Late registration and flat rate

Is it possible to use flat rate scheme if making late vat registration? Vat registration limit was hit over 18 months ago and will require registration, and consequent penalties paid, as well as the vat of course. But is it possible to register for flat rate at the same time? Understandably all invoices issued to customers over last 18 months have made no reference to vat.

Have a read of this guidance from HMRC's internal manuals. https://www.gov.uk/hmrc-internal-manuals/vat-flat-rate-scheme/frs3300

Hi,
That decision would be made by the flat rate scheme team and so apply for the scheme and they will be in contact with you. Please see below regarding how to apply for the flat rate scheme:
Eligibility and conditions of the scheme
Thank you.