Just can't get my head around it - permanent 3 days vs temp 4 days a week and tax credits

[citronella]

Have been temping at the same outfit for a year 4 days a week (30 hrs)
They are offering me a permanent post for 3 days a week (21 hrs) for the same gross rate of pay. So far so good.
But, because income is low, am lone parent of two I also receive:
Child tax credit

• childcare element of tax credit +30 hr element of tax credit I just can't figure out if I will be no worse or worse off I take their offer or if I should ask for slightly more to compensate. Not asking for loads - just don't want to find myself a lot worse off. Please help Thx

I think (but could be completely wrong) that you shouldn't be much worse off as the tax credits will go up when you earn less. So you should end up with a permanent job and with more or less the same money.

I know my tax credits have gone up when I've worked fewer hours anyway. Can you use one of those calculation web-sites to figure it out? A permanent job has got to be better than temping, especially if they want to keep you . Hope all the sums work out for you!

Oh, sorry. Didn't read properly. Not sure what happens on fewer hours but same money .

Thanks meglet, I know, that's where the waters get muddy.

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