A $4,800 goal: what changes when you lose three months?
A zero-interest saving plan isolates the part you control: the deposit and the deadline.
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These are hypothetical scenarios with real calculations. Change one assumption, inspect the difference and download the numbers to check them yourself.
The same deposits, two different timings
See why moving a deposit to the start of the month changes interest without changing your contributions.
Work through the exampleA $12,000 loan: compare three repayment paths
Follow monthly overpayments and a one-time payment all the way through the final installment.
Work through the exampleWhy a zero-interest loan can have a different final payment
A $100 balance split across three payments explains a common one-cent discrepancy.
Work through the exampleWhat does a $5,000 reserve cover?
Compare the same savings balance against two expense budgets instead of assigning a universal target.
Work through the exampleWhy a $5 weekly subscription is not $20 a month
Normalize recurring charges before comparing costs, and keep future savings separate from refunds.
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