Financial Planning for Australians Working in Tech in the United States

Australians working in tech in the United States often experience a significant increase in income after relocating overseas. Senior engineers, product managers, software architects, founders, and executives at major US technology firms can earn compensation packages far above equivalent Australian salaries once RSUs, bonuses, and stock options are included.

However, the financial opportunities available to Australian tech expats also come with substantial complexity. Many unknowingly create tax inefficiencies through poor investment structures, incorrect residency assumptions, or mismanaged equity compensation.

This blog explores the major financial planning issues affecting Australians working in tech in the United States, including tax residency, PFIC rules, equity compensation, investing while overseas, retirement planning, and returning to Australia.

Tax Residency and Cross-Border Tax Planning

Understanding US Tax Residency

Most Australians working in tech in the United States become Australian non-residents for tax purposes after relocating overseas, particularly where they establish a long-term home and employment in the US.

At the same time, they will generally become US tax residents under the Substantial Presence Test or Green Card residency rules. Once classified as a US tax resident, the IRS taxes worldwide income regardless of where assets are held.

This residency transition can significantly change the taxation of:

• Investment income;

• Capital gains;

• Australian property;

• Equity compensation;

• Superannuation.

As a result, tax residency planning is critical, particularly before major financial events such as exercising stock options, selling concentrated equity positions, or returning to Australia.

US Filing Requirements and PFIC Rules

Many Australian expats are surprised by the scope of US reporting obligations. In addition to annual US tax returns, Australians may also need to disclose:

• Foreign bank accounts (FBAR reporting);

• Australian superannuation accounts;

• Non-US investment accounts;

• Foreign trusts and investment structures.

One of the biggest traps for Australians in America is the PFIC regime.

Under US tax law, many Australian managed funds and ETFs are classified as Passive Foreign Investment Companies (PFICs). These rules can result in punitive tax rates, interest charges, and complex annual reporting obligations.

As a result, continuing to invest in Australian-domiciled ETFs after moving to the US can create major tax inefficiencies.

Tech Compensation Planning

RSUs, Stock Options and ESPPs

Equity compensation is often the largest wealth-building opportunity for Australians working in tech in the United States, but the tax treatment differs significantly between compensation structures.

Restricted Stock Units (RSUs) are generally taxed as ordinary income upon vesting. One common mistake is assuming employer withholding is sufficient. For high-income earners, withholding rates are often too low relative to actual tax liabilities.

Stock options require even more planning because outcomes depend on grant type, exercise timing, holding periods, and residency status at grant, vesting, and exercise. Cross-border taxation becomes particularly complicated where options were granted before moving countries or exercised after returning to Australia.

Employee Share Purchase Plans (ESPPs) can also provide attractive opportunities through discounted share purchases and price lookback provisions. However, poorly timed sales can materially increase tax payable, particularly where foreign exchange movements and residency changes are involved.

Managing Concentrated Stock Positions

Many Australian tech expats can eventually accumulate substantial positions in employer stock through repeated equity grants and stock appreciation. The issue is not simply volatility; it is concentration risk.

If the technology sector falls:

• Equity values decline;

• Bonuses may reduce;

• Employment risk can increase simultaneously.

For Australians working in tech in the United States, decisions around when to sell shares, how to structure diversification, and how to coordinate equity sales with tax optimising in mind can materially impact after-tax outcomes.

A Financial Adviser can help align investment decisions with both US and Australian tax rules, reduce unintended tax consequences, and build a structured plan to gradually de-risk concentrated positions without triggering avoidable tax costs.

Investing While Living in the United States

Australians can absolutely continue investing while living overseas, but the investment structure becomes critically important once US tax residency begins.

Many Australian Expats continue investing through Australian platforms after relocating overseas. In many cases, this can still be entirely appropriate, particularly where the long-term intention is to eventually return to Australia.

However, the underlying investments themselves must be suitable from a US tax perspective.

The biggest issues typically involve:

• PFIC exposure;

• Foreign trust reporting;

• Currency mismatches;

• US estate tax exposure.

For many Australians working in tech in the United States, direct Australian shares and US-domiciled ETFs are often more appropriate because they generally avoid PFIC treatment and simplify US tax reporting obligations.

Portfolio construction should also consider future Australian residency, currency exposure between AUD and USD, estate planning implications, and long-term repatriation flexibility.

Retirement Planning Across Two Countries

401(k) and Roth IRA

US retirement accounts can provide substantial long-term tax advantages, particularly where employer-matched 401(k) contributions are available. Roth IRA strategies may also provide valuable tax-free growth opportunities.

However, retirement planning becomes more complicated for Australians who eventually intend to return home, particularly because Australian tax treatment of US retirement accounts requires careful consideration.

Superannuation Planning

One of the biggest misconceptions among Australian Expats is that continuing superannuation contributions while living in the US is always beneficial. In practice, additional super contributions while a US resident are often not advisable because:

• The US may not recognise concessional tax treatment;

• Earnings inside your Australian super may not receive tax deferral with the IRS;

• Additional reporting complexity may arise.

For many Australians living in the US, preserving existing super while prioritising US retirement structures or investments outside super can be more efficient during US residency.

Returning to Australia

Many Australians fail to properly plan their return to Australia, which can become extremely costly.

Returning to Australia changes the tax treatment of worldwide assets, investment income, and future capital gains. The period immediately before re-establishing Australian residency is often one of the most valuable financial planning windows available.

Pre-return planning may involve:

• Selling concentrated stock positions;

• Exercising stock options;

• Reviewing unrealised capital gains;

• Restructuring investment portfolios;

• Assessing retirement account strategies.

Some Australian expats may also become subject to US exit tax rules, particularly certain Green Card holders and US citizens. The exit tax regime can deem certain assets sold immediately before expatriation, potentially creating substantial tax liabilities.

Conclusion

Australians working in tech in the United States operate in one of the most financially rewarding yet complex expatriate environments.

The interaction between US tax law, Australian residency rules, PFIC legislation, equity compensation, retirement systems, and cross-border investing creates planning challenges that require specialist advice.

For Australian tech professionals, financial planning is not simply about investing; it is about coordinating tax, equity, retirement, and residency strategies across two countries in a way that protects and maximises long-term wealth.

Runway Wealth Management is the trusted Financial Adviser to the Australian Expat community. Our tailored advice is backed by expertise, education and experience, which allows us to be at the forefront of Australian Expat Financial Planning.

If you would like to speak to one of our Expat Financial Advisers about this blog or if you have other queries, we would be more than happy to speak with you. Feel free to send us an enquiry through the ‘Contact Us’ tab provided in the link below:

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General Advice Disclaimer: The information contained herein is of a general nature only and does not constitute personal advice. You should not act on any recommendation without considering your personal needs, circumstances, and objectives. We recommend you obtain professional financial advice specific to your circumstances.