According to the EU's MOSS Tax Procedure Regulations, if you are a consumer based in an EU Member State, you are subject to VAT (Value Added Tax) at the rate applicable for the country of your origin.
If you are a consumer based in Australia, India, Japan, New Zealand, Norway, Switzerland, South Africa, South Korea, Taiwan or select US states ( Alabama, Arizona, Indiana, Maine, Massachusetts, Nebraska, Pennsylvania, Rhode Island, South Dakota, Texas, and Vermont ), then you may also be subject to VAT, GST (Goods and Service Tax) or a local sales tax at the rate that is applicable for the country/state of your origin.
If you have a valid VAT / GST number, you may be able to provide it along with your company name during checkout for a tax-free purchase (depending on your local legislation).
Or contact Paddle support directly: www.paddle.net or help@paddle.com