Picfair is a UK-based company and for photographers who are both UK residents and registered for VAT, the price of their images will include this specific tax.
To add VAT number, head here and input this number in the shown area:
If this applies to you, you’ll see the VAT element of any sales you make itemised within the sales email notification you’ll receive. It is your responsibility to then report this accordingly.
If you’re a UK resident and not registered for VAT or you’re a non-UK resident, you can simply leave this area blank.