Why one month lies
Why is one month a bad guide to what I spend?
Any single month is a sample of one. It might hold the yearly car insurance, a dentist bill and a birthday, or none of the things that make a normal year cost what it does. Either way, it’s a poor stand-in for the other eleven.
How much a month moves
The JPMorgan Chase Institute followed nearly 250,000 Chase customers from 2013 to 2015. For median-income households, spending moved by nearly $1,300, or 29 percent, from one month to the next. From one year to the next it moved by 15 percent: months swing harder than years.
Big payments that are unusual for the household are part of that. In the same data, 37 percent of families made at least one large, unusual payment for medical care, car repairs or taxes within a year, and the median one was $1,520.
Some bills run on a calendar. The CFPB’s annual planner, a worksheet built for budgets that vary from month to month, asks you to list the bills you pay once a year, twice a year or every quarter, and the times you spend more, like holidays and back to school.
An invented year
Ten months at €2,000, a March at €3,400 when the car insurance and a dentist bill land, and a December at €3,000. Plan on a usual month and the year comes up €2,400 short, exactly what March and December added. Plan on March and you budget €1,200 a month more than the year needs. The twelve-month average, €2,200, is the number that holds.
How Token Circles reads your months
The circles in Token Circles, and the next steps they suggest, read your history like this.
- Averages run over up to a year. What you spend, what you earn and what you need every month are averaged over up to the last 12 tracked months before this one. This month stays out while it’s under way, because half a month would pull every average down.
- No average from fewer than 3 months. Until 3 months are tracked, the circles work out no averages.
- A tracked month holds at least 3 entries of any kind, so a month with a stray entry or two doesn’t count as one.
- A year on file is 12 tracked months out of the last 13. That’s the first check on your first circle, Clear picture, and the reason the app asks you to import a year. Getting a year out of your bank says where to find it.
- A month in the red gets a card. When last month spent more than it earned, Token Circles says so and points you to where the money went. Your second circle, Paying your way, decides on the average instead: whether your own income covers your spending across those months. A red month counts once in that average, like every other month.
What to do with a heavy month
Look at what made it heavy. If it’s a bill that comes once a year, it had to land in some month. Bills in Token Circles can hold yearly bills, and your fourth circle, Solid ground, has a check for setting a twelfth of them aside each month. If it’s something that won’t come back, a twelve-month average carries a twelfth of it.
Sources
All read on 31 October 2026.
- JPMorgan Chase Institute: Coping with Costs (February 2017)
- Consumer Financial Protection Bureau: Annual planner, a tool from Your Money, Your Goals (2019)
Token Circles explains and calculates. It does not give financial advice. For decisions about investments, loans or pensions, talk to a licensed adviser.