Calculating VAT
To get from net to gross, use net × (1 + VAT rate), so a factor of 1.2 at 20%. The other way round, divide the gross amount by 1.2 to get the net amount. The calculator rounds to whole cents like an invoice and shows the VAT separately.
Showing Skonto correctly
Skonto is a discount for paying early, typically „14 Tage 2 % Skonto, 30 Tage netto“ (2% discount within 14 days, net 30 days). It is calculated on the gross amount. If the customer deducts it, the price goes down and the VAT with it; your bookkeeping corrects the VAT proportionally. On the quote, the percentage and the period are enough; the calculator gives you the wording and the actual dates from the invoice date.
Which note when?
- Reverse charge: for services to businesses in another EU country, the customer owes the VAT. The document shows no VAT amount, both VAT IDs and the note „Steuerschuldnerschaft des Leistungsempfängers“ (reverse charge).
- Intra-Community supply: deliveries of goods to businesses in the EU are VAT-exempt, with a note and the customer's VAT ID.
- Export: deliveries to non-EU countries are VAT-exempt („Steuerfreie Ausfuhrlieferung“), with proof of export.
- Small business (Kleinunternehmer): no VAT, but the statutory note, under § 6 Abs. 1 Z 27 UStG in Austria and § 19 UStG in Germany.
In PrestoCRM you set the tax case per customer; every quote then uses the right rate and prints the matching note.