Visitors to Colombia can claim back value added tax on purchases of luxury items such as fashion, cosmetics, perfume, jewelry and electronics.
Pay on your credit card and keep both the store and credit card receipts. Leave extra time on your return journey and visit the DIAN office before check in (to the left of the Avianca check-in area). You'll need to spend more than around USD 110 to make a claim, and officials may ask to see the purchased items.