Sophos Hukuk Bürosu

Attorney Hüseyin Aydın – Alanya Lawyer

In everyday Turkish, the document people call a “senet” is, in legal terms, a promissory note (TR: bono / emre yazılı senet; DE: Eigenwechsel (Solawechsel); RU: Простой вексель). A promissory note gives the creditor fast and powerful collection through the special enforcement procedure for negotiable instruments (TR: kambiyo senetlerine özgü haciz yolu; DE: Wechselbetreibung; RU: Особый порядок взыскания по векселю). This privilege, however, depends on the note fully meeting the formal requirements laid down by law. If a single mandatory element is missing or filled in incorrectly, the note loses its status as a negotiable instrument (TR: kambiyo senedi vasfı; DE: Wechselqualität; RU: Вексельный статус), and the creditor is forced onto much longer and more expensive routes.

In practice, the most common problems stem from pre-printed promissory note forms being filled in carelessly: leaving the “place of issue” box empty or writing only a neighbourhood and street address, writing “10 days” in the maturity box while adding “I will pay on 23 November 2026” in the body of the note, or noting conditions on the back such as “payable upon delivery of the goods” are among the most frequent. In Alanya, Gazipaşa, Mahmutlar, Konaklı and the wider Antalya region, where tourism, real estate and trade volumes are high, promissory notes are widely used in rentals, car and apartment sales, and construction and renovation work, and foreign parties often sign Turkish pre-printed forms without understanding them.

In this guide we examine, one by one, the details that strip a promissory note of its status, within the framework of Articles 776–778 of the Turkish Commercial Code No. 6102 (TTK) and Article 170/a of the Enforcement and Bankruptcy Law No. 2004 (İİK), illustrated with recent decisions of the Turkish Court of Cassation (Yargıtay). The Turkish, Russian and German equivalents of the key terms are given in the table at the end of the article.

Table of Contents

1. Mandatory Elements of a Promissory Note (TTK Art. 776)

A promissory note (bono) is a negotiable instrument (kıymetli evrak) strictly bound by the formal requirements listed in the law. Under TTK Art. 776/1, a promissory note (bono or emre yazılı senet) contains the following elements:

  1. The word “bono” or “emre yazılı senet” (promissory note) in the text of the instrument (or its equivalent in the language in which the note is drawn up),
  2. An unconditional promise to pay a specified sum,
  3. The maturity date,
  4. The place of payment,
  5. The name of the person to whom or to whose order payment is to be made (the payee),
  6. The date and place of issue,
  7. The signature of the maker (issuer).

Under TTK Art. 777/1, a note lacking any of these elements is not deemed a negotiable instrument. The law provides “saving” (gap-filling) rules for only three elements: a note with no maturity date is deemed payable at sight (Art. 777/2); if there is no place of payment, the place of issue is deemed the place of payment (Art. 777/3); if there is no place of issue, the place written next to the maker’s name is deemed the place of issue (Art. 777/4). The 12th Civil Chamber of the Court of Cassation likewise emphasises that the maturity date is optional, whereas the place of issue and the place of payment are “alternative mandatory elements” (Yargıtay 12. HD, E. 2023/3932, K. 2024/2080, T. 02.05.2024).

It must be stressed that negotiable-instrument status is a matter of public policy. Under İİK Art. 170/a/2, when a timely complaint or objection comes before it, the enforcement court takes into account ex officio (of its own motion) that the note lacks this status. The enforcement proceedings may be cancelled even if the debtor does not specifically raise the point.

2. Absence of the Words “Bono” or “Emre Yazılı Senet”

Because this wording is usually pre-printed on standard promissory note forms, problems rarely arise there; they are, however, common in handwritten or computer-generated documents and in documents headed “debt instrument”, “letter of undertaking” or “payment document”. The Court of Cassation has held that a document whose text contains only the phrase “on maturity of this note…” and does not include the word “bono” or “emre yazılı senet” does not qualify as a negotiable instrument and that the enforcement proceedings must be cancelled ex officio (Yargıtay 12. HD, E. 2016/85, K. 2016/12564, T. 28.04.2016; to the same effect Yargıtay 12. HD, E. 2021/10487, K. 2022/4250, T. 31.03.2022).

Notes drawn up in a foreign language: If the note is prepared in English, Russian or German, the equivalent term in that language (“promissory note”, “простой вексель”, “Eigenwechsel”) must appear expressly in the text. Care should be taken when adding foreign-language notes to a Turkish pre-printed form, as this may create doubt as to the language in which the instrument was drawn up.

3. Conditional Promises to Pay and Security Clauses

The essence of a promissory note is an unconditional promise to pay. Any wording that makes payment dependent on a condition, on performance of a counter-obligation or on an uncertain event destroys the note’s abstract nature (independence from the underlying cause) and its certainty. In the words of the Court of Cassation, clauses on value, interest, waiver of protest and jurisdiction may be placed on a note, but clauses that eliminate its abstract nature or certainty remove its status as a negotiable instrument (Yargıtay 12. HD, E. 2024/5445, K. 2024/10273, T. 05.12.2024).

Examples of wording that invalidates a note

The word “security” on its own is not enough

In practice, the defence most frequently raised by debtors is the objection that “the note is a security note”. According to settled case law of the Court of Cassation, however, the mere presence of the words “security note” (teminat senedi) or “debtor’s security” on a note does not affect its negotiable-instrument status unless it is stated which relationship it secures and that relationship is proven by written evidence (Yargıtay 12. HD, E. 2022/7582, K. 2022/9020, T. 20.09.2022; Yargıtay 12. HD, E. 2016/7522, K. 2016/25536, T. 19.12.2016). Similarly, a security annotation written outside the text of the note does not change its nature (Yargıtay 12. HD, E. 2016/21192, K. 2016/20550, T. 04.10.2016). A note on the back reading “this note may be filled in when … and … are together” also did not invalidate the note, as it did not make the promise to pay conditional (Yargıtay 12. HD, E. 2016/16633, K. 2017/8752, T. 05.06.2017).

4. Maturity Errors: Double Maturity, Instalments and Backdated Maturity

Under TTK Art. 703, which applies to promissory notes by virtue of the reference in TTK Art. 778, maturity may be indicated in only four ways:

Notes whose maturity is stated in any other way, or which show several successive maturity dates, are null and void (Yargıtay 12. HD, E. 2016/26263, K. 2018/754, T. 05.02.2018).

a) Double (conflicting) maturity: “10 days” and “23 November 2026”

The most common ground of invalidity in practice is double maturity (TR: çift vade; DE: Doppelte Verfallzeit; RU: Двойной срок платежа). A pre-printed promissory note form has a “Payment Date / Maturity” box at the top and a blank in the body reading “I will pay … on …”. Filling in these two fields differently takes the note out of the category of negotiable instruments.

Example: A Note with Double Maturity

Date of issue: 01.11.2026 – Place of issue: Alanya

Maturity box: “10 days”

Text of the note: “In consideration of this promissory note, on 23 November 2026 I will pay to Mr/Ms … or order only … TRY as written above…”

Assessment: Calculated from the date of issue, the “10 days” in the maturity box points to 11.11.2026, whereas the date in the text is 23.11.2026. Because the note contains two different maturity dates, it does not qualify as a negotiable instrument and cannot be enforced through the special enforcement procedure for negotiable instruments. Writing only “10 days” in the maturity box also creates a separate dispute, since it remains unclear from which date it is to be calculated; for this reason, maturity should always be written out clearly as day/month/year.

The Court of Cassation is consistent on this point:

Exception: Repeating the date of issue in the maturity box at the top of the note does not in itself amount to double maturity (Yargıtay 12. HD, E. 2022/8080, K. 2022/12673, T. 01.12.2022). Likewise, the maturity date and the date of issue falling on the same day does not affect the nature of the note (Yargıtay 12. HD, E. 2023/3932, K. 2024/2080, T. 02.05.2024).

b) Maturity date earlier than the date of issue

If the maturity date falls on a day before the date of issue, the result is that the note has no legally valid maturity date or date of issue. In a note with a date of issue of 02.06.2011 and a payment date of 09.10.2010, the Court of Cassation held that, since the date of issue was after the maturity date, the note did not qualify as a negotiable instrument (Yargıtay 11. HD, E. 2020/8097, K. 2022/3153, T. 19.04.2022). The Chamber emphasises that the maturity date must fall at a certain time after the date of issue; otherwise the document will not qualify as a negotiable instrument (Yargıtay 12. HD, E. 2019/12498, K. 2020/6502, T. 07.07.2020).

c) Instalment payments cannot be written on a single note

Showing successive maturity dates on a single note, such as “Total TRY 120,000; to be paid as TRY 10,000 on the 5th of each month”, renders the note void. For instalment payments, a separate note should be issued for each instalment. By contrast, an acceleration clause placed on the notes, such as “if not paid at maturity, the subsequent notes also become due”, does not affect their negotiable-instrument status; the clause is simply deemed not written. For an acceleration condition to have effect, a separate contract expressly referring to the notes is required (Yargıtay 12. HD, E. 2016/12254, K. 2016/21460, T. 13.10.2016; Yargıtay 12. HD, E. 2016/596, K. 2016/14023, T. 12.05.2016).

5. Place of Issue Not Shown as a Province / District

The place of issue (TR: düzenleme yeri; DE: Ausstellungsort; RU: Место составления) is the most frequently neglected element. Under the principle adopted in the decision of the Assembly of Civil Chambers dated 02.10.1996, No. 1996/12-590, which the Court of Cassation still applies today, writing the name of an administrative unit (province or district) as the place of issue is both mandatory and sufficient; a full address is not required (Yargıtay 12. HD, E. 2016/24099, K. 2017/14252, T. 16.11.2017).

TTK Art. 777/4, however, contains a “saving” rule: if no place of issue is indicated, the place written next to the maker’s name is deemed the place of issue. Leaving the place-of-issue box empty therefore does not by itself invalidate the note; the note loses its negotiable-instrument status when there is no administrative unit name either in the place-of-issue box or next to the debtor’s name.

Practical consequence: For a note issued in Alanya, writing “Alanya” or “Antalya” in the place-of-issue box is sufficient. Writing only a neighbourhood name such as “Mahmutlar Mah.”, “Oba” or “Kestel”, or leaving the box empty when the debtor’s address also lacks a district, creates a serious risk. Since whether village and neighbourhood names count as administrative units may be disputed depending on the specific case, it is advisable in every case to write the district or province name clearly.

6. Missing Date of Issue and Alteration of Dates

The date of issue is a mandatory element for which the law provides no gap-filling rule; a note without a date of issue does not qualify as a promissory note. That said, according to the Court of Cassation the date need not be accurate; what matters is that a date of issue exists. A note bearing a date earlier or later than the date on which it was actually issued is valid, and the fact that the date was filled in later by the creditor does not, as a rule, affect the nature of the note (Yargıtay 12. HD, E. 2022/7704, K. 2022/14143, T. 27.12.2022).

Alterations and corrections: Corrections to the date or amount on a note are invalid unless confirmed by the maker’s initials or signature. In a note where the year “2010” in the payment date had been changed to “2011” without initials, the Court of Cassation treated the correction as invalid and relied on the originally written date, which resulted in double maturity on the note (Yargıtay 12. HD, E. 2015/24873, K. 2016/1267, T. 19.01.2016). The legal validity of a change made to the date can directly affect the note’s negotiable-instrument status (Yargıtay 12. HD, E. 2025/9820, K. 2026/2317, T. 07.04.2026).

7. Payee’s (Creditor’s) Name Not Written

A promissory note (bono) cannot be issued to bearer. The note must state to whom or to whose order payment is to be made, i.e. the name of the payee (TR: lehtar; DE: Wechselnehmer; RU: Векселедержатель (получатель платежа)). If no natural or legal person is named as payee, the document cannot be accepted as a promissory note and cannot be enforced through the special procedure for negotiable instruments (Yargıtay 12. HD, E. 2016/4869, K. 2016/6693, T. 08.03.2016; Yargıtay 12. HD, E. 2016/7737, K. 2016/9417, T. 30.03.2016). The same result follows where the payee’s name is not the name of a natural or legal person (Yargıtay 11. HD, E. 2020/4606, K. 2020/3638, T. 29.09.2020).

According to settled case law, where the payee’s trade name is written incompletely, the defect may be regarded as cured if the legal entity can be identified from the endorsement (Yargıtay 12. HD, E. 2016/4869, K. 2016/6693; referring to the Assembly of Civil Chambers decision dated 14.03.2001).

8. Signature of the Maker and Signing on Behalf of a Company

A document without the signature of the maker (debtor) does not qualify as a promissory note. As regards companies, the Court of Cassation does not require the signature to be placed over the company stamp or trade name; it is sufficient for the maker’s signature to appear at the bottom of the note and to cover the text (Yargıtay 12. HD, E. 2016/27009, K. 2018/462, T. 22.01.2018; Yargıtay 12. HD, E. 2015/24302, K. 2016/2329, T. 27.01.2016; Yargıtay 12. HD, E. 2021/8535, K. 2022/1920, T. 17.02.2022). However, whether the signatory is authorised to represent the company, and whether the company is represented by joint signature, must be examined separately with regard to the company’s liability under the note.

9. Situations That Do Not Invalidate a Note (Common Misconceptions)

10. Summary Table: Which Defect Has Which Consequence?

Element / ErrorLegal BasisResult
No word “bono” / “emre yazılı senet”TTK Art. 776/1-a, 777/1Not a negotiable instrument
Payment made subject to a condition or counter-performanceTTK Art. 776/1-bNot a negotiable instrument
Only the words “security note”Court of Cassation case lawValid (unless the relationship is proven by written evidence)
No maturity date at allTTK Art. 777/2Valid – payable at sight
Double / conflicting maturity (“10 days” and “23.11.2026”)TTK Art. 778, 703Not a negotiable instrument
Instalment (successive) maturities on a single noteTTK Art. 778, 703Void
Maturity before the date of issueTTK Art. 778, 703Not a negotiable instrument
Maturity and date of issue on the same dayCourt of Cassation case lawValid
No place of paymentTTK Art. 777/3Valid – place of issue applies
No place of issue, but province/district next to debtor’s nameTTK Art. 777/4Valid
No place of issue and no province/district next to debtor’s nameTTK Art. 776/1-f, 777/4Not a negotiable instrument
No date of issueTTK Art. 776/1-fNot a negotiable instrument
No payee nameTTK Art. 776/1-eNot a negotiable instrument
No signature of the makerTTK Art. 776/1-gNot a negotiable instrument
Figures and words differTTK Art. 778/2-c, 676Valid – amount in words prevails

11. Legal Fate of a Note That Loses Its Negotiable-Instrument Status

A note losing its status as a negotiable instrument does not mean that the debt ceases to exist. The consequences can be summarised as follows:

12. Checklist When Issuing or Accepting a Promissory Note

CheckpointWhat to Do
1. HeadingCheck that the text contains the word “bono” or “emre yazılı senet”.
2. AmountWrite the same amount in figures and in words; if in foreign currency, state the currency clearly.
3. MaturityWrite the maturity as day/month/year; make sure the maturity box and the date in the text are exactly the same. Avoid relative expressions such as “10 days” or “1 month later”.
4. InstalmentsIssue a separate note for each instalment; if you want acceleration, conclude a separate contract referring to the notes.
5. Place of issueWrite the province or district name (e.g. “Alanya”). A neighbourhood or street name alone is not sufficient.
6. Date of issueWrite the date and check that the maturity date is not earlier than it.
7. PayeeWrite the creditor’s full name or trade name.
8. Debtor detailsWrite the debtor’s name, Turkish ID / tax / passport number and an address including the province and district.
9. AnnotationsDo not write conditional notes such as “subject to…”, “payable on delivery” or “security for the … contract” on the front or back of the note.
10. CorrectionsAvoid crossing out and overwriting; have any unavoidable correction confirmed by the maker’s initials and, if possible, issue a new note.
11. SignatureCheck that the signature covers the text; when signing for a company, check the signatory’s authority (signature circular).

13. Frequently Asked Questions

Is a promissory note invalid if the place of issue is not written?

Not on its own. Under TTK Art. 777/4, the place written next to the debtor’s name is deemed the place of issue. However, if there is no administrative unit name such as a province or district there either, the note loses its negotiable-instrument status.

What happens if the maturity box says “10 days” and the text gives a specific date?

In that case the note contains two conflicting maturity dates. According to the Court of Cassation, a note with double maturity does not qualify as a promissory note, and the enforcement court takes this into account ex officio.

Does writing “this is a security note” on the back invalidate the note?

That wording alone is not enough. If the note states which contract it secures, or this is proven by written evidence, and that relationship involves reciprocal obligations, the note loses its character as an unconditional promise to pay.

Can a debt still be collected with a note that has lost its negotiable-instrument status?

Yes. The document can be used as an ordinary instrument or as prima facie written evidence; the creditor may initiate enforcement without a judgment through the general attachment procedure or file a debt collection action. However, the speed and convenience of enforcement for negotiable instruments are no longer available.

Can a single note be issued for an instalment debt?

No. Showing successive maturity dates on a single note renders it void. A separate note should be issued for each instalment.

14. Key Terms (TR / RU / DE)

So that foreign readers living in the region can correctly understand the wording on a promissory note, the equivalents of the key concepts are given below.

TürkçeEnglishРусскийDeutsch
Senet (bono / emre yazılı senet)Promissory noteПростой вексельEigenwechsel
Kambiyo senedi vasfıStatus as a negotiable instrumentВексельный статусWechselqualität
VadeMaturity dateСрок платежаVerfalltag
Çift vadeConflicting maturity datesДвойной срок платежаDoppelte Verfallzeit
Düzenleme yeriPlace of issueМесто составленияAusstellungsort
Düzenleme tarihiDate of issueДата составленияAusstellungsdatum
LehtarPayeeПолучатель платежаWechselnehmer
Düzenleyen (borçlu)Issuer (maker)ВекселедательAussteller
Kayıtsız şartsız ödeme vaadiUnconditional promise to payБезусловное обязательство оплатыUnbedingtes Zahlungsversprechen
Teminat senediSecurity noteВексель в обеспечениеSicherungswechsel
Takibin iptaliCancellation of enforcementОтмена исполнительного производстваAufhebung der Betreibung

15. Conclusion

When properly drawn up, a promissory note offers the creditor one of the most effective collection tools in Turkish law. The price of this power, however, is full compliance with the formal requirements set by law. Court of Cassation case law clearly shows that a small date discrepancy between the maturity box and the text, forgetting the district name in the debtor’s address, a conditional note written on the back, or an instalment plan written on a single note is enough to strip a note of its negotiable-instrument status. Moreover, because the enforcement court takes these defects into account ex officio, the debtor’s failure to object does not protect the creditor either.

The party accepting a note can largely prevent future loss of rights by applying the checklist above at the moment of signing; the party issuing the note, if faced with enforcement proceedings based on a negotiable instrument, should examine within the five-day period whether the note meets the formal requirements. For your specific disputes, and to avoid any loss of rights, it is advisable to seek professional legal advice from a lawyer.

Legal Notice: This text has been prepared for general information purposes only and does not constitute legal advice. sophoshukuk.com makes no referral, guarantee or promise of outcome. Each case must be assessed on its own particular circumstances; for your specific dispute, please obtain professional advice from a lawyer.

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