The 100 envelope challenge is a savings game where you number 100 envelopes from $1 to $100, pull one at random, and put that many dollars inside. Fill all 100 and you’ve saved $5,050.
I tried it the winter after I paid off my last credit card, mostly because I missed having a money goal to chase. I didn’t finish it the way TikTok said I would. I finished it a different way, and I think my version works better for most budgets. I’ll walk through how it works, the math the videos skip, and three easier versions if $5,050 feels like a lot right now.
How the 100 envelope challenge works
The setup takes about 20 minutes and a pack of envelopes.
- Number 100 envelopes from 1 to 100. Cheap white ones work fine. I used a box of 100 that cost $6.
- Shuffle them into a box, a basket or a binder with pocket pages.
- Pull an envelope on your saving day, without looking.
- Put in that dollar amount. Envelope 37 means $37. Envelope 4 means $4.
- Seal it, mark it on a tracker and put it back in the box, filled side facing out.
- Repeat until every envelope is full.
The random draw is the fun part. Some days you get envelope 3 and feel like you’re cheating. Some days you get 96 the week your car registration is due and you want to throw the box out a window. Both are normal.
Every envelope is a small yes to yourself. A hundred of them add up to $5,050.
The real math of the 100 envelope challenge
I wish someone had spelled this out before I started. The total is fixed: 1 + 2 + 3, all the way to 100, adds up to $5,050. What changes is how fast you go, and that changes everything about whether it fits your budget.
- The viral “100 days” version: one envelope a day. That’s about $50.50 a day on average, or roughly $1,500 a month.
- Two envelopes a week: done in 50 weeks, at about $101 a week or roughly $440 a month.
- One envelope a week: done in 100 weeks, at about $50.50 a week, a little under $220 a month.
- One envelope each payday, biweekly: almost four years, at about $110 a month.
That first one is why so many people quit. Saving $1,500 a month is more than many people’s rent. If your take-home pay is $3,500 a month, the 100-day version asks for over 40% of it. That isn’t a savings habit. It’s a second rent payment.
So the honest answer to “can I do this?” depends entirely on the timeline you pick, not on willpower.
What happened when I tried it
I started in January with the two-a-week pace. I’d pull envelopes on Sunday night, after I’d planned my week’s spending. It felt great for about six weeks.
Then I pulled 88 and 91 in the same week. That’s $179 when my “fun money” envelope for the week was $60. I put the 91 back, which you’re not supposed to do, and felt like I’d failed a test.
So I changed the rules. I set a weekly cap of $110. If the two envelopes I pulled added up to more, I’d pull one of them and save the other for a week when I got low numbers. Some weeks I filled three small envelopes. The total still went in. It just stopped wrecking my grocery budget.
It took me 13 months instead of 12. I ended with $5,050 in envelopes and moved it into a high-yield savings account the same week, because cash in a closet earns nothing and makes me nervous.
Three easier versions of the 100 envelope challenge
If $5,050 feels out of reach right now, you’re not behind. Pick a version that fits the money you have today.
- The half challenge. Use only envelopes 1 to 50. The total is $1,275. One envelope a week finishes it in a year at about $25 a week.
- The quarters version. Each envelope is worth a quarter of its number, so envelope 40 means $10. The total is $1,262.50, but you still get all 100 draws.
- The capped version. Do the full 1 to 100, but set a weekly limit like I did. You still reach $5,050. You just reach it on your own schedule.
If you’re on a tight budget, I’d start with the quarters version. It keeps the game, but the hardest week is $25.
Cozy tip: Before you buy a single envelope, decide what the money is for. “Emergency fund,” “car repair cushion” or “Christmas next year” will keep you going on envelope 96 week far better than “savings.” The free printable budget template has a goal tracker page you can tape right inside the box lid.
Comparing the 100 envelope challenge with other savings challenges
I’ve done a few of these now. This is how they stack up. Totals are fixed by each challenge’s rules; monthly figures are rounded averages.
| Challenge | Total saved | Typical timeline | Average per month | Hardest single deposit | Best for |
|---|---|---|---|---|---|
| 100 envelope, 1 per day | $5,050 | 100 days | About $1,515 | $100 | A bonus, tax refund or big income month |
| 100 envelope, 2 per week | $5,050 | 50 weeks | About $440 | $199 (two high draws) | Steady income with room in the budget |
| 100 envelope, 1 per week | $5,050 | 100 weeks | About $220 | $100 | Most people, honestly |
| Half challenge (1 to 50) | $1,275 | 50 weeks | About $110 | $50 | First-time savers |
| Quarters version | $1,262.50 | 100 weeks or less | About $55 at 1 per week | $25 | Tight budgets |
| 52-week challenge | $1,378 | 52 weeks | About $115 | $52 | People who like a set schedule |
If you like the idea of a set schedule instead of a random draw, my guide to the 52-week money challenge has a week-by-week table. If you like the envelopes but want a monthly system, start with cash stuffing for beginners.
Where to keep the money once it’s saved
Envelopes are great for the game. They’re not great for $5,050. Cash at home can be lost, stolen or “borrowed” by future you on a bad night.
I learned this the slightly embarrassing way. Around month four, I had about $1,600 in a shoebox on my closet shelf, and I caught myself “borrowing” $40 from envelope 40 for a concert ticket. I paid it back. But it showed me how easy it is to treat a pile of cash as a backup wallet instead of savings.
What I do now is deposit the filled envelopes every month or so. I keep the empty, numbered envelopes in the box with a checkmark on each one, so the game keeps going even though the money has moved. At the end, a box full of checkmarked envelopes is just as satisfying, and the balance has been earning interest the whole time.
When the money hits the bank, I put it in a separate savings account with a nickname, like “Envelope Box,” so it doesn’t blend into my everyday checking. The physical draw stays fun, but the money lives in an insured account. If you move savings to a bank or credit union, the FDIC explains how deposit insurance works and what’s covered.
And if you’re building your first cushion, the CFPB’s guide to building an emergency fund is a calm, practical read. A finished 100 envelope challenge is a very solid start on one.
How to make the challenge stick past week six
Week six is when I almost quit, and from what readers tell me, it’s when a lot of people stop. The excitement wears off and the envelopes start feeling like a chore. What kept me going:
- Pick a set saving day. Mine was Sunday night, right after I planned the week’s meals. It became part of a routine instead of a decision.
- Keep the box where you can see it. Mine sat on a bookshelf in the living room. Watching the filled side grow was the best motivation I had.
- Fill it from money that’s already free. I pulled envelopes after payday and after my bills were covered, never before. Saving with money that was already promised to rent just meant moving stress around.
- Let small wins count. On a tight week, I’d fill envelope 2 and envelope 5 and call it a win. Seven dollars is still seven dollars.
- Do it with someone. A coworker started her own box a month after me. We texted each other photos of our worst draws, which made the bad weeks a lot funnier.
If you miss a week, don’t start over. Just pick up where you left off. The total doesn’t care how many Sundays it took, and nobody is grading you.
Common mistakes with the 100 envelope challenge
- Picking the 100-day pace by default. About $1,500 a month is out of reach for most budgets. Choose the timeline first, then start.
- Pulling from bills money to fill an envelope. If you skip a utility payment to feed envelope 88, the late fee wipes out the win. Savings come from extra money only.
- Keeping thousands in cash at home. Deposit as you go so the money is safe and, ideally, earning interest.
For more numbers on how Americans save, see my budgeting statistics page, and the cash stuffing section has more envelope systems to try.
Frequently Asked Questions
How much do you save with the 100 envelope challenge?
$5,050. Envelopes are numbered 1 to 100 and each holds its number in dollars, and 1 + 2 + … + 100 adds up to 5,050.
How long does the 100 envelope challenge take?
As long as you choose. One envelope a day takes 100 days but means about $1,500 a month. Two a week takes 50 weeks, and one a week takes about two years.
Is the 100 envelope challenge realistic?
It is if the pace matches your income. The 100-day version is hard for most people, but a weekly pace or the half version (envelopes 1 to 50, $1,275 total) fits many budgets.
What is the easier version of the 100 envelope challenge?
Popular easier versions use only envelopes 1 to 50, or count each envelope as a quarter of its number, so envelope 40 means $10. Both save about $1,265 to $1,275 total.
Should I keep the 100 envelope challenge money in cash?
Cash is fine while you play, but depositing filled envelopes regularly into an insured savings account keeps the money safe and lets it earn interest.
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