As of 1 October 2026, the Estonian Tax and Customs Board (ETCB) will implement a mandatory data-based reporting system for salary payment information, fundamentally changing how employers submit monthly tax and social contribution declarations. This reform, announced on 16 September 2026, replaces the traditional TSD (Tax and Salary Data) declaration process with a real-time, automated data exchange platform designed to enhance compliance, reduce administrative burden, and enable immediate verification of payroll tax liabilities. The legal basis stems from amendments to the Taxation Act and the Social Tax Act, which authorize the ETCB to establish a centralized digital interface for salary data transmission. Employers and payroll service providers must adapt their software systems to the new API specifications by the effective date, with a transitional period for testing available from July 2026.
The move aligns with Estonia’s broader digital governance strategy and the EU’s push for real-time reporting under the VAT in the Digital Age (ViDA) initiative, extending similar principles to payroll taxes. The new platform will pre-fill monthly tax returns (Form TSD) and annual income tax returns (Form A), reducing manual data entry for both employers and employees. It also supports the automatic exchange of information under the OECD’s Common Reporting Standard (CRS) and the EU’s Directive on Administrative Cooperation (DAC7), ensuring that cross-border employment income is accurately captured. Companies operating in Estonia should immediately assess their payroll software readiness, engage with certified solution providers, and conduct parallel testing during the summer transition window to avoid disruption.
Key Takeaways
- Mandatory Real-Time Data Submission: Starting 1 October 2026, all employers must submit salary payment details for each employee through the ETCB’s new data-based platform on a monthly basis, no later than the 10th calendar day following the payment month. The system validates data instantly against the population register and tax accounts, flagging discrepancies such as incorrect personal identification codes, mismatched tax exemption applications, or undeclared fringe benefits. This shift eliminates the previous paper-based or batch-file TSD declaration, reducing errors and enabling the tax authority to pre-populate individual income tax returns and social benefit calculations.
- Integration with Payroll Software and Penalties for Non-Compliance: The ETCB has published technical specifications (XML/JSON schema) and a sandbox environment for software developers. Payroll providers must certify their solutions with the Board before go-live. Failure to submit accurate data on time will trigger automatic penalties: a fine of €200 per late submission for small employers and up to €3,200 for large enterprises, plus interest on any resulting tax underpayment. Repeated non-compliance may lead to tax audits and restriction of access to e-services.
- Impact on Cross-Border Workers and Posted Employees: The new regime extends to non-resident employees working in Estonia under posted worker directives or remote work arrangements. Employers must report gross salary, tax withheld, and social contributions for each posting period, using specific codes for international situations. This aligns with EU Directive 2019/1152 on transparent and predictable working conditions and supports the automatic exchange of information under DAC7. Companies with cross-border staff should review their payroll processes to ensure correct classification and reporting of taxable components.
Disclaimer: This article is compiled and summarized by the AI based on publicly available information and is for general information purposes only. It does not constitute any form of formal tax advice, legal opinion, or basis for performance. Please consult a qualified professional tax advisor or legal counsel for tax advice.
Source: Read Official Announcement