Year-End Tax Planning Starts Now, Not in December

As of Oct. 11, there are 81 days left in the 2026 tax year. That sounds like plenty, and it is, until you list what a typical year-end move requires: a retirement account that has to be opened and funded, equipment that has to arrive and be in use, a client who has to be invoiced on a particular date. Each of those has a lead time, and December is when the lead times collide with holiday schedules.

Freelancers also have an advantage employees do not. Most self-employed people are cash-basis taxpayers: income counts in the year you receive it, and expenses count in the year you pay them. That gives you real control over which year a dollar lands in, for about eleven more weeks. This guide is the dated plan, plus an honest look at what the moves are worth, which is less than most year-end advice implies.

First, work out which direction you are moving

Every tactic below points one way or the other. If 2026 will be your higher-income year, you want income later and deductions sooner. If 2026 is the lighter year, the reverse. You cannot choose well without a profit estimate, so start with the full-year projection method and have a number before you touch anything else.

The reason direction matters less than people expect is on the right edge of this table. Self-employment tax is a flat 14.1% of profit ($141 per $1,000, which is 15.3% applied to 92.35% of profit) all the way to the $184,500 Social Security wage base. Only the income tax layer changes with your bracket.

2026 net profit	Top bracket reached	Next $1,000 of profit costs	Total federal rate on all profit
$30,000	10%	$216	17.3%
$50,000	12%	$231	19.5%
$70,000	12%	$231	20.5%
$96,000	22%	$305	22.0%

Single filer, 2026 standard deduction of $16,100, full qualified business income (QBI) deduction, no state tax, no other income. Brackets are from IRS Rev. Proc. 2025-32. The marginal figures are lower than the bracket alone suggests because the QBI deduction gives back a fifth of each extra dollar of income tax, and half of the self-employment tax is deductible. Your own numbers will differ, but notice the shape: moving from the lowest row to the highest changes the cost of a marginal $1,000 by only $89. Timing helps most when a move carries you across the 12% to 22% line, which for a single filer happens at about $50,400 of taxable income.

Andre's plan, with the 2027 side counted

Andre is a freelance video editor, single, with $96,000 of projected 2026 profit and a federal bill of $21,145. He expects a slower 2027, about $60,000, because a retainer client is leaving. That makes 2026 the year to pull deductions in and push income out. He makes three moves.

That last line is the part most year-end articles skip. The $4,000 invoice does not vanish; it becomes 2027 income, where on a $60,000 year it costs $922. Net benefit of the deferral: $297. The camera works the same way in reverse: the deduction moves from 2027, where it would have been worth $692, to 2026, where it is worth $915. Net benefit: $223. Add them and the bracket gap is worth about $520 on $7,000 of shifted dollars.

The $8,000 retirement deferral is also not free money, because the withdrawals will be taxed later. Whether that trade favors you depends on your future bracket, which is what the Roth versus traditional comparison works through. Contributing is still a good use of cash. Just file it under saving for retirement, not under reducing a tax bill.

So why bother? Because $520 is still real, and because the other benefits are not small: Andre holds $1,219 of tax money for a year, and his 2026 return gets simpler to fund. But when someone sells a December scramble as a way to slash your bill, run it through this arithmetic first. Moving a dollar from a 30.5% year into a 23.1% year saves 7.4 cents.

Two moves that look smarter than they are

The dated checklist, October through January

This month

• Reconcile your books through Sept. 30 and write down year-to-date profit. If your expenses live in receipts and card statements, a tracker such as the free expense tracker at Self Employment Toolkit (from the same publisher as this site) will sort them into Schedule C categories faster than a spreadsheet.
• Run the full-year projection and decide your direction: income later and deductions sooner, or the reverse.
• If you want a solo 401(k) for 2026, choose a provider now. The step-by-step setup guide covers the paperwork, and a new plan with no employees can generally be adopted as late as April 15, 2027, though not every provider supports that, so confirm with yours.
• Check your quarterly payments against the projection. The final installment is due Friday, Jan. 15, 2027, and the quarterly tax guide explains how to size it.

November

• Order the equipment you were already planning to buy. Depreciation and expensing rules generally require the item to be placed in service by Dec. 31, not just ordered, so a January delivery does not count for 2026. (Section 179 expensing will get its own guide.)
• If you pay health insurance premiums yourself, open enrollment on most marketplaces begins Nov. 1. The premiums can be deductible above the line for the self-employed, up to your net profit, but they lower income tax only, not self-employment tax.
• If you paid any contractor $2,000 or more in 2026, collect a W-9 now so the 1099-NEC at the start of next year is a formality.
• Follow up on unpaid invoices from earlier in the year. If you want them paid in 2026, ask in November, not on Dec. 29.

December

• Pay the bills you owe anyway. A credit card charge generally counts on the date you charge it, even if you pay the card in January.
• Prepaying a 12-month software subscription is generally deductible in 2026 if the benefit does not run past 12 months after it starts. Prepaying two years is not.
• Send year-end invoices on the dates you decided in October, with terms you would offer any client.
• Fund the retirement account, and keep the deposit confirmation with your tax records.
• Dec. 31 is a Thursday. Anything you want counted in 2026 should be paid or charged by Wednesday, Dec. 30, to leave a day of slack.

January

• Redo the projection with a closed year, and send the Jan. 15 installment sized to the real number.
• Sort receipts and invoices by month while the year is still fresh.

What to do this week

Write three lines on paper: your projected 2026 profit, your guess for 2027, and which direction that points. Then pick the one move on the checklist with the longest lead time (usually the retirement account or the equipment order) and start it before the end of the month. Everything else can wait for November or December, but those two cannot be hurried.

A CPA or enrolled agent is worth a call if your 2026 income is far from 2025, if you are near a bracket edge or the QBI deduction limits, or if you are considering an entity change. This article is educational and is not personal tax advice.