Business Tax Calendar: 10 Important Deadlines Every Business Owner Should Know

Why Is It Important to Keep Track of Tax Deadlines?

Running a successful business is about more than generating revenue. One of the key factors for long-term stability is meeting tax and accounting obligations on time.

Missing important deadlines can lead to:

  • late payment interest,
  • financial penalties,
  • additional requests from the tax authority,
  • unnecessary administrative stress.

Even if your business works with an accounting firm, every business owner should understand the most important tax deadlines throughout the year.


1. VAT Returns

If your company is VAT registered, submitting VAT returns on time is one of your most important recurring obligations.

Before submission, it is recommended to verify:

  • issued and received invoices,
  • VAT rates,
  • advance payments,
  • credit notes and VAT adjustments.

Accurate VAT reporting helps reduce the risk of future tax corrections.


2. Payroll Processing and REK Reporting

Employers are responsible for:

  • calculating employee salaries,
  • submitting the required payroll reports,
  • paying taxes and social security contributions on time.

Errors made during payroll processing can have long-term consequences if not corrected promptly.


3. Social Security Contributions for Sole Proprietors

Self-employed individuals should regularly monitor:

  • monthly contribution amounts,
  • payment deadlines,
  • any legislative changes affecting contribution calculations.

Late payments may result in interest charges and enforcement procedures.


4. Advance Corporate Income Tax Payments

Many companies continue paying advance tax based on previous years without reviewing whether the amount still reflects current business performance.

If your financial results have changed significantly, your advance tax payments may be adjusted.


5. Annual Financial Statements

Every company must prepare and submit annual financial statements within the prescribed deadlines.

Financial information published through AJPES is also reviewed by:

  • banks,
  • suppliers,
  • business partners,
  • investors.

Accurate financial reporting strengthens your company’s credibility.


6. Inventory and Fixed Asset Verification

Inventory counts should not be performed only at year-end.

Regular reviews help ensure:

  • accurate accounting records,
  • proper asset management,
  • correct depreciation calculations,
  • easier year-end reporting.

7. Monitoring eDavki Notifications

Many official communications from the Slovenian Financial Administration (FURS) are now delivered electronically through the eDavki portal.

Failing to review notifications regularly may result in missed deadlines and lost appeal rights.


8. Reviewing Outstanding Receivables

At least once a month, businesses should review:

  • overdue invoices,
  • outstanding customer balances,
  • collection procedures.

Effective receivables management improves liquidity and reduces financial risk.


9. Reviewing Tax-Deductible Expenses

Before the end of the financial period, it is advisable to review:

  • representation expenses,
  • vehicle costs,
  • business travel,
  • investments,
  • depreciation.

Correct tax treatment directly affects taxable income.


10. Regular Meetings with Your Accountant

Many business issues arise because accountants become involved only after a problem has already occurred.

Regular financial reviews allow businesses to:

  • plan taxes more effectively,
  • monitor financial performance,
  • identify risks early,
  • make better business decisions.

Conclusion

Tax deadlines are not merely administrative obligations—they are an essential part of responsible business management.

Businesses that plan ahead can:

  • reduce tax risks,
  • improve cash flow,
  • avoid unnecessary costs,
  • make more informed financial decisions.

Need Professional Support?

At K2A d.o.o., we help businesses stay compliant with tax regulations, monitor important deadlines, prepare tax returns, and provide proactive accounting and tax advisory services.

Don’t wait for a reminder from the authorities—stay one step ahead with professional accounting support.