Frequently Asked Questions


If your questions are not answered below please feel free to contact:

Membership Department

The Xerces Society

628 NE Broadway, Suite 200

Portland, OR 97232

(855) 232-6639

What is Xerces’ federal tax identification number?
Our tax identification number is 51-0175253.

How much does membership cost?
We offer both monthly and annual memberships. For monthly memberships we ask that you donate a minimum of $5 per month. The suggested donations for our annual memberships are:

  • $35
  • $60
  • $100
  • $300
  • $500
  • $1,000+

What are the benefits of membership?
The biggest benefit of your membership is the knowledge that you are directly helping to protect invertebrates and conserve their habitat. Additionally, you will receive two issues of Wings: Essays on Invertebrate Conservation each year. Members are also welcome to purchase books from our online store, such as our best seller, Attracting Native Pollinators: Protecting North America’s Bees and Butterflies. Books in our store are typically priced below retail.

When does my membership expire?

Monthly memberships

Monthly memberships remain active as long as you continue to make monthly payments. You can set your donations up with any major credit card or through your bank account. You may make changes at any time to your monthly giving amount or end date by contacting the Membership Department.

Annual memberships

Annual memberships expire 12 months after we receive your membership payment.

Please note that if you are not directly responding to renewal request from Xerces, please be sure to include a note that says you are requesting a renewal, so that your renewal is not confused with an additional special contribution.

Can I renew for multiple years at a time?
Please call our office toll free at (855) 232-6639, option #2 to renew for multiple years at a time. You can also sign up online for yearly auto pay on our join or renew membership pages. If you elect for yearly auto pay, then you won’t receive renewal notices in the mail or have to remember when your membership renewal is due. You just need to keep us updated when your credit card or bank account information changes.

What if I don’t want to donate online?
Please call our office toll free at (855) 232-6639, option #2, Monday through Friday from 9am-5pm Pacific time, to donate over the phone with a credit card or to set up a recurring donation through your bank account. We accept all major credit cards. You may also mail in our downloadable donation form.

If you live outside the U.S., please do not send in foreign checks or money orders.

Can I designate my donation toward a specific project or program?
If you wish to make a restricted donation, we request that the donation amount total $5,000 or more. This parameter is made to keep administrative costs down and to encourage unrestricted giving, which ensures the greatest flexibility of your contribution.

How do I give a membership to someone else?
Giving a gift membership to a relative or friend is a wonderful way to mark a birthday, holiday, or special event. The recipient will receive notification of your gift and a complimentary recent issue of Wings. You can purchase a gift membership online or by calling our office at (855) 232-6639, option #2.

May I give a donation honor or in memory of someone?
Yes, a tribute gift is a wonderful way to celebrate a particular life event or to honor a special person’s life. We will send an email announcing your thoughtfulness if you provide us with the correct email address. You may make a tribute gift online or call us at (855) 232-6639, option #2.

Matching Gifts
Yes, please ask your employer to make your gift go even further. We are happy to process your matching gift.

Bequests, Donations of Stock, and Major Gifts
For many, remembering a favorite organization in their will is an important legacy. Please visit our planned giving page for more information. Others prefer giving securities (stock), or would like to make a large impact on a specific project by contributing in support of that program. Please contact our Membership Director, Suzanne Granahan, to discuss these options.

In-Kind Gifts
If you are in the Portland (OR) metropolitan area, you might wonder if our office needs equipment, supplies, books, or other items. We gladly accept these in-kind gifts, but only if we can really use them. Please contact Alex Charlap first for more information.

How do I notify you of changes to my contact information?
Please fill out our online contact information update form or call us at (855) 232-6639, option #2 to update your contact information. If you prefer, you can mail us a note with your changes, but please remember to provide your previous contact information as well, so we can easily look you up in our databases.

How much of my donation is tax-deductible? Will I get an acknowledgment letter of my donation?
The Xerces Society is a registered 501(c)3 nonprofit organization. Because IRS rules change often, please contact a tax adviser or accountant for the most up-to-date information. Donations and dues to the Xerces Society are tax deductible to the extent allowable by law. We acknowledge all gifts over $5 made by check or cash with a thank you letter. Gifts made online or by credit card will receive a thank you receipt by email if you provide a valid email address. If you have a question regarding a tax receipt, please contact the Membership Department.

How many renewals notices will I receive?
If you are not set-up with automatic membership payments, then we send you a renewal notice by mail around your membership expiration date. If we don’t hear from you, we will send two more renewals. We send multiple notices because renewals often get buried in kitchen drawers or lost in a move. If you are curious when your membership expires please contact the Membership Department.

What other mailings will I receive?
Twice a year, in spring and fall, we send special appeals to all of our members, sometimes for general support and sometimes for specific programs. Our hope is that those who are able to contribute will make a donation in addition to their membership dues. We also mail out our member magazine Wings twice a year (in late spring and late fall) and our donor newsletter twice a year (in late winter and late summer).

Why does Xerces not give out membership numbers or cards?
Sometimes members wish they had tangible evidence of their Xerces membership. We have decided, however, to save money and resources by funneling money directly into our conservation, research, and outreach programs, instead of managing membership numbers and producing membership cards.

How will Xerces use my information?
Please read our Donor Privacy Policy to learn about what donor information we collect and how we use that information. Feel free to contact us if you have questions regarding the policy.


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Workplace Giving

We partner with EarthShare and CFC to make workplace giving easy for you. Learn more.

Planned Giving

Your legacy for invertebrates. Learn more.

Lifetime Membership

A one-time gift that keeps giving for a lifetime. Learn more.

Corporate Giving

Please email Lara Bjork, Director of Grants and Corporate Giving.

More Donor Information
Contact Us
By Phone


By Email

For individual giving,
855-232-6639, option #2

For corporate giving,
Lara Bjork
Director of Grants and Corporate Giving
855-232-6639, ext.121

By Mail

P.O. Box 97387 Washington, D.C. 20090-7387


View our rating on Charity Navigator or view our annual reports for more information.

Photos (clockwise): Mace Vaughan / Xerces; Candace Fallon / Xerces; Patrick Norton / Crystal Springs Partnership; Sarina Jepsen / Xerces < > < >