Tax Tools to Use
Thoughtfully structured tax planning can return several dollars in tax savings for every dollar spent. Life would be simple if tax rules were unambiguous, but tax rules, like other areas of law, are far from clear. Simply learning rules represents little more than accumulating trivia. Understanding how to use a handful of core tools is what actually moves the needle.
Why Organizational Form Matters
To optimize returns, tax represents only one cost that must be considered. Venture-backed start-ups are one example where this issue can be illustrated. Venture capital funds are typically organized as limited partnerships, owned by the individuals and entities that have contributed capital. At first glance, you might expect the portfolio companies — the underlying start-ups — to be organized as flow-through entities, so that losses could offset profits from other investments or income. However, it is common for VC-backed start-ups to be C corporations. Why?
Organizational form impacts both tax treatment and non-tax considerations. Most start-ups lose money in their early years. An important non-tax consideration that drives organizational form is the type of funding the start-up needs and the demands and preferences of those providing capital. Another important consideration is whether the owners intend to keep the business long term, or whether they plan to sell — and what that exit strategy might be.
Choices will be influenced by your investment horizon as well as three tax parameters: personal tax rates on ordinary income, corporate-level tax rates, and shareholder-level taxes on returns from corporate shares.
To illustrate the nature of these differences, let's review some of the tax and non-tax benefits.
1. Tax-Favored Treatment
Taxing authorities around the world grant favorable treatment to a variety of activities. Common examples include charitable organizations, educational institutions, energy investments, research and development, agriculture, productive equipment, foreign export activities, retirement savings vehicles, and entrepreneurial risk-taking. Our tax system uses these preferences both to redistribute wealth and to subsidize economic activity it wants to encourage.
2. Alternatives — The Logic of Tax Arbitrage
Investment returns are taxed quite differently across investment alternatives, and that difference is what makes tax arbitrage possible. "Tax arbitrage" means earning a relatively high after-tax rate of return by investing through a tax-favored form, financed at after-tax cost by borrowing through a different form. Investment returns are sensitive to these alternatives.
3. Organizational Form
Identical production and investment strategies can be undertaken through a variety of different legal organizational forms, each taxed differently. Some forms dominate others for a given purpose. The availability of alternative forms and alternative investment projects — each taxed differently — creates an opportunity to reduce taxes materially through legitimate structuring.
4. Restrictions and Frictions
Transaction costs in the marketplace make certain tax planning strategies costly. Restrictions imposed by taxing authorities can also prevent taxpayers from using arbitrage techniques that reduce tax in socially undesirable ways. These frictions and restrictions are exactly what makes the returns from good tax planning valuable — and, once a strategy is implemented, it may be too costly to reverse as circumstances and the rules themselves change.
5. Uncertainty in a Post-OBBBA World
Uncertainty about future cash flows makes investments risky. Combine that uncertainty with inflation and a progressive tax system, and some taxpayers become more risk-averse than they would otherwise be. If you were indifferent to risk between two alternatives, you'd choose whichever offered the higher expected pre-tax profit, but our progressive rate structure changes that calculus dramatically.
The One Big Beautiful Bill Act (OBBBA), enacted in 2025, made many individual tax brackets and the enlarged standard deduction permanent — but several of its most client-favorable provisions, including the raised SALT deduction cap and the new deductions for tips, overtime, and seniors, are written to expire within the next few years. "Permanent" doesn't mean immune from a future Congress facing renewed deficit pressure. Plan as though today's favorable rules are on loan, not owned outright.
6. Planning at the Margin
With sunset dates already built into current law, and real uncertainty about what a future Congress will do when those provisions come up for renewal, adaptability, reversibility, and the ability to insure against adverse change matter more than ever. Statutory rates differ across taxpayers, across time, across organizational and investment forms, and across economic activities. The challenge is to maximize after-tax returns net of non-tax costs, given the history of the decisions that brought you to where you are today.
7. Adaptability
Most plans cannot be reversed without excessive cost. Adaptive tax planning is designed to minimize the cost of being caught in the wrong position when circumstances change unexpectedly. Given the uncertain profitability of investments and future marginal tax rates, adaptability can be a moving target. Two things, in particular, can change your tax status over time: how taxing authorities and courts actually interpret the law, and what new legislation actually gets enacted.
8. Additional Complexities
Quantifying the impact of possible legislative change matters — but only alongside a clear-eyed understanding of the non-tax differences between your options. These are the realistic, practical complications that any sound tax strategy has to work through.
The Learned Hand Rule
Self-interest means taxpayers pay no more tax than they believe they must. Remember Helvering v. Gregory, 69 F.2d 809, 810 (2d Cir. 1934), aff'd, 293 U.S. 465 (1935). Judge Learned Hand put it best:
"Any one may so arrange his affairs that his taxes shall be as low as possible; he is not bound to choose that pattern which will best pay the Treasury; there is not even a patriotic duty to increase one's taxes."
It is precisely this behavior that gives tax policy planners so much leverage as a tool for achieving social policy goals. Social goals get achieved when the tax rules subsidize activities that benefit society more than they benefit the individuals directly engaging in them.
Tax planning itself is a tax-favored activity: the cost of good planning is deductible, and the savings it produces are tax-exempt. The higher your marginal rate, the higher your returns.
Be prepared — know the rules you're planning around today have expiration dates.