There is no legal limit to how much Bitcoin you can purchase. The maximum that you can buy will depend on the exchange or provider that you are purchasing from at that time. … Tier 2 Customers. TierDaily LimitMonthly LimitTier 1 (Lower Limits)$5,000$20,000Tier 2 (Higher Limits)$20,000$40,000Is there a limit to how much Bitcoin I can purchase? – DigitalMint www.digitalmint.io › customer-support › faqs › is-there-a-btc-limit