🚨 Does your business need a mid-year tax tune-up?

The Basics

📊 Mid-year tax check-in: Are you on track?

Most business owners set their estimated tax payments exactly once — in January, based on some blend of last year’s numbers and this year’s optimism — and then don’t think about them again until their accountant asks pointed questions in March. July is the correction window, and it’s a good one, because you now have six real months of data instead of a hopeful guess.

Start with the number that actually matters: year-to-date net income, not revenue. Compare it to what you projected in January. Being ahead of the plan is good news with a catch — your payments were sized for a smaller year, and you may not have set aside enough. Falling behind the plan means you might be overpaying, and that’s cash that could be doing something more useful than sitting with the IRS until refund season.

The check-in itself has three parts:

You’re not aiming for precision here. You’re aiming for direction: refund, break-even, or bill. That answer tells you whether your September 15 payment needs adjusting, which is exactly what we cover in this week’s Deep Dive.

It takes about an hour. Skipping it can cost you a lot more than an hour come April.

👉 Check out the IRS guide to estimated taxes

The Strategy

📈 How to read your year-to-date P&L for tax purposes

Most business owners glance at their P&L the way they glance at a gas gauge — quick check, general vibe, keep driving. For tax purposes, that glance needs to become an actual read, because the P&L is quietly telling you exactly where your tax bill is headed, if you know where to look.

Start at the top, then ignore it. Total revenue is your baseline, not your taxable income, and treating it as the same thing is the most common mid-year planning mistake out there.

Move to your expenses and split them mentally into two buckets: the ones that reduce taxable income dollar-for-dollar (rent, software, supplies, marketing — the ordinary stuff) and the ones with special handling (equipment, which may be depreciated over time or expensed immediately under Section 179, and owner draws, which are not an expense at all no matter how it feels when the money leaves your account).

That last one trips up more new business owners than anything else on this list. If you’re an LLC or sole proprietor, what you pay yourself is a draw, not a salary. It shows up as cash leaving your account, but it never shows up as a deduction. Your taxable income is your net profit before you take anything out — not after.

From there, look at net income, and adjust it for tax purposes: that figure, after depreciation, is generally your closest stand-in for taxable profit before self-employment tax and above-the-line deductions.

Then annualize it. $52,000 in net income through June roughly doubles to a $104,000 full-year estimate — assuming your business isn’t heavily seasonal. If it is, weight the projection toward your historically stronger or weaker stretches instead of a flat doubling.

That annualized number is the single most useful figure you’ll produce all year for tax planning. It’s a real estimate of what you’ll owe, built from six months of actual performance instead of a January guess.

👉 Learn more about what’s considered taxable income

The Deep Dive

⚖️ Adjusting estimated tax payments mid-year without triggering penalties

Here’s something a lot of business owners don’t realize: you’re allowed to change your mind. The number you paid in April and June is not permanent, and the IRS has built-in mechanisms specifically for adjusting it.

The concept to know is safe harbor. You generally avoid an underpayment penalty if, by year-end, you’ve paid in at least 90% of your current year’s tax liability, or 100% of last year’s liability (110% if your prior-year AGI was over $150,000). Hit either threshold and penalties generally don’t apply, even if you owe a balance in April.

This is exactly why the mid-year check-in matters. If your P&L shows you’re tracking well ahead of last year, your prior safe harbor number might now sit below what you’ll actually owe — but you can still legally pay less than your full projected liability, as long as you settle the rest by April 15. If you’re tracking behind last year, you may already be over-safe, and lowering your payment frees up cash now instead of waiting on a refund next spring.

If your income doesn’t arrive evenly — common for seasonal businesses, consultants with lumpy contracts, or anyone with a slow start and a strong finish — the standard quarterly method can penalize you unfairly, since it assumes equal income every period. The fix is the annualized income installment method on Schedule AI of Form 2210, which matches each quarter’s required payment to that quarter’s actual income, so a slow Q1 followed by a strong Q3 doesn’t get flagged as an underpayment.

In practice, a mid-year adjustment looks like this: recalculate your projected full-year liability using your annualized YTD income. Compare it to what you’ve already paid in Q1 and Q2. Split the remaining liability across your September 15 and January 15 payments — front-load if you’re behind, trim if you’re ahead. If you’re using the annualized method, file Schedule AI with your return to document why your payments varied.

One caution: adjust based on booked income, not the deal you’re excited about that hasn’t closed yet. Send the IRS money based on optimism, and you may not see it again until next spring.

Mid-year is the one point in the tax calendar where you have real data and still have time to act on it. Don’t waste the window.

👉 Read more about underpayment penalties

Freebie

📥 The mid-year tax tune-up kit

This week’s free download: the Mid-Year Tax Tune-Up Kit.

Built for business owners who want a structured way to actually run the check-in instead of just meaning to.

What’s inside:

Fifteen minutes with this kit and you’ll know more about your tax position than most business owners know at any point before their accountant tells them.

📥 Download the Mid-Year Tax Tune-Up Kit →