Is the Pay Rise Worth It?
Moving from £38,000 to £42,000 is a gross increase of £4,000. But after tax and NI, you actually take home £2,880 more per year — that's £240 extra per month.
You keep 72% of the pay rise. The rest goes to income tax and National Insurance.
Tax Band Impact
Both salaries fall within the basic rate tax band (20%). You keep a consistent 68p of every additional pound earned (after 20% tax and 12% NI). No tax cliff edges to worry about in this range.
What the Difference Means in Practice
An extra £240 per month could cover a significant boost to your savings rate or a better rental property. A difference of this size could come from an annual pay review, a promotion within the same role, or moving to a slightly larger organisation.
What Does the £4,000 Difference Mean?
Both salaries fall within the basic rate (20%) tax band. The entire £4,000 difference is taxed at 20% income tax plus 8% National Insurance, meaning you keep about 72p of every extra £1.
The £4,000 difference translates to roughly £240/month extra take home. While not transformative, this covers a car payment, additional savings contribution, or a noticeable improvement in discretionary spending.
Is the Jump Worth It?
When evaluating a pay rise from £38,000 to £42,000, consider the full picture: pension contributions (employer may contribute a percentage of the higher salary), student loan repayments (which increase with salary), and any changes in benefits or working conditions. A higher salary also increases your mortgage borrowing power — at 4.5x salary, the mortgage difference is £18,000. See the full breakdowns: £38,000 after tax and £42,000 after tax.
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Calculate your take home pay →See the full breakdown: £38,000 salary · £42,000 salary