Value-added tax - Wikipedia
en.wikipedia.org
A value-added tax (VAT), goods and services tax (GST), or general consumption tax (GCT) is a consumption tax that is levied on the value added at each stage of a product's production and distribution. VAT is similar to, and is often compared with, a sales tax.
Check a VAT number (VIES) - Your Europe
europa.eu
VIES (VAT Information Exchange System) is a search engine (not a database) owned by the European Commission. The data is retrieved from national VAT databases when a search is made from the VIES tool.
VAT - Taxation and Customs Union - European Commission
taxation-customs.ec.europa.eu
Value Added Tax (VAT) is a consumption tax on the value added to nearly all goods and services bought and sold in and into the European Union. VAT is an important own resource for the EU budget.
VAT - GOV.UK
www.gov.uk
VAT for building and construction VAT for builders Reclaim VAT on a self build home Check when you must use the VAT domestic reverse charge for building and construction services
Vies on-the-Web - European Commission
ec.europa.eu
You can verify the validity of a VAT number issued by any Member State / Northern Ireland by selecting that Member State / Northern Ireland from the drop-down menu provided, and entering the number to be validated.
Turkey: Comprehensive VAT Country Guide (2026) – VATupdate
www.vatupdate.com
Some transactions in Turkey are not subject to VAT either because they are zero-rated (taxed at 0%, with the right to deduct input VAT) or exempt (no VAT charged, but also no input VAT recovery on related purchases).
Online VAT calculator
vatcalconline.com
Simply enter the gross sum, choose vat calculation operation (include or exclude), tax percentage and press «Calculate» or Enter button to calculate VAT amount.