With the season for giving right around the corner, we’re excited to kick off the Fi it Forward referral challenge. The challenge is rolling out today starting on desktop.

Like our last referral challenge, participants will earn prizes for the referrals they make throughout the challenge. In the Fi it Forward challenge, you can win up to two hardware gifts when you refer friends to Project Fi: a Google Chromecast and the new Android One moto x4.

But we’re most excited about our opportunity to pay it forward with our third gift. At the end of the challenge, Project Fi will donate $50,000 to the Information Technology Disaster Resource Center (ITDRC). We’re thrilled to see organizations like the ITDRC harness the power of communications technology to make a meaningful difference in crisis response and recovery, and we’re grateful to come together as a community to support their initiatives. Project Fi users don’t have to take any action to participate in the community gift—you’re already supporting the ITDRC’s disaster relief efforts just by being a part of Project Fi.

Ready to get started?. Remember to enter the challenge and get your referrals in by December 17. We can’t wait to Fi it Forward with all of you this holiday season.

Last December we launched the Project Fi referral program as a way to make sharing Project Fi with friends easier. Many of our users have gone above and beyond with their efforts, sharing Project Fi with friends, online communities, and even strangers at the airport.

As our way of saying thanks, today we’re launching a Fi Referral Challenge. We’ll be awarding Fi subscribers special prizes for their referrals—on top of the standard $20 Fi referral credit per referral. While we’re excited about all of the prizes, we're especially eager to meet the participants who bring the most new subscribers to Project Fi. Our top three referrers will score a trip to Google headquarters and spend time with the Project Fi team.

Here’s a breakdown of what you can earn for the referrals you make from now through September 25:

If you’d like to participate in the the challenge, remember to enter here and share your Project Fi referral code with friends and family by text, email, or on social media.

For additional information on the Race to Google HQ, feel free to visit our FAQ. Best of luck to all participants, and we hope to see you in Mountain View!