Registration
MERSİS supports electronic registration, amendment and deletion transactions for companies and commercial enterprises and stores registry content that must be registered and announced.
The current MERSİS page describes electronic registry transactions and centralized registry information as its core functions.
Open Ministry of Trade / MERSİS high volatility
Atlas does not infer:
MERSİS access does not choose a legal form or complete tax, social-security, banking, licence, investment or sector approvals.
MERSİS is designed to associate legal persons and other economic units with a unique number and provide public authorities a central information source.
The official page identifies companies, traders, professional bodies, associations, foundations, unions, chambers and public bodies within the central-number function.
Open Ministry of Trade / MERSİS high volatility
Atlas does not infer:
Inclusion in the information architecture does not mean every listed form is created or administered through the same procedure.
The Ministry of Trade maintains distinct legislation and secondary rules for companies, trade registries, formation signatures, titles, liquidation and electronic books.
The current official legislation index lists separate laws, regulations, communiqués and guidance topics.
Open Ministry of Trade high volatility
Atlas does not infer:
An index does not determine the current documents, capital, signatures, approvals or filing steps for a particular legal form.
Tax
GİB guidance states that trade-registry transmission of qualifying corporate-taxpayer registration documents is treated as satisfying the commencement-notification duty for those taxpayers.
General Communiqué No. 546 describes electronic Ministry-to-tax-administration information transfer and the statutory commencement-notification effect.
Open Revenue Administration (GİB) high volatility
Atlas does not infer:
This integration does not determine tax type, liability, VAT, e-invoice, books, declarations or duties for non-qualifying taxpayers.
GİB’s current taxpayer guidance provides in-person, postal and Digital Tax Office routes for natural persons’ commencement notifications.
The current guidance distinguishes commencement, change and cessation notifications and their available channels.
Open Revenue Administration (GİB) high volatility
Atlas does not infer:
The natural-person route must not be generalized to every company, partnership, association, foundation or foreign entity.
GİB distinguishes associations and foundations from their continuous commercial, industrial or agricultural economic enterprises for corporate-tax purposes.
The current corporate-tax guidance states the entity-level position and separately describes associated economic enterprises as corporate taxpayers.
Open Revenue Administration (GİB) high volatility
Atlas does not infer:
This distinction does not establish VAT, withholding, exemption, public-benefit, donation deductibility or a particular organization’s tax result.
Lifecycle
GİB treats commencement, business or address changes, and cessation as separate taxpayer notifications.
The page separately lists reportable changes and cessation/change submission routes.
Open Revenue Administration (GİB) high volatility
Atlas does not infer:
A tax cessation notice does not dissolve an entity, cancel trade-registry, social-security, municipal, customs or licence records.
DERBİS enables associations to submit legally required declarations and notifications electronically.
The official DERBİS page describes electronic association processes and 24-hour declaration and notification submission.
Open Directorate General for Relations with Civil Society high volatility
Atlas does not infer:
System availability does not decide which filing applies, whether it is complete, or whether a deadline or approval has been satisfied.
A February 2026 provincial civil-society notice states that associations’ 2025 declarations are submitted through DERBİS during the 2026 declaration period.
The dated official notice identifies the reporting year, 2026 period and DERBİS channel.
Open Directorate General for Relations with Civil Society / Bilecik Provincial Directorate high volatility
Atlas does not infer:
This dated notice is not a perpetual deadline rule and must be freshly checked for each reporting year and organization.
Employer
SGK provides an online workplace-notification application for employers who will begin employing insured workers.
The official application page states its purpose is online transmission of information by employers beginning to employ insured persons.
Open Social Security Institution (SGK) high volatility
Atlas does not infer:
Portal availability does not determine worker classification, coverage, contribution, payroll, occupational-safety or filing applicability.
Nonprofit
The Ankara civil-society authority describes an association as a legal-person group formed by at least seven natural or legal founders and lists the formation notice, charter and supporting documents for submission to the civil authority.
The current provincial official page states the definition, minimum founders and document list.
Open Directorate General for Relations with Civil Society / Ankara Provincial Directorate high volatility
Atlas does not infer:
This does not establish foundation, foreign-association, branch, public-benefit, fundraising, tax or activity-specific approval.
Official association guidance states that foreign in-kind or cash assistance requires a DERBİS notification before use.
The current official notifications page describes the pre-use DERBİS notification condition.
Open Directorate General for Relations with Civil Society / Karabük Provincial Directorate high volatility
Atlas does not infer:
A notification route is not permission for every foreign grant, fundraising campaign, transfer, sanctions-sensitive activity or regulated project.