This is part three of our cross-border tax planning series: After a move – income, reporting, and cross-border compliance

Many people assume that once they leave, their tax reporting stops, but this is rarely the case. Rental income, dividends, salary, or other investments often continue to be taxed or require reporting in the country you’ve departed from. In some countries, reporting obligations continue until the tax number is deactivated.

Failing to address these obligations can result in penalties, interest, or unintended double taxation. Understanding which income is reportable where, and when, is essential.

Key reporting considerations

1. Finalising tax returns in the country you are leaving

Typically, you will complete a final tax return for your previous country of residence. This ensures that any income earned before departure is properly reported and taxed, and that foreign tax credits can be applied when filing in your new country.

2. Reporting income in your new country of residence

Once tax residency changes, your new country may require you to declare worldwide income or only income earned after arrival, depending on its rules. Some jurisdictions also tax capital gains from assets held before residency, making early planning critical.

3. Ongoing obligations for income sourced from the old country

If you retain assets or receive income from the country you’ve left – such as rental properties, royalties, or business income – you may have reporting obligations that continue for months or even years. Understanding how these obligations interact with your new country’s tax system prevents unnecessary taxation.

Salary and employment considerations

For expatriates who continue working for an employer in their home country or for a multinational group, salary structuring can have a significant tax impact. Exchange control regulations must also be factored in. For example, South Africa requires an active tax number in order to move funds offshore.

Key questions to address include:

  • Where is the salary taxed? This depends on employment agreements, the location of services performed, and local tax laws.
  • How are benefits treated? Relocation allowances, pensions, and other benefits may be treated differently in the new jurisdiction.
  • Double taxation is possible, but can often be mitigated using foreign tax credits or treaties. Correct timing of tax filings is essential to maximise these credits.

Cross-border investment income

Investment income, such as dividends, interest, and Capital Gains, needs careful attention:

  • Some countries may withhold tax at source, which can sometimes be claimed back through foreign tax credits in your new country.
  • Others may consider the timing of Capital Gains based on your residency date, taxing gains accumulated before arrival.
  • Misunderstanding these rules can result in paying more tax than necessary, highlighting the importance of pre-departure planning and accurate post-arrival reporting.

Retirement funds and pensions

Retirement planning is often overlooked in cross-border moves, but it can have major tax consequences:

  • Different jurisdictions treat withdrawals, transfers, and ongoing contributions differently.
  • Some countries require immediate encashment upon departure, while others allow assets to remain invested.
  • Timing withdrawals can reduce exposure to exit taxes or higher personal tax rates in the new country.
  • Coordinating with advisers in both countries ensures compliance and efficiency.

Common mistakes in post-move reporting

  • Delaying finalisation of the old country’s tax return, which can delay foreign tax credit claims.
  • Failing to declare ongoing income streams or understanding their treatment in the new country.
  • Assuming retirement funds or offshore assets are automatically treated the same across jurisdictions.
  • Ignoring treaty provisions that could prevent double taxation.

Practical tips for smooth compliance

1. Document all income sources from both countries before and after the move.

2. Maintain timelines for tax filings, including any special exit reporting obligations.

3. Engage advisers in both countries, ideally with cross-border experience, to ensure rules are interpreted consistently.

4. Use a coordinated approach so that asset management, retirement planning, and income reporting are aligned across jurisdictions.

Confident cross-border compliance

Cross-border income and reporting compliance can be complex, but it is manageable with proactive planning. The key is to understand obligations in both jurisdictions, complete filings in the correct order, and work with advisers experienced in both systems.

Handled correctly, compliance not only avoids penalties but also ensures your income, investments, and retirement assets are fully optimised for your new life abroad.


Take control of your cross-border finances today. Work with our experts to optimise your income, assets, and retirement planning as you build your future beyond borders. Email us now at [email protected] or call +27 (0) 21 657 1517 to get started.

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