> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zerogen.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Billing settings

> Buy credits, turn on auto-reload, manage cards and billing details, and see invoices.

Owners and Admins manage billing in **Settings › Billing**. Everyone in the
organization can see the balance there. For how the balance and charges work,
see [Credits and billing](https://docs.zerogen.com/foundations/credits-and-billing.md).

## Add a card

Credit purchases and auto-reload charge your organization's default card.

1. Under **Payment details**, choose **Add card**.
2. Enter the card on the secure Stripe page that opens.

A new card becomes the default. If a card needs extra approval from your
bank, the page shows **Finish payment**.

Only the default card is charged; ZeroGen never falls back to another card.
To change it, choose **Make default** beside another card. **Remove** deletes
a card after you confirm, though the default can't be removed while
auto-reload uses it.

## Buy credits

1. Choose **Buy credits**.
2. Pick $25, $100 or $500, or choose **Other amount** and enter a whole-dollar
   amount from $10 to \$10,000.
3. Choose the card to pay with, then **Buy credits**.

![The Buy credits window, with amounts of \$25, \$100, \$500 or Other amount, a Pay with section and a Buy credits button.](https://mintcdn.com/zero-gen/m4I7fPs1rAXZSMjU/images/administration/buy-credits.png?fit=max\&auto=format\&n=m4I7fPs1rAXZSMjU\&q=85\&s=f1f67b705bb0c8162235d46f1c874679)

You're charged the amount plus tax. Bought credits expire one year after
purchase. Paying with a different card makes it your default.

## Turn on auto-reload

Auto-reload tops up your balance when it runs low, so work doesn't stop.

1. Choose **Manage auto-reload**.
2. Set:
   * **When credit balance reaches**: the balance that starts a reload, \$5 or
     more.
   * **Bring credit balance back up to**: the balance after a reload, at least
     \$10 above the first amount.
   * **Monthly auto-reload limit**: the most auto-reload can charge in a
     calendar month (UTC), before tax.
3. Choose **Turn on**.

![The Set up auto-reload window, with When credit balance reaches set to \$10, Bring credit balance back up to set to \$20, and a Monthly auto-reload limit of \$200.](https://mintcdn.com/zero-gen/m4I7fPs1rAXZSMjU/images/administration/auto-reload.png?fit=max\&auto=format\&n=m4I7fPs1rAXZSMjU\&q=85\&s=9ef93d76a6fddbd10e1dcebbb617d0c3)

Auto-reload charges your default card, plus tax. Once a reload would pass the
monthly limit, reloads pause until the next month. The **Auto-reload credits**
line on the Billing page shows whether it's **On**, **Off**, **Paused** or
**Needs attention**. For **Needs attention**, the line beside it says why.
Usually you turn auto-reload on again, after checking or replacing the card
if a payment failed.

## Edit billing details

Your company name, billing email, address and tax ID appear on every invoice.
Choose **Edit billing details** to change them. Adding a card replaces the
address with the card's billing address.

Receipts and invoices are emailed to the billing email.

## See invoices

**Invoice history** lists your organization's ten most recent invoices, with
amounts before tax.

## Set a monthly spend limit

The **Monthly spend limit** caps what the organization can spend each month.
See [Spend limits and budgets](https://docs.zerogen.com/foundations/spend-limits.md).


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