Slovak VAT invoices need DPH details and issue-date discipline. Everhour turns tracked billable work into client invoices.
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Use this page when you need to prepare and send an invoice to a Slovak customer by email, especially for services, project work, consulting, or recurring client billing. The finished invoice should identify both parties, describe the goods or services, show the correct DPH/VAT treatment, and give the buyer a clean payment path.
Slovak VAT invoices are governed by Act No. 222/2004 Coll. on VAT. A VAT invoice must generally be issued within 15 days from the supply of goods or services, from receiving an advance payment, or from the end of the relevant calendar month for specified exempt or cross-border supplies. Email delivery does not remove that timing requirement.
A Slovak VAT invoice must state the supplier's name or business name, address, and VAT identification number. It must also state the recipient's name or business name, address, and VAT identification number where the supply was made under that number. Add a sequential invoice number, the issue date, and the supply or payment receipt date when that date is determinable and differs from the issue date.
Line items need the quantity and type of goods, or the scope and type of service. Show the taxable base for each VAT rate, the unit price excluding VAT, discounts or rebates not included in the unit price, the VAT rate or exemption, and the total VAT payable in euros. Slovakia's DPH/VAT rates for 2026 are 23%, 19%, and 5%, with reduced rates limited to listed supplies.
A PDF invoice attached to an email is practical for many Slovakia B2B and B2C transactions in 2026 because B2B and B2C e-invoicing are not currently mandatory. Slovakia does mandate B2G e-invoicing for public procurement, and public authorities must accept EN 16931-compliant e-invoices. Domestic B2B e-invoicing and real-time reporting are planned from January 1, 2027.
Email the invoice with a direct subject line, the invoice number, the buyer name, and the due date. If the invoice is issued or received in a foreign language, the VAT payer or taxable person must provide a Slovak translation when the tax office requests one for inspection. For EU commercial transactions with no agreed payment period, late-payment interest becomes payable 30 calendar days after invoice receipt.
A one-off invoice works when you already know the exact work, buyer details, VAT treatment, payment term, and invoice wording. It is enough for a single project, a correction sent quickly, or a small client file where you store the final PDF and email separately. Keep the email, invoice, and proof of delivery together so the issue date and receipt trail stay easy to find.
A managed workflow becomes cleaner when tracked time, billable expenses, approvals, and client terms feed invoices each month. Everhour Billing & Invoicing converts uninvoiced billable time and expenses into invoices, calculates amounts from rates while excluding non-billable work, applies client defaults such as taxes, discounts, and payment terms, and exports invoices to QuickBooks Online, Xero, or FreshBooks.
This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.
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Yes. For B2B and B2C transactions, Slovakia does not currently require mandatory e-invoicing in 2026, so an invoice can be sent by email when the document contains the required Slovak VAT invoice details. Public procurement is different because Slovakia has a B2G e-invoicing mandate, and public authorities must accept EN 16931-compliant e-invoices.
Slovakia's DPH/VAT system uses a 23% standard rate in 2026, with 19% and 5% reduced rates for listed goods and services. Use the rate that applies to the specific supply. If the supply is exempt, the invoice must cite the Slovak VAT Act or EU VAT Directive provision or state that the supply is exempt.
Yes. A Slovak VAT invoice must show the total VAT payable in euros. The invoice should also show the taxable base for each VAT rate, the unit price excluding VAT, discounts or rebates not included in the unit price, and the VAT rate or exemption. This euro VAT requirement matters even when the commercial price is agreed in another currency.
A VAT-exempt supply must cite the Slovak VAT Act or EU VAT Directive provision or state that the supply is exempt. A self-billed invoice must state "vyhotovenie faktúry odberateľom." A reverse-charge invoice must state "prenesenie daňovej povinnosti." Missing wording creates avoidable review work for the buyer and the tax file.
For EU commercial transactions, if no payment period is fixed in the contract, late-payment interest becomes payable 30 calendar days after invoice receipt. Slovakia's statutory late-payment rate for January 1 through June 30, 2026 is 10.15%, with a €40 flat recovery-cost compensation per late invoice.
Everhour Billing & Invoicing lets you select uninvoiced billable time and expenses, preview the invoice breakdown, and generate an invoice without rebuilding timesheets manually. It calculates invoice amounts from rates, time, and billable expenses while excluding non-billable work, then exports invoices to QuickBooks Online, Xero, or FreshBooks.
Track approved billable time, apply client terms, and generate invoices from the same workflow. Everhour keeps invoiced time marked as invoiced, reducing duplicate billing risk.
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