SideBySideCrypto
Bitcoin December 2025

Cheapest Way to Buy Bitcoin in 2025

Don't pay more than you need to. Here's how to maximize your BTC for every dollar spent.

Cheapest Method

ACH deposit (free) + Binance.US (0.10%) + limit order = 0.10% total. On a $1,000 purchase, you pay just $1 in fees. Compare to Cash App at ~$20.

Total Cost Comparison: $1,000 BTC Purchase

Method Deposit Fee Trading Fee Total Cost
Binance.US + ACH $0 $1 $1
Kraken + ACH $0 $1.60-2.60 $1.60-2.60
Coinbase Adv. + ACH $0 $4-6 $4-6
Coinbase Simple + ACH $0 $15+ $15+
Cash App ~2% ~$20
Any + Debit Card $25-45 +$1-15 $26-60

The Optimal Strategy

  1. 1
    Deposit via ACH bank transfer — Free on all major exchanges. Takes 3-5 days but many offer instant trading.
  2. 2
    Use Binance.US or Kraken — Lowest trading fees (0.10-0.16% maker).
  3. 3
    Place a limit order — Pays maker fee, saves 30-50% vs market orders.
  4. 4
    Keep on exchange or withdraw via Gemini — If withdrawing, use Gemini's 10 free monthly withdrawals.

What About Convenience?

If speed matters more than fees:

  • Same-day purchase: Wire transfer ($10-25) + exchange trade. Total ~$15-30 on $1K.
  • Instant purchase: Debit card (2.5-4.5%). Total ~$25-45 on $1K. Only for emergencies.
  • Quick & reasonable: Coinbase with instant ACH trading. Free deposit, trade immediately, 0.40-0.60% fee.

Avoid These

  • PayPal/Venmo — High spreads, can't withdraw BTC
  • Bitcoin ATMs — 5-20% fees, absolutely brutal
  • Credit cards — Cash advance fees + exchange fees
  • "Simple buy" interfaces — Convenience tax of 1-2%

The Bottom Line

ACH + Binance.US + limit order = 0.10% fees. If Binance.US isn't in your state, Kraken at 0.16% is the next best. The difference between optimal ($1 per $1K) and lazy ($50+ per $1K) adds up fast over time.

Compare All Exchanges