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

# Fees and payment

> What buyers pay, how they pay, and the limits on samples and invoices.

Values marked as current defaults are server configuration and can change; the checkout summary
quotes the exact figure before you pay. The rules that apply to every sale are on
[How DataVendor works](/overview/how-it-works#the-rules-every-sale-follows).

## Fees

| Fee | Amount | When it applies |
| - | - | - |
| **Transaction fee** | Currently 3% of the listing price + \$0.30 | Computed at checkout and shown before payment. |

## Paying

| Price | How you pay |
| - | - |
| **Up to \$5,000** | By card in the app. |
| **Over \$5,000** | By a net-30 invoice, payable by card or US bank transfer. Access is granted when the invoice is paid. |

The price is the listing price, or the bid amount when you check out an accepted bid.

## Pay by invoice

<Steps>
  <Step title="Choose Submit a PO">
    On a listing over $5,000, the buy button reads **Submit a PO**. An accepted bid over $5,000
    shows the same option.
  </Step>

  <Step title="Enter billing details">
    The first time, enter the legal name, billing email, street address, city, and two-letter
    country code, plus any apartment, state, or postal code, and choose **Save billing details**.
    Later invoices reuse them.
  </Step>

  <Step title="Send the invoice">
    Add a **PO number** if you want it printed on the invoice, then choose **Send invoice**. Stripe
    emails the invoice to your billing email.
  </Step>
</Steps>

Until it is paid, the purchase shows as **Invoiced** under **Purchases**, with **View invoice** and
its due date. An open invoice blocks further purchases of that listing. To drop it, choose
**Cancel invoice**: the invoice is voided, the purchase is cancelled, and you can buy the listing
again later.

## Limits

| Limit | Value |
| - | - |
| **Samples** | One per listing per buyer team; offered only on listings that sell HUD tasksets with their environments, hold at least two runnable tasks, and set a sample price |
| **Spending** | Only team admins can buy, check out a sample, place or complete a bid, send or cancel an invoice, or save billing details |


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