Published: 2026-05-11Updated: 2026-05-115 min read
Online invoicing is fastest when the issuing company, customer, numbering, and payment details are prepared.
Core data
Check legal name, address, company ID, tax ID, VAT ID, IBAN, prefix, and numbering.
For accountants, issuing invoices for multiple companies and using a shared customer address book matters.
Outputs
PDF is for the customer, while XML or e-invoice output is useful for accounting systems.
When a draft changes, regenerate all outputs so totals stay aligned.
Workflow
After issuing, send the email, track status, payment, and overdue reminders.
FAQ
Is how to issue an online invoice in slovakia legal or accounting advice?
No. OnlineOffice provides working tools and materials. Important outputs should be reviewed against the specific situation.