0.001 BTC withdrawal: common threshold but verify fees and platform rules

You’re asking if BTC can be withdrawn only when the remaining balance is at least 0.001 BTC — I understand the concern.

In my experience, many exchanges and wallets use a minimum withdrawal amount around 0.001 BTC, but this is not universal. Network fees and platform-specific minimums or “dust” rules can make the effective minimum higher or prevent withdrawals of very small balances.

I recommend checking the withdrawal rules and fee schedule on your specific platform; if your balance is below the platform minimum or fees would consume the amount, you may need to top up, consolidate funds, or contact support.