With the business mileage rate now at a record 76 cents, every mile you drive for work is worth a little more, but only the miles you can document. Vehicle costs are among the easiest deductions to lose to spotty recordkeeping. This post is about building a mileage and expense system that holds up, so nothing slips through by tax time.
Why tracking usually falls apart
Mileage and vehicle expenses are rarely lost because the rules are hard; they are lost because the records were never captured.
The trip you meant to write down, the receipt that faded in the console, the drive you are sure was business but cannot quite place: by spring, those are guesses. And guesses do not hold up if you are ever asked to support the deduction. The fix is not more discipline at tax time. It is a small habit kept during the year.
Choose one mileage method and stick with it
Pick a single way to log your miles and use it consistently; a tool you actually keep up is worth more than a better one you abandon by March.
You have three practical options. An automatic app logs trips by GPS and lets you mark each as business or personal; many bookkeeping platforms, including QuickBooks Online, include this. A manual log, whether a notebook or a spreadsheet, works when your driving is occasional and predictable. A calendar method reconstructs mileage from appointments already on your schedule and can supplement either. Whichever you choose, every trip needs four details: the date, the miles, the destination, and the business purpose.
Take an odometer reading now
Record your odometer at the start of the year and again at mid-year.
With the rate changing on July 1, a mid-year reading marks a clean line between the two rates that apply to your 2026 return. (Our companion Tax Talk post explains that rate change in full.) Beginning and ending readings anchor a defensible mileage record in any year.
If you deduct actual expenses, capture them as you go
If you use the actual expense method instead, run every vehicle cost through your books as it happens.
Fuel, insurance, repairs, maintenance, registration: each needs a receipt behind it. Run vehicle expenses through a dedicated account and categorize them as they come in, rather than sorting a year''s worth at once. This is also where personal and business driving get tangled, so keep them clearly separated and the business portion stays easy to support.
Make it a weekly habit, not a yearly project
A few minutes each week to confirm your trips are logged and receipts captured is far easier than reconstructing twelve months from memory.
Add a monthly reconciliation, and your records stay current, accurate, and ready, whether for tax time, a financing conversation, or a question you did not see coming.
The payoff
Good records are not bookkeeping for its own sake; they are how you claim every deduction you have earned and support it if you are ever asked.
A mid-year rate change is a good prompt to confirm your system is doing exactly that.
Build a system you can rely on
If you would like help setting up mileage and expense tracking that fits how you work and connects cleanly to your books, we are glad to help. Contact Stone Accounting Services and we will build a system you can rely on.
This post is provided for general educational purposes. Every business keeps its records a little differently, and we welcome the opportunity to discuss yours.
