How much more tax would I be paying?

[mizu]

If I now earn £1598 a month gross and pay about £180 tax (tax code 647L)and I earned £650 more a month, how much tax would I be paying roughly?

Have got an opportunity to do maternity cover ie extra hours, i am part time, for someone for a few months and am just wondering if it is worth it once I've sorted out childcare.

Can anyone help? I'm not very good at the sums.

Multiply the extra by 0.69 to cover tax and national insurance. £448.50 by my calculation.

Thanks for reply but is that how much tax i would be paying or how much extra I would earn each month?

No, that would be the net increase in your wage.

20% of £650 would be £130 tax extra per month as you have used all of your tax allowance up for the month but you need to add on some for national insurance.

Try here

I have calculated it 3 times and on a monthly income of £1598,I reckon you should be paying about £211 in tax [I cant get it to £180] and if you add in the extra £650 you would be paying £341 in tax.

lol my dh has just got his calculator out to check and has started spouting on about gross and pension . Go with the 20%, sadly he works for hmrc!!!

Lol bubbles thats exactly what my dh got it to £211!!!

Bubbles4 - Ah that would be because before tax I have money taken out for childcare.

So, I would be paying about £341 in tax and a bit extra for NI. Thanks all, now I have to work out if it is worth doing.

something about not including a pension dedustion, do you work with my DH??

deduction !!

NI contributions are 11%, tax 20%. So 31% in total. Which will give you a net increase in salary of £448.50 (not including pension contributions), as I said back in my first post!