My payslip- why may this be?

[OnlyFoolsnMothers]

Could anyone shed a light on why this may be, whilst I wait to speak with our payroll.
Since April my pay has changed consistently back and forth by 20p....
So April is was £X.51
May £X.71
June £X.51
July £X.71

I get child care vouchers and a pension deduction- it’s just bizarre. Am I missing something?

Evening, @OnlyFoolsnMothers - we've moved your thread over to Money Matters now, as requested.

Hope that helps.

It’s just the rounding difference in the payroll month upon month. £1 at 20% (Assuming you’re a basic rate taxpayer) = 20p

So has mine 🤣🤣🤣 never thought to question it x

Gross pay is rounded by HMRC calculation systems, so as said above, it's rounding.

In simple terms (this isn't how it works but demonstrates the idea) if, say, you're paid £7.40. In the first week, you're taxed on £7, in the second week the cumulative pay is £14.80 which is rounded down to £14, so you're only taxed on £7 again, but in the third week, your cumulative pay is £22.20, rounded down to £22, but you've only been taxed sof far on £14, so you get taxed on £8 for the third week, i.e. an extra 20p tax (at 20%).