Asset Location

You can run the exact same portfolio and still pay very different taxes. Asset location is the behind-the-scenes move that can quietly boost after-tax returns without taking more risk.

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Key numbers

~54%Combined rate on interest income (ordinary income + NIIT + CA)
~37%Combined rate on long-term capital gains (federal + NIIT + CA)
~37%California taxes all capital gains as ordinary income (no preferential LTCG rate)
0%Tax on growth inside Roth accounts (forever)
0%Tax on growth inside traditional 401(k) until withdrawal
Foreign tax creditOnly available in taxable accounts, not inside retirement accounts

What asset location is

You've already decided what to invest in. Asset location is about deciding where to hold it.

The idea is simple. Different investments generate different kinds of tax events. Some generate interest income, taxed at the highest rates. Some generate dividends or capital gains, taxed at lower rates. Some generate almost no current income at all. Meanwhile, different accounts have different tax treatments — tax-deferred, tax-free, or fully taxable.

The framework

The goal is to match tax-inefficient assets with tax-sheltered accounts, and leave tax-efficient assets in taxable accounts where they generate the least damage.

Hold in taxable accounts:

  • Broad market stock index funds (low turnover, qualified dividends, you control when gains are realized)
  • Municipal bonds (already tax-exempt; no benefit to sheltering them)
  • Individual stocks you plan to hold long-term
  • International equity funds (so you can claim the foreign tax credit, which only works in taxable accounts)

Hold in tax-deferred accounts (traditional 401(k) or IRA):

  • Bonds and bond funds (interest is taxed at ordinary rates; defer that)
  • REITs (dividends taxed as ordinary income)
  • High-turnover active funds
  • TIPS (phantom income issue; shelter it)

Hold in tax-free accounts (Roth 401(k) or Roth IRA):

  • Your highest expected return assets — small-cap funds, emerging markets, anything you expect to compound aggressively over decades
  • Assets you want to pass to heirs tax-free

The logic: inside a Roth, growth is tax-free forever. That benefit is most valuable on assets with the highest expected growth. Inside a traditional 401(k), you're deferring taxes — so shelter income that would otherwise be taxed at 54%, like bond interest. In the taxable account, hold assets that produce the fewest taxable events and qualify for preferential rates when they do.

This is especially clear when you look at the numbers. A bond fund yielding 5% in a taxable account costs roughly 2.7% per year in taxes on that interest. The same bond fund inside the 401(k) defers all of that. Over 20 years, that's a meaningful drag compounded out. Meanwhile, an index fund in the taxable account may generate very little annual tax — most of the return comes from unrealized appreciation you control.

Asset location doesn't require complicated rebalancing or restructuring your holdings. It's mostly a setup decision — put the right things in the right buckets from the start, and then leave them there.

Educational purposes only. This is general information and is not tax, legal, or investment advice.