The Agent's Year-End Tax Timeline: October to January

Most year-end tax advice for agents shows up in the second week of December, which is roughly when half of it has already stopped being actionable. The moves that actually change your April are spread across four months, and the earliest ones matter most.

Here is the timeline. Nothing in it takes long. What each item needs is to happen in its own month.

October — look at the number

Everything downstream depends on knowing where you actually are, and October is early enough to still do something about it.

Project net profit for the year. Commission income received to date, minus categorized expenses, plus whatever is realistically closing before December 31. Not gross commission — net profit, which is what you are taxed on.

Check your cap. If you have capped, or will before year-end, every remaining closing is worth substantially more in the pocket than the ones earlier in the year — and produces substantially more taxable profit. Agents who cap in the summer and keep reserving a flat percentage of gross end the year short.

Compare against the safe harbor. Add up what you have paid in estimated tax so far and compare it against 100% of last year’s total tax — 110% if your prior-year AGI was over $150,000. If you are behind, you have two payment dates left to fix it rather than one. The math is here.

Decide the shape of the year. This is the only month where you can genuinely still steer. If this year is unusually strong and next year looks ordinary, accelerating deductions and deferring what income you legitimately can is worth real money. If this year is weak, the reverse. That decision drives everything in November and December, and it cannot be made without the projection above.

November — the deadlines that expire quietly

Retirement, and the call worth making. This is the item most likely to be worth thousands and most likely to be missed, because the deadlines differ by plan type in a way nobody announces:

• A SEP-IRA can be established and funded up to your filing deadline including extensions. It is the forgiving option — you can discover in June that you owe more than expected and still act.
• A solo 401(k) is stricter. If you already have one, the employee deferral election generally has to be in place by December 31. Recent law gives sole proprietors additional room in a plan’s first year.

The interaction between those rules is genuinely fiddly, and it is the difference between a five-figure deduction and a shrug. One call to your CPA in November, with your profit projection in hand, is the highest-return twenty minutes of the year.

Equipment, if you need equipment. A laptop, a camera body, a vehicle under the actual-expense method. The rule that catches people is placed in service — the asset has to be available for use in your business by December 31, not merely ordered or paid for. Ordering on December 28 with January delivery buys you next year’s deduction. Buy it in November if you were going to buy it, and do not buy it if you were not: a deduction returns your marginal rate on the dollar, never the whole dollar.

Line up W-9s. Every transaction coordinator, showing assistant, stager, and photographer you paid directly this year. Collect the forms now, while people are reachable and remember you. The reporting threshold rose to $2,000 for payments made on or after January 1, 2026, so fewer of these will need a 1099 than in past years — but you cannot tell which until you have the totals, and a W-9 you did not need costs nothing.

December — the small, dated things

Prepay, if the projection says so. Dues, marketing commitments, software renewals, next year’s MLS fees. Paid before December 31, deducted this year. Only worth doing if this year’s rate is higher than next year’s expected rate — otherwise you have moved a deduction to where it is worth less.

Client gifts, inside the cap. $25 per recipient per year, a limit that has not moved since 1962. Branded items under $4 with your name permanently affixed are excluded from it, as are promotional items for general distribution. A $200 closing gift still produces a $25 deduction; plan the gesture on its own merits and do not expect the tax code to fund it.

Understand what you cannot do with income. Cash-basis taxpayers report income when it is received or made available. A commission check sitting uncashed in your desk on December 31 is this year’s income — the constructive receipt doctrine exists precisely to close that door. What you can legitimately influence is when a transaction closes and when the brokerage disburses, and both are real business decisions with consequences well beyond the tax.

December 31: photograph the odometer. Ten seconds. It is the number your entire vehicle deduction is measured against, and it is unrecoverable the moment the year turns. If you did not take one in January either, take one now anyway — a year-end reading plus your service records beats nothing.

Close the books on the year’s expenses while December is still fresh. Any transaction still sitting uncategorized is one whose business purpose you will be guessing at in March.

January — file, send, hand off

January 15, 2027: the Q4 estimated payment for the 2026 tax year. This is the last chance to affect the underpayment calculation for a year that is already over.

January 31: 1099-NECs to recipients and to the IRS for contractors you paid directly above the threshold.

Collect what is coming to you. Your brokerage’s 1099-NEC, plus any from referral partners. Check the box 1 figure against your own records — and note whether your brokerage reports gross commission or your net split, because that determines what belongs on line 1 and what you are entitled to deduct on line 10. It is the same convention every year, but it changes when you change brokerages.

Assemble the handoff. What a CPA actually wants:

1. Income summary, with the 1099s attached
2. Expenses by Schedule C category, not by merchant
3. Mileage total with the two odometer readings
4. Home office square footage, if you claim it
5. Asset purchases with dates placed in service
6. Estimated payments made, with dates
7. A note on anything unusual — a brokerage change, a bad-debt commission, a state you worked in but do not live in

Hand that over in January and your CPA does tax work. Hand over a bank export and they do bookkeeping, bill you for it, and do it from worse information than you had at the time.

The version that takes no effort

The entire timeline above assumes one thing: that your expenses are categorized and your miles are logged as the year happens. If they are, October’s projection takes ten minutes and January’s handoff is an export.

If they are not, none of this is available. You cannot project a number you do not have, cannot evaluate a retirement contribution without knowing your profit, and cannot decide whether to prepay anything. The year-end moves are not the work. They are the payoff for fifteen minutes on a Friday, every Friday.

ListingLedger keeps that running number current — categorized income and expenses, logged miles at the right per-period rate, cap progress, and a set-aside estimate — and produces the January handoff as a single export with everything on the line it belongs to. The line-by-line guide covers what goes where, and the recordkeeping guide covers what makes each entry hold up. The rules reference lists everything inside that January export and what each page is there to prove.