You'll get a custom EFF35 Challenge Coin when you become a monthly or annual Sustaining Donor by July 10. It’s that simple.

Give Once a Month

Give Once a YEar

Start a Convenient recurring donation Today!

But here's a little more background for all of you detail-oriented digital rights fans. EFF's 35th Anniversary celebration has begun and we're commemorating three and a half decades for fighting for your privacy, security, and free expression rights online. These values are hallmarks of freedom and necessities for true democracy, and you can help protect them. It's only possible with the kindness and steadfast support from EFF members, and over 30% of them are Sustaining Donors: people who spread out their support with a monthly or annual automatic recurring donation.

We're saying thanks to new and upgrading Sustaining Donors by offering brand new EFF35 Challenge Coins as a literal token of thanks. Challenge coins follow a long tradition of offering a symbol of kinship and respect for great achievements—and we owe our strength to tech creators and users like you. EFF challenge coins are individually numbered for each supporter and only available while supplies last.

Orange cat inspecting EFF 35th Anniversary Challenge Coin

Become a Sustaining Donor

Just start an automated recurring donation of at least $5 per month (Copper Level) or $25 per year (Silicon Level) by July 10, 2025. We'll automatically send a special-edition EFF challenge coin to the shipping address you provide during your transaction.

Already a Monthly or Annual Sustaining Donor?

First of all—THANKS! Second, you can get an EFF35 Challenge Coin when you upgrade your donation. Just increase your monthly or annual gift by any amount and let us know by emailing upgrade@eff.org.

Get started with your upgrade at eff.org/recurring. If you used PayPal, just cancel your current recurring donation and then go to eff.org to start a new upgraded recurring donation.

Digital Rights Every Day

EFF's mission is sustained by thousands of people from every imaginable background giving modest donations when they can. Every cent counts. We like to show our gratitude and give you something to start conversations about civil liberties and human rights, whether you're a one time donor or recurring Sustaining Donor.

Person wearing a green hoodie with a gold motherboard figure and orange poppies on the back, next to a person wearing an EFF35 Cityscape member t-shirt.

Check out freshly-baked member gifts made for EFF's anniversary year including new EFF35 Cityscape T-Shirt, Motherboard Hooded Sweatshirt, and new stickers. With your help, EFF is here to stay.