Hello Ludwig,
Thanks for the above, but as per Indian tax law.
Organization need to account withholding tax at the time of vendor invoice booking.
Accounting treatment is as under
Expenses Dr 100
To Vendor Cr 100
Vendor Dr. 10 (assuming withholding tax 10%)
To Withholding Tax payable Cr 10
In case of advance payment to vendor organization need to deduct withholding tax.
On purchase invoice form carries TDS (withholding tax) details from purchase order, some time accounting team need to update correct TDS group if vendor is providing multiple services.
Let me know if you need more information on this.
Thanks