M06 · Module 6 of 11
Investing the rest
Once your accounts are funded in the right order and your equity comp is under control, the money still has to be invested. This module covers how to hold it: what to own, which account each holding belongs in, and how to keep taxes and fees from quietly eating your returns over decades.
What you’ll take away
- Tell asset allocation apart from asset location, and know why both decide your outcome
- See why broad, low-cost index funds beat stock-picking for almost everyone
- Recognize fees and expense ratios as a compounding drag, not a rounding error
- Understand direct indexing and how it turns an index into a tax tool
- Know how tax-loss harvesting works and where the wash-sale rule limits it
Allocation decides your returns, location decides how much you keep
Two separate decisions govern an investment portfolio, and people routinely collapse them into one.
Asset allocation is the mix of what you own: how much in stocks versus bonds, US versus international, large companies versus small. Allocation is the dominant driver of how your portfolio behaves. It sets your expected return and how much the balance swings in a bad year. Most of the work of investing well is choosing a sensible allocation and then leaving it alone.
Asset location is a different question. It asks which type of account holds each piece of that allocation. You typically have three tax treatments available: taxable brokerage accounts, tax-deferred accounts like a traditional 401(k) or IRA, and Roth accounts. Each taxes growth and withdrawals differently. For the account types themselves and how they are taxed, see the account types that asset location sorts across.
Here is why the distinction matters. Two investors can hold the identical allocation, say 70% stocks and 30% bonds, and end up with meaningfully different after-tax wealth purely because of where each asset sits. Allocation determines the pre-tax return. Location determines how much of that return you actually keep after a lifetime of tax drag. You control both, and treating location as an afterthought leaves money on the table every year you hold the portfolio.
The reason location has any effect is that different assets generate different kinds of taxable events. An asset that throws off a lot of currently-taxed income behaves very differently inside a tax-sheltered account than inside a taxable one. Sorting assets by that behavior is the whole game.
Putting the right assets in the right accounts
Start with how each account is taxed, then match assets to the treatment that wastes the least tax.
A taxable brokerage account taxes you as you go. Interest and non-qualified dividends are taxed at ordinary income rates each year. When you sell at a gain, you owe capital-gains tax. A tax-deferred account shields everything inside it from annual tax, but every dollar that eventually comes out is taxed as ordinary income. A Roth account also shields growth from annual tax, and qualified withdrawals come out entirely tax-free.
Now sort assets by the tax they generate.
Bonds and bond funds pay interest that is taxed as ordinary income every year, whether or not you want the cash. Held in a taxable account, that interest creates a yearly tax bill on income you are reinvesting anyway. Bonds therefore tend to belong in tax-deferred accounts, where the annual interest compounds untouched and the eventual ordinary-income tax matches how bond income would have been taxed regardless. Real estate investment trusts and other high-income holdings follow the same logic.
High-growth equity points the other way. Stock index funds throw off relatively little annual income, and most of their return arrives as price appreciation you do not pay tax on until you sell. That gain qualifies for lower long-term capital-gains rates, and if you never sell, you defer the tax indefinitely. The single best place for the assets you expect to grow the most is the Roth account, because all that growth comes out tax-free. Your highest-expected-return holdings generally belong in Roth space first, then in taxable, with bonds filling tax-deferred space.
A worked intuition: put bonds in the traditional 401(k), put your most aggressive stock fund in the Roth, and hold broad stock index funds in taxable where their low yield and deferred gains are already tax-friendly. The allocation across all three accounts can stay exactly where you want it. Location just decides which sleeve each piece lives in.
This gets complicated fast once you have several accounts with different balances, because the assets have to fit the space available. Working out the placement that minimizes lifetime tax drag across real balances is what the asset location optimizer is built to model. It shows you the framework applied to your own accounts; the decision itself is one to take to a CFP.
Why low fees beat picking winners
The case for broad index funds rests on two ideas that compound on each other: diversification and cost.
Diversification means owning many companies instead of a few. A single stock can go to zero. A fund holding the whole market cannot, because the failures are averaged against the survivors. A broad index fund buys hundreds or thousands of companies at once, so no single business failing wrecks your portfolio. You give up the chance of picking the one stock that triples, and in exchange you stop carrying the risk that your concentrated bet collapses. For most people building long-term wealth, removing the catastrophic outcome is worth far more than chasing the spectacular one. Diversifying out of a single large holding is its own discipline, covered in diversifying out of a concentrated single-stock position.
The harder truth is about stock-picking. Decades of evidence show that the large majority of professional fund managers fail to beat a simple index over long periods, after their fees are counted. These are full-time experts with research staff and they still lose to a fund that just buys everything. If they cannot reliably win, an individual picking stocks in their spare time is not likely to either. Markets price in public information quickly, so consistently finding mispriced stocks is extremely hard. Most attempts to beat the market underperform it.
That leads to the practical conclusion. Rather than trying to find winners, own the whole market cheaply and capture its return. A broad, low-cost index fund is the default that beats most active strategies precisely because it does not try to be clever and does not charge you for trying.
How fees quietly compound against you
Fees feel small because they are quoted as small numbers. An expense ratio is the annual percentage a fund charges to run itself, deducted automatically from the fund’s value. A fund might charge 0.03% a year; an actively managed fund might charge 0.75% or 1%. Stated that way, the difference sounds trivial.
It is not trivial, because the fee compounds against you for as long as you hold the fund. Every year, the percentage comes out of your entire balance, including all the growth from prior years. Over a few decades the gap between a 0.03% fund and a 1% fund can consume a large share of your total return. The fee is charged on money you never got to compound, so it costs you the growth on the growth.
The drag is silent. You never write a check; the money is removed from the fund’s value before you see a statement, so a high fee does not feel like a cost the way a bill does. That invisibility is exactly why it deserves attention. Two funds tracking the same index will deliver nearly the same gross return, and the cheaper one wins by almost precisely the fee difference, every year, forever. Checking the expense ratio before you buy is one of the highest-value habits in all of investing, and it takes ten seconds.
Direct indexing and harvesting losses on purpose
Direct indexing is a refinement of index investing for larger taxable accounts. Instead of buying one fund that holds the index, you hold the underlying stocks of the index directly, dozens or hundreds of individual positions, weighted to track the same benchmark. Your return roughly matches the index, the same as the fund would deliver. What changes is what you can do with the individual lots.
Two capabilities come from holding the names yourself.
First, customization. Because you own the individual stocks, you can tilt the holdings to your situation. Someone already carrying a large position in their employer’s stock can exclude that company and its close competitors from the index, so their broad portfolio is not doubling down on a risk they already hold in concentration.
Second, and more valuable, is loss harvesting at the individual-stock level. In any given year, even when the index as a whole is up, some of its component stocks are down. A single fund share shows you only one blended price, so a fund that is up overall gives you nothing to harvest. Holding the names directly means you can sell the specific stocks sitting at a loss, realize those losses for tax purposes, and immediately buy similar stocks to keep your market exposure intact. You capture tax losses in a year the overall market rose. Direct indexing turns ordinary index exposure into a steady source of harvestable losses, which is what makes it worth the added complexity.
Direct indexing carries real tradeoffs: more positions to track, potential trading costs, and complexity that only pays off above a certain account size. It is a tool for sizable taxable balances, not a default for everyone.
Tax-loss harvesting without tripping the wash-sale rule
Tax-loss harvesting is the practice of deliberately selling an investment that has dropped below what you paid, so you can use the loss on your tax return. The loss is real for tax purposes even though you immediately reinvest, because you stay in the market by buying something similar rather than identical.
A harvested loss does work in three places. It first offsets capital gains you realized elsewhere, including gains from selling a concentrated position or rebalancing. If your losses exceed your gains, you can deduct a limited amount of the excess against ordinary income each year, capped at $3,000 (2025 and 2026). Any loss beyond that carries forward to future years with no expiration, available to offset later gains or chip away at ordinary income year after year. Because these losses offset gains that would otherwise be taxed under the capital-gains and net investment income tax layers, harvesting is most valuable to high earners. For the layers it works against, see the capital-gains and NIIT layers harvesting works against.
A point people miss: harvesting defers tax rather than erasing it. Selling at a loss and rebuying lowers your cost basis in the new position, so a larger gain waits down the road. The benefit is the time value of paying tax later, plus the chance to offset ordinary income now at a higher rate than the capital-gains rate you may pay later. Done well it is a genuine edge. It is not free money.
One rule constrains all of this: the wash-sale rule. If you sell a security at a loss and buy the same or a “substantially identical” security within 30 days before or after the sale, the loss is disallowed. The window is 30 days on each side, a 61-day span centered on the sale. The point of the rule is to stop you from claiming a loss while never really leaving the position. You cannot sell a fund at a loss on Monday and buy the identical fund back on Tuesday and keep the deduction.
You work within the rule by replacing the sold holding with something similar but not substantially identical. Sell one broad US stock index fund at a loss and buy a different broad US stock fund that tracks a different index, and you stay invested while the loss counts. The replacement keeps your allocation intact during the waiting period. Two cautions matter: the rule reaches across all your accounts, including IRAs and a spouse’s accounts, so a repurchase in a retirement account can disallow a loss taken in your taxable account; and automatic dividend reinvestment can trigger an accidental wash sale by buying shares inside the window. Sizing the actual benefit of a harvesting program for your situation is what the tax-loss harvesting benefit estimator models.
Putting it together
Investing the rest of your money comes down to a few durable decisions. Choose a sensible asset allocation and hold it through the noise, because allocation drives your returns. Place each asset in the account type that wastes the least tax, because location decides how much of those returns you keep. Own the market through broad index funds rather than picking stocks, since the evidence says picking loses after costs. Watch expense ratios, because a fee you never see compounds against you for decades. And in a large taxable account, use direct indexing and tax-loss harvesting to convert ordinary market exposure into realized losses, staying clear of the wash-sale rule as you go. Each piece is mechanical once you understand it. Sized to your own balances, the choices add up to real money over a lifetime.
Connections
- the account types that asset location sorts across
- diversifying out of a concentrated single-stock position
- the capital-gains and NIIT layers harvesting works against
- asset location optimizer
- tax-loss harvesting benefit estimator
This module explains how these strategies work. For what to do in your own situation, the platform hands off to a CFP.