Special Forces (SAS Reserve)


This is available as a part time Army role.


Special Air Service (Reserve) are tasked to the highest level and can operate in difficult and often changing circumstances. They may find themselves operating without guidance, and in situations that are important operationally and strategically.

Training For The Role

Before you attempt the selection course you must first complete the basic military training courses. Then you can apply to take the challenging selection course. This is run twice a year, and is both physically and mentally challenging:

Selection Induction Weekend (SIW) – The SIW consists of a number of physical and theory summative assessments to ensure that candidates are of a suitable standard to attempt selection and commence the pathway to serve in UKSF. 

Training Delivery (TD) – TD is a progressively arduous course of drill nights and weekends over several months, requiring a candidate to demonstrate mental and physical robustness. It is designed to prepare applicants for the rigours of the Briefing Assessment Course and Aptitude phase.

Briefing Assessment Couse (BAC) – The BAC is an arduous 4-day assessment phase that briefs on the qualities and standards required for service within UK Special Forces and conducts an initial assessment of candidates’ suitability for continued progression on the selection pathway. 

Aptitude Phase - Aptitude consists of a series of progressive marches against the clock, which culminates with a testing endurance march over arduous terrain. The purpose of Aptitude is twofold; it allows a candidate to demonstrate their physical and mental resilience under arduous conditions, while providing the directing staff an insight to the applicant’s motivation for wanting to serve in UK Special Forces Reserve.

Standard Operating Procedures and Tactics Course (SOPTAC) - On passing Aptitude, applicants will undertake a further six months training, over drill nights and weekends. This is an intensive period of instruction and assessment on Special Forces tactics, techniques and procedures, military skills form a major part of the programme. This is progressive, with the emphasis on individuals assimilating new skills, while under physical and mental pressure. On successful completion of the two-week final assessment exercise, applicants will be badged as SAS soldiers.

Progressive training - Following the completion of UKSF(R) Selection course, soldiers will enter a 36 -month period of probation which will require the completion of a basic parachute course, a communications course and a Survive, Escape, Resist and Evade (SERE) course. On completion of the probationary period, soldiers will be eligible to be mobilised and deployed on operations. Training and skill development will be continuous throughout an SAS soldier’s career, reflecting the requirement to maintain a high level of proficiency in a diverse range of skills.

Entry Requirements

Age: 17 years 9 months - 42 years 6 months
  • Mid Thigh Pull 76kg
  • Medicine Ball Throw 3.1m
  • 2km run 10m 15s
  • MSFT (beep test) level 8.06
More information about the fitness test
Qualifications: No formal qualifications needed

Qualifications You Could Get After Training

When you join your Squadron you will learn new skills and knowledge that will reinforce your earlier military training. You will also develop an in-depth knowledge of Special Forces operational procedures and skills.

Pay and Benefits

On successful completion of Selection, the starting daily rate for an SAS Trooper is over £112, plus all the usual Army Reserve service incentives.


More about Reserve benefits

From the Field

"This is an opportunity for soldiers to work within a unique, independent organisation which takes pride in its heritage, role and professionalism. Service is physically and intellectually challenging, but the rewards are significant."


21 & 23 SAS processes applications from male and female applicants, with no previous military service. Applicants must be no older than 42 years 6 months when applying to join the Army Reserves (AR). They will then be sponsored out to their recommended local AR unit to complete basic training and gain experience before being allowed to attempt SAS Reserves Selection.

Ex Regular and AR applicants must be no older than 43 years 364 days on weekend 1, of the Selection Induction Weekend (SIW) of SAS(R) Selection.

There are SAS reserve units in the following areas:


21 SAS (call 0800 587 2825)

London & South East
M3/M4 Corridor
East Anglia
South West

23 SAS (call 0800 028 5650)

North of England