> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://avalara.ferndocs.com/docs/integration-guides/cross-border/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://avalara.ferndocs.com/_mcp/server.

# AvaTax Cross-Border (Customs Duty and Import Tax)

Estimate or calculate customs duty and import taxes up front with greater accuracy.

#### [AvaTax for CDIT](/docs/cross-border/cdit/get-started)

Integration guide.

> API solutions for end-to-end tax compliance.

## Docs

- [Get started](https://avalara.ferndocs.com/docs/integration-guides/cross-border/cdit/get-started.md)
- [Understand](https://avalara.ferndocs.com/docs/integration-guides/cross-border/cdit/understand.md)
- [Build](https://avalara.ferndocs.com/docs/integration-guides/cross-border/cdit/build.md)
- [Get certified](https://avalara.ferndocs.com/docs/integration-guides/cross-border/cdit/get-certified.md)
- [Q-and-A](https://avalara.ferndocs.com/docs/integration-guides/cross-border/cdit/q-and-a.md)