Mr_Jiggly_669

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,