Estate planning for
blended families

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Fay Nkosi

Fiduciary and Tax Specialist

Blended families introduce unique estate planning considerations that standard wills often fail to address. Without careful planning, competing expectations can lead to unintended outcomes – or worse, disputes that could have been avoided. A well-structured estate plan helps to reduce ambiguity, protect relationships and ensure your intentions are upheld.

Estate planning in blended families presents unique challenges, particularly when there are children from both previous and current marriages. Further complexities include beneficiaries who live abroad, offshore asset structures, or the long-term care of a dependant with special needs.

The traditional will approach of years past may have worked for simpler estates or family dynamics. But in a globalised world, where blended families are spread across borders and wealth spans multiple jurisdictions, a more thoughtful, tailored strategy is essential.

Blended family challenges

One of the most common estate planning challenges in blended families is ensuring that all parties – for example, a surviving spouse and children from prior relationships – are treated fairly, without confusion or delay. Too often, conflict arises from ambiguity.

An outdated will is a common issue. Following divorce, many individuals fail to revise their estate plans, leaving provisions that no longer reflect their circumstances. The result can be a will that still names an ex-spouse, omits new family members or ignores the realities of changed financial structures.

Even when intentions are clear, they may not be legally enforceable without the correct planning tools, particularly when dealing with asset distribution between stepchildren and biological children.

Key considerations include:

  • Updating wills and beneficiary designations after remarriage or the birth of additional children
  • Making use of trusts to balance the financial needs of a spouse and protect assets for children from previous relationships
  • Ensuring liquidity in the estate to avoid the forced sale of key assets, especially if beneficiaries include minors or dependants.

Ultimately, estate planning for blended families is about removing uncertainty – and leaving no room for assumptions.

Dependants with special needs

Where a child or beneficiary has special needs, additional provisions should be made to ensure continuity of care.

A special trust established under South African law is the most appropriate vehicle in such cases. Unlike a standard inter vivos trust, a special trust offers favourable tax treatment. It also prevents assets from being misused while safeguarding the beneficiary’s long-term well-being.

Offshore assets: jurisdiction matters

As asset ownership increasingly extends beyond South Africa, it’s important to consider how foreign jurisdictions will interpret and implement a South African will.

While a single, worldwide will is legally valid, it may not always be practical. A separate offshore will, prepared in accordance with the laws of the relevant jurisdiction, can significantly streamline the estate administration process.

Beneficiaries living abroad

When heirs live outside South Africa, their tax status becomes an important factor in estate planning. A common misunderstanding is that physical emigration automatically ends tax residency. In reality, residency is determined by various factors – SARS considers aspects such as where the individual has permanent ties and the long-term intention to reside.

For heirs who have not formally ceased tax residency, South Africa may continue to tax:

  • Worldwide income
  • Capital gains
  • Inheritance receipts, if not planned correctly.

For those who have completed tax emigration through SARS, the exit charge on deemed disposal of worldwide assets can present a one-off tax consequence.

A well-structured estate plan anticipates these scenarios, ensuring that heirs are not exposed to avoidable tax liabilities or administrative delays when receiving an inheritance.

Structure is protection

Estate planning for blended families requires more than documentation – it demands considered, tailored structuring. Without it, families may face legal delays, unnecessary tax exposure, or conflict between surviving members.

The most effective plans are:

  • Up to date with family circumstances and legal frameworks
  • Structured across jurisdictions, where applicable
  • Designed to protect vulnerable beneficiaries, such as dependants with special needs
  • Built to anticipate tax implications for heirs who live abroad.

At Sanlam Private Wealth, we have all the necessary skills and expertise to assist you in drawing up your estate plan. If you’d like further information, please contact Fay Nkosi at fayn@privatewealth.sanlam.co.za.

Expert advice is crucial in dealing with cross-border estate and tax planning.

Stanley Broun has spent 13 years in Fiduciary And Tax.

Stanley Broun

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