A client walks in the first week of December with a folder of statements and one question: how much can we still do? Most years, the honest answer is not much. The moves that actually move the needle on a high-net-worth tax bill, shifting income across years, restructuring an entity, funding a charitable vehicle, take months to set up properly, not days. Waiting until the holidays to think about taxes is the single most expensive habit we see among successful individuals and business owners in Brookings and across South Dakota, Kingsbury, and Moody counties.
This isn't a listicle of tricks to try before December 31. It's a case for rethinking when tax planning happens at all.
The December scramble doesn't save you money
By the time a calendar year is nearly over, most of the income has already happened. You can't retroactively change how a business sale was structured in March, or undo a large capital gain realized in June. Tax Topic 409 from the IRS lays out how capital gains and losses (opens in new tab) are taxed, and the rate you pay often depends on decisions made well before the sale, not after. Once the transaction is done, the tax treatment is largely locked in.
What's left in December is damage control: maxing out a retirement contribution, bunching a few deductions, maybe a last-minute equipment purchase. Useful, but small. These moves shave a few thousand dollars off a bill that proactive planning could have reduced by tens of thousands, sometimes more, if the groundwork had started in February.
Wealthy individuals have more moving pieces, and more to lose
The more income sources you have, the more timing options exist, and the more it costs to ignore them. A farmer with grain sale proceeds, equipment depreciation, and land appreciation is managing a different tax picture than someone with a single W-2. An agribusiness operator running multiple entities, or a service business owner drawing both salary and distributions, has decisions to make in March, June, and September that shape what April looks like the following year.
We see this constantly with ag clients across the Midwest. A grain sale that could have been split across two tax years gets sold all at once because nobody looked at the whole picture until it was too late to change course. A piece of farmland gets sold without any planning around installment treatment. These aren't mistakes born of carelessness. They happen because tax planning got treated as a once-a-year event tied to a filing deadline instead of a year-round conversation.
Multi-year income timing beats one-time deductions
The biggest dollar savings for high-net-worth individuals almost never come from a single clever deduction. They come from spreading income across tax years to stay out of the highest brackets, or timing a large gain to land in a year with offsetting losses or lower income elsewhere.
For a business owner selling a farm, a building, or a company, that means modeling the sale eighteen months out, not eighteen days out. For someone with concentrated stock or a large IRA, it means deciding in the spring whether a Roth conversion this year makes sense based on where income is likely to land by December, not guessing after the fact. None of this works if the first conversation with your CPA happens after Thanksgiving.
Entity structure decisions need months, not days
How a farm, agribusiness, or service business is structured, sole proprietorship, partnership, S corp, or something else, affects self-employment tax, payroll requirements, and how much flexibility you have to time income. Changing structure isn't a form you file in December. It typically involves a new entity, new payroll setup, and state filings that need lead time to be done correctly and to actually hold up.
We've worked with agribusiness operators who saved five figures a year in self-employment tax simply by moving to an S corporation election, but only because the change was planned early enough in the year to be in place before most of the income arrived. Wait until fall, and the tax year is already mostly baked.
Two strategies farmers and ag operators leave on the table
Two of the most overlooked opportunities for agriculture clients aren't exotic. They're just easy to miss without a CPA looking for them throughout the year.
The research and development credit isn't only for tech companies. Farmers experimenting with new seed varieties, irrigation techniques, soil amendments, or feed formulations may qualify for an R&D credit against activities most operators think of as just part of running the farm. Claiming it requires documenting the experimentation as it happens, which means it has to be tracked during the growing season, not reconstructed from memory the following April.
The excess fertility deduction is similarly missed. When farmland is purchased, a portion of the price may reflect fertilizer and nutrients already in the soil, above baseline levels, and that portion can potentially be deducted rather than capitalized into the land basis. Identifying and documenting that excess fertility takes a soil analysis and a conversation with your CPA close to the purchase date, not a scramble at filing time.
Both strategies share the same requirement: someone has to be looking for them before the year closes out, not after.
What a year-round relationship actually gives you
TruCount CPA PC was founded in 2009, and Kristy and Brandi have each been with the firm for 13 years, bringing 51 years of combined accounting experience to clients across Brookings, Kingsbury, and Moody counties, plus western Minnesota and Logan and Shelby counties in Ohio. Julie Underwood, CPA, leads the firm as a member of the AICPA and the South Dakota Society of CPAs, and the firm is active in the Brookings Area Chamber of Commerce.
That matters here because year-round planning only works if someone is actually watching your numbers all year, not just reviewing them once. Clients on our outsourced accounting relationships get a secure online platform where we can both see real-time financials, so a big grain sale or a business decision in July shows up in a planning conversation in July, not a surprise in April. Services are bundled for one fixed monthly fee, so there's no bill shock for a mid-year strategy call, and no reason to put off a conversation because you're worried what it will cost.
That's the real difference between a CPA who files your return and one who acts as CFO-level insight for your business at a fraction of what a full-time hire would cost. One reacts to what already happened. The other helps you decide what happens next, while there's still time to change it.
For individuals and families weighing bigger financial decisions alongside taxes, similar timing logic applies elsewhere. Whether you're figuring out how much insurance coverage you actually need as your net worth grows, planning for long-term care costs before you need them, or running the real numbers on buying versus renting a home, the pattern holds: the earlier you plan, the more options you have.
The AICPA's tax resources and guidance (opens in new tab) reflect the same theme across the profession: strategic tax work is a year-round discipline, not a once-a-year filing task.
Common Questions
When should high-net-worth tax planning actually start each year? Ideally by the first quarter, so income timing, entity elections, and retirement or charitable strategies can be put in place before most of the year's income has already occurred. Waiting until Q4 limits you to smaller, reactive moves.
Is the R&D credit really available to farmers? Yes, in many cases. Farmers experimenting with new seed varieties, soil amendments, feed formulations, or irrigation methods may qualify, but the experimentation needs to be documented as it happens during the growing season rather than reconstructed later.
What is the excess fertility deduction and who qualifies? It's a deduction for the portion of a farmland purchase price attributable to fertilizer and nutrients already in the soil above baseline levels, rather than the land itself. It typically requires a soil analysis close to the purchase date and applies to farmland buyers, not general real estate purchases.
Does proactive planning cost more than waiting until tax season? Not when it's structured as a bundled, fixed monthly relationship rather than hourly billing. The savings from earlier, well-timed decisions typically outweigh the planning cost many times over, especially for business owners with multiple income sources.
If your tax planning has been a once-a-year scramble instead of a year-round strategy, get in touch with our team and let's start the conversation before the numbers are already locked in.
