## Documentation Index

Access the complete documentation index at:
https://www.zoho.com/uk/books/kb/llms.txt

Use this file to discover all available documentation pages before proceeding.

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# My HMRC connection has expired and is no longer valid. How do I reauthorise?

When you connect your Zoho Books organisation to HMRC, the authorisation is valid for up to 18 months. After this period, or if the authorisation token becomes invalid for other reasons such as changes to your HMRC account, you will not be able to submit quarterly updates until you reauthorise the connection.

To reauthorise if the 18-month validity has lapsed:

*   Go to **Settings**.
*   Select **Taxes** under _Taxes & Compliance_.
*   In the _Taxes_ pane, select **Income Tax** under _Other Taxes_.
*   Click **Do It Now >** in the warning banner to be redirected to HMRC’s website.
*   Enter your credentials and click **Sign in**.

Your connection will be refreshed, and you can continue submitting quarterly updates.

If the token has become invalid for other reasons, a **Reauthorise** button will appear on the _Making Tax Digital for Income Tax_ page.

To reauthorise:

*   Go to **Settings**.
*   Select **Taxes** under _Taxes & Compliance_.
*   In the _Taxes_ pane, select **Income Tax** under _Other Taxes_.
*   Click **Reauthorise** near the _Disconnect_ button. You’ll be redirected to HMRC’s website.
*   Enter your credentials and click **Sign in**.

Your connection will be refreshed, and you can resume submitting quarterly updates.