Not really, it's mostly once/yr (leases do lock the price). But they can be very aggressive increases (e.g., +$500/mo). There are some areas/buildings that are

Not really, it's mostly once/yr (leases do lock the price). But they can be very aggressive increases (e.g., +$500/mo). There are some areas/buildings that are rent controlled though, then the increase is very small once/yr. But in those cases new leases make up the difference. I had a rent controlled one bedroom apt in SF for $2k/mo, when I left it was then priced at $3k/mo.