---
title: "Quittio\\Core\\Documents – API-Referenz"
description: "The public classes in Quittio\\Core\\Documents."
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> Index of every page on this site: [llms.txt](https://quittio.dev/llms.txt)

[API reference](https://quittio.dev/docs/api)

# Quittio\\Core\\Documents

## quittio/core \#

### [Quittio\\Core\\Documents](https://quittio.dev/docs/api/Quittio/Core/Documents)

- [`AccountStatement`](https://quittio.dev/docs/api/Quittio/Core/Documents/AccountStatement)Account statement for a customer: open and paid invoices of a period.
- [`BonusStatement`](https://quittio.dev/docs/api/Quittio/Core/Documents/BonusStatement)Data of a bonus statement: a reduction of the consideration of all supplies of a period, e.g. an annual bonus, documented in one statement instead of one document per invoice (in Germany section 17 (4) UStG). The reduction per VAT rate is in the lines of the document.
- [`DocumentBuilder`](https://quittio.dev/docs/api/Quittio/Core/Documents/DocumentBuilder)Fluent builder for documents. Parties, lines, notes, discounts and payment data work exactly like in the {@see InvoiceBuilder}.
- [`DocumentCalculator`](https://quittio.dev/docs/api/Quittio/Core/Documents/DocumentCalculator)Calculates documents with the invoice calculator. Optional and alternative lines get their line amounts but are excluded from the totals.
- [`DocumentData`](https://quittio.dev/docs/api/Quittio/Core/Documents/DocumentData)Quote, order confirmation, delivery note, proforma invoice, payment reminder, account statement or bonus statement. Shares parties, lines and calculation with {@see InvoiceData}, but never produces e-invoice XML. Payment reminders and account statements have no lines: their amount comes from {@see Dunning} and {@see AccountStatement}.
- [`DocumentLineOptions`](https://quittio.dev/docs/api/Quittio/Core/Documents/DocumentLineOptions)Document specific line details, keyed by line identifier in {@see DocumentData}.
- [`DocumentType`](https://quittio.dev/docs/api/Quittio/Core/Documents/DocumentType) enumCommercial documents that share templates and calculation with invoices but carry no e-invoice XML.
- [`Dunning`](https://quittio.dev/docs/api/Quittio/Core/Documents/Dunning)Data of a payment reminder: open items, fees, interest and the new deadline.
- [`DunningFee`](https://quittio.dev/docs/api/Quittio/Core/Documents/DunningFee)Fee of a payment reminder (e.g. costs of the reminder, flat rate according to national law).
- [`DunningFeeKind`](https://quittio.dev/docs/api/Quittio/Core/Documents/DunningFeeKind) enumWhat a fee of a payment reminder is.
- [`InterestCharge`](https://quittio.dev/docs/api/Quittio/Core/Documents/InterestCharge)Default interest on an open amount for a period (simple interest).
- [`OpenItem`](https://quittio.dev/docs/api/Quittio/Core/Documents/OpenItem)An invoice in a payment reminder or account statement.
- [`Package`](https://quittio.dev/docs/api/Quittio/Core/Documents/Package)Package of a delivery note.

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