Monaco vs Hong Kong SAR Corporate Tax Comparison

The corporate income tax rate in Monaco is 25% for companies that derive more than 25% of their revenue from operations outside of Monaco. Companies that do not meet this criterion are generally exempt from CIT​.https://gsl.org/en/taxes/monaco/

Corporations: 8.25% on the first HKD 2 million of assessable profits and 16.5% on the remainder; unincorporated businesses: 7.5% on the first HKD 2 million and 15% on the remainder.

Corporate tax returns in Monaco must be filed annually. The specific due dates can vary, but typically, tax returns are required to be submitted within 3 months following the end of the financial year​

The tax return forms are typically released on the first working day of April each year. The filing deadline is usually within one month from the day the forms are released. Certain companies (e.g., those with a fiscal year ending on December 31) may have an extended filing deadline, typically until August 15 of the year the forms are released, and in certain circumstances (e.g., electronic filing), extensions may be granted.

The payment of corporate income tax in Monaco is generally due within 3 months of the end of the financial year, coinciding with the tax return filing deadline​​

For companies with a fiscal year ending on December 31st, the final tax payment for a specific tax year is typically due in November of the year when the tax return is filed.

Monaco requires companies to make estimated tax payments throughout the year. These payments are usually based on the previous year's tax liability and are typically made in four installments. The exact dates for these installments are determined by the tax authorities, but they commonly fall at the end of each quarter​

For companies with a fiscal year ending on December 31st, interim taxes for a specific tax year will be paid in two installments, typically due in November of the current year and January of the following year.