Why Fees Kill More Profits Than You Think
Fees compound on both sides of every trade. At 0.5% per side (1.0% round trip) on a $10,000 trade, you pay $100 in fees. If Bitcoin moves +2%, your gross profit is $200 — but $100 evaporates in fees, leaving only $100 net. The fee drag grows larger as trade frequency increases.
- Spot exchange fees: 0.1–0.5% per side is typical (Binance: 0.1%, Coinbase: 0.5%)
- DEX/on-chain fees: 0.3% liquidity provider fee + gas costs (can be $5–80 on Ethereum mainnet)
- Perpetual futures: spot fee + funding rate (can be −0.1% to +0.3% every 8 hours)
- Maker vs taker: limit orders (maker) often get 30–50% fee discounts — use them on liquid coins
Break-Even Price: The Number Most Traders Ignore
Before you worry about profit targets, know your break-even price — the minimum sell price where you exit at zero profit. On a 1% total-fee trade, your position needs to gain 1% just to cover costs. High fees on small moves are a guaranteed way to grind your capital down.
- Break-even = buy price × (1 + total fee %)
- At 0.2% fees: need 0.2% price gain to break even
- At 1.0% fees (common on CEX with spread): need 1.0% gain just to cover costs
- DEX + gas at $30 on a $500 trade = 6% fee — need 6% price gain before any profit
Crypto Tax: What Actually Gets Taxed
Crypto is taxed as property in most jurisdictions — every trade is a taxable event. Short-term gains (held under 1 year) are taxed as ordinary income in the US. Long-term gains (held over 1 year) get the preferential capital gains rate — 0%, 15%, or 20% depending on income.
- US: short-term = ordinary income (10–37%); long-term = 0/15/20% capital gains
- UK: CGT on crypto gains, but first £6,000/year is exempt (2024–25 allowance)
- EU: varies widely — Germany taxes 0% after 1-year hold; France ~30% flat tax
- Every swap between coins is a taxable event, not just cash-out
- Track cost basis per coin using FIFO, LIFO, or specific ID (HIFO to minimize tax)
ROI vs. CAGR: Which Matters for Crypto
Raw ROI tells you how much you made on a single trade. But compound annual growth rate (CAGR) tells you if crypto is actually outperforming other asset classes over time. A 3× return in 3 years looks impressive — but it's only a 44% CAGR, roughly in line with top venture funds.
- ROI = (profit ÷ invested) × 100%
- CAGR = (ending value ÷ starting value) ^ (1 / years) − 1
- Bitcoin CAGR from 2017–2024: ~38% — extraordinary but with severe drawdowns
- Drawdown matters: a 50% drop requires a 100% gain just to break even