September 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.
£5/€7 off Slimming World Online
Valid 17th August to 20th September 2025
Money off our Bronze, Silver or Gold packages with the code AUTUMN25
Featured offer for Slimming World Kitchen
£5 off your first four boxes
Join Slimming World and subscribe to Slimming World Kitchen before 31st December and get 20% off your first four recipe boxes!*
Find out more about Slimming World Kitchen.
Slimming World vouchers for group
Bella magazine – free membership (save £5) when you join a Slimming World group
Find your voucher in magazines on sale 2nd – 8th September 2025. Voucher valid until 15th September 2025. Terms and conditions apply.
Reach publications** – free membership (save £5) when you join a Slimming World group
Find your voucher in newspapers on sale 6th – 12th September 2025, or online between 6th – 16th September 2025. Voucher valid until 19th September 2025. Terms and conditions apply.
Woman’s Own magazine – free membership (save £5) when you join a Slimming World group
Find your voucher in magazines on sale 9th – 15th September 2025. Voucher valid until 22nd September 2025. Terms and conditions apply.
That’s Life magazine – free membership (save £5) when you join a Slimming World group
Find your voucher in magazines on sale 11th – 17th September 2025. Voucher valid until 24th September 2025. Terms and conditions apply.
Woman magazine – free membership (save £5) when you join a Slimming World group
Find your voucher in magazines on sale 16th – 22nd September 2025. Voucher valid until 29th September 2025. Terms and conditions apply.
Slimming World discount codes for digital-only Slimming World Online membership
Bella magazine – £15 off a Slimming World Online Gold membership package
Find your code in magazines on sale 2nd – 8th September 2025. Code valid until 15th September 2025. Terms and conditions apply.
Reach publications** – £15 off a Slimming World Online Gold membership package
Find your code in newspapers on sale 6th – 12th September 2025. Code valid until 19th September 2025. Terms and conditions apply.
Woman’s Own magazine – £15 off a Slimming World Online Gold membership package
Find your code in magazines on sale 9th – 15th September 2025. Code valid until 22nd September 2025. Terms and conditions apply.
That’s Life magazine – £15 off a Slimming World Online Gold membership package
Find your code in magazines on sale 11th – 17th September 2025. Code valid until 24th September 2025. Terms and conditions apply.
Woman magazine – £15 off a Slimming World Online Gold membership package
Find your code in magazines on sale 16th – 22nd September 2025. Code valid until 29th September 2025. Terms and conditions apply.
Woman and Home magazine – £15 off a Slimming World Online Gold membership package
Find your code in magazines on sale 25th September – 21st October 2025. Code valid until 29th October 2025. Terms and conditions apply.