An inactivity fee is a fixed amount a provider debits purely because nothing has happened on an account for a defined period. It does not depend on trading, on a withdrawal or on the size of the balance, but on standstill. Anyone who opened a second account at a crypto exchange years ago and then forgot about it may have been paying there for months without noticing.

Two providers have touched their rates in recent weeks, and in both cases the move was upwards. This article explains the mechanics behind it, shows with two documented cases how high the amounts now run, and walks through checking your own dormant account. First, though, the result of our own survey, which is decisive for that check: on publicly accessible fee pages, the…