What's inside
- Up to 3 cars and 30 scheduled services, each with a miles and/or months interval and a typical cost
- For every service: last done (from your log), next due date, miles left, and a status: Overdue, Due soon or OK
- A monthly budget per car: each service's cost spread over its interval, plus a buffer for repairs
- A log for every service and repair, with a check column that catches typos, missing costs and future dates
- Year view: spending by month against your budget with a chart, spending by service, and cost per mile
- Sample file: two cars, a year of services. $175.57 a month covers both; brake fluid overdue, a tire rotation due in 400 miles
Checked, not just designed: 1,144 formulas, zero errors, and every calculated cell was recomputed independently from the raw entries in 7 scenarios per file.
Works in Excel 2019/365 and Google Sheets.