This is the most common hidden cost. If the market price of Bitcoin is $60,000, a zero-fee broker might sell it to you for $60,500. The $500 difference is their profit.

Always fund your account using a standard bank transfer (ACH), which is almost universally free. Avoid debit or credit cards.

You browse offers from sellers and pay them directly via bank transfer, cash, or digital payment apps.

To buy Bitcoin with zero fees, you must choose platforms that offer commission-free trading, use specific order types, or participate in promotional periods.