How much will I be paid after tax?

If that is your total earnings then you will not reach the threshold to pay Income Tax or National Insurance Contributions.

Free app on hmrc.gov.uk to calculate tx.

It all depends on how thick the payroll officer at your new job is. If the payroll person is super thick, she will put you on a tax code of BR (which stands for basic rate tax) and you will end up paying 20% tax on whatever you earn.

Most payroll officers in most companies are thick and lazy so it is up to you to insist that she provides you with a P46 form to fill in and after you have filled it in, she will be forced to put you on a tax code of 810L which means you won't pay any tax on your £320 per month.

It depends what tax code you are on. You will either be on an emergency tax code or a low tax code. You will probably not have to pay tax for the first few months until you have earned over a certain amount. I was on a low tax code when I started work and was allowed to earn £5650 before paying tax.

We cannot answer this question without knowing your tax code which tells us your tax free personal allowance.

Most people have a tax code of 810L which means they may earn £8105 per year tax free.

£320 per month is less than 8105 so if your tax code is 810L and this is your only income you will pay no tax.

If this is your only income, then you would fall below the tax and National Insurance threshold. The ListenToTaxman and Prudential web sites both indicate you not be paying tax at all.

You don't earn enough to pay income tax

You start paying income tax on earnings above £155 a week, so you're under that,

so you won't pay tax at all

Nothing, because your first £8100 a year doesn't get taxed, that is the basic allowance for most people.

yes it could be free tax

try this:

http://www.uktaxcalculators.co.uk/