How to vote on Big Brother depends on the version and country of the show you want to vote for:

• For the UK Big Brother 2025 (ITV), you can vote by going to itv.com/vote in a web browser or on mobile. You need to select "Big Brother," verify your UK mobile number via a free text code, create a four-digit passcode, then vote when voting is open on the site. Votes are free but require registration and verification.

• For Celebrity Big Brother UK 2025, voting is also done online via itv.com/vote or via the official Big Brother app for Apple or Android. Register on the website or app, then follow voting instructions when voting opens. Voting is free.

• For Big Brother Naija, voting is done through the Africa Magic website africamagic.tv/bigbrother, the Big Brother mobile site, or via the MyDStv or MyGOtv apps (for eligible subscribers). You must register with your details and phone number, verify with an OTP, then vote when voting opens. Votes are free but data costs apply.

• For America's Big Brother (CBS), voting for America's Favorite Houseguest is done on the CBS website by creating a free account. You can vote up to 10 times per email, with some votes requiring watching an ad. Voting deadlines apply.

If you specify which Big Brother version or country you want to vote in, more precise instructions can be provided.