NI threshold for a qualifying year

How much is the NI threshold for a qualifying year of state pension. I have been on maternity so have credits. I also have mat pay which has meant I have also paid NI contributions. How do I know whether I have a full qualifying year from the credit or contributions? I want to transfer the credits to my mum who has looked after my children. But I'm not sure if it would mean I no longer had a full qualifying year

Hi,
If you are wanting to transfer child benefit credits (Specified Adult Childcare Credits) via a CA9176 form, one of the requirements for us to award a transfer is that the original claimant (you) will not be left with a gap if we were to transfer the credits to a relative.
If you would be left with a gap in the tax year if the credits were to be transferred, we would not award a transfer. 
The threshold for a qualifying year all depends which year/years you are wanting to transfer.
Please find a link below to the national insurance rates.
RRates and allowances: National Insurance contributions
If you want to check yourself, you can either set up a PTA on the Gov.UK website or contact us via phone or Webchat. Please find links below
Personal tax account: sign in or set up
Ask HMRC online - Ask HMRC - GOV.UK (tax.service.gov.uk)
Number 0300 200 3500
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Closed on Saturdays, Sundays and Bank Holidays.
Web Address www.hmrc.gov.uk/ni
Thank you.