What it costs
This group is the arithmetic. A fee is not one number but four layers multiplied together, a VIP tier is not a badge you keep, and holding a derivatives position costs something that is never printed on the fee line.
The three belong together because they answer one question in three parts: what this trade cost, which band you sit in over time, and what you keep paying while a position is open. People who only compute the first part routinely underestimate the other two.
-
How Binance fees are calculated
What you pay is a product of four layers: maker or taker, the BNB discount, your VIP tier, and any referral relationship.
-
How VIP tiers work
A tier is a rolling window, not a badge you keep. Review periods, dropping a tier, and the usual misreadings.
-
What the funding rate is
It is not on the fee line, but it is part of what a position costs — and it grows with how long you hold.