Slimming World vouchers and discount codes 

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.  

Find your nearest group 

£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

Discover our digital service

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. 

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*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. 

**Reach publications: Daily Mirror/Sunday Mirror (Inc NI), Daily Star/Star Sunday, Daily Express/Sunday Express, Daily Record/Sunday Mail, Irish Mirror/Irish Sunday Mirror, Irish Star and Sunday People.