Short answer: check the real liquidity for your asset first, convert on the network with the cheapest fees, prefer a direct pair over a routed one, and split large amounts into several orders. For thin altcoins, slippage and routing costs typically exceed every exchange fee combined.
The number that matters is not the price
A quoted price tells you what the last small trade cleared at. What you receive depends on how much depth sits behind it. For a liquid asset the difference is negligible; for a thin one, selling a meaningful position can move the price against you by several percent before the order is filled. That gap — slippage — is the main cost of exiting an altcoin, and it never appears in a fee schedule.
Step 1 — assess liquidity honestly
- Compare 24-hour volume against the size of your position. If you are a noticeable fraction of daily volume, plan to split.
- Check whether the volume is spread across many venues or concentrated in one — concentration means one point of failure.
- Look at whether a direct pair to a stablecoin exists at all, or whether every route passes through BTC or ETH.
Step 2 — pick the route
| Route | Costs involved | Best for |
|---|---|---|
| Direct swap (ALT → USDT) | One spread, one network fee each side | Most positions, especially cross-chain |
| Routed trade (ALT → BTC → USDT) | Two spreads, two trading fees, plus withdrawal | Assets with no direct market |
| DEX on the asset's own chain | Gas per transaction, pool slippage, approval | Tokens only listed on-chain |
Each extra hop costs a spread. Fewer hops beats a marginally better headline rate almost every time.
Step 3 — choose the destination network
You are picking where the stablecoin lands, and that choice sets every future transfer cost. TRC-20 and Solana are the cheapest for holding and moving; ERC-20 makes sense only if a DeFi protocol requires it. Full comparison in choosing a USDT network.
Step 4 — split large orders
If your position is large relative to daily volume, converting in three or four tranches over a few hours generally beats a single market order. The exception is a falling market, where waiting costs more than slippage — in which case take the hit and be done.
Common mistakes
- Converting on the expensive network out of habit. The payout chain is a choice, so make it deliberately.
- Chasing a fractionally better rate through an extra hop, which costs more than it saves.
- Ignoring the minimum. Dust positions can cost more in fees than they are worth; sometimes the right move is to leave them.
- Forgetting the tax event. In most jurisdictions a swap into a stablecoin realises a gain or loss — see our crypto tax basics.
- Sending without a test when using a new route or a new address.
Key takeaways
- Slippage, not fees, is the main cost of exiting a thin altcoin.
- Every additional hop adds a spread — minimise routing.
- Choose the destination network deliberately; it sets your future costs.
- Split large orders unless the market is falling fast.
You can check available direct routes for your asset on the pairs page and see the exact amount you would receive before creating an order.
Frequently asked questions
Why did I receive less than the quoted price suggested?
Usually slippage on a thin market plus the payout network fee. The quoted price reflects the last trades; your order consumes depth beyond that point.
Should I convert to USDT or USDC?
USDT has broader liquidity and cheaper chain options; USDC is often preferred where regulated issuance matters. For a significant balance, splitting across both removes a single issuer as a point of failure.
Is it cheaper to use an exchange or an instant swap?
For very large positions in liquid assets, an exchange order book usually wins. For small and medium conversions, especially across chains, an instant swap replaces deposit, two trades and a withdrawal with one step and is often cheaper overall.
