Please help me work out tax on maternity pay

[MondayBlues123]

I was wondering if any of you very kind and clever people could help me work out what net pay I am looking at when I go on maternity leave from 2nd January. I just can't get my head around the tax and NI side of things. This should be my gross earnings for the year:

April 2019: 1700
May 2019: 1700
June 2019: 1700
July 2019: 1700
August 2019: 1700
September 2019: 1700
October 2019: 1700
November 2019: 1700
December 2019: 1700
January 2020: 1513
February 2020: 945
March 2020: 680

I have been paying 5% pension out of that, so about £85 per month (really not enough, I know )

So is anyone able to tell me what I might actually come out with in January, February and March? And whether I'm likely to overpay and be due a rebate or end up owing extra?

Thanks so much.

Assuming you're PAYE, you'll have been taxed as though you were going to earn £1700 every month for the year, so will likely be due a small rebate at the end of the tax year.

Assuming your on the standard tax code 1250L WITHOUT a week1/month1 marker (x), you'll get a small tax refund through your wages and Feb (~£20) and a bigger tax refund in March (~£70). That'll sort your tax for the year, nothing more to pay nor any refund at the year end.

If you have a week1/month1 marker (or x), then it won't get sorted during the year and you'll have a refund due after the year end.

If your tax code is different (i.e. not 1250) then the figures will all be different.

Thanks very much both, certainly good to know I won't owe anything.
@Kazzyhoward do you mean I'll be taxed as usual in January, but then won't be taxed at all in Feb or March pay (actually given a little bit of tax back)?