 Our Summer newsletter is out!
• Announcing our new "50/50 Pledge" initiative: a commitment to donating smart and from the heart, whether you give a little or a lot
• Featuring @EvidenceAction's highly cost-effective Deworm the World program, which treats children for parasitic worm infections for less than $0.50
• Sharing recipient stories from our "Pods Fight Poverty" campaign with @GiveDirectly
📰 Read the newsletter: hs.givingmultiplier.org/?hs_…
68
Giving Multiplier retweeted
Our June Newsletter is out! Learn about our newest blogs, our recent participation in Skoll Week, and some of the most up-to-date research on tracking zero-dose children and the effectiveness of conditional and unconditional transfers. Read to get our latest news: mailchi.mp/newincentives/new…
1
3
173
Today marks halfway through 2026, so we're announcing the launch of the 50/50 Pledge!
The pledge is simple: give half or more of your annual donations to high-impact nonprofits recommended by experts. Keep the rest for the causes that mean the most to you.
Giving pledges typically focus on 𝘩𝘰𝘸 𝘮𝘶𝘤𝘩 you give. The 50/50 Pledge is about 𝘸𝘩𝘦𝘳𝘦 you give.
Why? Because the most impactful charities can often do 100x more good per dollar than typical charities. For example, @EvidenceAction's Deworm the World program protects children from parasitic worm infections in low-income countries for under $0.50 per child.
But most of us also care about supporting causes close to our hearts, like a local food bank or animal shelter.
Giving Multiplier’s 50/50 Pledge strikes a balance between the "feel good" and "do good" of charitable giving, with a clear goal to work toward each year.
Hear from our co-founder Prof. Joshua Greene in the video below:
2
2
4
244
🔗 Learn more: givingmultiplier.org/pledge
32
Giving Multiplier retweeted
@GiveDirectly has been named one of TIME100's Most Influential Companies of 2026, recognized under both the 10 Most Influential Social Good Companies and Pioneer categories.
We thank @TIME for this recognition and we remain unwavering in our mission to accelerate the end of extreme poverty.
Learn more here ↓
time.com/collection/time100-…
#TIME100Companies
2
3
6
654
Giving Multiplier retweeted
The tools to save lives from #malaria already exist. The challenge is reaching people where they are with healthcare they trust.
This #WorldMalariaDay, help close the gap between health services & people.
Let’s make what works go further.
Donate now ➡️ brnw.ch/21x1Ts3
4
7
165
Giving Multiplier retweeted
We are pleased to share CATF’s 2025 Annual Impact Report, showcasing our effectiveness in advancing climate progress around the world.
1
1
3
172
Giving Multiplier retweeted
We’ve partnered with @GiveWell to study ways to make our cash programs ever more cost-effective (1/6)
1
2
16
4,141
New on Giving Multiplier: We now support expert-curated funds!
Earn a matching boost when you pair a donation to your favorite charity with a donation to an expert fund from: @GiveWell (global health & poverty), @AnimalCharityEv (animal welfare), or @FoundersPledge (reducing global risks).
Perfect for anyone who wants to maximize their charitable impact by trusting expert evaluators to help.
Try it out: GivingMultiplier.org
4
6
748
Our March newsletter is out featuring:
📋 Results from our 2nd annual grant investigation survey
🎧 A podcast episode on our "value of information" grants
📊 New data on a water chlorination program that led us to change course
Read it on our blog ⬇️ bit.ly/4sJE3Gt
3
4
511
Giving Multiplier retweeted
It was a pleasure to be interviewed on the Giving Intelligence Podcast! We talked about how to identify highly effective charities, bridging donors' heart & head motivations, and the psychological science behind Giving Multiplier (@GiveMultiplier).
open.spotify.com/episode/3wN…
1
1
3
82
❄️ Our Winter newsletter is here!
🔎 2025 was our best year yet: 3,000 donors raised $2.1 million, with $1.3M supporting our expert-recommended charities. See the difference it made.
💉 Learn about @NewIncentives, one of our top charities that has encouraged nearly 100 million vaccines in Nigeria since 2019.
🥕 Meet the person who raised $5,000 for charity using Giving Multiplier with a creative fundraiser: running 40 miles for his 40th birthday while in a carrot costume!
Newsletter: mailchi.mp/givingmultiplier/…
3
6
590