---
title: "Quittio\\Core\\Builder – API-Referenz"
description: "The public classes in Quittio\\Core\\Builder."
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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\\Builder

## quittio/core \#

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

- [`InvoiceBuilder`](https://quittio.dev/docs/api/Quittio/Core/Builder/InvoiceBuilder)Fluent builder for InvoiceData.
- [`Line`](https://quittio.dev/docs/api/Quittio/Core/Builder/Line)Starts an invoice line for InvoiceBuilder::line() and lines() without a callback: ->line(Line::make('Consulting', netPrice: '120.00')->sellerId('C-1')). Simple lines need no builder: ->line('Consulting', netPrice: '120.00', quantity: 4, unit: UnitCode::Hour).
- [`LineBuilder`](https://quittio.dev/docs/api/Quittio/Core/Builder/LineBuilder)Fluent builder for an invoice line (BG-25).
- [`Party`](https://quittio.dev/docs/api/Quittio/Core/Builder/Party)Starts a seller or buyer for InvoiceBuilder::seller() and buyer() without a callback: ->buyer(Party::make('Kunde AG')->vatId('DE987654321')->address('Weg 1', '54321', 'Beispielstadt', 'DE')).
- [`PartyBuilder`](https://quittio.dev/docs/api/Quittio/Core/Builder/PartyBuilder)Fluent builder for the seller (BG-4), the buyer (BG-7) and the payee (BG-10).
- [`PaymentTermsBuilder`](https://quittio.dev/docs/api/Quittio/Core/Builder/PaymentTermsBuilder)Fluent builder for structured payment terms (BT-20, BT-9).

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

- [`BuildsAllowancesAndCharges`](https://quittio.dev/docs/api/Quittio/Core/Builder/Concerns/BuildsAllowancesAndCharges) traitDocument level allowances and charges (BG-20, BG-21) and discounts split over the VAT rates.
- [`BuildsDelivery`](https://quittio.dev/docs/api/Quittio/Core/Builder/Concerns/BuildsDelivery) traitDelivery information (BG-13) and the invoicing period (BG-14).
- [`BuildsExtensions`](https://quittio.dev/docs/api/Quittio/Core/Builder/Concerns/BuildsExtensions) traitData of the EXTENDED profile and of the XRechnung extension.
- [`BuildsHeader`](https://quittio.dev/docs/api/Quittio/Core/Builder/Concerns/BuildsHeader) traitInvoice number, dates, type, currencies, business process and standard version.
- [`BuildsLines`](https://quittio.dev/docs/api/Quittio/Core/Builder/Concerns/BuildsLines) traitInvoice lines (BG-25) and their groups.
- [`BuildsNotesAndAttachments`](https://quittio.dev/docs/api/Quittio/Core/Builder/Concerns/BuildsNotesAndAttachments) traitInvoice notes (BG-1) and supporting documents (BG-24).
- [`BuildsParties`](https://quittio.dev/docs/api/Quittio/Core/Builder/Concerns/BuildsParties) traitSeller, buyer, payee and tax representative (BG-4, BG-7, BG-10, BG-11).
- [`BuildsPayment`](https://quittio.dev/docs/api/Quittio/Core/Builder/Concerns/BuildsPayment) traitPayment instructions (BG-16 to BG-19), payment terms and the prepaid and rounding amounts (BT-113, BT-114).
- [`BuildsPresentationAndMeta`](https://quittio.dev/docs/api/Quittio/Core/Builder/Concerns/BuildsPresentationAndMeta) traitPresentation, locale, time zone, custom values, flags and the source of the invoice.
- [`BuildsReferences`](https://quittio.dev/docs/api/Quittio/Core/Builder/Concerns/BuildsReferences) traitDocument references (BT-10 to BT-19, BG-3) and the invoiced object.

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