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
Section titled “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 |
Which VAT rate is used
Section titled “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) | 5 |
| 4% — super-reduced (islands) | 6 |
| 0% — exempt | 7 |
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
Section titled “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
Selling outside Greece: OSS and exports
Section titled “Selling outside Greece: OSS and exports”If you ship to customers in other countries, turn on the matching scheme once in the app’s Settings. Both options are off by default.
| Destination | What the app does | Before you enable it |
|---|---|---|
| Greece | Nothing changes — the rules above apply | — |
| Another EU country (B2C) | Submits the order with the EU OSS treatment (myDATA VAT exemption category 30) | Register for the OSS Union scheme with AADE and enable EU VAT collection in Shopify’s tax settings |
| Outside the EU (for example the US) | Submits the order zero-rated as an export (myDATA VAT exemption category 29) | Confirm with your accountant that these are genuine exports |
What you’ll notice:
- The app checks the destination country. When a case is unclear, it shows a warning and asks you to confirm before submitting.
- If Shopify is collecting destination-country VAT on an order but OSS isn’t enabled in your settings, the app stops the submission and tells you which scheme to enable, so a wrong document never reaches AADE.
- Cross-border PDFs show an OSS / export notice box.
- A credit note for a cross-border document repeats the original document’s scheme, so AADE accepts it.