A gross income of £43,000 sits
entirely inside the UK Basic Rate parameters for 2026/27. The
slice above your £12,570 Personal Allowance is
taxed at the flat 20% statutory rate; the rest of your
earnings (the allowance itself) is paid out untaxed.
On the National Insurance side, your income remains below the Upper
Earnings Limit of £50,270, so every pound above the primary
threshold is subject to the standard 8% Class 1
employee rate. Your combined marginal drag is locked at 28% (20%
PAYE + 8% NI), which makes workplace
salary sacrifice
or personal pension contributions a high-leverage way to convert
taxable income into pension wealth at immediate 20%
relief.