Will I Still Owe Tax in My Home Country?

Image: illustration supplied by the contributor. The retail GST scene is illustrative, not a depiction of home-country income-tax rules.

Often, yes. Becoming a Singapore tax resident does not automatically end your tax obligations in your home country. Whether you still need to file a tax return or pay tax depends on your citizenship, tax residence, income sources, the tax laws of your home country and whether a double-taxation agreement applies.

It is important to understand that having to file a tax return does not necessarily mean you owe tax. You may still have reporting obligations even if you qualify for tax relief or have no additional tax payable.

Why does this matter?

Singapore generally does not tax most foreign income received in Singapore by individuals. However, exceptions apply, including certain income received through a partnership in Singapore.

Other countries have different rules. Some primarily tax individuals based on tax residence, while others, such as the United States, generally tax their citizens on worldwide income regardless of where they live.

As a result, moving to Singapore may reduce your home-country tax exposure, but it does not automatically eliminate your tax or reporting obligations.

The United States example

U.S. citizens generally remain subject to U.S. federal income-tax rules on their worldwide income, even when they live and work in Singapore. They may need to file a U.S. federal income-tax return, depending on their circumstances and the applicable filing thresholds.

Separate reporting obligations may also apply to certain foreign financial accounts and assets, even when no additional income tax is payable.

However, qualifying Americans living abroad may be eligible for tax relief through several mechanisms.

1. Foreign Earned Income Exclusion (FEIE)

For tax year 2026, eligible taxpayers may exclude up to US$132,900 of qualifying foreign earned income from U.S. federal income tax.

The exclusion is not automatic. Taxpayers must meet the relevant eligibility requirements, including having a foreign tax home and satisfying either the bona fide residence test or the physical presence test.

The FEIE applies to qualifying earned income, not all types of income. It does not automatically eliminate every U.S. tax liability.

2. Foreign Tax Credit

Eligible taxpayers may claim a Foreign Tax Credit for qualifying income taxes paid to a foreign country, potentially reducing their U.S. tax liability.

The amount of relief depends on the type of income, the foreign tax paid and the applicable limitations. The credit does not necessarily eliminate all U.S. tax.

3. Foreign housing exclusion or deduction

Qualifying taxpayers may also be able to claim a foreign housing exclusion or deduction for eligible housing expenses, subject to applicable limits and conditions.

The FEIE, Foreign Tax Credit and housing relief have different rules. They cannot always be combined to obtain relief on the same income. The FEIE also does not generally eliminate U.S. self-employment tax on qualifying self-employment earnings.

What about other home countries?

Many countries primarily tax individuals according to their tax residence, but their rules vary. Some also tax citizens or apply special rules to people who have moved abroad.

Moving permanently to Singapore may cause you to cease being tax resident in your former country, but this depends on that country’s domestic laws, departure rules and any applicable tax treaty.

Factors that may be relevant include:

• How many days you spend in your former country and in Singapore.
• Whether you retain a home or other significant ties in your former country.
• Where your family and economic interests are based.
• Whether you meet the country’s specific departure or non-residence requirements.

These factors do not form a universal checklist. For example, selling your former home or spending most of your time in Singapore does not automatically establish that you are no longer tax resident elsewhere.

Even after you cease to be tax resident in your home country, you may still owe tax on certain income sourced there. Rental income from a property you continue to own, for example, may remain taxable in that country. You may also have filing obligations relating to the year you leave.

How do double-taxation agreements help?

Singapore has Avoidance of Double Taxation Agreements (DTAs) with many countries. These agreements help determine which country has taxing rights over particular types of income and may provide relief through exemptions, reduced tax rates or tax credits.

Can Singapore tax residents claim a Foreign Tax Credit?

Singapore tax residents may qualify for a Foreign Tax Credit when the same income is taxed overseas and in Singapore.

Generally, the individual must meet these conditions:

1. They are a Singapore tax resident for the relevant basis year.
2. Tax has been paid or is payable on the same income in the foreign country.
3. The income is taxable in Singapore.

The credit is generally limited to the lower of the qualifying foreign tax paid and the Singapore tax attributable to the relevant foreign income, subject to IRAS rules.

There is an important qualification: most foreign income received in Singapore by individuals is generally not taxable in Singapore. Consequently, a Singapore Foreign Tax Credit is not available for every instance of overseas taxation.

For example, if you receive foreign rental income that is taxable in Singapore as well as in the country where the property is located, you may be eligible for relief if all relevant conditions are met. The treatment must be assessed based on the actual income and circumstances.

What is a Certificate of Residence?

If you qualify as a Singapore tax resident and need to claim benefits under a DTA, you may apply to IRAS for a Certificate of Residence (COR).

The certificate confirms your Singapore tax residence for purposes of claiming applicable treaty benefits from a foreign tax authority. Depending on the relevant treaty and income type, those benefits may include reduced withholding tax rates or other tax relief.

A COR does not automatically guarantee treaty relief. You must still meet the applicable treaty conditions, and the foreign tax authority may require additional documentation.

Eligibility and application procedures depend on your circumstances. Foreign employees who qualify as Singapore tax residents may also be eligible to apply.

Common situations to understand

1. A U.S. citizen working in Singapore

The individual generally remains subject to U.S. worldwide-income taxation and may need to file a U.S. return. The FEIE, Foreign Tax Credit and other relief may help, subject to eligibility and limitations.

2. A Singapore tax resident earning rental income overseas

The income may be taxable in the country where the property is located. Singapore generally exempts most foreign income received by individuals, but the precise treatment depends on the circumstances. A Singapore Foreign Tax Credit may be relevant only if the income is also taxable in Singapore and the other conditions are met.

3. Someone who has moved permanently to Singapore

The person may cease to be tax resident in their former country, but must satisfy that country’s residence and departure rules. Certain locally sourced income and filing obligations may continue.

4. Someone who remains tax resident in their home country

They may continue to be taxed there, potentially on worldwide income, depending on the country’s rules. A DTA may provide relief, but does not automatically remove the obligation to file a return.

What should you do before assuming you no longer owe tax?

If you have moved to Singapore or are planning to relocate, consider these steps:

1. Check your home country’s rules. Determine whether citizenship, tax residence or worldwide-income provisions affect you.
2. Establish your tax residence. Review the rules for the year you moved, including any departure-year requirements.
3. Identify your income sources. Employment income, business profits, dividends, interest and rental income may receive different tax treatment.
4. Check whether a DTA applies. Review the relevant treaty and the relief available for your particular income.
5. Keep supporting records. Retain details of travel dates, income sources, foreign taxes paid and tax returns filed.
6. Consider a Certificate of Residence. If you qualify and need treaty benefits overseas, check IRAS’s application requirements.
7. Seek professional advice when necessary. A qualified cross-border tax adviser can help if you have income, assets or continuing obligations in more than one country.

Key takeaway

This article provides general information, not individual tax advice. Tax laws and treaty provisions can change, so readers should check the applicable official guidance for their circumstances.