What does 40% per day actually compound to?
Taken at face value and multiplied out, 40% per day is about 2.17e+55% a year. That is more than 5.43e+54x what you would get from a three-month Treasury bill that pays around 4% and a government-insured deposit around 3.5%. The arithmetic below assumes every payment arrives on time, which is the assumption that fails in practice, not the compounding.
Mathematically impossible to sustain
Compounded, this turns a small deposit into more money than exists. Nobody has ever sustained it. The advertised number is bait.
40% per day, by starting amount
| Held for | $100 becomes | $1,000 becomes | $10,000 becomes |
|---|---|---|---|
| 1 year | $2.17e+55 | $2.17e+56 | $2.17e+57 |
| 3 years | $1.02e+162 | $1.02e+163 | $1.02e+164 |
| 5 years | $4.83e+268 | $4.83e+269 | $4.83e+270 |
| 10 years | ∞ | ∞ | ∞ |
Balance = principal x (1 + 40%) ^ periods, compounded every day.
40% per day against what is guaranteed
Reference levels: long-run approximations, October 2026. A multiple of "-" means the comparison does not apply.
| Reference level | Rate | This rate in multiples |
|---|---|---|
| Insured bank deposit (US, FDIC) | 3.5% a year (guaranteed) | more than 6.2e+54x |
| 3-month US Treasury bill | 4.0% a year (guaranteed) | more than 5.43e+54x |
| US inflation (consumer prices) | 2.5% a year (not investable, measures erosion) | more than 8.69e+54x |
| S&P 500, long-run average | 10.0% a year (not guaranteed to anyone) | more than 2.17e+54x |
| Best long-run professional record (Buffett, decades) | 20.0% a year (not guaranteed to anyone) | more than 1.09e+54x |
The red line
A guaranteed return higher than a Treasury bill or an insured deposit cannot exist. Every dollar paid above the risk-free rate is paid for with risk, leverage, or other people's deposits. A published promise of a fixed return above the risk-free rate is the definition of a return trap.
Entries on this register quoting about 40% per day
These are published entries whose archived material quotes a rate in this range. Each one links to the evidence, the wording as published, and the strength-of-evidence check.
- DailyROI — 40% per day High-risk signals (1 archived source)
Questions about 40% per day
- What is 40% per day as an annual return?Compounded, 40% per day is about 2.17e+55% a year. Interest is multiplied, not added, so the yearly figure is (1 + 40/100) raised to the power of 365, minus one.
- How long would 40% per day take to double my money?About 2 days. At a daily rate that high the balance reaches a million dollars from a thousand in 21 days, which is why the number is only ever advertised, never audited.
- Is 40% per day realistic?No supervised product guarantees anything close. A daily percentage is quoted because it sounds small, but about 2.17e+55% a year is far above an insured deposit, above a Treasury bill, and above the best long-run professional record. A fixed promise at that level has to be paid from someone else's deposit.
Try your own numbers
- Daily return calculator — your amount, your horizon.
- Guaranteed return check — is any of this guaranteed?
- Where the payout comes from — how many new depositors it takes.
- Loss recovery — what one bad month costs.
All advertised rates · all calculators · the method and math.