Support COTAP’s Operations and Reduce Your Carbon Footprint

100% of donations on this page go to support COTAP’s startup costs, operating expenses, and expansion.  To offset your CO2 emissions through one or more COTAP projects, with 90% of your donation going to your chosen project(s) and 10% going to COTAP, please see our Offsetting Options above.

Donations by Mail

Please send checks or money orders payable to Carbon Offsets To Alleviate Poverty (COTAP) to:

Carbon Offsets To Alleviate Poverty (COTAP)
1200 Mt Diablo Blvd, Ste 111
Walnut Creek, CA 94596

Please include “COTAP Ops & Expansion” in the memo section of your check so we can distinguish your check from a carbon offset donation to COTAP’s projects. To receive an emailed donation acknowledgement letter instead of a mailed one, please be sure to include your email address.

Employee & Retiree Donation Matching Programs

This is an easy way to DOUBLE your contribution. 100% of employer matching funds are utilized for COTAP’s startup costs, operations, and expansion.

Matching Gift and Volunteer Grant information provided by Powered by Double the Donation

Grants and Large Gifts

For supporters seeking to provide significant general support, to support specific areas of COTAP’s infrastructure, or to provide a multi-year sequence of milestones-based grants.  Contact us at donate [at] cotap [dot] org.

Corporations and Foundations

Please see our Corporate Partnerships & Foundation Challenge Grants page.  COTAP is a unique and meaningful way for your company or foundation to demonstrate leadership on climate change while engaging employees, customers, and/or the general public.  For companies, campaigns don’t require outlays outside of existing employer matching or marketing budgets.


  • Currently, general COTAP donations are not a part of our integrated checkout process and can’t be mixed with offset contributions to projects in the same transaction.  You can do both, but currently they must be done separately.
  • Unless a specific breakdown is included for the project(s) you wish to support, a check received by mail will be considered a general COTAP donation and 100% will be used for COTAP’s startup, operating, and expansion costs.


For questions or inquiries regarding any of the above, please email us at

Support COTAP’s Operations & Expansion

US$15 /tonne | 90% to Projects | Tax-deductible (U.S.) For other amounts, please use

Donor Advised Funds

Testimonials & Beneficiary Profiles

IRS 501(c)3 status & Tax Deductibility

COTAP is a registered non-profit under section 501(c)3 of the IRS Code. For U.S. residents, the entire amount of your contribution is tax-deductible.

The Types of Projects COTAP Supports

Browse COTAP’s Portfolio

In Nicaragua, Uganda, Malawi, and India » our meaningful and transparent projects cotap