Utility Bill Detective
Separate usage, rate and other bill changes.
Calculation
Change in actual bill
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How to use this tool
Use two bills in the same currency and usage unit. Enter the actual current-period charges and flat usage rates. The result separates usage and price changes. The remaining difference can include fixed fees, tax, tier changes or credits and does not identify their exact causes.
Real-Life Examples
- Explain a bill with higher use and a higher rate
- Isolate an electricity usage increase
- Check a rate change with stable consumption
- Find a fixed-fee increase in the bill lines
- Investigate the residual from a higher electricity block
- Check whether daily electricity use really rose
- Separate a summer usage spike from a price change
- Check a water spike against the meter
- Reconcile a separate sewer adjustment
- Compare an estimated statement with a catch-up read