Slovakia invoices need correct DPH/VAT details and timing. Everhour keeps billable work organized before billing starts.
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Invoicing software for Slovakia should help you produce a clear invoice for services, goods, project work, or reimbursable costs billed to a Slovak customer. The practical job is simple: enter the seller and buyer details, describe the work, apply the right VAT treatment, set the payment terms, and send a document the customer can process without asking for missing fields.
Slovak VAT invoices are governed by Act No. 222/2004 Coll. on VAT. A VAT invoice generally must 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. That timing matters when month-end billing, deposits, and delivery dates do not match.
A Slovak VAT invoice needs the supplier's name or business name, address, and VAT identification number. It also needs 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 date of supply or payment receipt when that date is determinable and differs from the issue date.
The line section should state 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 already included in the unit price, the VAT rate or exemption, and the total VAT payable in euros. If a supply is exempt, self-billed, or reverse charged, use the required wording rather than a vague tax note.
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. 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.
A simplified invoice is available only within specific limits. It can cover goods or services up to €100 including VAT, or an e-kasa cash-register document or unattended fuel-machine document up to €400 including VAT. Slovakia also has B2G e-invoicing for public procurement, while B2B and B2C e-invoicing are not currently mandatory in 2026.
A one-off invoice tool is enough when you have a small job, a known buyer, a simple VAT position, and a few lines to bill. It works best when the source records already show what was delivered, who approved it, which rate applies, and whether each line is billable. You still need a reliable archive for issue dates, invoice numbers, and payment follow-up.
A managed workflow matters when billable and non-billable work sit inside the same project. Everhour lets admins set project billing status, mark specific tasks as non-billable, use custom task rates, set member-rate exceptions, and report on billable time, non-billable time, billable amount, and cost. That structure keeps invoice totals tied to the work record instead of a manual reconstruction.
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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Slovakia invoicing software should support DPH/VAT at the 23% standard rate and the 19% and 5% reduced rates for listed supplies under the 2026 VAT Act. The invoice should separate the taxable base for each VAT rate and show the total VAT payable in euros, rather than blending different tax treatments into one untitled tax amount.
A Slovak VAT invoice must show the supplier's VAT identification number. It must also show the recipient's VAT identification number where the supply was made under that number. Treat buyer VAT ID as a conditional field, then confirm whether the transaction, customer status, and VAT treatment require it before sending the invoice.
B2B and B2C e-invoicing are not currently mandatory in Slovakia in 2026. Slovakia does require 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 1 January 2027, with intra-EU reporting from 1 July 2030.
A VAT-exempt supply must cite the relevant 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. Generic wording creates review friction because the tax treatment is unclear.
For EU commercial transactions, late-payment interest becomes payable 30 calendar days after invoice receipt when the contract does not set a payment period. Slovakia's statutory late-payment rate for 1 January-30 June 2026 is 10.15%, with a €40 flat recovery-cost compensation per late invoice.
Everhour supports billable and non-billable time through project billing status, task-level non-billable controls, custom task rates, and member-rate exceptions. Admin reports can show billable time, non-billable time, billable amount, and cost, so the invoice total reflects approved work instead of every logged hour.
Use Everhour to separate billable from non-billable work before invoice prep, then keep rates, task status, and billing reports aligned with each client invoice.
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