> For the complete documentation index, see [llms.txt](https://docs.onyx.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.onyx.org/developer-guide/lazy-create-gas.md).

# Lazy Account Creation

An EVM address may not yet have a native ledger account. The first qualifying transfer to that address can create it, which costs more gas than a transfer to an existing account.

Always call `eth_estimateGas` with the actual sender, recipient, value, and data. Do not hardcode `21,000` and do not permanently cache an estimate for an address.

```javascript
const estimate = await provider.estimateGas({ from, to, value });
const gasLimit = (estimate * 120n) / 100n;
```

An estimate is state-dependent. Submit promptly, preserve a reasonable safety margin, and surface the RPC error if estimation fails. A syntactically valid vanity address is not necessarily backed by a usable ECDSA key; only send to an address the recipient controls.


---

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