{"id":3329,"date":"2026-03-02T10:21:11","date_gmt":"2026-03-02T07:21:11","guid":{"rendered":"https:\/\/workon.com.tr\/en\/?p=3329"},"modified":"2026-09-19T18:29:55","modified_gmt":"2026-09-19T15:29:55","slug":"company-seal-requirement-in-turkey","status":"publish","type":"post","link":"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/","title":{"rendered":"Company Seal Requirement in Turkey: 2026 Ka\u015fe Guide"},"content":{"rendered":"<p><strong>Quick answer:<\/strong> A Turkish company stamp (<strong>ka\u015fe<\/strong>) is widely used in day-to-day business, but it should not be described as a universal legal condition for the validity of every company contract, invoice or official act. The legally important question is usually <strong>who has authority to represent the company and whether the document has been executed in the required form<\/strong>.<\/p>\n<p>This guide explains the <strong>company seal \/ ka\u015fe requirement<\/strong>: when the stamp is a practical business tool, when signature\/representation authority matters more, and what foreign founders should prepare after registration.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Is_a_Company_Seal_Legally_Mandatory_in_Turkey\" >Is a Company Seal Legally Mandatory in Turkey?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Why_Companies_Still_Use_a_Kase\" >Why Companies Still Use a Ka\u015fe<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#What_Information_Should_a_Company_Stamp_Contain\" >What Information Should a Company Stamp Contain?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Company_Stamp_vs_Signature_Circular\" >Company Stamp vs Signature Circular<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Do_You_Need_the_Stamp_to_Prepare_a_Signature_Circular\" >Do You Need the Stamp to Prepare a Signature Circular?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Does_Every_Invoice_Need_a_Company_Seal\" >Does Every Invoice Need a Company Seal?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Does_Every_Bank_Require_a_Company_Seal\" >Does Every Bank Require a Company Seal?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#How_to_Order_a_Kase_After_Registration\" >How to Order a Ka\u015fe After Registration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#What_Happens_if_the_Company_Name_or_Details_Change\" >What Happens if the Company Name or Details Change?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#What_if_the_Stamp_Is_Lost\" >What if the Stamp Is Lost?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Branches_and_Multiple_Offices\" >Branches and Multiple Offices<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Company_Seal_vs_E-Signature_KEP_and_Financial_Seal\" >Company Seal vs E-Signature, KEP and Financial Seal<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Common_Company_Stamp_Mistakes\" >Common Company Stamp Mistakes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#How_Workon_Fits_Into_the_Post-Registration_Workflow\" >How Workon Fits Into the Post-Registration Workflow<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Official_Reference_Points\" >Official Reference Points<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/workon.com.tr\/en\/company-seal-requirement-in-turkey\/#Frequently_Asked_Questions\" >Frequently Asked Questions<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Is_a_Company_Seal_Legally_Mandatory_in_Turkey\"><\/span>Is a Company Seal Legally Mandatory in Turkey?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Do not use the blanket statement \u201ca Turkish company cannot operate without a seal.\u201d Turkish company law focuses on the company\u2019s registered trade name, representatives and signature authority. A rubber company stamp can be requested as a practical document-identification tool, but it is not a substitute for valid representation and it does not automatically make an unauthorised signature binding.<\/p>\n<blockquote><p><strong>Key rule:<\/strong> A stamp identifies the company on the document; registered representation rules determine who can bind the company.<\/p><\/blockquote>\n<p>The Turkish Commercial Code frames company execution around the <strong>trade name and the authorised person\u2019s signature<\/strong>, not around a rubber stamp. The Ministry of Trade also describes the mandatory signature declaration for company representatives as the representative\u2019s signature placed under the company trade name and filed through the Trade Registry procedure. A ka\u015fe can help reproduce company data, but it is not the legal source of representation authority.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Companies_Still_Use_a_Kase\"><\/span>Why Companies Still Use a Ka\u015fe<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Even where the law does not make the stamp the decisive validity element, Turkish businesses commonly use a ka\u015fe because it is a fast way to place recurring company information on documents.<\/p>\n<p>Typical practical uses include:<\/p>\n<ul>\n<li>placing the registered company title and tax details on internal or commercial paperwork;<\/li>\n<li>supplier\/customer forms;<\/li>\n<li>bank or administrative forms where the institution\u2019s own procedure asks for a stamp;<\/li>\n<li>receipts, delivery forms and other routine documents;<\/li>\n<li>helping staff distinguish which company\/entity is signing a document.<\/li>\n<\/ul>\n<p>An institution can ask for a stamp as part of its operational procedure. That should not be turned into a general legal statement that every Turkish contract or invoice is invalid without one.<\/p>\n<div id=\"attachment_3336\" style=\"width: 2058px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3336\" class=\"wp-image-3336 size-full\" src=\"https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/company-seal-requirement-in-turkey-company-seal.webp\" alt=\"Turkish company stamp ka\u015fe used on business paperwork\" width=\"2048\" height=\"1152\" srcset=\"https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/company-seal-requirement-in-turkey-company-seal.webp 2048w, https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/company-seal-requirement-in-turkey-company-seal-300x169.webp 300w, https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/company-seal-requirement-in-turkey-company-seal-1024x576.webp 1024w, https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/company-seal-requirement-in-turkey-company-seal-768x432.webp 768w, https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2026\/03\/company-seal-requirement-in-turkey-company-seal-1536x864.webp 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><p id=\"caption-attachment-3336\" class=\"wp-caption-text\"><em>A ka\u015fe is a common operational tool, but representation authority remains the legal control point.<\/em><\/p><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Information_Should_a_Company_Stamp_Contain\"><\/span>What Information Should a Company Stamp Contain?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There is no responsible reason to invent a universal statutory stamp template. In practice, companies commonly include enough data to identify the legal entity, such as:<\/p>\n<ul>\n<li>full registered company title;<\/li>\n<li>tax office and tax identification number;<\/li>\n<li>Trade Registry \/ MERS\u0130S information where useful;<\/li>\n<li>registered address or contact information where operationally helpful.<\/li>\n<\/ul>\n<p>The most important practical control is accuracy. If the company title, tax number or other data have changed, stop using an outdated stamp and prepare a corrected one.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Company_Stamp_vs_Signature_Circular\"><\/span>Company Stamp vs Signature Circular<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>Item<\/th>\n<th>What it shows<\/th>\n<th>What it does not prove by itself<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Company stamp \/ ka\u015fe<\/td>\n<td>Company-identification information printed on the document<\/td>\n<td>That the person signing has authority<\/td>\n<\/tr>\n<tr>\n<td>Signature circular \/ representation record<\/td>\n<td>How registered representatives are authorised to sign for the company<\/td>\n<td>That every document type has been executed in the correct special form<\/td>\n<\/tr>\n<tr>\n<td>Handwritten or electronic signature<\/td>\n<td>The act of the authorised signer<\/td>\n<td>Authority if the person is not actually authorised<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>If the registered representation structure requires two authorised people to sign jointly, adding a company stamp to one person\u2019s signature does not convert that into valid joint representation.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Do_You_Need_the_Stamp_to_Prepare_a_Signature_Circular\"><\/span>Do You Need the Stamp to Prepare a Signature Circular?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Avoid a universal sequence such as \u201cfirst make the stamp, then the notary cannot issue the signature circular without it.\u201d The notarial\/signature procedure should be checked for the current company record and transaction.<\/p>\n<p>The key inputs are the registered company information, representative identity and the representation authority shown in the Trade Registry\/MERS\u0130S record. A company may still choose to have the ka\u015fe ready because notaries, banks or other institutions can ask for it as part of their practical documentation process.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Does_Every_Invoice_Need_a_Company_Seal\"><\/span>Does Every Invoice Need a Company Seal?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>No blanket rule should say that every Turkish invoice is invalid unless it bears a rubber company stamp. For a paper invoice, the Tax Procedure Law contains a separate <strong>signature requirement for the business owner or a person authorised to sign on the owner\u2019s behalf<\/strong>; that should not be confused with a mandatory rubber ka\u015fe. Electronic invoices and e-Ar\u015fiv documents follow their applicable electronic-document signing\/authentication rules instead of a universal physical-stamp rule.<\/p>\n<p>For current invoicing rules, use:<\/p>\n<ul>\n<li><span style=\"text-decoration: underline; color:#000080;\"><strong><a href=\"https:\/\/workon.com.tr\/en\/e-invoice-registration-turkey\/\">E-Invoice Registration in Turkey<\/a><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline; color:#000080;\"><strong><a href=\"https:\/\/workon.com.tr\/en\/e-archive-invoice-turkey\/\">E-Archive Invoice Turkey<\/a><\/strong><\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Does_Every_Bank_Require_a_Company_Seal\"><\/span>Does Every Bank Require a Company Seal?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Bank procedures vary. A bank may ask for the ka\u015fe on its forms, but corporate-account opening is controlled primarily by the bank\u2019s KYC\/AML review, registered representatives, signature authority and bank-specific documentation.<\/p>\n<p>Do not promise that obtaining a stamp will make a bank account usable or approved.<\/p>\n<p>See <span style=\"text-decoration: underline; color:#000080;\"><strong><a href=\"https:\/\/workon.com.tr\/en\/how-to-open-a-business-bank-account-in-turkey\/\">How to Open a Business Bank Account in Turkey<\/a><\/strong><\/span>.<\/p>\n<div id=\"attachment_1964\" style=\"width: 1882px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/workon.com.tr\/en\/company-registration\/\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1964\" class=\"wp-image-1964 size-full\" src=\"https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2025\/09\/workon-company-formation-banner.webp\" alt=\"Workon company registration and post-registration document coordination in Turkey\" width=\"1872\" height=\"480\" srcset=\"https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2025\/09\/workon-company-formation-banner.webp 1872w, https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2025\/09\/workon-company-formation-banner-300x77.webp 300w, https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2025\/09\/workon-company-formation-banner-1024x263.webp 1024w, https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2025\/09\/workon-company-formation-banner-768x197.webp 768w, https:\/\/workon.com.tr\/en\/wp-content\/uploads\/sites\/3\/2025\/09\/workon-company-formation-banner-1536x394.webp 1536w\" sizes=\"auto, (max-width: 1872px) 100vw, 1872px\" \/><\/a><p id=\"caption-attachment-1964\" class=\"wp-caption-text\"><em>Workon coordinates company registration and connected post-registration document workflows according to the agreed scope.<\/em><\/p><\/div>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Order_a_Kase_After_Registration\"><\/span>How to Order a Ka\u015fe After Registration<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Once the company\u2019s registered title and tax\/company identifiers are confirmed, ordering a rubber stamp is normally a simple commercial task through a stationery\/stamp provider.<\/p>\n<p>A sensible sequence is:<\/p>\n<ol>\n<li>Confirm the company has been legally registered.<\/li>\n<li>Copy the legal title and identifiers from the current official records.<\/li>\n<li>Decide which practical data should appear on the stamp.<\/li>\n<li>Proofread every line before production.<\/li>\n<li>Keep the stamp controlled so it is not used on documents without the authorised signer\u2019s approval.<\/li>\n<\/ol>\n<p>Do not rely on old blog prices such as \u201cTRY 100\u2013250.\u201d Stamp pricing is a retail market cost and should be checked when ordered rather than presented as a permanent statutory fee.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Happens_if_the_Company_Name_or_Details_Change\"><\/span>What Happens if the Company Name or Details Change?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>If the registered company title, tax details or other information printed on the ka\u015fe changes, replace the stamp so it does not place outdated information on new documents.<\/p>\n<p>A name change or manager\/representation change is primarily a <strong>Trade Registry\/MERS\u0130S corporate-change process<\/strong>. Whether another notarial signature document is required depends on the new representation record and transaction; do not assume the rubber stamp itself controls the legal effect of the change.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_if_the_Stamp_Is_Lost\"><\/span>What if the Stamp Is Lost?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A lost stamp should be treated as an operational-control issue. Replace it, inform relevant staff, and monitor for unauthorised use where the circumstances create risk.<\/p>\n<p>Losing a rubber stamp does not automatically change the registered representatives or representation authority of the company. If there is suspicion of misuse, seek case-specific legal advice and notify institutions where appropriate.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Branches_and_Multiple_Offices\"><\/span>Branches and Multiple Offices<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A company may use separate operational stamps for branches, departments or offices for convenience, but that does not create or change the legal representation structure.<\/p>\n<p>If a branch is separately registered, ensure any branch stamp accurately reflects the branch\/company information used for that operation. For second-location questions, use <span style=\"text-decoration: underline; color:#000080;\"><strong><a href=\"https:\/\/workon.com.tr\/en\/open-a-second-office-in-turkey\/\">How to Open a Second Office in Turkey<\/a><\/strong><\/span>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Company_Seal_vs_E-Signature_KEP_and_Financial_Seal\"><\/span>Company Seal vs E-Signature, KEP and Financial Seal<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>These are different tools and should not be described as digital versions of the same rubber stamp.<\/p>\n<table>\n<thead>\n<tr>\n<th>Tool<\/th>\n<th>Main function<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ka\u015fe<\/td>\n<td>Physical company-information stamp used operationally<\/td>\n<\/tr>\n<tr>\n<td>Secure electronic signature (e-imza)<\/td>\n<td>Electronic signature of a natural person under Law No. 5070; company-binding authority must still come from the representation record<\/td>\n<\/tr>\n<tr>\n<td>KEP<\/td>\n<td>Registered electronic-mail infrastructure providing legally significant transmission evidence<\/td>\n<\/tr>\n<tr>\n<td>Financial seal (mali m\u00fch\u00fcr)<\/td>\n<td>Electronic certificate\/tool used in specified tax\/e-document processes for entities<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Dedicated guides:<\/p>\n<ul>\n<li><span style=\"text-decoration: underline; color:#000080;\"><strong><a href=\"https:\/\/workon.com.tr\/en\/e-signature-for-companies-in-turkey\/\">E-Signature for Companies in Turkey<\/a><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline; color:#000080;\"><strong><a href=\"https:\/\/workon.com.tr\/en\/kep-address-in-turkey\/\">KEP Address in Turkey<\/a><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline; color:#000080;\"><strong><a href=\"https:\/\/workon.com.tr\/en\/financial-seal-mali-muhur-turkey\/\">Financial Seal in Turkey<\/a><\/strong><\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Common_Company_Stamp_Mistakes\"><\/span>Common Company Stamp Mistakes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>Mistake<\/th>\n<th>Why it is wrong<\/th>\n<th>Better approach<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Calling the ka\u015fe a state-issued official seal<\/td>\n<td>It is normally a commercially produced company stamp<\/td>\n<td>Describe it as an operational stamp<\/td>\n<\/tr>\n<tr>\n<td>Saying a stamp makes every contract valid<\/td>\n<td>Authority and required legal form still matter<\/td>\n<td>Check representation\/signature rules<\/td>\n<\/tr>\n<tr>\n<td>Saying every invoice needs a physical stamp<\/td>\n<td>Ignores electronic invoicing rules<\/td>\n<td>Follow current G\u0130B invoice requirements<\/td>\n<\/tr>\n<tr>\n<td>Using outdated company information<\/td>\n<td>Creates confusion and rejected paperwork<\/td>\n<td>Replace the stamp after registered-data changes<\/td>\n<\/tr>\n<tr>\n<td>Assuming the stamp replaces e-signature\/KEP\/mali m\u00fch\u00fcr<\/td>\n<td>They serve different legal\/technical functions<\/td>\n<td>Use the correct tool for each workflow<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"How_Workon_Fits_Into_the_Post-Registration_Workflow\"><\/span>How Workon Fits Into the Post-Registration Workflow<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Workon coordinates company setup and post-registration operational workflows for foreign founders and overseas companies entering T\u00fcrkiye. Depending on the agreed scope, this can include company-document preparation coordination, registered representation\/signature steps, KEP\/e-signature\/financial-seal sequencing and bank\/tax onboarding coordination.<\/p>\n<p>Regulated legal, tax, accounting and notarial services remain with the appropriately authorised professionals and institutions.<\/p>\n<p><span style=\"text-decoration: underline; color:#000080;\"><strong><a href=\"https:\/\/workon.com.tr\/en\/company-registration\/\">Review Workon\u2019s company registration and operational coordination service<\/a><\/strong><\/span>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Official_Reference_Points\"><\/span>Official Reference Points<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><a href=\"https:\/\/ticaret.gov.tr\/data\/5d419b8013b87639ac9e00cd\/17d7c7108dae78d14a3f220b519f98f6.pdf\" target=\"_blank\" rel=\"noopener\">Turkish Commercial Code<\/a><\/li>\n<li><a href=\"https:\/\/ticaret.gov.tr\/ic-ticaret\/ticaret-sicili\/merkezi-sicil-kayit-sistemi-mersis\" target=\"_blank\" rel=\"noopener\">Ministry of Trade: MERS\u0130S<\/a><\/li>\n<li><a href=\"https:\/\/www.efatura.gov.tr\/\" target=\"_blank\" rel=\"noopener\">Revenue Administration: e-Invoice\/e-Document systems<\/a><\/li>\n<li><a href=\"https:\/\/gib.gov.tr\/mevzuat\/kanun\/436\/ozelge\/25727\" target=\"_blank\" rel=\"noopener\">Revenue Administration: paper-invoice form and signature guidance under the Tax Procedure Law<\/a><\/li>\n<\/ul>\n<p><em>Last reviewed: 17 September 2026. Institution-specific form requirements can differ; confirm the current procedure for the exact bank, notary or authority.<\/em><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>[clicksus-faqpage]<\/p>\n<p><small><strong>Disclaimer:<\/strong> This guide provides general information, not legal, tax, banking or document-execution advice. The legal effect of a document depends on the authorised signer, registered representation, applicable form and transaction facts; an institution may separately request a ka\u015fe. Verify the current official record and obtain appropriately qualified advice before executing or relying on a material company document.<\/small><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quick answer: A Turkish company stamp (ka\u015fe) is widely used in day-to-day business, but it [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3335,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","clicksus-faqpage":{"Sorular":[{"Soru":"Is a company stamp legally mandatory for every document in Turkey?","Cevap":"No. A rubber company stamp is not a universal condition for document validity. Turkish company law focuses on the company trade name, the authorised signer, registered representation rules and any form required for the transaction. A bank, notary or other recipient can still ask for a ka\u015fe as part of its own operational procedure."},{"Soru":"Does every Turkish invoice need a company ka\u015fe?","Cevap":"No universal physical-ka\u015fe rule applies to every invoice. For a paper invoice, the Tax Procedure Law has a separate signature requirement for the business owner or a person authorised to sign on the owner\u2019s behalf; that is different from requiring a rubber stamp. e-Fatura and e-Ar\u015fiv follow the applicable electronic-document rules instead."},{"Soru":"What information should appear on a Turkish company stamp?","Cevap":"There is no one universal statutory ka\u015fe template. Use the current registered company title and accurate identifiers. Companies commonly include tax-office and tax-number information, with registry, address or contact details where operationally useful, and should replace the stamp after relevant registered-data changes."},{"Soru":"How long does it take to order a ka\u015fe and what does it cost?","Cevap":"Ask a stamp supplier for its current production time and quote after confirming the company\u2019s registered details. This is a commercial purchase; an old retail price range or a universal production-time promise should not be treated as a statutory fee or guaranteed service."},{"Soru":"Does a company stamp prove that the signer can represent the company?","Cevap":"No. The stamp identifies the company on the document. Representation authority comes from the company\u2019s current registered representation structure and the applicable signature\/form requirements. A ka\u015fe cannot cure an unauthorised signature or replace a required second signature where joint representation applies."},{"Soru":"Is ordering a ka\u015fe the same as completing the company\u2019s signature or representation formalities?","Cevap":"No. Ordering a rubber stamp is a commercial task. The mandatory signature declaration for a company representative concerns the authorised person\u2019s signature under the company trade name in the Trade Registry process, while a bank, notary or other institution may separately request current representation or signature evidence for its own transaction. A ka\u015fe does not replace those records."}],"Ayarlar":{"mikridata_aktif":true}},"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_yoast_wpseo_focuskw":"","rank_math_title":"Company Seal Requirement in Turkey: 2026 Ka\u015fe Guide","rank_math_description":"Is a company stamp legally required in Turkey? Learn what a ka\u015fe does, what it cannot prove, when banks may request it and how it differs from e-signature.","rank_math_focus_keyword":"company seal requirement in Turkey"},"categories":[2],"tags":[],"class_list":["post-3329","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/posts\/3329","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/comments?post=3329"}],"version-history":[{"count":5,"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/posts\/3329\/revisions"}],"predecessor-version":[{"id":6355,"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/posts\/3329\/revisions\/6355"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/media\/3335"}],"wp:attachment":[{"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/media?parent=3329"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/categories?post=3329"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/workon.com.tr\/en\/wp-json\/wp\/v2\/tags?post=3329"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}