| May 26, 2026 | Brad Lander for Congress | | $7,000 | Other | jefftk | Personal donations |
| May 26, 2026 | Doug Fiefia for State Senate | | $2,500 | Other | jefftk | Personal donations |
| May 26, 2026 | Burhan Azeem for State Senate | | $2,000 | Other | jefftk | Personal donations |
| May 21, 2026 | Doug Fiefia for State Senate | | $2,500 | Other | jefftk | Personal donations |
| Apr 30, 2026 | Will Dreher for State Rep | | $2,400 | Other | jefftk | Personal donations |
| Mar 30, 2026 | Michael Smith for Treasurer of Delaware | | $1,200 | Other | jefftk | Personal donations |
| Mar 30, 2026 | Manny Rutinel for Colorado | | $7,000 | Other | jefftk | Personal donations |
| Feb 16, 2026 | The AI Policy Network | | $50,059 | AI governance, policy, and advocacy | jefftk | Personal donations |
| Jan 6, 2026 | American Security Fund | | $50,156 | Other | jefftk | Personal donations |
| Jan 6, 2026 | Secure AI Project | | $50,156 | Other | jefftk | Personal donations |
| Dec 25, 2025 | The Alliance for Secure AI Action | | $10,543 | Other | jefftk | 25% of $42,172 donation; via donor advised fund — Personal donations |
| Dec 25, 2025 | GiveWell's All Grants Fund | | $10,543 | Other | jefftk | 25% of $42,172 donation; via donor advised fund — Personal donations |
| Dec 25, 2025 | Civic AI Security Program, Inc. | | $10,543 | Other | jefftk | 25% of $42,172 donation; via donor advised fund — Personal donations |
| Dec 25, 2025 | Tarbell Center for AI Journalism | | $10,543 | Other | jefftk | 25% of $42,172 donation; via donor advised fund — Personal donations |
| Dec 15, 2025 | Michael Smith for Treasurer of Delaware | | $1,200 | Other | jefftk | Personal donations |
| Oct 22, 2025 | Scott Weiner for Congress | | $14,000 | Other | jefftk | Personal donations |
| Oct 20, 2025 | Alex Bores for Congress | | $14,000 | Other | jefftk | Personal donations |
| Feb 28, 2025 | SecureBio | | $22,500 | Other | jefftk | Foregone portion of Jeff's salary January and February 2026.; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Jan 1, 2025 | SecureBio | | $61,000 | Other | jefftk | Foregone portion of Jeff's 2025 salary ($15k annualized from 2025-01-01 through 2025-08-15, $135k annualized for the remainder of the year); (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 8, 2024 | GiveWell's All Grants Fund | | $16,000 | Other | jefftk | 20% of $80,000 donation; via donor advised fund — Personal donations |
| Dec 8, 2024 | Horizon Institute for Public Service | | $64,000 | Other | jefftk | 80% of $80,000 donation; via donor advised fund — Personal donations |
| Sep 5, 2024 | One Day Sooner | | $100 | Other | jefftk | Personal donations |
| Dec 28, 2023 | Horizon Institute for Public Service3 | | $37,000 | Other | jefftk | see recommendation — Personal donations |
| Dec 23, 2023 | One Day Sooner | | $2,000 | Other | jefftk | see recommendation — Personal donations |
| Jul 12, 2023 | GiveWell | | $20,000 | Other | jefftk | All Grants Fund — Personal donations |
| Apr 14, 2023 | GiveWell | | $15,000 | Other | jefftk | All Grants Fund — Personal donations |
| Dec 16, 2022 | EA Infrastructure Fund | | $121,000 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Dec 16, 2022 | GiveWell | | $2,000 | Other | jefftk | All Grants Fund via Facebook Fundraisers — Personal donations |
| Nov 24, 2022 | GiveWell | | $50,000 | Other | jefftk | All Grants Fund via Facebook Fundraisers — Personal donations |
| Jun 8, 2022 | GiveWell | | $10,000 | Other | jefftk | Maximum Impact Fund Employer donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| May 26, 2022 | GiveWell | | $10,000 | Other | jefftk | Maximum Impact Fund — Personal donations |
| Feb 11, 2022 | Carrick Flynn for Congress4 | | $2,580 | Other | jefftk | Personal donations |
| Dec 12, 2021 | EA Infrastructure Fund | | $16,624 | Other | jefftk | Personal donations |
| Dec 12, 2021 | GiveWell | | $99,475 | Other | jefftk | Maximum Impact Fund — Personal donations |
| Nov 30, 2021 | EA Infrastructure Fund | | $34,081 | Other | jefftk | Facebook Giving Tuesday Match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Nov 30, 2021 | GiveWell | | $500 | Other | jefftk | Maximum Impact Fund via Facebook Fundraisers — Personal donations |
| Nov 30, 2021 | EA Infrastructure Fund | | $183,376 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Nov 29, 2021 | GiveWell | | $25 | Other | jefftk | Maximum Impact Fund via Facebook Fundraisers — Personal donations |
| Nov 23, 2021 | GiveWell | | $100,000 | Other | jefftk | Maximum Impact Fund — Personal donations |
| Nov 17, 2021 | GiveWell | | $400 | Other | jefftk | Maximum Impact Fund Employee-directed donation; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 16, 2020 | GiveWell | | $70,000 | Other | jefftk | Maximum Impact Fund — Personal donations |
| Dec 16, 2020 | EA Infrastructure Fund | | $5,000 | Other | jefftk | Personal donations |
| Dec 1, 2020 | EA Infrastructure Fund | | $4,498 | Other | jefftk | Facebook Giving Tuesday Match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 1, 2020 | EA Infrastructure Fund | | $114,555 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Dec 1, 2020 | EA Infrastructure Fund | | $10,000 | Other | jefftk | Employer donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 1, 2020 | Malaria Consortium | | $62,475 | Other | jefftk | Seasonal Malaria Chemoprevention via Facebook Fundraisers — Personal donations |
| Dec 1, 2020 | Malaria Consortium | | $7,497 | Other | jefftk | Seasonal Malaria Chemoprevention Facebook Giving Tuesday Match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Nov 30, 2020 | EA Infrastructure Fund | | $11,697 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Nov 20, 2020 | Effective Altruism Meta Fund | | $1,000 | Other | jefftk | Personal donations |
| Nov 20, 2020 | EA Infrastructure Fund | | $1,000 | EA infrastructure | vipul_donations | |
| Nov 19, 2020 | GiveWell | | $400 | Other | jefftk | Maximum Impact Fund Employee-directed donation; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 16, 2019 | Malaria Consortium | | $40,000 | Other | jefftk | Seasonal Malaria Chemoprevention via GiveWell — Personal donations |
| Dec 16, 2019 | Effective Altruism Meta Fund | | $25,115 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Dec 6, 2019 | EA Infrastructure Fund | | $25,115 | EA infrastructure | vipul_donations | Donation via Facebook Fundraisers |
| Dec 4, 2019 | Malaria Consortium | | $400 | Other | jefftk | Seasonal Malaria Chemoprevention Employee-directed donation; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 3, 2019 | Against Malaria Foundation | | $22,491 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Dec 3, 2019 | Against Malaria Foundation | | $12,495 | Other | jefftk | Facebook Giving Tuesday Match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 3, 2019 | Malaria Consortium | | $2,499 | Other | jefftk | Seasonal Malaria Chemoprevention Facebook Giving Tuesday Match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 3, 2019 | EA Infrastructure Fund | | $89,885 | EA infrastructure | vipul_donations | Donation via Facebook Fundraisers |
| Dec 3, 2019 | Effective Altruism Meta Fund | | $89,885 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Dec 3, 2019 | Malaria Consortium | | $25,037 | Other | jefftk | Seasonal Malaria Chemoprevention via Facebook Fundraisers — Personal donations |
| Nov 26, 2019 | Against Malaria Foundation | | $29,997 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Nov 26, 2019 | Against Malaria Foundation | | $6,000 | Other | jefftk | Employer donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Nov 24, 2019 | Against Malaria Foundation | | $2,501 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Dec 27, 2018 | Against Malaria Foundation | | $160 | Other | jefftk | PayPal 1% donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 27, 2018 | Against Malaria Foundation | | $16,000 | Other | jefftk | via PayPal Giving Fund — Personal donations |
| Dec 9, 2018 | Against Malaria Foundation | | $15,000 | Other | jefftk | via PayPal Giving Fund — Personal donations |
| Dec 9, 2018 | Against Malaria Foundation | | $150 | Other | jefftk | PayPal 1% donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 6, 2018 | Malaria Consortium | | $20 | Other | jefftk | Seasonal Malaria Chemoprevention via Facebook Fundraisers — Personal donations |
| Dec 5, 2018 | Against Malaria Foundation | | $17,800 | Other | jefftk | via PayPal Giving Fund — Personal donations |
| Dec 5, 2018 | Against Malaria Foundation | | $178 | Other | jefftk | PayPal 1% donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 3, 2018 | Against Malaria Foundation | | $179 | Other | jefftk | PayPal 1% donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 3, 2018 | Against Malaria Foundation | | $17,900 | Other | jefftk | via PayPal Giving Fund — Personal donations |
| Dec 2, 2018 | EA Infrastructure Fund | | $20 | EA infrastructure | vipul_donations | Donation to the EA Community Fund |
| Dec 2, 2018 | Effective Altruism Community Fund | | $20 | EA infrastructure | jefftk | Personal donations |
| Nov 27, 2018 | Malaria Consortium | | $7,497 | Other | jefftk | Seasonal Malaria Chemoprevention Facebook Giving Tuesday Match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Nov 27, 2018 | Against Malaria Foundation | | $19,992 | Other | jefftk | Facebook Giving Tuesday Match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Nov 27, 2018 | Malaria Consortium | | $9,697 | Other | jefftk | Seasonal Malaria Chemoprevention via Facebook Fundraisers — Personal donations |
| Nov 27, 2018 | Against Malaria Foundation | | $29,988 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Nov 26, 2018 | Against Malaria Foundation | | $400 | Other | jefftk | Employee-directed donation; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Nov 26, 2018 | Against Malaria Foundation | | $120 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Nov 19, 2018 | Against Malaria Foundation | | $40 | Other | jefftk | via Facebook Fundraisers — Personal donations |
| Nov 11, 2018 | Effective Altruism Community Fund | | $103,000 | EA infrastructure | jefftk | Personal donations |
| Nov 11, 2018 | EA Infrastructure Fund | | $103,000 | EA infrastructure | vipul_donations | |
| Dec 27, 2017 | Effective Altruism Community Fund | | $66,000 | EA infrastructure | jefftk | Personal donations |
| Dec 27, 2017 | EA Infrastructure Fund | | $66,000 | EA infrastructure | vipul_donations | Donation to the EA Meta Fund (known at the time as the EA Community Fund, and managed by Nick Beckstead). See https://www.jefftk.com/p/2017-donations for more background on the donation decision. The total amount donated by the couple for 2017 is $142,000, out of which 50% ($71,000) is outside GiveWell-recommended charities. $5,000 of this was already donated to the EA Community Fund earlier in the year, leaving $66,000 which is donated in this donation. |
| Dec 27, 2017 | Schistosomiasis Control Initiative | | $15,000 | Other | jefftk | via GiveWell — Personal donations |
| Dec 21, 2017 | Against Malaria Foundation | | $50,000 | Other | jefftk | via PayPal Giving Fund — Personal donations |
| Dec 21, 2017 | Against Malaria Foundation | | $500 | Other | jefftk | PayPal 1% donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Nov 20, 2017 | Against Malaria Foundation | | $400 | Other | jefftk | Employee-directed donation; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Jun 27, 2017 | Effective Altruism Community Fund | | $5,000 | EA infrastructure | jefftk | Personal donations |
| Jun 27, 2017 | Effective Altruism Community Fund | | $5,000 | EA infrastructure | jefftk | Employer donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Jan 5, 2017 | Against Malaria Foundation | | $6,000 | Other | jefftk | Personal donations |
| Jan 5, 2017 | Against Malaria Foundation | | $6,000 | Other | jefftk | Employer donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 30, 2016 | New Harvest | | $300 | Other | jefftk | Personal donations |
| Dec 24, 2016 | Against Malaria Foundation | | $10,000 | Other | jefftk | Personal donations |
| Dec 24, 2016 | EA Giving Group | | $80,100 | Other | jefftk | Personal donations |
| Dec 5, 2016 | Against Malaria Foundation | | $134 | Other | jefftk | Personal donations |
| Jun 25, 2016 | Against Malaria Foundation | | $55,000 | Other | jefftk | Personal donations |
| Jun 12, 2016 | Nurse Family Partnership5 | | $69 | Other | jefftk | Personal donations |
| Jun 12, 2016 | Against Malaria Foundation5 | | $11 | Other | jefftk | Personal donations |
| Jun 12, 2016 | Innovations for Poverty Action5 | | $20 | Other | jefftk | Personal donations |
| May 11, 2016 | Against Malaria Foundation | | $10,000 | Other | jefftk | Personal donations |
| Feb 24, 2016 | GiveDirectly | | $5,000 | Other | jefftk | Personal donations |
| Dec 28, 2015 | Centre for Effective Altruism | | $34,152 | Other | jefftk | Personal donations |
| Dec 28, 2015 | Against Malaria Foundation | | $79,152 | Other | jefftk | Personal donations |
| Aug 30, 2015 | Against Malaria Foundation | | $5,000 | Other | jefftk | Personal donations |
| May 28, 2015 | Centre for Effective Altruism | | $50,000 | Other | jefftk | Personal donations |
| May 28, 2015 | Centre for Effective Altruism | | $6,000 | Other | jefftk | Employer donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Dec 31, 2014 | GiveWell | | $6,443 | Other | jefftk | for distribution to their top charities — Personal donations |
| Dec 20, 2014 | GiveWell | | $57,763 | Other | jefftk | for distribution to their top charities — Personal donations |
| Aug 28, 2014 | GiveDirectly | | $20 | Other | jefftk | Donation in exchange for work; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Jul 28, 2014 | Centre for Effective Altruism | | $30,000 | Other | jefftk | Personal donations |
| Feb 1, 2014 | GiveWell | | $100 | Other | jefftk | Personal donations |
| Feb 1, 2014 | GiveWell | | $4,250 | Other | jefftk | for distribution to their top charities — Personal donations |
| Jan 8, 2014 | Centre for Effective Altruism | | $5,800 | Other | jefftk | Employer donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Jan 8, 2014 | Centre for Effective Altruism | | $30,000 | Other | jefftk | Personal donations |
| Dec 28, 2013 | GiveWell | | $13,000 | Other | jefftk | for distribution to their top charities — Personal donations |
| Dec 28, 2013 | Centre for Effective Altruism | | $10,000 | Other | jefftk | Personal donations |
| Dec 9, 2013 | GiveWell | | $1,550 | Other | jefftk | for distribution to their top charities — Personal donations |
| Aug 11, 2013 | Centre for Effective Altruism | | $15,000 | Other | jefftk | Personal donations |
| Aug 8, 2013 | Against Malaria Foundation | | $1,000 | Other | jefftk | Personal donations |
| Aug 8, 2013 | Centre for Effective Altruism | | $26,000 | Other | jefftk | Personal donations |
| Jul 1, 2013 | Against Malaria Foundation | | $10,000 | Other | jefftk | Personal donations |
| Jun 26, 2013 | Against Malaria Foundation | | $10,000 | Other | jefftk | Personal donations |
| Apr 26, 2013 | Against Malaria Foundation | | $6,000 | Other | jefftk | Personal donations |
| Apr 26, 2013 | Against Malaria Foundation | | $5,800 | Other | jefftk | Employer donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Feb 8, 2013 | Against Malaria Foundation | | $400 | Other | jefftk | Personal donations |
| Feb 4, 2013 | Against Malaria Foundation | | $6,000 | Other | jefftk | Personal donations |
| Feb 4, 2013 | Against Malaria Foundation | | $5,800 | Other | jefftk | Employer donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Jan 21, 2013 | Against Malaria Foundation | | $200 | Other | jefftk | Donation in exchange for work; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Nov 17, 2012 | Giving What We Can | | $4,200 | Other | jefftk | Personal donations |
| Nov 7, 2012 | 80,000 Hours | | $21,053 | EA infrastructure | jefftk | Personal donations |
| Sep 18, 2012 | Against Malaria Foundation | | $12,000 | Other | jefftk | Employer donation match; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Sep 18, 2012 | Against Malaria Foundation | | $19,000 | Other | jefftk | Personal donations |
| Sep 10, 2012 | Against Malaria Foundation | | $1,000 | Other | jefftk | Donation in exchange for work; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| Jul 7, 2012 | Against Malaria Foundation | | $150 | Other | jefftk | Personal donations |
| Jun 4, 2012 | Against Malaria Foundation | | $2,000 | Other | jefftk | Donation in exchange for work; (grey/italic row: not counted in Jeff's donation totals) — Personal donations |
| May 28, 2012 | Schistosomiasis Control Initiative | | $31 | Other | jefftk | Personal donations |
| Jan 29, 2012 | Schistosomiasis Control Initiative | | $500 | Other | jefftk | Personal donations |
| Jan 29, 2012 | Against Malaria Foundation | | $5,000 | Other | jefftk | Personal donations |
| Oct 17, 2010 | Oxfam America | | $10,000 | Other | jefftk | for monitoring and evaluation — Personal donations |
| Jul 23, 2010 | Oxfam America | | $75 | Other | jefftk | Personal donations |
| Jul 8, 2010 | Oxfam America | | $1,391 | Other | jefftk | Personal donations |
| Jun 3, 2010 | Oxfam America | | $25 | Other | jefftk | Personal donations |
| May 19, 2010 | Oxfam America | | $505 | Other | jefftk | Personal donations |
| May 10, 2010 | Oxfam America | | $14,000 | Other | jefftk | Personal donations |
| Feb 23, 2010 | Oxfam America | | $10 | Other | jefftk | Personal donations |
| Feb 3, 2010 | Oxfam America | | $10,000 | Other | jefftk | Personal donations |
| Nov 10, 2009 | Oxfam America | | $13,000 | Other | jefftk | Personal donations |
| Nov 4, 2009 | Oxfam America | | $719 | Other | jefftk | Personal donations |
| Sep 11, 2009 | Oxfam America | | $10 | Other | jefftk | Personal donations |
| Apr 15, 2009 | Oxfam America | | $50 | Other | jefftk | Personal donations |
| Apr 15, 2009 | Oxfam America | | $7,000 | Other | jefftk | Personal donations |
| Mar 19, 2009 | Oxfam America | | $30 | Other | jefftk | Personal donations |
| Feb 19, 2009 | Oxfam America | | $7,000 | Other | jefftk | Personal donations |
| Dec 26, 2008 | Oxfam America | | $3,400 | Other | jefftk | Personal donations |
| Dec 26, 2008 | Oxfam America | | $500 | Other | jefftk | Personal donations |
| Dec 15, 2008 | Oxfam America | | $360 | Other | jefftk | Personal donations |
| Oct 11, 2008 | Oxfam America | | $5,000 | Other | jefftk | Personal donations |
| Jul 26, 2008 | Oxfam America | | $1,500 | Other | jefftk | Personal donations |
| 2007 | Save the Children | | $336 | Other | jefftk | Personal donations |
| 2006 | Save the Children | | $336 | Other | jefftk | Personal donations |
| 2005 | Save the Children | | $336 | Other | jefftk | Personal donations |
| 2004 | Save the Children | | $168 | Other | jefftk | Personal donations |
| 2003 | Save the Children | | $168 | Other | jefftk | Personal donations |