# Buy credits

You can buy credits at any time to use the Google add-on (GPT for Sheets – Autosheet) or the Microsoft add-in (GPT for Excel Word – Autosheet). Credits expire one year after the last purchase.

1. Sign in to the [Autosheet dashboard](https://dashboard.autosheet.com/) with the account that you use for your [space](https://autosheet.com/docs/resources/guides/concepts#space).

2. In the **Remaining credits** section, click **Buy credits**.

   ![Buy credits button in the Remaining credits section](https://autosheet.com/docs/article-images/pricing/dashboard-buy-a-pack.png)

   > **Info**
   >
   > If this option is not available, you can ask the owner of the space to buy credits.
   >
   > ![You can identify the owner in the Users section](https://autosheet.com/docs/article-images/pricing/dashboard-owner.png)

3. Click **Buy** for the credit pack that best suits your needs.

   ![List of credit options to choose from](https://autosheet.com/docs/article-images/pricing/dashboard-pack-list.png)

4. Enter your billing information and click **Go to checkout**.

5. Enter your payment details and click **Pay**.

Once your payment is processed, your credits increase by the purchased amount.

> **Tip**
>
> To estimate your credit usage based on common use cases, try our [estimation tools](https://autosheet.com/docs/resources/pricing/estimate-usage).

## What's next

- [Download an invoice or a receipt](https://autosheet.com/docs/admin/billing/pay-as-you-go/download-credit-pack-invoices-and-receipts) for a credit pack purchase.