well your employer deducts the money from your wage b4 tax and national insurance, so no tax on it, and you can cliam upto £55 a week for each employed parent, if your a higher rate tax payer you can save a lot more, something like £2k a year me thinks
not good for everyone thou, if your getting tax creds, you have to tell the gov, and you could be worse off, so you have to do some sums
