The 18-Week Referral to Treatment Target in 2026: What Patients Need to Know
16 August 2026
Learn how the NHS 18-week RTT target works in 2026, what your rights are, and what to do if you face long waits. Updated for England.
What Is the 18-Week Referral to Treatment Target?
The 18-week referral to treatment (RTT) target is a constitutional standard in England. It means that from the day your GP refers you for a consultant-led service, you should receive treatment (or be told why you no longer need it) within 18 weeks. This covers the entire pathway: outpatient appointments, diagnostic tests, and the treatment itself. Introduced in 2004, it was designed to give patients a clear guarantee. In 2026, the target remains a key measure for elective care, although the NHS has struggled to meet it consistently since the pandemic. Understanding how it works helps you challenge excessive waits and plan your care.
How Is the 18-Week RTT Target Measured?
The target is tracked as the percentage of patients who have completed their RTT pathway within 18 weeks of referral. The clock starts when the referral is received by the hospital, and stops when treatment starts, or when it is decided that treatment isn't needed. Data is published monthly by NHS England for each trust. In 2026, the national standard is still that at least 92% of patients should be seen within 18 weeks. However, average waits and the proportion of patients waiting over 52 weeks are also published. This transparency helps patients and commissioners see which hospitals are performing well and where there are problem bottlenecks.
Current Performance and 2026 Reforms
As of 2026, NHS England is still working to recover elective care. Official statistics show that around 60% of patients are treated within 18 weeks, far below the 92% target. Over 400,000 people have been waiting longer than a year. To tackle this, NHS England has shifted from a simple target to a more flexible 'elective care reform' approach. Hospitals are being asked to focus on longest waiters, improve pre-operative assessment, and use 'one-stop' diagnostic clinics. While the 18-week standard remains official, the 2026 planning guidance gives local trusts more discretion to prioritise clinical urgency. Patients may see some services treating them faster if their condition deteriorates.
What to Do If Your Wait Exceeds 18 Weeks
If your 18-week RTT clock is ticking and your hospital appointment or treatment date is beyond the 18-week point, you have legal rights. You can ask your referring GP if any alternative provider can treat you faster. Since 2025, 'Right to Choose' rights have been strengthened for elective care, meaning you can choose a different hospital in England if your current one cannot meet the deadline. Contact the hospital's Patient Advice and Liaison Service (PALS) to formally raise concerns. If you're still waiting and your condition is worsening, ask your GP to escalate your case. In most cases, hospitals will advise you of your position on the waiting list and expected dates.
How the Target Affects Elective Care and Capacity
The 18-week RTT target influences how hospitals manage capacity. When elective care backs up, it often leads to cancellations and longer waits. In 2026, trusts are using additional funding to set up surgical hubs and weekend theatres. These focused facilities separate scheduled operations from emergency demand. This approach helps meet the 18-week standard for high-volume procedures like cataract surgery and hip replacements. However, workforce shortages in anaesthesia and radiography remain a constraint. Understanding how capacity works helps you know why some trusts publish longer admitted waits. The target remains a key performance indicator for commissioners and a visible marker of how the healthcare system is recovering.
FAQ
Yes, the 18-week referral to treatment clock includes all elements of the pathway: the first outpatient appointment, any diagnostic tests needed, and the final treatment. However, if a diagnostic test is requested outside a consultant pathway (e.g., directly from your GP), it may not count under RTT rules. In 2026, many trusts are working to integrate diagnostics into the same clock.