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Plans, credits and billing

Invoices, receipts and currency

Updated September 11, 2026

On this page

Getting an invoice

Every charge produces an invoice: your plan, every renewal, a monitoring slot pack, a credit pack. Demarka is a Portuguese company, so the invoice is a Portuguese Fatura-Recibo (invoice and receipt in one), issued through certified invoicing software and registered with the Portuguese Tax Authority.

  • By email. The invoice arrives as a PDF a few minutes after the payment goes through, sent to the email on your account. Nothing needs requesting.
  • In the app. For one-time purchases such as credit packs, Order history at the bottom of the billing page links the invoice in its Invoice column.

The PDF may use Portuguese headings — Fatura-Recibo, NIF (tax number), IVA (VAT) — which any accountant in the EU will recognise.

If you cannot find an invoice, send support the charge date and we will send it again.

Your own record of what a charge paid for

An invoice tells your accountant what you were charged. Order history tells you what it bought: the items, the status, the total, and which assessments consumed it.

What is on the invoice

Every invoice carries our side in full: the legal entity behind Demarka, its registered address in Portugal and its EU VAT number, plus the invoice number, ATCUD code and QR code that Portuguese law requires. That is what makes the invoice usable as a supplier document for your bookkeeping.

Putting your own company details on an invoice

The invoice is addressed to the name, billing address and VAT number entered at checkout. Checkout always asks for your billing address; buying as a business lets you add your company name and VAT number there too. Subscription renewals use the details on file, which you can update in the payment portal under Manage billing on the billing page.

Enter your details before you pay. Portuguese law does not allow an issued invoice to be edited: if one needs correcting, send support the charge date along with the company name, address and tax number to use, and we will cancel it with a credit note and issue a corrected invoice.

Tax

Tax is worked out at checkout from your billing address and VAT number, and shown before you pay:

  • Businesses in the EU with a valid VAT number are not charged VAT. The invoice is marked IVA – autoliquidação (reverse charge), and you account for the VAT in your own country.
  • Customers in Portugal, and individuals elsewhere in the EU, pay VAT, shown as a separate line at checkout and on the invoice.
  • Customers outside the EU are not charged VAT.

How you then treat the charge in your own books depends on your country and status, so take it to your accountant rather than inferring it from this page.

Which currency you are charged in

Everything on Demarka is priced and charged in US dollars (USD). Plans, credit packs and monitoring slot packs all carry USD prices, and checkout is presented in USD.

There is no currency selector. You cannot switch the pricing page, the checkout or your invoices to euros, pounds or any other currency.

If you pay with a card issued in another currency, your bank converts the amount at its own rate and may add a foreign-transaction fee. That conversion happens entirely on your bank’s side — Demarka only ever sees the USD figure, and that USD figure is what appears on the invoice.

What this means in practice

  • The amount on your bank statement will not exactly match the USD price, and will differ slightly between two charges of the same size, because the exchange rate moves.
  • For accounting, your invoice is the authoritative document; it states the USD amount and the date, which is what your bookkeeper needs to apply the right rate.
  • Annual billing means one conversion a year instead of twelve, which is worth a little on a non-USD card.

Refunds

Refunds are returned to the original payment method in USD, so the amount that lands back in your account depends on your bank’s rate on the day of the refund rather than the day of the charge.

Every refund also produces a credit note (Nota de Crédito) against the original invoice, emailed to you the same way as the invoice.

The refund policy sets out what qualifies.