Every deduction, one file, zero bills.
Log an expense in five seconds. Log a trip and the right IRS rate gets applied by date — including the 2026 mid-year change. At tax time, print a mileage log that looks like a real record and hand your tax pro a clean CSV. Everything stays in this browser on this device.
How the estimate is built
Spending by category
Quarter by quarter
Estimated tax is the part that hurts, and it hurts four times a year. Federal due dates are April 15, June 15, September 15, and January 15 of the following year (next business day if that lands on a weekend or holiday).
| Quarter | Expenses | Deductible | Miles | Mileage ded. | Total ded. | Est. tax due |
|---|
Recurring / monthly expenses
Insurance, the phone bill, the storage unit, software. Save it once, then post the month with one click instead of retyping it twelve times a year.
| Name | Amount | Category | Day | Post to | Actions |
|---|
| Date | Amount | Category | Vendor | Job | Paid | Note | Rcpt | Actions |
|---|
| Date | Destination & purpose | Vehicle | Odo start | Odo end | Business miles | Rate | Deduction | Actions |
|---|
Your vehicles
One row per truck or van. Trips are tagged to a vehicle so business-use percentage and the standard-versus-actual comparison come out right for each one.
| Vehicle | In service | Business miles (year) | Trips | Actions |
|---|
Business-use percentage
The first number an auditor asks for. Business miles come from your log. Total miles come from your odometer on January 1 and December 31 — or type the total straight in. Schedule C, Part IV asks for exactly these figures.
Standard mileage vs actual expenses
Two ways to deduct a vehicle, and you pick one per vehicle per year. Standard mileage multiplies business miles by the IRS rate. Actual expenses adds up what the truck really cost and deducts the business-use share. Fill in what you spent and the bigger number wins.
Standard mileage rate
Actual expenses
Hand this to your tax pro
Two documents and three spreadsheets. The printed packet is the cover sheet; the CSVs are the detail your preparer will actually work from. Nothing here is uploaded — the files land in your Downloads folder.
Year-end summary
| Category | Entries | Spent | Deductible | Note |
|---|
Backup and restore
Browser storage is real storage until the day you clear your browser, get a new laptop, or a well-meaning cleanup tool wipes site data. Export a JSON backup once a week. It holds every year, every receipt photo, every vehicle setting, and Import puts it all back exactly as it was.