Example

Pay rise from GBP 40,000 to GBP 45,000

A worked example showing why a GBP 5,000 raise feels meaningful but still smaller in monthly cash than the gross increase suggests.

Worked example2 min readRuleset 2025-26Last reviewed 13 March 2026Author PayPath UKReviewed by PayPath UK editorial reviewMethodology

Scenario

A move from GBP 40,000 to GBP 45,000 is exactly the kind of raise that sounds substantial in conversation. It is large enough to matter, but also a very common point where people discover that a gross increase and a monthly lifestyle change are not the same thing.

What to notice

The raise still improves take-home pay, but the annual and monthly gain are softened by tax, NI, and potentially student loan deductions. That is why the new salary can feel less transformative than the headline increase first implied.

Practical interpretation

This example is useful for negotiation and expectation-setting. It helps you separate "is this raise worth having?" from "how much will it change day-to-day cash flow?" Those are related but not identical questions.

Best next step

Use the pay rise calculator with your own settings, then read How take-home pay is really calculated or Student loans and take-home pay if the result feels smaller than expected.

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