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Tracking free trial end dates manually: the spreadsheet method
The 4-column spreadsheet setup that catches trial deadlines before they turn into a charge — plus where manual tracking usually breaks down.
The 4 columns you need
Service namewhat you signed up for
Trial start datethe day you signed up
Trial lengthe.g. 7, 14, or 30 days
Cancel-by datestart + length, minus 1–2 day buffer
Log it the day you sign up
Add the row immediately after signing up, while the terms are still in front of you — waiting even a day is how most trials get forgotten.
The trap to avoid
Watch out: A spreadsheet only works if you actually open it. Most manual trackers get forgotten within a few weeks, and there is no notification when a cancel-by date arrives.
Smartest move
Pair the spreadsheet with an actual reminder — a calendar entry or a free calculator that outputs a cancel-by date and a downloadable .ics file, so you do not have to remember to check the sheet.
Skip the spreadsheet math
Enter the trial start date and length — TrialGuard calculates the exact cancel-by date and gives you a one-click calendar reminder. Free, on-device.
Get my cancel-by date →