You drove for a few months. Then you took a salaried job, or the numbers stopped working, or you simply had enough — and you stopped. The apps are deleted, the magnetic phone mount is in a drawer, and as far as you are concerned that chapter is closed.
It is not closed until April. A part-year of self-employment creates exactly the same filing obligations as a full one, and it comes with two specific traps that full-year drivers never hit. Here is the whole list, in the order it will reach you.
Trap one: your miles may all be at the lower rate
2026 is unusual. The IRS raised the business mileage rate in the middle of the year, which means the year has two rates and the rate depends on the date each mile was driven, not on when you file:
| Period the mile was driven | Business rate per mile |
|---|---|
| January 1 – June 30, 2026 | 72.5¢ |
| July 1 – December 31, 2026 | 76¢ |
If you stopped in the spring, every single one of your miles is a 72.5-cent mile. You do not get the 76-cent rate, because you were not driving when it applied. Plenty of part-year drivers will read a headline about "the 76-cent rate" in January and deduct the whole year at it. On 6,000 miles that is a $210 overstatement, and it is the kind of arithmetic error that is trivially checkable.
If you stopped somewhere in July or August, it is worse than a single wrong number: your log has to be split at July 1 and each half multiplied by its own rate. One total times one rate will be wrong either way. There is more on the change itself in the July 2026 mileage rate increase.
Do this before you forget: work out your business-mile total for January–June and for July onward as two separate numbers, today, while you can still remember when you stopped. Reconstructing the boundary in April is far harder than writing it down now.
Trap two: you still file a Schedule C
Quitting does not remove the income you already earned. The platforms will still issue their forms in January covering what they paid you, the IRS will still receive copies, and you still file a Schedule C for the part-year with your return — income on one side, mileage and other business costs on the other.
Two thresholds worth knowing. Forms only arrive above certain amounts, but your obligation to report the income does not depend on receiving one — a driver who earned $380 and got no form still reports $380. And self-employment tax generally kicks in once net self-employment earnings reach $400, which is a low bar that a couple of months of driving clears easily. Which form is which is covered in 1099-K vs 1099-NEC for gig drivers.
The upside of the same rule: your mileage deduction is what makes that number small. A part-year driver with $4,200 of gross earnings and 5,000 business miles from the first half of the year is deducting $3,625 before anything else is counted. Filing the Schedule C is how you claim that. Skipping it does not save you work, it just costs you the deduction.
The payment you may not have to make
If you were making quarterly estimated payments while you drove, the instinct is to keep the schedule going. You usually should not, and this is the one place where quitting genuinely saves you something.
Estimated payments exist to cover tax on income as you earn it. If you earned nothing after May, there is nothing for a later payment to cover, and continuing to send money simply hands the IRS an interest-free loan you get back next spring.
Two things to check before you stop paying. If you went back to a W-2 job, the simplest fix is to raise withholding there — withholding is treated as paid evenly across the year regardless of when it actually happened, which makes it a much more forgiving instrument than estimates. And if your income was heavily front-loaded, ask a preparer about the annualized income installment method on Form 2210: it lets you show that your income arrived early in the year, which can remove an underpayment penalty that the default even-quarters assumption would otherwise create. Our general set-aside guidance is in how much to set aside for taxes.
Do not delete the log
This is the mistake that actually costs people money, and it is the specific reason this post exists.
When you stop driving you clear out the driving apps. The mileage tracker goes with them, and so does the only record of the thing that was going to be your largest deduction. Nine months later a preparer asks for your business miles and the honest answer is that you have no idea.
Before you delete anything, export. Any tracker worth using will produce a spreadsheet or PDF of the year's trips — dates, distances, purposes, totals. Save it somewhere that is not the phone: email it to yourself, put it in cloud storage, print it if you like paper. Then you can delete whatever you want.
Keep it after you file, too. The usual retention answer is three years from filing, and a stopped business is not exempt — the detail is in how long to keep mileage logs. If you have already deleted it, the position is recoverable but weaker, and the method is in how to reconstruct a mileage log after the fact.
The car, if you are thinking of selling it
One long-tail consequence that surprises people. If you deducted standard mileage, a portion of every one of those cents was depreciation, and it reduced your tax basis in the vehicle whether or not you thought about it that way. That matters if you sell the car, and it keeps mattering after you stop driving for work. We cover it separately in selling a car after claiming the mileage deduction.
Where the app fits, and where it does not
TaxMiles applies the correct rate for each trip's own date, so a log that straddles July 1 is split and totalled properly without you doing it by hand — which is the single most error-prone part of a 2026 part-year return. It produces a CPA-ready export you can take with you and then delete the app, which for someone who has stopped driving is genuinely the point.
What it cannot do: reconstruct a year you never tracked, decide whether you owe an underpayment penalty, or file for you. If you drove for five months and logged nothing, an app installed today will not fix that — the reconstruction guide above is the honest route, and a preparer is worth the fee on a part-year return with a rate change in it.
Your part-year checklist
- Today: export the mileage log, and write down your January–June and July-onward business-mile totals separately.
- Now: stop making estimated payments for income you are no longer earning — and if you have a new W-2 job, raise withholding there instead.
- January: collect the platform forms, and report the income whether or not a form arrives.
- At filing: Schedule C for the part-year, miles multiplied by the rate in force on the dates they were driven.
- Keep: the log, the export and the forms for three years.
A part-year of driving is a smaller tax job than a full one, not a different one. The only genuinely new thing is the rate boundary — get that right and the rest is the same return everybody else files.
This is general education, not tax advice. Rates verified against IRS guidance on 21 September 2026. Your circumstances decide what you can claim — check with a qualified preparer before filing.