Small amount of VAT underpayment outstanding from years ago

Hello, About 7 years ago I did some contracting via a VAT registered LTD Co, invoicing an agency. I initially started with the LTD Co using a subscription accounting service. Before the end of the first year, I found out they hadn't been doing my books in line with their 'service' sales offering, so I cancelled and lost access to the online software. I started doing my own accounting/PAYE & VAT/CORP tax submissions. The LTD Co. has had long dormant periods where I have been in PAYE job roles and 'dormant status'. It has never required an audit or to submit full accounts. Recently I have redone the accounts from the beginning and found a small VAT underpayment (~£30) from around when I got rid of the 'accounting service' and started doing my own books. My question is, is there an easy/pain free way to pay this small amount to HMRC with interest to avoid having to resubmit 5-6 years of VAT submissions/correction :-( Would it trigger an audit? Thanks,

Hi,
If you are VAT registered then you need to submit all your VAT returns by the due date. You can see guidance here:
Sending a VAT Return
If you make an error on a VAT return please refer to the guidance here regarding correcting errors:
Correct errors in your VAT Return
The time limit for correcting errors is normally 4 years.
We could not comment on whether a VAT compliance check would be actioned as this is business specific and dependent on many different factors. Guidance on compliance checks can be seen here:
HMRC compliance checks: help and support
Thank you.

Hello, Thank you for your reply. If the error originates from more than 4 years ago? Thanks,

Hi,
Please can you clarify what your question is?
Thank you.

Hi, You stated "The time limit for correcting errors is normally 4 years". My small VAT difference originates from sales made 6 years ago. The calculation error occurred more than 4 years ago. My question is: As my error occurred over 4 years ago and is outside of the 4 year error correction time-limit, what do I do with it? Can I just write it off? Thanks,

Hi,
We would still report this error as an error correction and the Error Correction Team can decide whether they need to act on it.
Please see below:
Tell HMRC about errors in your VAT Return
Thank you.