If the supplier is outside the UK and they know you’re vat registered then they shouldn’t have charged you any Irish VAT (so the invoice won’t show any), and it should say something on the invoice to the effect that “reverse charge applies” or “purchaser is responsible for accounting for their own VAT”. You will need to reverse charge the invoice, which isn’t something QuickFile supports but there are a couple of workarounds that I detailed on another thread in the last day or two.