Private Wealth Pathway · Transferring the Wealth

Cross-Border Estate Planning and Tax Issues for CFA Level III

Updated 9 October 2026 · Fact-checked

Cross-border estate planning decides which countries can tax a client's wealth at death or gift, and how double tax is relieved. You test domicile or residence, then asset situs, then apply a treaty with the credit or exemption method, and recommend structures that fit the client's goals.

Understand Cross-Border Estate Planning and Tax Issues

A client with ties to more than one country can face transfer tax in each. Each country claims taxing rights on a different basis. Your job is to find every claim, then reduce the overlap.

The first basis is the person. Many countries tax the worldwide assets of someone who is domiciled or resident there, and sometimes of the heir who is resident there. Domicile is the place a person treats as their permanent home, with intent to stay. Residence is usually a factual test, such as days spent in the country. A person can be resident in two countries but domiciled in one. Rules differ by country, so always use the definition given in the vignette.

The second basis is the asset. Situs is where an asset is legally located. Real property usually has situs where the land sits. Tangible assets sit where they are physically held. Shares are often located where the company is incorporated or registered. A non-resident, non-domiciled person is often taxed only on assets with situs in that country.

When two countries tax the same asset, double taxation results. Relief comes from two sources. A double tax treaty sets tie-breaker rules for domicile and says which country has the primary right to tax. Domestic law or the treaty then gives relief by the credit method or the exemption method. Under credit, the home country taxes worldwide assets and gives a credit for foreign tax paid, usually capped at the home tax on that asset. Under exemption, the home country excludes the foreign asset from its base. Treaties do not always exist or cover every tax, so gaps remain.

Planning links back to the client. Forced heirship, marital property regimes and different tax rates can conflict with the client's wishes. Advisers coordinate legal and tax specialists in each country. Typical steps are choosing where to hold assets, using trusts or foundations, gifting during life, and reviewing the plan when the client moves.

Key rules to remember

Credit method, home tax payable: Net home tax = Home tax on the asset − Foreign tax credit; Credit is usually limited to the lower of foreign tax paid and home tax on that asset. It cannot go below zero in the usual case.
Total tax under credit method: Total tax = Foreign tax + (Home tax − allowed credit); If foreign tax is higher than home tax, total equals the foreign tax. If lower, total equals the home tax.
Exemption method: Home taxable base = Worldwide assets − Foreign-situs exempt assets; Home country does not tax the exempt assets. Total tax is home tax on the remaining base plus foreign tax on the exempt assets.
Tax liability by connection: Domiciled or resident: worldwide assets. Non-resident: only assets with local situs; This is the usual pattern. Always confirm the country's stated rule in the question.
After-tax estate: Net estate = Gross estate − Total transfer taxes (all countries); Use this to compare structures and to show the heirs' net outcome.

How to solve Cross-Border Estate Planning and Tax Issues questions

Use this order for any cross-border estate question. It keeps your answer tied to facts and to the client's objectives.

1List the client's ties: citizenship, domicile, residence, and where heirs live. Use the definitions in the vignette.
2Decide each country's basis for taxing: worldwide for domiciled or resident persons, situs-only for others.
3Assign a situs to each asset: real property by location, tangibles by physical place, shares by registration.
4Check for a treaty. Apply its tie-breaker if two countries claim domicile, and note which tax it covers.
5Compute tax in each country, then apply the relief method: credit (cap at home tax on that asset) or exemption (remove the asset from the base).
6Add the taxes and find the net estate or total tax. Show each number.
7Link to the client's goals and constraints, then recommend a fix such as lifetime gifts, a trust, restructuring asset location or local advice.
8State the answer in the form the command word asks for.

Quickest way: Three-column table check

When to use it: Use when a vignette lists several assets in several countries and you have little time.

Draw three columns on scratch paper: asset, situs, tax by each country.
Fill the situs first. Tax follows the situs and the client's status.
Compute foreign tax first, then home tax.
Under credit, total tax on that asset = the higher of foreign tax and home tax, because the credit is capped at the home tax. This holds only when the credit is limited per asset to the home tax on that asset. Under exemption, total tax on the exempt asset = foreign tax only, and the home tax on the other assets is added separately. When the foreign rate is below the home rate, the exemption total is lower than the credit total. When the foreign rate is equal to or above the home rate, the two totals are the same.
Sum the column and check it against the gross estate before choosing an option.

Common mistakes in Cross-Border Estate Planning and Tax Issues

Treating domicile and residence as the same thing.
Both words describe where someone lives, so they feel interchangeable.
Fix: Domicile is permanent home with intent. Residence is usually a factual test. Use the vignette's definition and check which one each country's tax uses.
Allowing a foreign tax credit larger than the home tax on that asset.
Students subtract the full foreign tax without a cap.
Fix: Cap the credit at the lower of foreign tax paid and home tax on that asset, unless the question says otherwise. Excess foreign tax is not refunded.
Assigning situs by where the owner lives.
Students link all assets to the client's country.
Fix: Assign situs asset by asset: land by location, tangibles by physical place, shares by registration.
Assuming a treaty always removes double tax.
The word relief suggests full protection.
Fix: Check which taxes the treaty covers. Some treaties cover estate but not gift or inheritance taxes, and some countries have none. Say that residual double tax may remain.
Mixing up the credit and exemption methods.
Both reduce home tax, so the mechanics blur.
Fix: Credit: tax the asset at home, then deduct foreign tax. Exemption: do not tax the asset at home at all.
Giving tax answers with no link to the client.
The calculation feels like the whole question.
Fix: Finish with a recommendation tied to the client's objectives, such as heirs' location, liquidity needs or control, and name the constraint.

Worked examples

Example 1

Maria is domiciled in Country H, which taxes worldwide estates at a flat 30% and uses the credit method. She owns €2,000,000 of assets in H and a €1,000,000 property in Country F. F taxes real property of non-residents at 20%. Calculate the total estate tax.

Show the solution

Home tax on all assets: 30% × €3,000,000 = €900,000.
Foreign tax on the property: 20% × €1,000,000 = €200,000.
Home tax on the property alone: 30% × €1,000,000 = €300,000. The credit is the lower of €200,000 and €300,000, so €200,000.
Net home tax: €900,000 − €200,000 = €700,000.
Total tax: €700,000 + €200,000 = €900,000.

Answer: Total estate tax is €900,000. Because F's rate is lower than H's, the total equals the home country's tax on the whole estate (30% × €3,000,000 = €900,000).

Example 2

Using the same facts, Country H switches to the exemption method for foreign real property. Calculate the total tax and state which method gives the lower total for Maria's heirs.

Show the solution

Exclude the €1,000,000 property from H's base. H's base is €2,000,000.
Home tax: 30% × €2,000,000 = €600,000.
Foreign tax on the property: 20% × €1,000,000 = €200,000.
Total tax: €600,000 + €200,000 = €800,000.
Compare: credit gave €900,000 and exemption gives €800,000.

Answer: Total tax is €800,000, which is €100,000 lower than under the credit method. When the foreign rate is below the home rate, exemption gives the lower total. Here the foreign rate (20%) is below the home rate (30%). When the foreign rate is equal to or above the home rate, both methods give the same total, assuming a per-asset credit cap.

Exam tips

Read the command word. Calculate means show the numbers. Justify means give a reason tied to the client.
Show the credit cap explicitly. A correct number alone earns credit, but a visible step protects you if the number is wrong.
Use only the rule given in the vignette for domicile, situs and treaty coverage, even if you know a different real-world rule.
In a recommendation, name the client's objective and the constraint it solves, in one or two sentences per point.
Answer only the number of responses asked for, in the order given, because extra responses are not evaluated.

Cross-Border Estate Planning and Tax Issues in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Cross-Border Estate Planning and Tax Issues: frequently asked questions

What is the difference between domicile and residence for estate tax?

Domicile is the place a person treats as permanent home with intent to stay. Residence is usually a factual test such as time spent in a country. A person can be resident in two countries but domiciled in one. Use the definition each country applies.

How are foreign assets taxed in estate planning?

It depends on the client's status and the asset's situs. A domiciled or resident person is often taxed on worldwide assets. A non-resident is often taxed only on assets located in that country. Relief for double tax comes from a treaty or domestic credit or exemption rules.

How does the credit method work in a double tax treaty?

The home country taxes the asset, then reduces its tax by the foreign tax paid on that asset. The credit is usually capped at the home tax on that asset. If foreign tax is higher, the extra is generally not refunded.

What is situs and why does it matter?

Situs is the legal location of an asset. It decides which country can tax it when the owner is not domiciled or resident there. Real property usually follows its location, and shares often follow where the company is registered.