> To clarify: Are all rents in the US monthly and due on the first of the month?
Yes, at least in all the markets I'm aware of. If someone moves in after in the middle of a month, you'll pro-rate the rent for that first fraction of a month so that everyone's back on the monthly cycle for the rest of the lease (typically 12 months, but in some markets there's a strong preference for a particular month and so the lease will be written to end after less than 12 months. Typically uni towns where you really want to lease to end on August 31st regardless of when it started).
To clarify the 15th: paychecks typically also always arrive bimonthy and on fixed days. So, people would fail to budget for the 1st but would be able to cover rent when their second bimonthly paycheck hit their account. As a land owner extracting rent from folks, I think it's more than fair that they get a ~10 day interest fee loan as needed. And even if I were an asshole, it wouldn't be in my economic interest to do anything about those sorts of 10 day delays.
But I sort of suspect a lot of the folks who couldn't afford rent on the 1st of April 2020 won't be able to afford rent on the 15th of April 2020 either...
Where I live, although the rent was technically due on the first, there's an automatic grace period of three days without late fees so the actual due date is the fourth.
Years of renting. I imagine it goes by state law but the grace period has always been three days. The 4th of the month is when the late fee would be tacked on.
In NZ rent is weekly, on no particular day (can be different for each tenant).