Most investment performance conversations start with the wrong number. The return you see on your statement — the gross return, the benchmark comparison, the year-over-year percentage — is a pre-tax figure. It tells you how the portfolio performed before the IRS takes its share. For high-income clients, that share is not a rounding error. At a 39.6% marginal rate on short-term gains and 23.8% on long-term gains (including the net investment income tax), the difference between a pre-tax return and an after-tax return is the difference between a good outcome and a great one.
The portfolio that looks best on paper is not always the portfolio that leaves the most money in your hands. That distinction is the foundation of how we build and manage investments.
The Standard Model and Its Flaw
The standard model of investment management optimizes for pre-tax return. A portfolio is constructed to maximize expected return for a given level of risk, rebalanced to maintain target allocations, and evaluated against a benchmark. Tax is treated as an external cost — something that happens to the portfolio, not something that is engineered into it.
This model works reasonably well for tax-exempt accounts like IRAs and 401(k)s, where taxes are deferred or eliminated. It works poorly for taxable accounts, where every trade, every dividend, and every rebalancing decision has a tax consequence. And for clients with significant wealth in taxable accounts — which describes most of the business owners and high-income professionals we work with — the standard model leaves a meaningful amount of after-tax return on the table.
What Tax-Aware Portfolio Construction Actually Means
Tax-aware portfolio construction is not a single technique. It is a set of disciplines that are applied together, consistently, across the full relationship. Here is how we approach it:
Asset Location
Not all assets are taxed the same way, and not all accounts are taxed the same way. Tax-inefficient assets — those that generate ordinary income, short-term gains, or high turnover — belong in tax-sheltered accounts (traditional IRAs, 401(k)s, defined benefit plans). Tax-efficient assets — broad index funds, municipal bonds, long-term equity positions — belong in taxable accounts. When asset location is done correctly, the same portfolio produces a meaningfully higher after-tax return without changing the underlying risk or return profile. This is not a marginal improvement. For a client with $3 million split across taxable and tax-deferred accounts, proper asset location can add tens of thousands of dollars in after-tax return annually.
Factor-Based Construction
We build portfolios around documented return factors — value, profitability, size, and momentum — rather than chasing recent performance or paying active management fees for closet indexing. Factor tilts are calibrated to each client's time horizon, tax situation, and risk tolerance. This approach tends to produce lower portfolio turnover than actively managed strategies, which reduces the frequency of taxable events and allows gains to compound over longer holding periods.
Tax-Lot Management
Every position in a taxable account consists of individual tax lots — shares purchased at specific prices on specific dates. When we sell, we choose which lots to sell. Selecting the highest-cost lots first minimizes realized gains. Selecting lots held for more than a year converts short-term gains (taxed as ordinary income) into long-term gains (taxed at preferential rates). Selecting lots with embedded losses creates harvesting opportunities. Most custodians default to FIFO — first in, first out — which is rarely the most tax-efficient choice. We manage every lot deliberately.
Tax-Loss Harvesting as a Year-Round Discipline
Tax-loss harvesting is the practice of selling positions that have declined in value to realize a loss that can offset gains elsewhere in the portfolio — or, if losses exceed gains, up to $3,000 of ordinary income per year, with the remainder carried forward indefinitely. Done well, harvesting is a year-round discipline, not a December scramble. We monitor for harvesting opportunities continuously, replace sold positions with similar-but-not-identical securities to maintain market exposure (while respecting the wash-sale rule), and coordinate harvested losses with the broader tax plan to deploy them where they create the most value.
Rebalancing Without Unnecessary Taxable Events
Rebalancing is necessary to maintain a portfolio's intended risk profile, but every rebalancing trade in a taxable account has a tax cost. We minimize that cost by using new contributions and dividend reinvestment to rebalance toward target allocations before selling anything. When trades are necessary, we time them to maximize after-tax efficiency — harvesting losses in the same transaction where possible, and prioritizing long-term over short-term gain realization.
Concentrated Positions: A Special Case
Many of the clients we work with arrive with concentrated equity positions — a large block of a single stock from a business sale, years of RSU vesting in an employer's stock, or an inherited position with a low cost basis. These positions present a specific challenge: the embedded gain is often so large that selling outright would trigger a tax bill that exceeds the benefit of diversification.
We address concentrated positions through a structured diversification plan that sequences the tax cost over time. That might mean staged harvesting over several years, using exchange funds to diversify without triggering a sale, donating appreciated shares to a donor-advised fund to eliminate the gain entirely, or using a charitable remainder trust to convert the position into a diversified income stream. The right approach depends on the client's tax situation, income needs, and charitable intent — which is why it requires a plan, not a product.
The Integration Point
None of these disciplines exist in isolation. Asset location decisions affect which accounts are used for rebalancing. Harvesting decisions affect the tax plan for the year. Concentrated position strategies interact with estate planning and charitable giving. The reason we can execute all of them effectively is that we see the full picture — the investment portfolio, the tax return, the business structure, and the long-term plan — at the same time. That integration is not a feature we offer. It is the foundation of how we work.
Pre-tax return is what the market gives you. After-tax return is what planning gives you. The difference is where the real work happens.