Slovak invoices need precise DPH fields and issue dates. Everhour supports billable-time workflows that feed client invoicing.
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You need an invoice that a Slovak customer can process, match to the contracted work, and pay without clarification. For VAT invoices, Act No. 222/2004 Coll. on VAT controls the core fields, including seller and buyer details, VAT IDs where applicable, a sequential invoice number, supply or payment date, issue date, line-item scope, taxable bases, VAT rates, and VAT amount in euros.
The practical job is narrower than accounting theory. You need to turn work performed, services delivered, or goods supplied into a document with the right Slovak DPH treatment, payment term, and client-facing detail. A Slovakia-focused invoicing app should help you avoid missing the supply date, using the wrong VAT label, or sending a document that lacks the buyer details required for the transaction.
Slovakia uses value added tax called daň z pridanej hodnoty, or DPH. The 2026 VAT Act sets a 23% standard rate and reduced rates of 19% and 5% for listed goods and services. A VAT invoice must show the taxable base for each VAT rate, the unit price excluding VAT, discounts or rebates not already included in the unit price, the VAT rate or exemption, and the total VAT payable in euros.
VAT registration changes the invoice. A Slovakia-established taxable person becomes a VAT payer from the first day of the next calendar year after taxable turnover exceeds €50,000 in the previous calendar year, or from the supply that causes current-year turnover to exceed €62,500. If a supply is exempt, the invoice must cite the Slovak VAT Act or EU VAT Directive provision or state that the supply is exempt.
A Slovak 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. If no payment period is fixed in a commercial contract, late-payment interest becomes payable 30 calendar days after invoice receipt under EU commercial transaction rules.
Slovakia has a B2G e-invoicing mandate for public procurement, and public authorities must accept EN 16931-compliant e-invoices. B2B and B2C e-invoicing are not currently mandatory in 2026. Domestic B2B e-invoicing and real-time reporting are planned from January 1, 2027, with intra-EU reporting from July 1, 2030. If an invoice is issued or received in a foreign language, the tax office can request a Slovak translation for inspection.
A one-off invoice is enough when you have a single service, fixed fee, known VAT treatment, and all client details ready. It works for a clean consulting job, a simple goods sale, or a small project where the invoice does not need to pull from approved timesheets, expenses, project budgets, or recurring client rules.
A managed workflow becomes necessary when billable time, non-billable work, expenses, taxes, discounts, payment terms, and accounting handoff repeat across clients. Everhour Billing & Invoicing converts tracked billable time and expenses into invoices, calculates amounts from rates while excluding non-billable tasks, supports client settings and invoice customization, and exports invoices to QuickBooks Online, Xero, or FreshBooks with status sync back to Everhour.
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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A Slovak VAT invoice must include seller and buyer identity details, VAT IDs where applicable, a sequential invoice number, supply or payment date when determinable and different from the issue date, issue date, quantity or service scope, taxable base by VAT rate, unit price excluding VAT, discounts or rebates, VAT rate or exemption, and total VAT payable in euros.
Slovakia's DPH system has a 23% standard rate in 2026, with 19% and 5% reduced rates for listed goods and services. The invoice should apply the rate that matches the actual supply. If the supply is exempt, the invoice should state the exemption basis instead of adding a VAT amount.
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. The issue date and supply or payment date should both appear when they differ.
B2G e-invoicing is mandatory for public procurement in Slovakia, and public authorities must accept EN 16931-compliant e-invoices. B2B and B2C e-invoicing are not currently mandatory in 2026. Domestic B2B e-invoicing and real-time reporting are planned from January 1, 2027.
Leaving the due date unclear creates collection problems. 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 to June 30, 2026 is 10.15%, with €40 flat recovery-cost compensation per late invoice.
Everhour Billing & Invoicing turns tracked billable time and expenses into invoices, calculates amounts from rates, and excludes non-billable tasks from billable totals. Client settings can store contacts, taxes, discounts, and payment terms, while invoices can be customized before export to QuickBooks Online, Xero, or FreshBooks.
Everhour converts approved billable time and expenses into invoices with client defaults, customizable terms, and accounting exports, giving teams a cleaner billing workflow.
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