GCA take-home calculator

Compare the rate. See the take-home.

Start with PAYE, compare an all-inclusive umbrella rate, then reverse the result back to the PAYE rate needed for the same take-home.

Built on weekly 1257L tax and National Insurance with actual employer costs and pension, so you can compare like for like. Figures are illustrative.

Martin Polden, illustrated team portrait
Martin PoldenPayroll

PAYE

3% employer pension + 5% worker pension (4% net deduction)

£0.00/day
Estimated weekly take-home
£0.00
Weekly gross
£0.00
Income tax
£0.00
Worker NI
£0.00
Worker pension
£0.00
Holiday pay
Included & paid out

Umbrella

8% employer pension + 0% worker pension

£0.00/day
Target weekly take-home
£0.00
Umbrella gross pay
£0.00
Employer NI
£0.00
Employer pension (8%)
£0.00
G&S Levy*
£0.00
Umbrella margin
£0.00
Holiday pay
Included & paid out

Reverse check

Umbrella take-home target£0.00
PAYE rate needed to match that take-home£0.00/day
PAYE employer cost at original rate£0.00/week
Umbrella all-inclusive invoice£0.00/week

How it works. This simplified public calculator uses the same weekly 1257L tax/NI and actual-cost logic as the supplied GCA framework calculator. It assumes PAYE holiday pay is included in the entered rate; umbrella is an all-inclusive invoice. PAYE uses a 3% employer pension plus a 5% worker pension paid as 4% net under relief at source. Umbrella uses an 8% employer contribution and no worker pension deduction. The take-home uplift is explicit and editable — it is not presented as a guaranteed umbrella advantage. Figures are indicative, use one standard week and exclude student loans, other deductions and VAT.

* From August 2026 the government renamed the Apprenticeship Levy the Growth and Skills Levy (G&S Levy for short). Payslips, Key Information Documents, invoices and contracts issued before the change may still call it the Apprenticeship Levy or App Levy.