The classic challenge saves $1 in week 1, $2 in week 2 and so on, for $1,378 in a year. Change the numbers to build your own version.
The last weeks of the classic plan need $50 or more each, which lands in December for a January start. Many people do it in reverse (start at $52 and go down) so the hardest weeks come first, or use a fixed amount each week. Automatic transfers on payday make it much easier to stick with.
The classic version ($1 in week 1, rising $1 a week) saves $1,378 over 52 weeks. Doubling it ($2 and +$2) saves $2,756.
Yes. Start in any week; the total is the same as long as you make all 52 deposits.
Total = weeks x first deposit + increase x weeks x (weeks - 1) / 2.
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