Is Wikimedia Foundation a Trustworthy Charity?
Independent charity trust assessment · Updated March 26, 2026
48
Donor Caution Advised
Significant transparency concerns — conduct thorough research before donating
D
Wikimedia Foundation is a nonprofit organization with a Nerq Trust Score of 48.2/100 (D). Donor recommendation: Proceed with Caution. Operates Wikipedia and sister projects. 60M+ articles. Non-profit.
Overall assessment: Wikimedia Foundation is not recommended for donors without further due diligence.
Trust Score Breakdown
Financial Transparency (30%)65/100 Program Effectiveness (25%)49/100 Accountability (10%)59/100
Key Findings
⚠Financial Transparency: 65/100 — Good
⚠Program Effectiveness: 49/100 — Fair
⚠Governance: 44/100 — Fair
⚠Donor Trust: 49/100 — Fair
⚠Accountability: 59/100 — Fair
How does Wikimedia Foundation spend its money?
Financial Transparency score: 65/100 (Good).
Estimated program expense ratio: 52%.
A significant portion of funds may go to administration and fundraising.
Financial estimates derived from Nerq analysis. Verify with the charity's public filings (IRS Form 990) for exact figures.
How is Wikimedia Foundation governed?
Governance score: 44/100 (Fair).
Accountability score: 59/100 (Fair).
Governance practices raise concerns — donors should verify board independence and audit history.
Accountability measures are present but could be strengthened.
Frequently Asked Questions
Is Wikimedia Foundation a trustworthy charity?
Wikimedia Foundation has a Nerq Trust Score of 48.2/100 (D). Proceed with Caution. Conduct thorough research before donating.
How does Wikimedia Foundation spend donations?
Estimated program expense ratio: 52%. Financial Transparency score: 65/100. Review the latest Form 990 for detailed spending breakdown.
Is my donation to Wikimedia Foundation tax-deductible?
Check Wikimedia Foundation's IRS tax-exempt status on the IRS Tax Exempt Organization Search tool. Most registered 501(c)(3) nonprofits offer tax-deductible donations. Verify directly with the organization.
Does Wikimedia Foundation publish annual reports?
Transparency score: 65/100. Check the organization website or GuideStar/Candid for available reports.
How effective is Wikimedia Foundation at achieving its mission?
Program Effectiveness score: 49/100 (Fair). Limited evidence of program effectiveness — request impact data directly.
Who oversees Wikimedia Foundation?
Governance score: 44/100. Governance information is limited — review IRS Form 990 for board details.
How does Wikimedia Foundation compare to similar charities?
Wikimedia Foundation has an overall trust score of 48.2/100. Compare with similar nonprofits below or browse the full charity index to find top-rated organizations in the same cause area.
How we calculated this score
Wikimedia Foundation's trust score of 48.2/100 (D) is based on analysis of public financial filings, governance disclosures, program outcomes, and donor feedback signals. The score reflects 5 charity-specific dimensions: Financial Transparency (65/100, 30%), Program Effectiveness (49/100, 25%), Governance (44/100, 20%), Donor Trust (49/100, 15%), and Accountability (59/100, 10%).
Nerq indexes over 7.5 million entities across 26 registries, enabling direct cross-organization comparison. Scores are updated as new data becomes available.
Full methodology documentation · Machine-readable data (JSON API)
Last updated: March 26, 2026 · Data sources: IRS Form 990, GuideStar, Charity Navigator, public filings