What Is Asset Location in a Retirement Portfolio?
Most portfolio conversations focus on which investments to pick. A separate, less discussed question is which account should hold each one — and that question has its own name.
The short answer
Asset location refers to deciding which types of investments go into which types of accounts — taxable, tax-deferred, or tax-free — based on how each account is taxed, rather than deciding what to invest in at all. It’s distinct from asset allocation, which is about how a portfolio is divided among stocks, bonds, and other categories. Two people can hold an identical overall mix of investments and still end up with different after-tax outcomes depending on which account holds which piece.
The three account types involved
Most retirement savers eventually have access to some combination of account types, each taxed differently:
- Taxable accounts. A standard brokerage account offers no special tax treatment; interest, dividends, and realized gains are generally taxable in the year they occur.
- Tax-deferred accounts. A traditional 401(k) or IRA allows investments to grow without annual taxation, with taxes generally due when money is withdrawn in retirement.
- Tax-free accounts. A Roth-style account also grows without annual taxation, but qualified withdrawals in retirement are generally not taxed at all, since contributions were typically made with after-tax dollars.
Because each account type is taxed differently, the same investment held in different accounts can end up producing very different after-tax results over time.
Why the type of investment matters here
Different investments generate income in different ways, and that’s the core of the asset-location question. Investments that produce a lot of taxable annual income — through interest payments or frequent dividend distributions — tend to create a yearly tax bill when held in a taxable account, since that income is generally reportable whether or not it’s spent. Investments that are expected to grow mainly through price appreciation, with fewer taxable distributions along the way, tend to generate less of a drag in a taxable account, because gains generally aren’t taxed until sold. This is one reason some savers think about placing higher-income-generating investments inside tax-advantaged accounts and placing lower-turnover, growth-oriented investments in taxable accounts, though the right split depends heavily on someone’s specific mix, time horizon, and tax situation.
Where it fits alongside asset allocation
Asset location doesn’t replace the more fundamental decision of how a portfolio is divided among asset classes; it’s layered on top of it. A person still needs to decide their overall mix of stocks, bonds, and other holdings based on their goals and time horizon before thinking about which account should hold which piece. In that sense, asset location is closer to a coordination problem — arranging the same overall portfolio across accounts more efficiently — than a decision about what to buy or sell.
A common point of confusion
It’s easy to assume that Roth and traditional tax-advantaged accounts should always hold the same kinds of investments, since both defer or eliminate annual taxation. But because a Roth account’s growth is generally never taxed while a traditional account’s withdrawals are, some people weigh placing investments with the highest expected long-term growth inside a Roth account specifically, so that growth is realized tax-free rather than eventually taxed on withdrawal. This distinction between the two account types, not just tax-deferred versus taxable, is often the part that gets overlooked.
What to weigh
Asset location can meaningfully affect after-tax outcomes over a long investing horizon, but it’s a secondary consideration layered on top of overall diversification and goals, not a substitute for them. Because tax rules for each account type are set by the government and can change, the details of how asset location plays out depend on current rules and individual circumstances.