Do booking.com add UK vat to their commission; ie can I reclaim? Not sure as I think they are Dutch based?

Hi there, @davidmaclean-tis.

Yes, you're right Booking.com is a Dutch online travel agency for lodging reservations and other travel products. 

With regard to your vat concerns, it would be best to contact Booking.com customer support. That way, they can verify if they're adding UK VAT to their commission. 

I'm also adding these articles to help manage your VAT returns.

• Learn how to record, adjust and delete VAT payments in the VAT centre.
• File your VAT return and record tax payments in QuickBooks Online.

Let me know if there's anything else I can help you with VAT concerns in QuickBooks. I'll be right here to provide the information that you need.