Common questions about C40 Cities Climate Leadership's rating, finances, and Charity Commission status.
Is C40 Cities Climate Leadership a good charity? +
C40 Cities Climate Leadership scores 82 out of 100 (4 stars — Good) on CharityCompare's Clarity Score, our independent read of its UK regulator filings. Around 97% of its spending goes to charitable activities (3-yr avg) and its accounts are up to date. That reflects how transparent and financially healthy it looks on paper — it does not measure the real-world impact of its work, so treat it as one factor alongside the cause you care about. CharityCompare never tells you where to donate.
Is C40 Cities Climate Leadership a legitimate charity? +
The register data used for this profile lists C40 Cities Climate Leadership as a registered charity (charity number 1173124). Verify it on the official register: https://register-of-charities.charitycommission.gov.uk/charity-details/?regId=1173124&subId=0. Check the current entry and the identity of anyone requesting money. Registration does not verify a particular appeal; Clarity Score summarises filing transparency, not programme impact.
What is C40 Cities Climate Leadership's charity number? +
C40 Cities Climate Leadership's charity number is 1173124. Check that number on the official register (Charity Commission, OSCR or CCNI) or this CharityCompare profile before you donate — scammers sometimes reuse real numbers on fake appeals.
What is C40 Cities Climate Leadership's charity rating? +
C40 Cities Climate Leadership scores 82 out of 100 on CharityCompare (4 stars — Good). The Clarity Score (method v1.1) sums four pillars from UK regulator filings: Accountability & Transparency (40 pts), Financial Health (30), Financial Efficiency (20), and Community Support (10). Stars use the same bands as those labels — 90+ is 5★ Exceptional. It is not an impact ranking.
Does C40 Cities Climate Leadership have reviews and complaints? +
CharityCompare does not host public user reviews for C40 Cities Climate Leadership. Instead you get a filing-based Clarity Score, cause spend, reserves and red flags such as late accounts (none flagged on this profile). For formal complaints about a charity, contact the Charity Commission, OSCR, CCNI or the Fundraising Regulator as appropriate.
How much of my donation reaches C40 Cities Climate Leadership? +
Across the recent disclosed accounts used for this score, 97% of C40 Cities Climate Leadership's total spending went to charitable activities (3-yr avg across disclosed years). That is the closest official figure to "how much of your donation reaches the cause" — it is an average across all spending in the filing, not a pound-by-pound breakdown of an individual gift.
What are C40 Cities Climate Leadership's overheads? +
Across the recent disclosed accounts used for this score, fundraising costs were about 0% of total expenditure and fundraising plus separately reported governance figures amount to about 1% of expenditure (2023–2025, disclosed years); these categories can overlap, so this is not a distinct total of all administration costs at C40 Cities Climate Leadership. C40 Cities Climate Leadership's annual return for the year ending 31 December 2025 reports 78 employees paid more than £60,000, including 9 employees paid more than £100,000. The highest reported pay band is £150,001–£200,000 (2 employees). Individual salaries, including the chief executive's, are disclosed in the trustees' annual report rather than on the register.
How much income does C40 Cities Climate Leadership receive? +
C40 Cities Climate Leadership reported £16m total income in its 2025 accounts, based on UK regulator filings. Five-year trend: growing.
Are C40 Cities Climate Leadership's accounts up to date? +
Filing status: up to date (last filing 2026-09-03). CharityCompare flags late or missing accounts separately from the financial score.
Where is C40 Cities Climate Leadership based? +
C40 Cities Climate Leadership's registered contact address is in London (EC1Y 8RN). It tells the regulator it operates in England and Wales, with a focus on environment.
How much is C40 Cities Climate Leadership's chief executive paid? +
The Charity Commission register does not name individual salaries. C40 Cities Climate Leadership's annual return for the year ending 31 December 2025 reports 78 employees paid more than £60,000, including 9 employees paid more than £100,000. The highest reported pay band is £150,001–£200,000 (2 employees). Charities normally disclose the chief executive's pay, or the pay of their highest-paid staff, in the remuneration note of the trustees' annual report and accounts.
Where does C40 Cities Climate Leadership's money come from? +
C40 Cities Climate Leadership reported £16m total income for the year ending 31 December 2025. The largest sources were donations and legacies £16m (99%), other income £190k (1%).
Can I claim Gift Aid on a donation to C40 Cities Climate Leadership? +
The register does not record C40 Cities Climate Leadership as registered with HMRC for Gift Aid. Ask the charity before assuming a donation can be Gift Aided.
Are C40 Cities Climate Leadership's trustees paid? +
C40 Cities Climate Leadership's annual return for the year ending 31 December 2025 reports that no trustee received remuneration or other benefits from the charity.
When was C40 Cities Climate Leadership registered as a charity? +
C40 Cities Climate Leadership was entered on the register on 22 May 2017. It is also a company registered at Companies House (company number 10401717).
How does CharityCompare score C40 Cities Climate Leadership? +
We calculate a Clarity Score of 0–100 from four pillars in C40 Cities Climate Leadership's regulator filings: Accountability & Transparency (40 points — filing history, trustees, policies), Financial Health (30 — reserves, income trend, debt), Financial Efficiency (20 — cause spend and fundraising cost, on a graduated scale) and Community Support (10 — volunteer-to-staff ratio). An open statutory inquiry scores 0. The score measures reporting on paper, not programme impact. CharityCompare is free for donors, takes no commission on donations, and scores cannot be bought.
How often is this page updated? +
This profile was last updated on 6 September 2026 from the latest UK regulator data available to CharityCompare, and C40 Cities Climate Leadership's most recent accounts cover 2025. Scores and figures refresh whenever we re-ingest the register, so the page reflects our latest data pull rather than a one-off review.