Mel Gibson's International Tax Strategy: Lessons for Everyday Expats

When you think of Mel Gibson, international tax planning probably isn't the first thing that comes to mind. But between his dual citizenship, significant foreign property holdings, and recent comments about potentially relocating to Costa Rica, Gibson's situation offers a masterclass in cross-border tax considerations that apply far beyond Hollywood.

Let's break down what I'd be thinking about if Mel Gibson walked into my office as a client - and more importantly, how these same principles apply to anyone living or investing internationally.

The Dual Citizenship Question

One detail that surprised me when researching Gibson's background: he's actually a dual US-Australian citizen. He grew up in New York but also spent formative years in Australia, maintaining citizenship in both countries.

This is one of the most common questions I receive from clients: "I'm a US citizen, but I'm also a French citizen" (or Australian, or Canadian). "Does that mean I'm getting taxed twice?"

Here's the reality: The IRS doesn't care where else you're a citizen. They only care that you're a US citizen.

The United States operates on a citizenship-based taxation model, meaning if you're a US citizen, you're taxed on your worldwide income regardless of where you live or what other citizenships you hold. Your second (or third) passport doesn't change this fundamental obligation.

The flip side is equally straightforward. Most other countries - including Australia - tax based on residency, not citizenship. If you're a dual US-Australian citizen living in Australia, you'll be an Australian tax resident and pay Australian tax on your worldwide income. Australia doesn't give you a pass just because you're living there as a citizen rather than as a foreign resident.

Similarly, if you're a dual citizen living in the United States, Australia generally won't tax you at all (except potentially on Australian-source income) because you're not an Australian tax resident.

The key takeaway: Citizenship matters to the US. Residency matters to almost everyone else.

Structuring Foreign Real Estate: The Costa Rica Property

Gibson owns approximately 400 acres in the Nicoya Peninsula of Guanacaste, Costa Rica, featuring multiple houses throughout the property. He listed this estate a few years ago for close to $30 million - though it didn't sell and he still owns it today.

While I don't know exactly how Gibson structured this investment, here's what I'd be recommending if he were my client.

Layer One: Foreign Entity for Liability Protection

At minimum, you want ownership through a foreign entity - Costa Rica's equivalent of an LLC. This provides liability protection under local law. If something happens on the property, your other assets aren't directly exposed.

For Costa Rica specifically, the most common structure is a Sociedad de Responsabilidad Limitada (SRL) or Sociedad Anónima (SA). The choice between these depends on factors like number of owners, desired privacy, and transfer flexibility.

Layer Two: Privacy Through Trust Structures

For high-profile individuals (or anyone valuing privacy), Costa Rica offers foundation structures that can hold the entity. Panama has similar trust structures that are even more robust.

These structures prevent someone from simply looking up who owns the property. The foundation or trust appears as the owner, with the beneficial ownership protected from public records.

I'm not a foreign attorney, so in these situations, I connect clients with specialists in the relevant country - Costa Rica, Panama, or wherever they're investing. These local experts set up the proper company and trust structure to optimize liability protection, privacy, and local taxation.

Layer Three: US Estate Planning

Here's where things get critical for high-net-worth individuals. The current US estate tax exemption is approximately $13.6 million per person (2024). A $30 million property alone exceeds this threshold.

Without proper planning, estates over the exemption amount face a 40% federal estate tax. For someone like Gibson with substantial worldwide assets, this isn't just about one property - it's about protecting the entire estate.

The solution typically involves US-based trust structures. I'm not an estate planning attorney, so I coordinate with specialists who design trusts that:

• Provide flexibility for asset distribution after death
• Minimize what ultimately lands in the taxable estate
• Avoid the 40% estate tax through legitimate planning techniques

For everyday investors: You might not have a $30 million property, but these same principles apply. If you're buying real estate in Mexico, Portugal, or anywhere else, you need:

1. Local entity structure for liability and local tax optimization
2. Proper ownership documentation and legal setup
3. Coordination with your US tax planning to avoid surprises
4. Consideration of estate planning implications if your total worldwide assets are approaching exemption thresholds

The Potential Move to Costa Rica

Gibson appeared on the Joe Rogan podcast following the devastating Malibu fires in January 2025, which destroyed his home. When asked about his plans, he mentioned the possibility of relocating to his Costa Rica property.

If he actually makes this move, it opens interesting tax planning opportunities - though perhaps not as dramatic as some might expect.

Costa Rica's Territorial Tax System

Costa Rica operates a territorial tax system, meaning you only pay Costa Rican tax on income earned within Costa Rica. If Gibson became a Costa Rican tax resident while earning royalties from films, director's fees, and investment income from US sources, none of that would be taxable in Costa Rica.

This is a significant advantage compared to countries with worldwide taxation systems.

But the US Still Wants Its Share

Here's the reality check: citizenship-based taxation means Gibson would still file US tax returns and report his worldwide income, regardless of where he lives.

For Costa Rican-source income that is taxable there, he would receive a foreign tax credit in the US, preventing double taxation on that same income. The US system is designed to give credit for foreign taxes paid, at least on foreign-source income.

The Foreign Earned Income Exclusion

For 2024, US citizens living abroad can exclude up to $126,500 of foreign earned income from US taxation (adjusted annually for inflation). To qualify, you must:

• Have a tax home in a foreign country
• Meet either the Bona Fide Residence Test (full calendar year abroad) or Physical Presence Test (330 full days in any 12-month period)

For someone with Gibson's income level, $126,500 is barely noticeable - a drop in the bucket. But for regular Americans working abroad, this exclusion is often the single most valuable tax benefit available.

Example: A software developer earning $100,000 while living in Costa Rica could potentially exclude the entire amount from US taxation while paying zero Costa Rican tax (since the income is from US clients). That's legitimate tax planning that saves thousands.

Key Principles That Apply to Everyone

Whether you're protecting a $30 million estate or planning your first international property purchase, these principles remain constant:

1. Structure Matters From Day One

Don't buy foreign real estate in your personal name without considering the implications. Work with local counsel to set up proper entities, and coordinate with your US tax advisor to understand the filing requirements.

2. Privacy and Liability Are Separate From Taxes

Foreign trusts and foundations can provide excellent privacy and liability protection, but they come with US tax reporting requirements. Form 3520 and related filings are complex and carry harsh penalties for errors. Don't let the foreign attorney tell you there are "no US tax implications" - there usually are.

3. Dual Citizenship Doesn't Mean Double Taxation

The tax treaty network and foreign tax credit system generally prevent paying full tax twice on the same income. But you need to understand which country has primary taxing rights on which income streams.

4. Territorial Tax Systems Create Opportunities

Countries like Costa Rica, Panama, Singapore, and Hong Kong only tax locally-sourced income. Combined with the Foreign Earned Income Exclusion and foreign tax credits, Americans can legally minimize their tax burden while living abroad.

5. Estate Planning Isn't Just for the Ultra-Wealthy

If your worldwide assets (including foreign real estate) are approaching $13 million, you need estate planning now. Don't wait until you're over the threshold.

The Reality of International Tax Planning

Mel Gibson's situation illustrates something I see constantly: international tax planning isn't just for celebrities and ultra-high-net-worth individuals. The same structures, principles, and strategies scale to everyday situations.

The American software developer buying a condo in Portugal faces the same fundamental questions:

• How should I structure ownership?
• What are my filing requirements?
• How do I avoid double taxation?
• What happens for estate planning purposes?

The numbers are different, but the analysis is remarkably similar.

What I'd Actually Do as Gibson's Accountant

If Mel Gibson came to me today, here's my action plan:

Immediate Review:

• Audit current structure of Costa Rica property
• Verify all US reporting compliance (Forms 5471, 3520, 8938, FBAR)
• Review estate planning in light of current asset values

Strategic Planning:

• Coordinate with Costa Rican counsel on optimal local structure
• Engage estate planning attorney for US trust optimization
• Model tax implications of potential Costa Rica residency
• Develop multi-year tax projection under various scenarios

Ongoing Compliance:

• Annual coordination between US and foreign tax filings
• Regular estate planning reviews as laws change
• Proactive planning for any major transactions or moves

For Regular Clients:

The same process applies, just scaled appropriately. A $300,000 condo in Mexico requires the same thoughtful approach as a $30 million Costa Rican estate - the principles don't change.

Final Thoughts

International tax planning isn't about finding loopholes or hiding income. It's about understanding the legitimate tools available and using them appropriately to avoid paying taxes twice on the same income, protect your assets, and ensure compliance with increasingly complex reporting requirements.

Whether you're Mel Gibson or just an American thinking about buying property abroad, the fundamental questions remain the same. The difference is simply the scale and complexity of the solutions.