What Proactive Tax Planning Actually Looks Like

Most business owners have a filing relationship, not a planning one

The typical pattern goes like this: documents go to the CPA in February or March, the return gets filed, a bill arrives, and the next contact happens the following February. For a simple W-2 employee, that might be fine. For a business owner, it leaves most of the real work undone.

Tax planning — the kind that actually reduces what you pay — happens before the year ends, not after. By the time the return is being prepared, the decisions that mattered most have already been made. Usually by default.

What a filing-only relationship looks like

A filing relationship has a clear shape. The CPA receives what happened, organizes it correctly, and reports it accurately. That work has real value — accuracy matters, and errors create problems. But filing accurately is different from planning well.

In a filing-only relationship, the owner typically:

• Learns the tax bill in February or March, after it’s too late to change it
• Makes quarterly estimates based on last year’s numbers, not the current year’s trajectory
• Misses year-end retirement contribution windows because nobody flagged them
• Makes entity structure, salary, and distribution decisions without tax modeling
• Finds out about a planning opportunity after it has expired

What a planning relationship looks like

A planning relationship has a different rhythm. The CPA initiates contact — not just responds to it. The conversations happen while decisions can still be influenced.

In practice, a real planning relationship typically includes:

• A Q1 reviewafter estimates are filed — confirming the current year’s income trajectory and whether the payment plan still makes sense
• A mid-year check-in once six months of real numbers exist — adjusting estimates if revenue has shifted, identifying deductions to capture before year-end
• A year-end planning callin October or November — when there’s still time to make retirement contributions, accelerate deductions, time distributions, or defer income
• Responsive advice on in-year decisions — when the owner is thinking about a hire, a purchase, a distribution, or a structural change, the CPA weighs in before it happens

The moves that require a planning relationship

Some of the highest-value tax decisions in a business owner’s year are time-sensitive. They cannot be made retroactively. A CPA who only looks backward cannot help with them.

• Solo 401(k) or SEP-IRA contributions — must be set up and funded within the tax year (or by the extension deadline for some plan types). A filing-only CPA may mention them in the return, but by then the contribution limit may already be lost.
• S-corp reasonable compensation decisions — the split between salary and distributions affects both payroll taxes and the qualified business income deduction. This needs to be set early in the year and reviewed mid-year.
• Income timing — in years where income is unusually high or unusually low, timing invoices, distributions, and asset sales can shift significant amounts between tax years.
• Year-end deduction acceleration — equipment purchases, prepaid expenses, and charitable contributions can often be timed to land in a high-income year. This requires knowing the income picture before year-end.

How to tell which kind of relationship you have

The clearest signal is whether your CPA has ever contacted you during the year with a specific recommendation — without you asking first.

If the answer is no, you likely have a filing relationship. That doesn’t mean your CPA is doing anything wrong. Filing relationships are common and often priced accordingly. But it does mean the planning work either isn’t being done, or it’s being left to you.

A second signal: does your CPA know what your business revenue looks like mid-year? If not, they cannot be doing mid-year planning. A planning CPA asks for that information, or has access to it.

What this typically costs to skip

It varies by situation, but for a profitable S-corp owner with $300,000 to $1,000,000 in business income, the combination of missed retirement contributions, suboptimal salary/distribution splits, and late deduction decisions can easily represent $10,000 to $30,000 per year in preventable tax. The math compounds over time.

A planning relationship costs more than a filing relationship. For most owners with real complexity, the cost difference is small relative to the tax savings available when planning actually happens.