201 lines
6.9 KiB
ReStructuredText
201 lines
6.9 KiB
ReStructuredText
Design
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******
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The *Account Invoice Module* adds some new concepts and extends some existing
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concepts.
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.. _model-account.invoice:
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Invoice
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=======
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The main concept introduced by the *Account Invoice Module* is the *Invoice*.
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This contains details of a purchase, or sales, transaction between the
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`Company <company:model-company.company>` and another
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`Party <party:model-party.party>`.
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Each invoice has a type that indicates whether it is an invoice from a
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supplier, or to a customer.
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Credit notes are represented by invoices with negative totals.
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Additional information is also stored for each invoice, including things like
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a unique `Sequence <model-account.fiscalyear.invoice_sequence>` number,
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invoice, accounting and payment term dates,
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`Payment Terms <model-account.invoice.payment_term>`,
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`Tax Identifiers <party:model-party.identifier>`,
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`Currency <currency:model-currency.currency>` information,
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the customer's or supplier's invoice `Address <party:model-party.address>`,
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and other descriptions and reference numbers.
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An invoice is made up from one, or more, invoice lines.
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Most lines normally contain information about the items that were bought or
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sold, including information about the `Products <product:concept-product>`,
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quantities, `Taxes <account:model-account.tax>` and prices that make up the
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transaction.
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There are also some types of line that add other information like titles,
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descriptions or subtotals.
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The taxes that are included on an invoice are calculated from the tax
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amounts for each of the invoice's lines.
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These amounts are rounded at either the line or invoice level depending on the
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setting in the `Account Configuration <account:model-account.configuration>`.
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Additional taxes can be manually added to the invoice when required.
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It is also possible to change calculated tax amounts, although these changes
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get overwritten if the invoice's tax amounts get recalculated.
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For supplier invoice it is possible to define per line the deductible rate of
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the taxes.
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When an invoice is processed an `Account Move <account:model-account.move>` is
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automatically created for it.
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This account move records the transaction represented by the invoice and
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places the total in the specified payable or receivable
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`Account <account:model-account.account>`.
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.. note::
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For customer invoices the `Invoice Report <report-account.invoice>` is
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generated and stored at the point when the invoice is posted.
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.. seealso::
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Customer invoices and credit notes can be seen by opening the main menu
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item:
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|Financial --> Invoices --> Customer Invoices|__
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.. |Financial --> Invoices --> Customer Invoices| replace:: :menuselection:`Financial --> Invoices --> Customer Invoices`
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__ https://demo.tryton.org/model/account.invoice;domain=[["type"%2C"%3D"%2C"out"]]
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Supplier invoices and credit note are available from the main menu item:
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|Financial --> Invoices --> Supplier Invoices|__
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.. |Financial --> Invoices --> Supplier Invoices| replace:: :menuselection:`Financial --> Invoices --> Supplier Invoices`
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__ https://demo.tryton.org/model/account.invoice;domain=[["type"%2C"%3D"%2C"in"]]
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Wizards
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-------
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.. _wizard-account.invoice.pay:
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Pay Invoice
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^^^^^^^^^^^
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The *Pay Invoice* wizard allows a cash payment for an invoice to be registered
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against the invoice.
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It uses the values from an
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`Invoice Payment Method <model-account.invoice.payment.method>` when creating
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the `Account Move <account:model-account.move>`.
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The wizard supports partial payments, and can also be used to write-off some
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of the invoice amount.
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.. _wizard-account.invoice.credit:
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Credit Invoice
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^^^^^^^^^^^^^^
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The *Credit Invoice* wizard enables a credit note to be raised for the
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selected invoices.
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For customer invoices that are posted, the wizard allows the invoice to be
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credited with a refund.
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When this is done the credit note is automatically posted and the invoice is
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cancelled.
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Reports
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-------
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.. _report-account.invoice:
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Invoice
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^^^^^^^
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The *Invoice* report is used to output a hard copy of the invoice or credit
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note.
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It includes all the information that is needed in order to send the document
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to a customer or supplier.
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.. _model-account.invoice.payment.method:
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Invoice Payment Method
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======================
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The concept of an *Invoice Payment Method* brings together an
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`Account Journal <account:model-account.journal>`,
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a debit `Account <account:model-account.account>` and a credit account.
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This is normally used during the `Pay Invoice <wizard-account.invoice.pay>`
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wizard.
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.. seealso::
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Invoice payment methods can be found using the main menu item:
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|Financial --> Configuration --> Journals --> Invoice Payment Methods|__
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.. |Financial --> Configuration --> Journals --> Invoice Payment Methods| replace:: :menuselection:`Financial --> Configuration --> Journals --> Invoice Payment Methods`
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__ https://demo.tryton.org/model/account.invoice.payment.method
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.. _model-account.fiscalyear.invoice_sequence:
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Fiscal Year Invoice Sequence
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============================
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The *Fiscal Year Invoice Sequence* concept allows a set of
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`Sequences <trytond:model-ir.sequence.strict>` to be defined for use with
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`Invoices <model-account.invoice>`.
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It allows different sequences to be used for each of the different types of
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invoices and credit notes.
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It also allows the use of different sequences for each accounting
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`Period <account:model-account.period>`.
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.. seealso::
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The fiscal year sequences are defined in the
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`Fiscal Year <account:model-account.fiscalyear>`.
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.. _model-account.invoice.payment_term:
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Payment Term
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============
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The *Payment Term* stores the method that is used to calculate an
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`Invoice's <model-account.invoice>` payment due dates.
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An invoice may be due for payment in full on a particular day, or may become
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due for payment over time in parts.
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To allow for this each payment term is made up of one or more lines.
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Each line defines an amount that should be paid, and when that payment is
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expected.
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The amounts can be defined as either fixed amounts, percentages, or a
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remainder.
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.. seealso::
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Payment terms are create and managed from the main menu item:
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|Financial --> Configuration --> Payment Terms --> Payment Terms|__
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.. |Financial --> Configuration --> Payment Terms --> Payment Terms| replace:: :menuselection:`Financial --> Configuration --> Payment Terms --> Payment Terms`
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__ https://demo.tryton.org/model/account.invoice.payment_term
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Wizards
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-------
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.. _wizard-account.invoice.payment_term.test:
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Test Payment Term
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^^^^^^^^^^^^^^^^^
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The *Test Payment Term* wizard shows how a specific invoice amount is
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broken down for a particular
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`Payment Term <model-account.invoice.payment_term>`.
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It allows a date and an amount to be entered and then calculates the due dates
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and amounts for each payment that will be required for that payment term.
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.. seealso::
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Payment terms can be tested out by opening the main menu item:
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:menuselection:`Financial --> Configuration --> Payment Terms --> Test Payment Term`
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