Start with the rate you actually pay
A high-income California owner can face combined marginal rates north of 50% on ordinary income, with long-term capital gains and qualified dividends taxed far more gently — plus the 3.8% net investment income tax on top. That spread between ordinary and capital rates is the raw material of tax-efficient investing: the goal is to push as much of the portfolio's return as possible into the gently-taxed categories, and to time the rest deliberately.
Asset location: the free lunch most portfolios skip
Asset allocation decides what you own; asset location decides which account each piece lives in. Tax-inefficient assets — taxable bonds, REITs, high-turnover strategies — belong in tax-deferred accounts where their ordinary-income distributions are sheltered. Broad equity index funds, with low turnover and capital-gains treatment, belong in taxable accounts. Roth space, the most valuable real estate, holds the highest-expected-growth assets. Same portfolio, same risk, lower lifetime tax — implemented once and maintained at every rebalance. This is standing procedure in our investment management.
Turnover is a tax decision
Every sale in a taxable account is a taxable event, which makes fund selection a tax decision: low-turnover index funds and ETFs distribute little; actively traded funds hand you someone else's gains every December. It also makes rebalancing technique matter — using new cash flows and tax-deferred accounts to rebalance first, and realizing taxable gains only when the policy genuinely requires it.
Harvest losses when markets hand them to you
Volatile years leave individual positions underwater even when the portfolio is fine. Selling those positions banks a capital loss — usable against gains now or carried forward indefinitely — while the proceeds move immediately into a similar (not substantially identical) holding, so market exposure never lapses. The wash-sale rule and state quirks make execution matter; the IRS covers the mechanics under credits and deductions. Harvested systematically across a decade, losses become a meaningful reserve against the year you sell a property, a concentrated position — or the business.
Charitable intent deserves structure
Owners who give should almost never give cash. Donating appreciated shares held over a year deducts the full market value and erases the embedded gain. Bunching several years of giving into a donor-advised fund in a high-income year — a bonus year, a sale year — concentrates the deduction where it's worth the most while the giving itself stays on schedule. In the run-up to a business sale, charitable structure gets even more powerful, and even more deadline-sensitive.
Coordinate with the return, not after it
Every technique above depends on the household's actual bracket, which the portfolio manager can only guess at — unless the CPA is in the room. Realized gains, estimated payments, entity income, and the year's plan contributions belong in one November conversation, not two January surprises. That coordination is the reason Xel Wealth Management was built beside the tax planning practice at Xel Advisors, and it is the quiet majority of what "tax-efficient investing" means in practice.
Roth conversions belong in the owner's toolkit
Owner income is lumpy, and the lean years are worth money. A down year, a reinvestment-heavy year, or the gap between selling the company and starting Social Security can drop the household into brackets it will never see again — exactly the window to convert traditional IRA dollars to Roth at a discount, permanently. The conversion adds to this year's income, so sizing it is bracket arithmetic best done in the fall with the CPA's projection open. Done across several low years, conversions shrink future required minimum distributions and build the tax-free pool that makes the eventual withdrawal strategy flexible.
A year-end checklist
- Confirm realized gains and losses to date, and harvest what the market has offered.
- Run the bracket projection with the CPA; size any Roth conversion to fill — not breach — the target bracket.
- Fund the qualified plan to this year's design, and confirm any cash-balance contribution before the deadline.
- Make charitable gifts in appreciated shares, or fund the donor-advised fund if this is a bunching year.
- Check that rebalancing used tax-advantaged accounts and new cash first.
What not to do
Don't let the tax tail wag the investment dog — a bad investment with a good tax story is still a bad investment. Don't hold a concentrated position forever just to avoid a gain; the market can take back more than the tax ever would. And treat aggressive shelters with the skepticism they've earned. The durable wins are boring: location, turnover, harvesting, charitable structure, and a written plan that keeps all four running every year.
Before you act: model the expected benefit, the deadline, the documentation required, and the effect on cash. Tax and retirement rules are fact-specific and change every year — confirm any strategy for the current year with your advisor and CPA before implementing it.