Tax guide · Invoices and required data

Invoice required fields for companies and SMEs

A business invoice must combine the legal minimum with transaction-specific data needed by the buyer, tax reporting and the e-invoice profile. PDF, structured data and accounting entry should tell the same story.

01

What to verify

  • Supplier and customer identity and tax status

  • Invoice number, issue date, supply date and description

  • Net, tax category, tax amount, total and required wording

02

Practical workflow

  1. 1

    Capture the decisive facts and select the correct jurisdiction and date.

  2. 2

    Resolve the time-valid rule and record its source, version and open questions.

  3. 3

    Align invoice, accounting, reporting and evidence; route uncertainty to review.

03

Worked example

A manufacturer invoices a multi-line order. The PDF, XML and ERP entry are compared for matching parties, tax categories, buyer reference and totals.

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04

Common mistakes

  • !

    Copying master data from an old invoice without validation

  • !

    Producing different totals in the readable and structured invoice

  • !

    Using standard VAT wording without validating the transaction

05

Invoice and accounting impact

The result should be represented consistently in the invoice, structured data, accounting, reporting and evidence. If a decisive fact changes, the decision is recalculated and the previous version remains in the audit trail.

06

Legal basis and official sources

The page links to official primary sources. The actual decision is made by the versioned Dynafis rule set.