Most small business owners think about taxes twice a year. Once when quarterly payments are due. Once when the return is filed.
That’s not enough — and it’s costing people money in ways that are entirely preventable.
A mid-year check-in isn’t a complicated process. It’s a focused conversation about where things stand and what, if anything, should change before December 31. Here’s why it matters and what it actually covers.
The Problem With Waiting Until Year End
By the time most business owners have a planning conversation with their accountant, it’s November at the earliest — and often January, which means the year is already over.
November is workable. You still have two months to make moves. January is too late for almost everything.
A mid-year review in June or July gives you six months. That’s enough time to adjust your quarterly payments, make a meaningful retirement contribution, reconsider a major purchase, or restructure how you’re paying yourself. All of those things have a December 31 deadline that mid-year planning can actually hit.
What a Mid-Year Check-In Actually Covers
It’s not a full accounting engagement. It’s a focused review of a few specific things.
Where your income is tracking.
By June or July you have six months of real data. Is your revenue higher than you expected at the start of the year? Lower? The answer determines whether your quarterly estimated payments are on track — or whether you’re building toward a surprise in April.
If you’re having a significantly better year than expected and your quarterly payments haven’t changed, you may be underpaying. The IRS charges an underpayment penalty — currently the federal short-term rate plus 3 percent — on the shortfall. Adjusting your Q3 and Q4 payments based on current-year projections prevents that penalty.
If you’re having a worse year than expected, you may be overpaying — giving the IRS money you don’t actually owe yet. Reducing your remaining payments keeps that cash in your business where it belongs.
Your business structure.
If your net profit is growing this year and you’re still operating as a sole proprietor — that conversation needs to happen now, not in January.
The S-Corp election for the current tax year has a March 15 deadline. But the preparation for that election — setting up payroll, establishing a reasonable salary, understanding the compliance requirements — takes time. The mid-year check-in is when you identify that the election makes sense and start the process, not when you actually file the election.
Retirement contributions.
Are you on track to contribute what you’re eligible to contribute? A solo 401k allows up to $72,000 in combined contributions in 2026 for owners under 50. Most business owners contribute a fraction of what they’re eligible for — not because they can’t afford to, but because nobody flagged the opportunity before it closed.
Mid-year is when you look at your projected net profit, calculate your maximum eligible contribution, and decide whether to fund it. The money has to be earned before you can contribute it — which means knowing the opportunity exists while you still have income coming in.
Major purchases on the horizon.
If you’re planning to buy equipment, a vehicle, or software before year end, the timing of that purchase relative to December 31 matters. Section 179 allows full expensing of qualifying purchases in the year they’re placed in service. A purchase made December 30 gets the same deduction as one made in January — but a purchase made January 2 gets nothing for the prior year.
The mid-year conversation surfaces these decisions while there’s time to plan around them.
Halfway through the year is the right moment to see where your tax bill is heading. Book a mid-year review.
Who Should Be Having This Conversation
Not every taxpayer needs a mid-year review. A W-2 employee with a simple return and consistent income doesn’t have much to discuss mid-year.
The business owners who benefit most are the ones with variable income, self-employment tax obligations, retirement plan decisions to make, or any meaningful financial complexity. That includes sole proprietors, LLCs, S-Corp owners, landlords, freelancers with multiple income streams, and anyone whose income this year is likely to be meaningfully different from last year.
How to Make It Happen
Most accounting firms don’t automatically schedule mid-year reviews for every client. The volume of work during filing season makes proactive outreach to every client throughout the year difficult.
The clients who get mid-year reviews are the ones who ask for them. Send your accountant an email in June or July and ask for a 30-minute check-in. Tell them you want to review your year-to-date income, confirm your quarterly payments are on track, and discuss any planning moves worth making before year end.
That’s a reasonable ask and a good accountant will have useful things to say.
The decisions that reduce your tax bill almost always happen before December 31 — not after. That's why mid-year planning conversations are a regular part of how we work with small business clients.