When must I issue an invoice?

Within 15 days of the taxable supply date (Art. 71(1) EU VAT Directive / § 71(1) Slovak VAT Act).

What if the client does not pay?

After the due date you are entitled to statutory late-payment interest. You can enforce the invoice via a payment order or court proceedings.

Is an electronic invoice as valid as a paper one?

Yes. An electronic invoice is fully valid, provided its authenticity and integrity are ensured throughout the 10-year archiving obligation.

What is a variable symbol?

A variable symbol is a numeric payment identifier that allows the recipient to match a payment to a specific invoice. We recommend using the invoice number as the variable symbol.

Commercial

Invoice

Invoice and tax document

Generate professional invoices with your logo and all required fields.

Start free Features

GDPR compliant · EU-hosted

Electronically sent invoices are paid 9 days faster on average

The average B2B payment term in Slovakia is 30 days

32 % of invoices contain an error that leads to a payment delay

Create an invoice including VAT, company ID, taxable event date, due date and variable symbol. Send it directly to the client.

Legal context

Invoices must comply with VAT Directive (2006/112/EC) transposed into national law. In Slovakia, Act 222/2004 on VAT sets the mandatory fields. Electronic invoices are fully valid under EU law.

VAT Directive 2006/112/EC; Slovak VAT Act 222/2004 § 74; Accounting Act 431/2002 § 10

Legal basis & glossary

When to use a Invoice

After delivering goods or providing a service
For monthly billing of recurring services
When the client needs a tax document for VAT deduction
For advance payment before work begins

What you get

VAT and tax fields
Logo and branding
Due date and penalties
Send by email

How it works

From idea to signature

VAT and tax fields

Logo and branding

Due date and penalties

FAQ

Frequently asked questions about Invoice

Supplier and buyer IDs, invoice date, taxable supply date, invoice number, description of supply, VAT base, VAT rate and amount, total amount payable.