Industry and Regulation
What invoicing, e-document and tax rules change on the business side.
October 1, 2026When an Exchange Difference Invoice Is NeededIf a foreign currency sale is collected at a different rate, the difference is subject to VAT in Türkiye and has to be invoiced. A period end revaluation needs no invoice.2 min readExplore
September 15, 2026When Does the Eight Day Period on a Commercial Invoice StartDoes the objection period run from the day the invoice was issued, or from the day it reached you? The difference matters in the records.1 min readExplore
September 9, 2026Does Being Registered for e-Invoice Cover e-DispatchThey are two separate registrations. Assuming that a buyer who can receive e-invoices can also receive e-dispatch notes is what sends the document back.1 min readExplore
September 5, 2026What Is the Difference Between e-Invoice and e-ArchiveThe same sales invoice goes into the e-document system in one of two ways, depending on the buyer’s tax registration status. Here is what that difference means for a business.1 min readExplore
August 31, 2026How Much Does the Customer Owe on a Withholding InvoiceOn a withholding invoice, part of the VAT is declared directly by the buyer. That is why the customer’s debt is not the grand total of the invoice.1 min readExplore
August 24, 2026There Should Be No Gap in Invoice NumbersInvoices follow one another by sequence number. For e-documents the number has a fixed structure and the same number cannot be used twice. What happens to the number of a deleted or cancelled invoice?1 min readExplore
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