is there a limit to the amount of sales made per month?

[NAA]

is there a limit to the amount of sales per month?

[VanKalkerFarms]

There is no monthly minimum or maximum. There is a $50,000 per transaction limit, and users taking in over $100,000 per year are required to do some additional paperwork. https://squareup.com/help/us/en/article/5079-leading-merchant-practices#high-value-transactions