Taxation Istanbul
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VAT and Tax Returns

Your VAT, withholding, advance tax and annual returns follow the same route every period. Below are the steps of that route and what we check at each one.

How a period runs

  1. Collecting the documents. Your purchase and sales documents reach the office by e-mail, messaging or an upload link. Your e-invoice and e-archive records are pulled directly from the portals; paper documents are scanned into the same file.
  2. Recording and classification. Every incoming document is recorded in the document management system we built ourselves. Our analysis engine, which we call KARTAL, reads the type of the document and the period it belongs to and files it under your record. A document that lands in the wrong period, or arrives twice, is flagged at this stage.
  3. Missing document check. Before the period closes, your file is scanned for missing documents. If something we expect has not arrived, you are informed while the period is still open.
  4. Reconciliation. Before the return is prepared, your records are checked internally and against the previous period.
  5. Preparation and your approval. The return is prepared; the amount payable and its basis are sent to you. It is filed after your approval.
  6. Assessment and payment reminder. Your assessment slip is delivered to you and the payment deadline is reminded.
  7. Archive. Your return, assessment slip and supporting documents are kept in the archive for the full statutory retention period.

What we check every period

  • Consistency of carried-forward VAT with the previous period
  • Purchases and sales subject to withholding declared with the correct rate and code
  • Export invoices recorded in the period of the actual exit date on the customs declaration
  • The line totals of an invoice matching the VAT amount stated on it
  • The same document not being recorded twice
  • Your card terminal collections compared against the sales of the period
  • Your virtual POS collections compared against your e-archive and e-invoice records
  • The declared amount compared against the assessment slip

What happens on your side

Once you have sent your documents, nothing further is expected from you during the period. If a document is missing we call or write; when the return is ready we send you the amount and the payment deadline. At the end of the period your return, your assessment and the supporting documents are all in your archive.

Returns covered

VAT 1 and VAT 2, the withholding and premium service declaration, advance tax, annual income and corporate tax, and stamp duty returns.