> ## Documentation Index
> Fetch the complete documentation index at: https://docs-pos.solya.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Take payment

> Settle a basket over one or more tenders, apply discounts, and finalize the sale against the live drawer.

Checkout turns a basket into a finalized sale: it settles the amount due over one or
more tenders, applies any declared discounts, and records the ticket
(`POST /v1/checkout/finalize`).

## Server-side re-pricing

The backend re-prices the cart on finalize. It does not trust the amounts the till
sends — it recomputes them against its own price authority and rejects a mis-priced
or forged cart (a `422` business-rule failure). This is the line that keeps a
tampered basket from being rung up.

## Tenders and settlement

A sale settles over one or more tenders. The tender engine models the methods and
tracks what remains due until the sale is fully settled.

* **Cash rounding** — cash settlement applies the legal rounding rule, injected from
  the backend configuration, so the tolerance is consistent.
* **Foreign currency** — a foreign-currency tender discloses the foreign amount and
  the rate used, shown on the sold recap.

<Note>
  Card / PSP capture is deferred for the pilot: tender methods are modelled and settle
  in the engine, but there is no live payment-terminal integration yet — the terminal
  port is a mock.
</Note>

## Discounts and manager override

Declared discounts are threaded onto the finalize request, and the backend re-derives
them. A discount that needs authority is gated by a manager elevation token, consumed
server-side on finalize.

## After the sale

When the sale is finalized, the till shows a recap of the real finalized ticket (the
sold panel). From there you can move to the [receipt](/en/caisse/tickets-recus) to
print or reprint. The sale also books cash into the open register drawer and lands in
the [day-book](/en/caisse/journee-caisse) and the sales read model.

## Related

* [Sell](/en/caisse/vente) — build the basket first.
* [Daily cash session](/en/caisse/journee-caisse) — the drawer the sale credits.
* [Returns & exchanges](/en/caisse/retours-echanges) — reverse a charge.