Most small business owners think about taxes twice a year: when the estimated payment is due and when the return is filed. The problem is that by the time your return is being prepared in March, almost every decision that shapes this year's tax bill has already been made. Planning happens in the fourth quarter — and the window closes on December 31.
Late October is the sweet spot. You have ten months of real numbers to work from, and still enough time to act on what they show. Here are six moves worth reviewing before year-end.
1. Get an accurate year-to-date profit number first
Every planning decision starts with one question: how much did the business actually earn this year? If your books are three months behind or full of uncategorized transactions, any plan built on them is a guess. Before you meet with your CPA:
- Reconcile every bank and credit card account through the end of September or October.
- Clear out the "uncategorized" and "ask my accountant" buckets so expenses land in the right accounts.
- Project the last two or three months from your normal run rate plus any big known items, like a large contract or a planned purchase.
Our Q4 bookkeeping checklist walks through the full cleanup if your books need more than a quick tune-up.
2. Review the timing of income and expenses
If your business reports on the cash method, the date money moves generally decides which tax year it belongs to. That gives you some legitimate flexibility at year-end:
- Paying expenses you already owe before December 31 — supplies, professional fees, a repair — may pull the deduction into this year.
- Timing customer invoicing for work finishing in late December can shift when income is received.
- Prepaying far-future expenses has limits, so do not assume a twelve-month prepayment is fully deductible now.
Accrual-method businesses follow different rules, because income and expenses are generally recorded when earned or incurred, not when cash moves. If you are not sure which method you use, our guide to cash vs. accrual accounting explains the difference.
3. Plan equipment and vehicle purchases deliberately
Buying equipment, computers, or a vehicle before year-end may let you deduct some or all of the cost this year rather than spreading it over several years. But the deduction is a reason to buy something you already need, not a reason to buy something you don't. Spending a dollar to save a fraction of a dollar in tax still leaves you poorer. Also remember that, in general, the asset must be placed in service — not just ordered — by December 31 to count for this year.
Not sure your year-to-date numbers are solid enough to plan around? We will review your books before your year-end tax meeting as part of a free 30-minute consultation.
4. Look at retirement contributions
Retirement plans are one of the most effective ways for owners to reduce taxable income while building savings. Some plans must be set up before year-end to take contributions for the year, while others can be opened and funded later. Ask your CPA which plan fits your business and what the setup deadline is — before December, not in April.
5. True up your estimated tax payments
If your profit came in higher than expected, your quarterly payments may be short. The final federal estimated payment for the year is generally due in mid-January, and catching an underpayment now lets you plan the cash instead of being surprised. Our post on quarterly estimated taxes covers how those payments work.
6. Review owner pay and payroll before the last pay run
For S corporation owners, the salary you pay yourself, year-end bonuses, and certain benefits must run through payroll before the final pay date of the year. Reviewing them in December is often too late to make clean changes, so put owner compensation on the agenda now.
A real-world example
A landscaping company owner assumed he had a modest year because his bank balance felt tight. When we caught up his books in October, the picture was different: strong spring and summer revenue, with much of the cash tied up in a new truck loan and equipment deposits. His actual profit was well above last year's, and his estimated payments had been based on last year's numbers.
With accurate figures in hand, his CPA had real options: confirm a planned mower purchase would be in service before year-end, open a retirement plan before the deadline, and increase his January estimated payment so April held no surprise. None of that would have been possible if the cleanup had waited until tax season.
Confirm the specifics with your CPA
Tax rules — deduction limits, depreciation options, retirement plan deadlines, and estimated payment safe harbors — change over time and depend on your entity type and situation. This post covers general principles, not tax advice. Confirm the specifics with your CPA before you act on any of these moves.
How Shieldbearer Ledger Co. helps
Year-end planning only works when the numbers underneath it are right. We keep your books reconciled and categorized every month, so by October you have a reliable year-to-date profit and loss instead of a best guess. Before your year-end tax meeting, we can prepare a clean P&L, balance sheet, and fixed asset list for your CPA, flag large expenses and purchases, and help you see where your estimated payments stand. You walk into the conversation with options — and leave with a plan, not a surprise.