Many employed people assume that because they are paid through PAYE, their tax position is automatically simple. For many people, that may be true. But once income crosses certain thresholds, the picture can become more complicated.
The £100,000 point matters because the Personal Allowance can start to reduce when adjusted net income goes above that level. This means the effective tax position can feel different from what the headline salary suggests.
Bonuses, benefits in kind, pension contributions, savings income, rental income, share schemes, Child Benefit and other income can all affect the position. The issue is not only how much tax is deducted from a payslip. The issue is whether the overall position has been understood properly.
Good planning does not mean overcomplicating things. It means checking whether the income level, tax code, pension planning and any wider tax responsibilities need attention before a surprise appears later.