Intro: A smaller paycheck is stressful, but the cause is usually easy to spot.
1. Tax changes
New tax years adjust your code.
2. Sick days
Statutory sick pay is lower.
3. Unpaid leave
Time off affects pay.
4. Pension contributions
Increases reduce take‑home pay.
5. When to check your payslip
Errors do happen.
Summary: Most pay drops come from tax changes or time off.