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Year-end closing and corporate tax filing: mastering deadlines and securing performance

The annual closing is a defining step for any company. It’s not just about producing the accounts. It’s a key moment to analyze performance, adjust strategy, and prepare the tax filing.

Meeting deadlines helps avoid financial risks and improves the quality of overall management.

Deadlines for closing the accounts

As a general rule:

  • The annual accounts must be drawn up within 6 months of the closing date.
  • The general meeting must approve the accounts within that same period.

For a fiscal year closed on December 31, approval must take place before June 30.

This timeline affects:

  • Dividend distribution
  • Executive compensation
  • Banking relationships
  • Tax planning

Deadlines for corporate tax filing

Deadlines vary by canton, but generally:

  • The tax return must be filed within a few months of the closing date.
  • An extension request can be filed.

Note: an extension applies to the filing itself, not necessarily to the installment payments.

A delay can result in:

  • Late payment interest
  • Assessment by estimation (ex officio taxation)
  • Additional administrative procedures

Turning the closing process into a management tool

The closing process is an opportunity to:

  • Review margins by activity or country
  • Adjust pricing
  • Analyze fixed and variable costs
  • Evaluate executive compensation structure
  • Review depreciation and provisions

Setting up dynamic dashboards or BI reporting helps turn financial data into strategic decisions.

HR and payroll considerations

Companies with:

  • Multiple sites
  • Cross-border employees
  • Senior executives
  • Specific pension fund (LPP) plans

need to factor these elements into their annual review.

A compliance review reduces risk in the event of a tax or social security audit.

📌 FAQ – Year-end closing & tax filing

Does the closing need to be completed before the general meeting?

Yes. The accounts must be prepared before their formal approval.

Can an extension be requested for the tax filing?

Yes, in most cantons, through a formal request.

Why include an internal audit at closing time?

To ensure compliance, identify risks, and improve the quality of reporting.

Conclusion

Meeting legal deadlines is just the baseline. The real challenge lies elsewhere: turning the closing and tax filing process into tools for performance and governance.

Moving from execution to strategic advisory means anticipating instead of correcting.

👉 Need an outside perspective on your closing process or financial workflows?

Email: info@dyngroup.ch

021 566 82 00 | 022 566 66 20

Discover our approach to audit and strategic management.

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