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The Hidden Tax Story Behind Dividing Investments in Divorce

The Hidden Tax Story Behind Dividing Investments in Divorce

The Part No One Explains About Dividing Investments

When you’re going through a divorce, most of the focus is on what you’re getting.

How much of the investment account.
Which assets go to whom.
Whether the division feels fair.

But there’s a quieter question that often gets missed: What will this actually cost you later?

While most assets are divided without immediate tax consequences, the real tax story doesn’t show up until months, or even years, after the divorce is finalized. And by then, it’s often too late to fix.

First, the Good News: No Immediate Taxes

Let’s start with something reassuring. In most cases, dividing investment accounts as part of a divorce settlement does not trigger taxes right away. You’re not writing a check to the IRS just because assets are being split.

But here’s the important distinction: The tax impact is delayed, not eliminated. It shows up later, when you start using those assets.

A Quick Note on Retirement Accounts (Because They’re Different)

Before we go deeper, it’s helpful to understand that not all investment accounts work the same way.

Retirement accounts like IRAs, 401(k)s, and 403(b)s are generally more straightforward in divorce.

Why? Because you can typically buy and sell investments inside the account without triggering taxes. Furthermore, when you take money out of these accounts, the full amount is taxed and is not dependent on how much you paid for the asset.

So in most cases, it doesn’t matter much which specific investments you receive in a retirement account.

Where Things Get More Complicated: Taxable Investment Accounts

Now let’s talk about the accounts that require much more care: Taxable investment accounts (also known as brokerage accounts)

These are non-retirement accounts where taxes are triggered when you sell the investments. And this is where a hidden layer of complexity comes in.

Why Two “Equal” Accounts May Not Be Equal at All

At first glance, dividing a brokerage account seems simple.

If there’s $1 million, each person gets $500,000.

Fair… right? Not necessarily.

Because what really matters isn’t just the value of the investments, it’s what you’ll owe in taxes when you eventually sell them.

The Key Concept (Without Getting Too Technical)

Every investment has something called a cost basis (purchase price) what it was originally bought for.

When you sell it later:

  • If it’s worth more than that purchase price → you pay capital gains tax
  • If it’s close to that purchase price → the tax is much lower

Most people fall into a 15%–20% capital gains tax range.

So depending on the history of the investments, two portfolios that look identical today can have very different future tax bills.


A Simple Example

Let’s say two people each receive $500,000 in investments.

  • Person A receives investments that were purchased at $450,000
  • Person B receives investments that were purchased at $200,000

On paper? Equal.

But when they sell:

  • Person A pays tax on ~$50,000 of gains
  • Person B pays tax on ~$300,000 of gains

That’s a significant difference in real, spendable money.

The Overlooked Detail That Causes Problems

In many divorce settlements, assets are divided by value, but not by their tax characteristics.

Even more surprising: The financial institution handling the transfer is not focused on fairness in a divorce context.

They are simply processing a transfer form. Which means:

  • The underlying tax history of the investments may not be split evenly
  • The default process may not be proportional to each spouse
  • And even when instructions are given there can sometimes be inconsistencies in how transfers are carried out.

This is an issue that can arise more often than many people realize.

What Thoughtful Division Looks Like

When brokerage accounts are divided carefully, two things should be considered:

1. The Investments Themselves

Often, it makes sense for both parties to receive the same types of holdings in roughly equal proportions This helps ensure that neither person is taking on more market risk than the other.

2. The Future Tax Exposure

Just as important, if not more so is making sure the embedded tax liability is evenly shared and neither person unknowingly takes on a larger future tax burden This is where many settlements unintentionally become uneven.

Why This Matters More Than You Think

This isn’t about being overly technical. It’s about making sure that what looks fair today actually feels fair later.

In some cases:

  • One spouse unknowingly inherits significantly higher taxes
  • The issue isn’t discovered until years after the divorce
  • And by then, there’s no practical way to rebalance it

A Final Thought

Divorce is already a time filled with decisions, emotions, and complexity. You shouldn’t also have to deal with surprises down the road, especially ones that could have been avoided with the right guidance.

When you understand how these pieces fit together, you can move forward with greater clarity and a better understanding of your financial picture.

Next Step

If you’re in the process of dividing investment accounts, or want a second set of eyes on what you’ve been offered – this is exactly the kind of detail that deserves careful review.

We help clients navigate these decisions in a clear and practical way, with a focus on understanding both the agreement and its longer-term implications.

We invite you to schedule a Clarity First™ call with us.

This material is for informational purposes only and should not be construed as personalized investment or tax advice. Tax outcomes and financial strategies will vary based on individual circumstances. Purposeful Wealth Advisors® is a DBA of Keating Financial Advisory Services, Inc. (KFAS), and investment advisory services are offered through KFAS pursuant to a written agreement; please refer to KFAS’s Form ADV Part 2A for additional information regarding services, fees, and conflicts of interest. All investing involves risk, including the possible loss of principal, and there is no guarantee that any strategy will achieve its intended results.

Beth Kraszewski recipient of