Apart from the limited transaction size in MB, which theoretically limits the maximum amount of money a transaction can handle, is there any standardized bound?

2 Answers 2


There is no limit on the per-input, per-output, fee, or total amount transacted, apart from the fact that all numbers need to be valid BTC amounts (which means not less than 0 and not more than 21M BTC).


Transaction outputs are the only place we specify amounts, stored as 64-bit unsigned integers. So we can specify maximum of 92233720368.5 bitcoins in an transaction output.


However, there are per-output checks using bool MoneyRange(), when a new block is announced. This is more important, since it lowers the maximum amount that can be transacted to the 21-million figure.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.