How long does my NHS discount last? Once you activate your discount it will be valid on your account for 6 months, after that we’ll ask you to reverify it. Related articles How much discount do I get with my NHS registration? Can I share this with my NHS colleagues? What happens if I want to cancel my collection order? Some customers with eating disorders can find calorie information troubling, do you have any options for them? Is your online discount available for other Emergency Services staff?