Data sources

Reviewed 23 September 2026

Every number on this site traces back to one of the sources below. If a figure cannot be sourced, it does not ship.

Datasets behind the calculators
SourceDetailWhat we use it for
gov.uk — Income Tax rates and allowances2026/27 bands; accessed 23 September 2026.Tax engine: Personal Allowance £12,570, 20%/40%/45% bands, £100k taper.
gov.uk — Scottish Income Tax 2026 to 20272026/27 table; accessed 23 September 2026.Tax engine: Starter 19% to £16,537, Basic 20% to £29,526, Intermediate 21% to £43,662, Higher 42% to £75,000, Advanced 45% to £125,140, Top 48%.
gov.uk — National Insurance ratesClass 1 2026/27; accessed 23 September 2026.Tax engine: Primary Threshold £12,570, UEL £50,270, 8%/2%.
gov.uk — Repaying your student loan: what you pay2026/27 thresholds; accessed 23 September 2026.Tax engine: Plan 1 £26,900, Plan 2 £29,385, Plan 4 £33,795, Plan 5 £25,000 at 9%; postgraduate £21,000 at 6%.
RHA Pay Report 2026Surveyed October–November 2025; accessed 23 September 2026.HGV pay: Class C+E median £15.05/hr (£883/wk at 55 hrs); Class C median £14.50/hr (£741/wk at 49 hrs); regional medians; 60,000 new drivers/year needed (April 2026).
Aspion — HGV Driver Salary Guide 2026Published 2026; accessed 23 September 2026.HGV pay: Class 1 permanent £38,000–£50,000, agency £18–£24/hr; Class 2 permanent £28,000–£36,000, agency £16–£20/hr.
ONS — Annual Survey of Hours and Earnings (ASHE)November 2025; accessed 23 September 2026.HGV pay cross-check: SOC 8211 median weekly £799.90, mean £828.30.
Jooble — HGV Class 1 salary data29 July 2026 (job adverts); accessed 23 September 2026.HGV pay cross-check: Class 1 C+E £39,061/yr average.
AFPRB 55th Report 2026 (CP 1567)June 2026, accepted in full; pay year 1 April 2026 – 31 March 2027; accessed 23 September 2026.Armed forces pay: +3.6% award; other-ranks and officer scales; X-Factor 14.5%; LSA, UWA, ULA, RRP and other daily allowances; £50,000 nursing Golden Hello.
Logistics UK — logistics confidence trackerQ2 2026; accessed 23 September 2026.Demand context: 56.2% of HGV operators had sufficient drivers; persistent gap over 50,000.