VAT & Pricing

Every document submitted to myDATA must show the net value and the VAT amount separately, even when your storefront shows a single price. This page explains how we derive both from your Shopify order.

Inclusive vs Exclusive prices

Shopify has a store-level setting under Settings → Taxes and duties that decides whether your product prices already contain VAT.

Mode	What it means	How the document is built
VAT included in the price (in-price)	The price the customer sees already contains VAT. Most Greek stores work this way.	The gross amount is split: net = price ÷ (1 + VAT rate), VAT = price − net
VAT added on top (out-of-price)	The listed price is net; VAT is added at checkout.	The listed price is the net value, VAT = net × VAT rate

In both cases the total on the receipt or delivery note matches exactly what the customer paid — only the presentation of net and VAT differs.

Example at 24%:

	In-price (VAT included)	Out-of-price (VAT added)
Price shown	€24.80	€20.00
Net value	€20.00	€20.00
VAT	€4.80	€4.80
Customer pays	€24.80	€24.80

Note

If Shopify does not report which mode your store uses, we treat prices as VAT included, since that is the standard for Greek and EU retail.

Which VAT rate is used

The rate is taken per line item, exactly as Shopify applied it to the order, and mapped to the corresponding myDATA VAT category:

Rate	myDATA category
24% — standard	1
13% — reduced	2
6% — super-reduced	3
9% — reduced (islands)	4
4% — super-reduced (islands)	5
0% — exempt	6

This means a mixed basket (for example books at 6% and accessories at 24%) is submitted with the correct rate on each line.

If you haven’t configured tax collection in Shopify

If the tax mechanism isn’t set up in your store — no tax is charged on products, so the order carries no tax rate — there is nothing for us to read from the order. In that case:

• We apply the Default VAT Rate from the app’s Settings page.
• Out of the box this default is 24% (standard rate).
• The same 24% standard rate is used if an order carries a rate that isn’t a valid Greek VAT rate.

You can change this. Go to Settings → Default VAT Rate and pick the rate that applies to most of your products:

• 24% — standard
• 13% — reduced
• 6% — super-reduced
• 9% — reduced (islands)
• 4% — super-reduced (islands)
• 0% — VAT exempt

Caution

The Default VAT Rate is a fallback only. Whenever Shopify provides a rate on the order, that rate wins. If you sell products at more than one VAT rate, configure taxes properly in Shopify — a single fallback rate cannot describe a mixed catalogue correctly.

Tip

Not sure which applies to you? Open any recent order in Shopify: if a tax amount is shown on the order, your rates come from Shopify. If no tax appears anywhere, the Default VAT Rate in Settings is what will be used.