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How do I actually pay Voluntary National Insurance contributions for a shortfall.

I have checked my state pension forecast and it says I have
  • 43 years of full contributions
  • 4 years to contribute before 5 April 2026
  • 3 years when you did not contribute enough
I spoke to my pension adviser and he said to contribute the approx 3 x £800

How do I do this?
Can I use the same account number if use for Self assessment Income tax?
It mentions obtaining an 18 digit reference number - WHY DO THEY MAKE THIS DO COMPLEX?

I found this on
https://www.gov.uk/pay-voluntary-class-3-national-insurance

Is it possible to obtain (calulate) my C3NI from my old school NI number starts WKNNNNNNL format?


I've tried phoning them most days, but no joy so far.
I tried looking at my NI letter
https://www.tax.service.gov.uk/personal-account/national-insurance-summary/print-letter
But that only has the one above.

Is there a definitive guide how to make voluntary payments?



Fred Bloggs
«13

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