The gig worker’s year-end tax checklist

For gig workers, December is not just the holiday rush — it is the last window to shape the tax bill before the year closes and the numbers become permanent. A short year-end checklist run in the final weeks can meaningfully lower what you owe, or at least eliminate April surprises. The key is knowing which moves still work after December 31 and which do not.

The checklist

1. Tally your year-to-date income across every platform and cash source.
2. Catch up your mileage log and gather expense receipts while the year is fresh.
3. Buy genuinely needed equipment before December 31 if you want the deduction this year.
4. Make retirement contributions — and open a Solo 401(k) before year-end if you plan to use one.
5. Pay your fourth-quarter estimated payment (due in January) or true up W-4 withholding.
6. Consider timing income: on the cash basis, delaying or accelerating an invoice shifts it between years.
7. Review deductions you may have missed — phone, home office, fees, health premiums.

Income timing

Most gig workers report on the cash basis, meaning income counts when received. That gives you a lever: in a high-income year, delaying an invoice until January pushes the income into next year; in a low-income year, collecting before December 31 pulls income forward while your rate is low. It is a modest tool, but on a big invoice it can move real tax between years.

Documents to gather

• Platform earnings summaries, downloaded before any account could close.
• Your mileage log and business-use percentage.
• Totals for each expense category, from your dedicated account.
• Any 1099s as they arrive in January, checked against your own records.

The bottom line: a year-end checklist is your last chance to shape the bill — tally income, finalize the mileage log, make retirement contributions (opening a Solo 401(k) by December 31), pay the Q4 estimate, and use income timing where it helps. Skip the spend-to-save trap, gather your documents early, and because a few of these moves are irreversible after year-end, run the plan by a preparer if the numbers are large.