Amending the Articles of Association of a Turkish Joint Stock Company: Who Decides, Procedure, Quorums, the Privileged Shareholders' Special Assembly, Registration and Challenges (TTK 408, 421, 452-455)
Who can change the articles of association of a Turkish joint stock company, and with what majority? The general assembly. Under Article 408(2)(a) of the Turkish Commercial Code (TTK, Law No. 6102), the amendment of the articles of association (esas sözleşmenin değiştirilmesi) is a duty and power of the general assembly that cannot be transferred; in a company that is not publicly held, the articles may, in the registered capital system, give the board the authority to increase the capital up to the ceiling (TTK 460(1)). Unless the law or the articles provide otherwise, resolutions amending the articles are adopted at a general assembly where at least half of the capital is represented, by a majority of the votes present (TTK 421(1)). Some changes need unanimity of the whole capital (TTK 421(2)) or the positive votes of seventy-five per cent of the capital (TTK 421(3)). If the resolution would infringe the rights of privileged shareholders, it cannot be implemented until their special assembly approves it (TTK 454(1)). The amendment is registered with the trade registry, and before registration it has no effect against third parties (TTK 455). This guide is written for foreign investors and shareholders in a Turkish joint stock company (anonim şirket) who are asked to vote on, or who want to propose or resist, a change to the articles. It is based on the statutory text as read on 15 November 2026.
1. Who Decides an Amendment to the Articles of Association? (TTK 408, 452 and 479)
The direct answer. Under TTK 408(2)(a), the amendment of the articles of association is one of the general assembly's duties and powers that cannot be transferred. The board of directors prepares and proposes; the shareholders, meeting as the general assembly (genel kurul), decide. Under TTK 408(1), the general assembly takes decisions in the cases expressly provided for in the law and in the articles of association.
How far the power reaches. Under TTK 452, unless the articles of association provide otherwise, the general assembly may amend all provisions of the articles, complying with the conditions laid down in the law; acquired and inalienable rights (müktesep ve vazgeçilmez haklar) are reserved. The power is therefore subject to a contrary provision in the articles, and acquired and inalienable rights stay reserved.
Single-shareholder companies. Under TTK 408(3), in a joint stock company with a single shareholder, that shareholder has all the powers of the general assembly, and the resolutions the single shareholder adopts as general assembly must be in writing to become valid. A foreign parent holding one hundred per cent of a Turkish subsidiary therefore amends the articles by a written general assembly resolution of the parent as sole shareholder.
Votes in proportion to nominal value. Under TTK 434(1), shareholders exercise their voting rights at the general assembly in proportion to the total nominal value (itibarî değer) of their shares; TTK 1527(5) is reserved. Under TTK 479(3)(a), a voting privilege cannot be used in resolutions amending the articles of association. For voting and other privileges in detail, see our guide on privileged shares in a Turkish joint stock company.
Where the board fits. The board resolves on the draft amendment (TTK 453), may call the general assembly (TTK 410(1)) and, as the caller, sets the agenda (TTK 413(1)); for its composition and removal, see our guide on the board of directors.
2. How Does the Procedure Work? Board Draft, Ministry Permission and Announcement (TTK 333, 411, 413, 414 and 453)
The direct answer. Under TTK 453, when the general assembly is called to amend the articles of association, the draft amendment must be announced together with the existing provisions to be amended, in the manner stated in the first sentence of TTK 414(1). In companies for which permission of the Ministry is required under TTK 333, the draft announced is the one for which permission has been obtained; in other companies, it is the draft resolved on by the board of directors. The quorums in TTK 421 apply to the resolution (TTK 453, second sentence).
Which companies need Ministry permission. Under TTK 333, joint stock companies whose fields of activity are determined and announced by a communiqué of the Ministry (named in the statutory text Gümrük ve Ticaret Bakanlığı) are incorporated with the Ministry's permission, and their amendments to the articles also require the same Ministry's permission. The Ministry's review may be made only as to whether there is a breach of the mandatory provisions of the law. Apart from this, whatever its legal position, nature and business purpose, the incorporation of a joint stock company and amendments to its articles cannot be made subject to the permission of any authority (TTK 333).
The communiqué in force. The list is in the Communiqué on Raising the Capital of Joint Stock and Limited Companies to the New Minimum Amounts and on Determining the Joint Stock Companies Whose Incorporation and Amendments to the Articles of Association Are Subject to Permission (Official Gazette, 15 November 2012). Article 5(1) lists, among others, banks, financial leasing, factoring, consumer finance and card services, asset management and insurance companies, holding companies established as joint stock companies, independent audit companies, and free zone founder and operator companies. Check the current text for your sector before you plan the meeting.
What the permission file contains. Under Article 6(2) of the communiqué, for an amendment to be discussed at the general assembly, the company applies with, among other documents, a notarised copy of the board resolution on the amendment, the new text of the amended article or articles, and, where the amendment requires the opinion or permission of another public authority, that opinion or permission letter; capital increases and reductions require further reports. Under Article 6(3), the permission must be obtained before the date of the general assembly, and without the permission the amendment cannot be registered with the trade registry.
Announcement and call. Under the first sentence of TTK 414(1), the general assembly is called by an announcement made in the manner shown in the articles, on the company's website and in the Turkish Trade Registry Gazette (Türkiye Ticaret Sicili Gazetesi). The call is made at least two weeks before the meeting, excluding the days of announcement and meeting (second sentence).
Agenda. Under TTK 413(1), the agenda is set by whoever calls the general assembly. Under TTK 413(2), matters not on the agenda cannot be discussed or resolved at the general assembly; statutory exceptions are reserved.
Minority request. Under TTK 411(1), shareholders holding at least one tenth of the capital, or one twentieth in publicly held companies, may ask the board in writing, stating the reasons and the agenda, to call the general assembly or, if it is to meet anyway, to put on the agenda the matters they want resolved. Under TTK 411(3), the call and the request to add an agenda item are made through a notary.
Ministry representative. Under TTK 407(3), a representative of the Ministry takes part in the general assembly meetings of the companies determined under TTK 333. Under TTK 422(1), the minutes are signed by the meeting chairmanship (toplantı başkanlığı) and the Ministry representative; otherwise they are invalid.
3. What Quorum and Majority Does the General Assembly Need? (TTK 421, 418 and 473)
The direct answer. Under TTK 421(1), unless the law or the articles of association provide otherwise, resolutions amending the articles are adopted at a general assembly where at least half of the company's capital is represented, by a majority of the votes present at the meeting. If the meeting quorum is not reached at the first meeting, a second meeting may be held within one month at the latest, and the meeting quorum for the second meeting is the representation of at least one third of the company's capital. Articles provisions that lower the quorums in TTK 421(1) or provide for a relative majority (nispî çoğunluk) are invalid.
Unanimity. Under TTK 421(2), the following amendments are adopted by unanimity of the holders or representatives of the shares forming the whole capital: (a) resolutions imposing obligations and secondary obligations (yükümlülük ve ikincil yükümlülük) to cover balance-sheet losses; and (b) resolutions on moving the company's head office abroad.
Seventy-five per cent of the capital. Under TTK 421(3), the following amendments are adopted by the positive votes of the holders or representatives of shares forming at least seventy-five per cent of the capital: (a) a complete change of the company's business purpose (işletme konusunun tamamen değiştirilmesi); (b) the creation of privileged shares; and (c) the restriction of the transfer of registered shares. The percentage refers to the capital, not to the votes present. Under TTK 421(4), if these quorums in TTK 421(2) and (3) are not reached at the first meeting, the same quorum is required at the following meetings.
Listed companies. Under TTK 421(5), in companies whose shares are traded on securities exchanges, unless their articles provide otherwise, the meeting quorum in TTK 418 applies to general assembly meetings resolving on (a) articles amendments on capital increases and on raising the registered capital ceiling, and (b) mergers, demergers and conversions. Under TTK 418(1), except where this Code or the articles provide a heavier quorum, the general assembly meets with the presence of holders or representatives of shares covering at least one quarter of the capital; this quorum must be maintained throughout the meeting, and if it is not reached at the first meeting, no quorum is required for the second meeting.
Exit for dissenting holders of registered shares. Under TTK 421(6), holders of registered shares who voted against a general assembly resolution on a complete change of the business purpose or on the creation of privileged shares are not bound, for six months from the publication of that resolution in the Turkish Trade Registry Gazette, by restrictions on the transferability of the shares. For how such restrictions work, see our guide on share transfer restrictions.
| Type of amendment | Meeting quorum / majority | Extra approval or effect | Article |
|---|---|---|---|
| Ordinary amendment (no special rule) | At least half of the capital represented; majority of the votes present. Second meeting within one month at the latest: at least one third of the capital | Articles may not lower the quorums or provide for a relative majority | TTK 421(1) |
| Obligations and secondary obligations to cover balance-sheet losses | Unanimity of holders of the shares forming the whole capital | Same quorum at following meetings | TTK 421(2)(a), (4) |
| Moving the head office abroad | Unanimity of holders of the shares forming the whole capital | Same quorum at following meetings | TTK 421(2)(b), (4) |
| Complete change of the business purpose | Positive votes of holders of at least 75% of the capital | Dissenting holders of registered shares not bound by transfer restrictions for six months | TTK 421(3)(a), (6) |
| Creation of privileged shares | Positive votes of holders of at least 75% of the capital | Same six-month rule; special assembly if existing privileged rights are infringed | TTK 421(3)(b), (6); 454 |
| Restricting the transfer of registered shares | Positive votes of holders of at least 75% of the capital | Same quorum at following meetings | TTK 421(3)(c), (4) |
| Capital reduction | First sentence of TTK 421(3): 75% of the capital | Assets fully covering creditors' rights must be established first | TTK 473(2)-(3) |
| Listed company: capital increase or higher registered capital ceiling | Meeting quorum of TTK 418, unless the articles provide otherwise | None stated in TTK 421(5) | TTK 421(5)(a); 418 |
| Any amendment infringing privileged shareholders' rights | The quorum applicable to the amendment at the general assembly | Special assembly: meets with 60% of the capital represented by the privileged shares; decides by a majority of the shares represented | TTK 454(1), (3) |
Higher thresholds in the articles. The invalidity sanction in TTK 421(1) covers articles provisions that lower its quorums or provide for a relative majority; TTK 421(1) does not invalidate a provision setting a higher quorum.
4. When Must the Privileged Shareholders' Special Assembly Approve? (TTK 454)
The direct answer. Under TTK 454(1), if the general assembly's resolution amending the articles of association, its resolution authorising the board to increase capital, or the board's resolution increasing capital is of a nature that would infringe the rights of privileged shareholders (imtiyazlı pay sahipleri), that resolution cannot be implemented unless approved by a resolution adopted at a special meeting of those shareholders. The special meeting is the privileged shareholders' special assembly (imtiyazlı pay sahipleri özel kurulu).
What a privilege is. Under TTK 478(1), privileges can be granted to certain shares by the initial articles or by amending the articles. Under TTK 478(2), a privilege is a superior right granted to a share in rights such as dividend, liquidation share, pre-emption and voting rights, or a new shareholder right not provided for in the law. TTK 454 does not list which amendments infringe those rights.
Calling the special assembly. Under TTK 454(2), the board calls the special assembly at the latest within one month from the date on which the general assembly resolution is announced. Otherwise, each privileged shareholder may, within fifteen days starting from the last day of the board's call period, ask the commercial court of first instance at the company's head office to call that assembly.
Quorum and outcome. Under TTK 454(3), the special assembly meets with sixty per cent of the capital represented by the privileged shares (imtiyazlı payları temsil eden sermayenin yüzde altmışının çoğunluğuyla toplanır) and decides by a majority of the shares represented at the meeting. If it concludes that the rights of privileged shareholders are infringed, the decision is stated in reasoned minutes, which must be delivered to the board within ten days. Together with the minutes, the board receives a list bearing the signatures of those who voted against approving the general assembly resolution, at least in the number making up the quorum, and a common address for service for the action that may be brought under TTK 454(8). The minutes, with the information given with them, are registered and announced in the Turkish Trade Registry Gazette. If these conditions are not complied with, the special assembly resolution is deemed not to have been adopted.
When no separate meeting is needed. Under TTK 454(4), if the holders or representatives of the privileged shares voted in favour of the amendment at the general assembly in line with the meeting and decision quorum in TTK 454(3), no separate special meeting is held. Under TTK 454(5), if, despite the call, the special assembly cannot meet within the period, the general assembly resolution is deemed approved.
Court route. Under TTK 454(7), the board may, within one month from the date of the special assembly's refusal, bring an action at the commercial court of first instance at the head office for the annulment of that refusal and the registration of the general assembly resolution, on the ground that the resolution does not infringe the shareholders' rights. Under TTK 454(8), the annulment action is directed against those who voted against approving the general assembly resolution.
5. Registration, Announcement and Effect Against Third Parties (TTK 455, 422, 36 and 1524)
The direct answer. Under TTK 455, the general assembly's resolution amending the articles of association is registered by the board of directors with the trade registry of the place of the company's head office and branches; in addition, the matters subject to announcement are announced, and the registered and announced resolution is put on the company's website. The amending resolution has no effect against third parties before registration (Değiştirme kararı üçüncü kişilere karşı tescilden önce hüküm ifade etmez).
The minutes go to the registry. Under TTK 422(2), the board gives a notarised copy of the minutes to the trade registry office without delay and has the matters subject to registration and announcement registered and announced.
The general rule on registry entries. Under TTK 36(1), trade registry entries produce their legal consequences for third parties from the business day following the day on which the registration is announced in the Turkish Trade Registry Gazette, or, if the announcement is not published in full in the same issue, the day on which its last part is published. TTK 36(2) reserves special provisions under which a matter produces consequences for third parties immediately upon registration or time limits start to run immediately. Under TTK 36(3), third parties cannot be heard to claim that they did not know registry entries that have begun to produce consequences against them.
Website. Under TTK 1524(1), capital companies subject to audit under TTK 397(4) must open a website and dedicate a part of it to the announcements the company must make by law. Under TTK 1524(2), non-compliance with those obligations constitutes a ground for annulment of the relevant resolutions. Under TTK 1524(6), the website rules in the relevant articles of the Code and in TTK 1524 do not apply to capital companies not subject to audit.
6. Capital Increase and Capital Reduction as Special Amendments (TTK 456, 460 and 473)
The direct answer. The Code places capital increases and capital reductions in a separate part titled special amendments (Özel Değişiklikler), with their own rules (TTK 456-475).
Capital increase. Under TTK 456(2), in the basic capital system (esas sermaye sistemi) the general assembly decides on the increase under TTK 459; in the registered capital system the board decides under TTK 460. Where the amended form of the relevant provisions of the articles, for which permission has been obtained where required, is adopted at the general assembly with changes, that form must be approved by the Ministry. Under TTK 456(5), TTK 455 applies to the registration of the capital increase resolution, subject to the special provisions that follow it. For the board's authority up to the ceiling, see our guide on the registered capital system; for valuing assets contributed in a capital increase, see our guide on contributions in kind.
Registered capital. Under TTK 460(1), in a joint stock company that is not publicly held, the initial or amended articles may give the board the authority to increase the capital up to the registered capital ceiling set in the articles; this authority may be granted for at most five years.
Capital reduction. Under TTK 473(1), if a joint stock company reduces its capital without issuing new fully paid shares to replace the reduced part, the general assembly resolves on the appropriate amendment of the articles. Under TTK 473(2), the reduction cannot be resolved unless it has been established that the company has assets sufficient to cover its creditors' rights fully despite the reduction. Under TTK 473(3), the first sentence of TTK 421(3) applies to the resolution. For the full procedure, see our guide on capital reduction.
7. What Can a Shareholder Do Against an Unlawful Amendment Resolution? (TTK 445-450 and 202)
The direct answer. Under TTK 445, the persons listed in TTK 446 may bring an annulment action (iptal davası) against general assembly resolutions that are contrary to the law or the articles of association, and in particular to the principle of good faith, within three months from the date of the resolution, at the commercial court of first instance at the company's head office. TTK 448(2) calls this three-month period a period of forfeiture (hak düşüren süre). Resolutions of the kinds listed in TTK 447 are null (batıl).
Who may sue. Under TTK 446(1), the annulment action may be brought by: (a) shareholders who attended the meeting, voted against the resolution and had their dissent recorded in the minutes; (b) shareholders, whether or not they attended or voted against, who claim that the call was not made properly, that the agenda was not duly announced, that persons not authorised to attend the general assembly or their representatives attended and voted, or that they were wrongly refused attendance and voting, and that these irregularities were effective in the adoption of the resolution; (c) the board of directors; and (d) each board member, if implementing the resolution would make him personally liable.
Null resolutions. Under TTK 447(1), resolutions of the general assembly are null in particular where they (a) limit or remove the shareholder's rights to attend the general assembly, minimum vote and action rights, and the inalienable rights arising from the law; (b) limit the shareholder's rights to information, inspection and audit beyond the extent permitted by law; or (c) disrupt the basic structure of the joint stock company or breach the provisions on the protection of capital.
Within the proceedings. Under TTK 448(2), in an annulment action no hearing can start before the three-month period of forfeiture ends. Under TTK 449, where an annulment or nullity action is brought, the court may, after hearing the board members, order a stay of execution of the resolution. Under TTK 450, a court judgment annulling or declaring null a general assembly resolution has effect for all shareholders once final, and the board must have a copy registered with the trade registry without delay and put it on the website.
Group companies. Under TTK 202(2), in transactions carried out through the exercise of control that have no clearly understandable justified reason for the controlled company, such as material amendments to the articles of association, shareholders who voted against the general assembly resolution and had this recorded in the minutes may ask the court for compensation of their loss from the controlling enterprise, or the purchase of their shares. That action is time-barred (zamanaşımına uğrar) two years from the date of the general assembly resolution.
First steps. Attend or be represented, vote against, and have the dissent written into the minutes; this keeps the TTK 446(1)(a) route open. For the grounds, the parties and the procedure in detail, see our guide on annulment and nullity of general assembly resolutions; for information requests before or after the meeting, see our guide on shareholder information rights and the special auditor.
8. What Should a Foreign Shareholder Check Before the Vote? (TTK 333, 414, 421, 453-455)
The direct answer. Identify which category the change falls into, measure the quorum against the capital and not against the room, check whether Ministry permission and a special assembly are needed, and make sure your vote and any dissent are recorded in the minutes.
A checklist.
- Is the draft text announced? The draft must be announced with the existing provisions to be amended (TTK 453), in the manner shown in the articles, on the website and in the Turkish Trade Registry Gazette (TTK 414(1), first sentence).
- Is the item on the agenda? Matters not on the agenda cannot be resolved, statutory exceptions reserved (TTK 413(2)).
- Which category? Ordinary (TTK 421(1)), unanimity (TTK 421(2)), seventy-five per cent of the capital (TTK 421(3)), capital reduction (TTK 473(3)) or the listed-company rule (TTK 421(5)).
- Is the company on the permission list? If so, permission is obtained before the general assembly date, and without it the amendment cannot be registered (communiqué, Article 6(3)).
- Is a privileged class affected? If the resolution would infringe privileged shareholders' rights, it cannot be implemented without the special assembly (TTK 454(1)); a voting privilege cannot be used on the amendment itself (TTK 479(3)(a)).
- Does it add obligations for shareholders? Except for statutory exceptions, the articles cannot impose on a shareholder any debt other than paying the share price or a premium above nominal value (TTK 480(1)); where transfers require company approval, recurring non-monetary obligations may be imposed (TTK 480(4)); obligations to cover balance-sheet losses need unanimity (TTK 421(2)(a)).
- After the vote. Check registration with the trade registry of the head office and branches and the announcement (TTK 455); for a complete change of the business purpose or the creation of privileged shares, note the Gazette publication date for the six months in TTK 421(6).
- If you object. Mark the three months from the resolution date for an annulment action (TTK 445) and consider whether the resolution falls under TTK 447.
Frequently asked questions
Can the board of a Turkish joint stock company amend the articles of association?
No. Under TTK 408(2)(a), the amendment of the articles of association is a non-transferable duty and power of the general assembly. The board resolves on the draft (TTK 453) and may call the general assembly (TTK 410(1)); in a company that is not publicly held, the articles may, in the registered capital system, authorise the board to increase capital up to the ceiling (TTK 460(1)).
What majority is needed for an ordinary amendment?
Unless the law or the articles provide otherwise, at least half of the capital must be represented and the resolution is adopted by a majority of the votes present; at a second meeting held within one month at the latest, at least one third of the capital must be represented. Articles provisions lowering these quorums or providing for a relative majority are invalid (TTK 421(1)).
Which amendments need unanimity?
Under TTK 421(2), unanimity of the holders or representatives of the shares forming the whole capital is required for resolutions imposing obligations and secondary obligations to cover balance-sheet losses and for resolutions on moving the head office abroad. The same quorum is required at following meetings (TTK 421(4)).
Which amendments need seventy-five per cent?
Under TTK 421(3), a complete change of the business purpose, the creation of privileged shares and the restriction of the transfer of registered shares need the positive votes of holders of shares forming at least seventy-five per cent of the capital. Under TTK 473(3), the same first sentence of TTK 421(3) applies to a capital reduction.
When does an amendment take effect against third parties?
Under TTK 455, the amending resolution has no effect against third parties before it is registered with the trade registry. TTK 36 sets the general rule for registry entries, linked to the announcement in the Turkish Trade Registry Gazette, and reserves special provisions (TTK 36(1)-(2)).
How long do I have to challenge an amendment resolution?
An annulment action under TTK 445 is brought within three months from the date of the resolution at the commercial court of first instance at the head office, by the persons listed in TTK 446. Resolutions falling under TTK 447 are null.
