Currently

VAT declarations are required 4 times a year in the UK, 13 times a year in Germany, 12 times a year in France, 12 times a year in Italy, and 5 times a year in Spain. This involves the financial cost of a tax agent, and the VAT declaration fee in the UK is the lowest. Secondly, according to the EU's distance sales law, under a certain annual sales limit, it is not necessary to register for local country VAT tax, for example, 100,000 euros in France and Germany, and 35,000 euros in Spain and Italy, so for most sellers, they only need to register for VAT in one country.