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7 Real-World Consequences of Being a US Tax Resident for US-Australian Couples

US-Australian couples face tough financial decisions come tax time. As a trusted financial advisor, we provide guidance to Australians and Americans deciding how to file taxes in the most optimal way for their financial situation.


Unfortunately, there’s no one-size-fits-all approach for US-Australian couples, and the decisions each couple makes depend on various factors.


Below, we cover seven real-world implications of being a US tax resident that we consider before advising US-Australian clients about tax planning. Among other things, the outcomes of these consequences should be examined before the couple decides how to file their taxes.


1. Reporting Considerations


The IRS wants to know about all substantial income and assets owned by a US tax resident. This means that any foreign bank accounts owned by a US tax resident with an aggregate balance over $10,000 must be reported to the IRS using the Financial Crime Enforcement Center’s (FinCEN) Form 114, also known as the FBAR. This rule applies to joint accounts held by both spouses, even if the primary owner of the account is the non-US citizen spouse.


However, if the couple elects to file their taxes as married filing jointly, and the non-US citizen is not a lawful permanent resident, is not a resident alien of the US, and has not made a first-year election, that spouse’s individually-held bank accounts are not subject to FBAR reporting.


Similarly, Form 8938 (FATCA) requires US citizens to report certain foreign financial assets according to specified aggregate value thresholds, location of the assets, and tax filing status. Aggregate value thresholds change depending on whether the couple elects to file married filing jointly or married filing separately and where the couple are located. Additionally, couples who choose to file jointly may also subject the non-US citizen spouse to file their own Form 8938.


2. Passive Foreign Investment Company Issues


Passive foreign investment companies (PFICs) are foreign entities in which at least 75% of their income is generated from non-business operations such as investments, or more than 50% (≧50%) of assets produce passive income. US tax residents who own almost any foreign mutual funds or investment companies are subject to a punitive US tax regime on the income and gains from such investments.


The PFIC tax regime seeks to discourage US taxpayers from shifting their income out of the US taxation system, so the default method imposes tax rates starting at the highest marginal tax rate prevailing at the time the investment was held, plus an extra interest charge.


When all is said and done, income earned from PFICs may be taxed at a rate of 50% or above. Furthermore, the IRS assumes that for each PFIC form prepared, the prep time is estimated to be 20 hours or more. The cost of this tax preparation alone may even be more costly than the actual tax liability on the earned income.


This is important for US-Australian couples to consider because, based on your filing status and the non-US citizen’s plans to apply for citizenship or legal residency, you may want to carefully plan for or altogether avoid investing in PFICs in your resident country.


3. Treatment of Foreign Retirement Plans


US citizens are accustomed to enjoying significant tax advantages when contributing to a retirement account in the form of tax deductions and tax-free growth. When contributing to a foreign retirement account, US tax residents typically have to pay taxes on retirement contributions, accruals, and withdrawals from foreign retirement accounts.


Unless cross-border recognition of retirement accounts is definitively realized in an income tax treaty between the US and your country of residence (which is not common), US tax residents need to consider the tax impact of foreign retirement plans.


Couples who elect to file their taxes jointly should examine how this election will impact the non-US citizen spouse’s plans to both save for retirement and withdraw from your retirement accounts after you’ve retired. Additionally, couples should carefully consider which country you plan to primarily reside in during retirement when choosing whether to invest in the US or in your country of residence.


4. Net Investment Income Tax


Net investment income tax (NIIT) is a flat 3.8% tax on investment income for US taxpayers whose income exceeds a threshold determined by their filing status. The threshold for single taxpayers is $200,000, while the threshold for taxpayers filing jointly is $250,000 and $125,000 for taxpayers filing separately.


Net investment income tax applies to all investment income regardless of the source. It cannot be offset by foreign tax credits. For those affected, this is a clear case of double taxation. As of the time of writing, it is yet unclear per the Joint Committee on Taxation or the Treasury whether NIIT is a social security tax or an income tax. Depending on what type of tax NIIT is ruled to be, expats may be able to avoid the tax in the future.


5. Treatment of Foreign Trusts


The sourcing of trust income is determined based on the type of income earned by the trust. If the trust is a US grantor trust, it is disregarded for US income tax purposes and the income is attributed directly to the trust grantor (owner).


Non-grantor trust income, on the other hand, is generally not taxed in the US unless the source of income is from the US. Of course, US beneficiaries of a foreign trust must report their share of foreign trust income over a certain threshold, regardless of whether they are the beneficiary of a grantor or non-grantor trust.


6. Businesses


Expatriates (expats) who own a business outside of the U.S. must consider Controlled Foreign Corporation (CFC) rules. A company is considered a CFC if it meets the following requirements:

  • The company is a foreign company;

  • The company has at least one US ‘shareholder’ (>10% individual or 12% partnership), and;

  • The US shareholder(s) own, on any day during the foreign corporation’s tax year, >50% of either:

  • The company’s total value, or

  • The company’s total voting stock

If those three requirements are met, the structure of the business has consequences for tax filing purposes. Business bank accounts are also subject to the FinCEN Form 114 (FBAR) described above. US-Australian couples who are also business owners need to be familiarized with the tax obligations for their business revenue.


7. HEART Act for Green Card Holders


The Heroes Earnings Assistance and Relief Tax (HEART) Act that was passed in 2008 provided new rules regarding the exit tax for “covered expatriates” who leave the US global tax net (IRC §877). These tax obligations were meant to prevent wealthy US citizens and green card holders from accruing significant wealth and then renouncing their citizenship to avoid paying taxes.


Covered expatriates are, generally speaking, US citizens or green card holders who meet a particular net worth threshold or tax liability threshold. Covered expatriates also include those who cannot prove total IRS compliance within the previous five years when choosing to renounce their US citizenship or legal residency status.


This is important for US-Australian couples if you are considering applying for a green card for the non-US spouse. If the non-US spouse ever decides to voluntarily give up their green card status, or if the green card is revoked for any reason, tax implications mandated by the HEART Act may be triggered on that person’s entire portfolio of income and assets.


Learn More About Financial Planning for US-Australian Couples by Scheduling a 15-minute Fit Call


At Areté Wealth Strategists, we are experienced and qualified in the domestic and cross border matters of Australia and the United States. We bring strategy, structure, clarity, confidence and compliance to our clients’ global financial lives and keep it that way.


Our clients live a globally mobile existence, and therefore we supply our clients with access to technological solutions that are location independent and secure.


To learn more about Areté Wealth Strategists and how we can support your family, visit www.arete-wa.com or simply click here to schedule a call.


Content in this material is for general information only and is not intended to provide specific advice or recommendations for any individual.

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