National Insurance underpaid 20 years ago

[breakdown19]

So when doing my tax I looked into my ni contribs and it's showing that I underpaid for the three years I was at university. It's a small amount like £200 or something
I worked on lots of small paye jobs at the time, all likely emergency taxed too 🙄
How do I put this record straight?

Thanks @SynchroSwimmer I'll have a look at that

I checked the NI positions for students, they definitely lead to a gap unless Which has got it wrong

www.which.co.uk/money/tax/national-insurance/national-insurance-contributions-amy9d6y7gfwh

Mine is the same as @Ifailed - poly in the 80s and missing years for that time for NI. Didn't know there was a distinction between university and a poly though. Is that right?

I was at uni in the mid 1980s and I have two of those years that didn’t qualify for NI credits (had to do fieldwork during the summers so no chance of getting a summer job).

After 1975 you were given NI starting credits for the tax year in which you turned 16 and for the following for 2 years even if you stayed in education - lots of people left school after O levels / CSEs to work or go into apprenticeships, so the credits were to ensure that staying on in education didn’t penalise you in terms of NI records. This was abolished in 2010.

So the third year of the starting credits covered my first tax year at uni, I received no credits for the second and third years, and then as I started earning and paying NI my record fills up again.

So no, no difference between attending a university or a polytechnic.