Short answer
Exchange fee tiers are a critical cost variable for active US holders — the entry tier is the most expensive rung, and fees drop as your monthly volume climbs. Many US retail holders overpay on fees because they trade on the default tier of a high-fee interface. The single most effective fee optimization for a non-institutional user is comparing the published maker/taker schedules of the exchanges available to you and moving off the most expensive default interface.
The tier structure on major US exchanges
Coinbase Advanced. Maker/taker rates tiered by 30-day trading volume; most retail users never climb past the first rung or two.
Coinbase (non-Advanced/Simple). The "regular" Coinbase interface charges a transaction fee plus a spread, so the effective cost per trade runs well above the Advanced tier schedule.
Kraken Pro. Also tiered by 30-day volume. Kraken's current entry-tier rates are higher than the legacy rates still quoted in older comparison tables, so use its live fee schedule page.
Gemini ActiveTrader. Tiered by 30-day volume, with the deeper discounts reserved for high-volume accounts.
Binance.US. Spot trading where available. Limited product selection.
Before choosing, open each exchange's current fee page and compare the tier you will actually sit on, not the headline top-tier rate.
If Binance International is available in your jurisdiction, you can compare the terms shown on the Binance registration page. Eligibility and any fee benefit depend on local restrictions, Binance's current terms and your account status; this site is an independent affiliate.
Hidden fees beyond the headline tier
Spread. The bid-ask spread is a hidden cost. Tight markets (BTC/USD on Coinbase Advanced) have a spread that is negligible next to the fee. Thin markets (small-cap altcoins) can have wide spreads that compound the explicit fee.
Withdrawal fees. Coinbase charges variable BTC/ETH withdrawal fees. Kraken Pro publishes flat rates. For frequent withdrawers, this adds up — calculate annual withdrawal cost when choosing.
ACH delays. Free ACH usually takes a few business days. Paying the wire fee for a faster transfer might be worth it depending on price volatility.
Practical recommendation
For US holders trading >$5K per month: use Coinbase Advanced (not regular Coinbase), Kraken Pro, Gemini ActiveTrader, or Binance.US. The savings versus the default Coinbase interface compound rapidly.
For long-term holders trading rarely: fee tier matters less. Focus on security (Passkey, withdrawal allowlist, hardware wallet) over fee optimization.
Further reading: Exchange evaluation handbook, CEX.