Short answer: The free NHS flu vaccine for 2026/27 is available to everyone aged 65 and over, adults aged 18 to 64 with certain health conditions, pregnant women, care home residents, carers, close contacts of immunocompromised people, frontline health and social care workers, and children aged 2 to 17 in defined groups. Children and pregnant women could be vaccinated from 1 September; adult cohorts joined the programme from 1 October.

Who is eligible for the free flu vaccine in 2026/27?

The national flu immunisation programme for 2026 to 2027 is now under way. According to the joint letter issued by the UK Health Security Agency, NHS England and the Department of Health and Social Care, there are no changes to the eligible groups this season. The cohorts are set out in two waves.

From 1 September 2026

  • Pregnant women, at any stage of pregnancy
  • All children aged 2 or 3 years on 31 August 2026
  • Primary and secondary school pupils, from reception to year 11
  • Children aged 6 months to under 18 in clinical risk groups, as defined in the influenza chapter of the NHS Green Book

Individuals aged 17 and over attending a special educational needs school who are in a clinical risk group may also be vaccinated alongside their peers.

From 1 October 2026

  • Adults aged 65 years and over
  • Adults aged 18 to under 65 in clinical risk groups
  • People living in long-stay residential care homes
  • Carers in receipt of carer’s allowance, or those who are the main carer of an elderly or disabled person
  • Close contacts of immunocompromised individuals
  • Frontline social care workers without an employer-led occupational health scheme, including staff at registered residential care or nursing homes, registered domiciliary care providers, voluntary managed hospice providers, and personal assistants employed through direct payments

In addition, all frontline healthcare workers, clinical and non-clinical, who have contact with patients should be offered the vaccine from 1 October as part of their organisation’s infection prevention policy.

What counts as a clinical risk group?

The clinical risk groups are defined in the influenza chapter of the Green Book on Immunisation against Infectious Disease, the reference text clinicians use when deciding who qualifies. The conditions covered include:

  • Respiratory conditions, including asthma that requires regular steroid inhalers or tablets, COPD and cystic fibrosis
  • Heart conditions, including coronary heart disease and heart failure
  • Diabetes
  • Chronic kidney disease and chronic liver disease
  • Neurological conditions such as Parkinson’s disease, motor neurone disease, multiple sclerosis and cerebral palsy
  • A weakened immune system due to disease or treatment, including HIV, chemotherapy and steroid medication
  • Problems with the spleen, including sickle cell disease or a removed spleen
  • Learning disability and severe mental illness
  • Morbid obesity, defined as a body mass index of 40 or above
  • Epilepsy and a history of stroke or mini stroke

If you live with one of these conditions and are unsure whether you qualify, your GP surgery or a community pharmacist can confirm your eligibility.

Why does the adult programme start on 1 October?

Patients often ask why adults cannot be vaccinated in September alongside the children. The timing follows advice from the Joint Committee on Vaccination and Immunisation (JCVI), based on evidence that vaccine effectiveness wanes in adults as the months pass after vaccination.

The programme is deliberately timed so that protection peaks during the expected winter surge in December and January, when flu circulates most heavily and hospital pressures are greatest. Primary care providers are asked to complete the majority of vaccinations by the end of November, with vaccination continuing until 31 March where necessary.

It takes around 10 to 14 days for immunity to build fully after vaccination, so booking early in October is preferable to waiting for the new year.

Why are pregnant women offered the flu vaccine so early?

Pregnant women have been eligible from 1 September, and the reason is straightforward: flu in pregnancy carries real risks. Public Health England’s professional factsheet on flu vaccination in pregnancy notes that influenza can cause maternal intensive care admission, preterm labour and low birth weight, and that one in eleven maternal deaths during 2009 to 2012 was caused by influenza.

The same factsheet is clear on safety:

  • The injectable flu vaccine is inactivated and does not contain live virus, so it cannot cause influenza infection
  • It can be given safely during any trimester
  • There are no increased risks of maternal complications or poor foetal outcomes associated with inactivated influenza vaccination in pregnancy
  • Vaccination provides passive immunity to the foetus, which can protect the infant for up to six months after birth

Protection that reaches the newborn matters, because babies under six months are too young to be vaccinated themselves yet are more at risk of serious illness if they catch flu.

What about children?

Children receive the programme through two routes. Healthy children aged 2 and 3 are vaccinated at their GP surgery, usually with the nasal spray. School-aged children, from reception to year 11, are vaccinated through the school immunisation programme.

The children’s nasal spray contains live but weakened flu viruses that will not give your child flu. Children aged 6 months to 2 years who are in clinical risk groups receive the injectable vaccine instead. The vaccine is not suitable for babies under the age of six months.

How and where do I book?

If you are eligible, you can have a free flu vaccine at your GP surgery, a pharmacy offering the service, your midwifery service if you are pregnant, or a hospital appointment. Booking is also available through the NHS App and the NHS website. If you work in frontline health or social care, arrange vaccination through your employer, or at a pharmacy if your employer cannot provide it.

If your child is eligible, you should be contacted by their GP surgery or school nursing team. If you think an invitation has been missed, contact the school nurse for school-aged children or the GP surgery for younger children.

What if I am healthy and under 65?

A healthy adult under 65 who is not a carer, a close contact of an immunocompromised person, or a frontline health or social care worker is not eligible for the free NHS flu vaccine. That said, many high street pharmacies offer the flu jab privately for a fee, which is a reasonable option if you want protection this winter, for example before visiting elderly relatives.

Note that the autumn COVID-19 booster programme has different eligibility rules and a different age threshold, so a flu invitation does not automatically mean you qualify for a COVID booster. The NHS App or your GP surgery can clarify which vaccines you are due.

Frequently asked questions

Does the flu jab give you flu?
No. The injected adult vaccine contains inactivated flu viruses, so it cannot give you flu. A sore arm after the injection is common, and some people get a slight temperature and aching muscles for a couple of days. These are signs of the immune system responding, not infection. Other reactions are very rare.

Is it too late to get vaccinated?
No. The sooner the better, but it is worth getting vaccinated right up until the spring. The programme continues until 31 March where necessary.

Why do I need it every year if I had it last winter?
Two reasons. First, the flu viruses expected to circulate change from season to season, so the vaccine is reformulated each year. Second, the antibodies that protect you decline over time, and protection is strongest in the months after vaccination.

Can I have the flu vaccine at the same time as other vaccines?
In many cases, yes, but it depends on which vaccines are involved. Ask your pharmacist or GP surgery when you book.

Does the flu vaccine protect against colds or COVID?
No. It protects only against flu. Many other winter viruses cause flu-like symptoms, which is why people sometimes believe the vaccine failed them. Separate programmes cover COVID-19 vaccination, each with their own eligibility criteria.

The bottom line

The 2026/27 programme keeps the same eligible groups as last year, with the campaign deliberately timed so that protection is strongest through the winter peak. If you are 65 or over, pregnant, living with a qualifying health condition, caring for someone, or working on the clinical front line, you can be vaccinated now. Children aged 2 to 17 in the defined groups have been eligible since September.

Book early in the season, allow two weeks for immunity to build, and if you are unsure whether you qualify, ask your GP surgery or pharmacist. They would far rather answer the question than see you unprotected in January.

This article is general information and does not replace personalised medical advice. If you have questions about your own eligibility or health, speak to your GP surgery or pharmacist.

Sources: UK Health Security Agency, NHS England and Department of Health and Social Care joint letter on the 2026/27 flu immunisation programme (as reported by Nursing in Practice); NHS trust and integrated care board guidance on 2026/27 eligibility; Public Health England factsheet on influenza vaccination in pregnancy for healthcare professionals; NHS Vale of York CCG guidance on flu vaccine myths.