The second reduced VAT rate can be entered via the REST API just like the other rates — on the line item using the rate type, or in the header of a document without line items using dedicated summary fields.
On the document line item
Just specify the rate type — Flexi will look up the percentage as of the document date:
<typSzbDphK>typSzbDph.dphSniz2</typSzbDphK>
In the document header
Totals for the second reduced rate have their own dedicated fields:
Field | Meaning |
| VAT base — 2nd reduced |
| VAT — 2nd reduced |
| Total including VAT — 2nd reduced |
If the document has line items, do not send these fields — they will be populated from the line items. They are only used for documents without line items, together with <bezPolozek>true</bezPolozek>:
<winstrom version="1.0">
<faktura-vydana>
<typDokl>code:FAKTURA</typDokl>
<bezPolozek>true</bezPolozek>
<sumZklSniz2>100.0</sumZklSniz2>
<sumDphSniz2>10.0</sumDphSniz2>
</faktura-vydana>
</winstrom>
ℹ️ The full list of summary fields along with their descriptions is available at /c/{firma}/faktura-vydana/properties.xml. Similar fields also exist for the base and reduced rates (sumZklZakl, sumZklSniz) and for exempt supplies (sumOsv).