March 2026 - Joint update from the support staff trade unions at ARK Schools
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Dear Member,
As many of you may be aware, recently members of the joint support staff trade unions (UNISON, GMB, Unite) identified a discrepancy in pay scales for support staff working in the Greater London area for ARK Schools.
ARK schools in London pay the GLPC annual pay award and pay scales – which is effectively the NJC national pay award but with a slightly higher increase to reflect London weighting. This London weighting is then incorporated directly on to the London GLPC pay scales rather than paid as a separate allowance.
However, due to a processing error, ARK has mistakenly applied the NJC annual pay increase instead of the GLPC pay award for the 2022–23, 2023–24 and 2024–25 pay years. These are the years in which the NJC and GLPC settlements differed because both were set as flat‑rate increases rather than percentage awards. As a result, ARK’s London pay scales have fallen below the correct GLPC rates. This issue affects not only the historic pay awards for 2022–23 to 2024–25, but also the 2025–26 budget, as the base pay scale used for forecasting and costing is incorrect. This impacts employees on Ark Support staff contracts only.
To put it simply, ARK should have been giving support staff the London adjusted GLPC pay rises. Instead, for three years they accidentally applied the smaller NJC pay rises. This means staff in London have been paid less than they should have been.
ARK agreed with the support staff unions that - subject to approval from the Department for Education and His Majesty’s Treasury - they would correct this underpayment and aim to pay the three years of back pay owed to London support staff. ARK has informed us that they are still awaiting confirmation that they can proceed with this payment.
On Friday 13th March, ARK informed us that while they continue to wait for approval for the historic back pay, they will correct the current year’s pay scales. This means members’ salaries will be adjusted from March onwards. Staff will also receive a lump‑sum payment covering back pay for the period September 2025 to February 2026. Each affected member will receive a pay letter explaining their individual back‑pay calculations. Your March payslip will show your revised salary and the lump‑sum back‑pay amount. Usual employer and employee deductions for National Insurance (NI) and pension contributions will apply to the back pay.
We are continuing to work with the trust to ensure that members receive the full historic back pay as soon as possible.
Jack Robinson
Stacey Booth
Clare Keogh