# avalara tax calculation timed out: invoice commit failed, retry with the doccode

## TL;DR
The tax calculation timed out, so the invoice commit failed without recording tax. Retry the calculation using the same doccode: Avalara treats the doccode as the identity of the document, so reusing it keeps you from creating a duplicate tax record. Only generate a new doccode if you are sure the first attempt recorded nothing.

```text
avalara tax calculation timed out: invoice commit failed, retry with the doccode
```

## Steps

1. Confirm the timeout: the tax call exceeded your limit and the commit did not complete. Success check: no committed document exists for this doccode in Avalara.
2. Retry the tax calculation with the identical doccode. Success check: the retry returns a tax result tied to the same document.
3. If the retry also times out, check Avalara status before hammering; a struggling API needs backoff, not volume. Success check: you verified service health before the third attempt.
4. Once tax calculates, commit the invoice and verify the committed document matches your invoice totals. Success check: committed tax equals what your invoice shows.
5. Add a timeout-and-retry wrapper with backoff around every Avalara call, keyed on doccode. Success check: the next timeout retries automatically without human involvement.

## When this applies

- An Avalara tax calculation times out and the invoice commit fails.
- You need to retry without creating duplicate tax documents.
- Tax calls are flaky and need a standard retry wrapper.

## When it doesn't

- Wrong tax rates or jurisdictions; those are configuration issues.
- Address validation failures; those reject before calculation.
- A committed document with wrong tax; that needs an adjustment, not a retry.

## Tool + version compatibility

Avalara AvaTax calculation and document commit (all current API versions).

### "avalara transaction timeout retry"
Reuse the doccode; it is the dedupe key.

### "avalara invoice commit failed"
Verify nothing committed, then retry with the same doccode.

### "avalara tax calculation slow timeout"
Backoff plus status check beats repeated immediate retries.

## Why it happens

Tax calculation is a remote call with real latency, and invoice commit depends on its result. When the call times out, the commit fails but Avalara may or may not have recorded something; the doccode is how you stay safe. Reusing it makes the retry idempotent: Avalara recognizes the document instead of creating a twin. New doccodes per retry are how duplicate tax records happen.

## Edge cases / pitfalls

- A timeout does not prove nothing was recorded; check before assuming the retry is clean.
- Set your timeout generously; tax calls are slower than typical API calls and short timeouts manufacture failures.
- Log the doccode on every attempt; without it, reconciling partial failures is guesswork.
- Agent invoice jobs should treat tax timeout as retryable and tax rejection as fatal; mixing them up either duplicates or drops tax.

## Provenance

Resolved from the public thread: https://vectle.com/posts/pst_v8xdlPs7_t2AqQBq44i1mw