Fair, my previous figure was wrong. However, based on the sources you have provided, a PA will earn more per year than a doctor until they are 5 years into their career:
PA:
Year 1 (<2 years’ experience)- 43,742
Year 2 (<2 years' experience) - 43,742
Year 3 (2-5 years) - 45,996
Year 4 (2-5 years)- 45,996
Year 5 (2-5 years) - 45,996
Dr:
Year 1 (FY1) - 32,398
Year 2 (FY2) - 37,303
Year 3 (CT1/ST2) 43,923
Year 4 (CT2/ST2) - 43,923
Year 5 (CT3/ST3) - 55,329
However, cumulatively, after 5 years, a PA will have earned 225,472 and a doctor will have earned 212,876 so a PA is still working out as more expensive at this stage.
Lets go forward a year:
PA:
Year 6 (5+ years) - 50,056
Dr:
Year 6 (ST4) - 55,329
Cumulatively, that’s 275,528 (PA) vs 268,205 (Dr)…
So let’s keep going:
PA:
Year 7 (5+ years) - 50,056
Dr:
Year 7 (ST5) - 55,329
Cumulatively, that’s 325,584 (PA) vs 323,534 (doctor).
Into 8 years qualified now:
PA:
Year 8 (5+ years) - 50,056
Dr:
Year 8 (ST6) - 63,125
Cumulatively, that’s 375,640 (PA) vs 386,686 (doctor). Finally, at 8 years into their career (and very close to being a consultant), a doctor has overtaken in earnings.
Now, a doctor at ST3+ level will be a registrar, which is the grade below a consultant... A registrar will be running a department in the absence of consultant; a PA can't even prescribe - pretty big difference in responsibility, no?
I stand by my previous point that PAs are not cheaper than doctors.
And FY1 and FY2s are junior doctors, not sure why you think otherwise?