Slimming World vouchers and discount codes 

August 2025 

Featured Slimming World offers

Free membership when you join group with a 6- or 12- week Countdown course

Valid 17th August to 20th September 2025

Standard membership fee is £5/€9 and weekly group fee is £5.95/€10. All prices shown are recommended retail prices. At participating groups. See full terms and conditions here.  

Find your nearest group 

Five friends join together for £5 each 

Valid until 16th August 2025 

Get your first week free (save £5.95) 

See terms and conditions here

Bring a friend, get a week free 

Valid 6^th July – 16th August 2025 

If you’re already a Slimming World member, you’ll receive a free week of membership for every friend that you bring along to your group. 

Participating groups only. Ask your Consultant for details. Terms and conditions apply. 

Featured offer for Slimming World Kitchen

£5 off your first four boxes 

Join Slimming World and subscribe to Slimming World Kitchen before 31st Dec and get 20% off your first four recipe boxes!* 

Find out more

*Anyone who becomes a Slimming World member and subscribes to Slimming World Kitchen before 31st December 2025 2025 is entitled to receive a 20% discount on up to four Slimming World Kitchen recipe boxes. This offer applies to new Slimming World Kitchen subscribers only and can be redeemed by entering a voucher code at the checkout. Unfortunately, Slimming World Kitchen is currently unable to deliver to the Republic of Ireland and some Scottish postcodes.