> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.booko.nl/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Invoice settings and company details

Your company details and invoice preferences appear on every sales invoice. Make sure they're complete before you start invoicing.

## Company details

1. Go to **Settings** > **Company**.
2. Fill in your details, such as **Legal business name**, **Trading name**, **Chamber of Commerce number**, **VAT number**, **Business address** and **Contact details**.
3. Optionally add a **Company logo** (or use **Change logo** / **Remove logo**).
4. Click **Save changes**.

## Invoice preferences

1. Go to **Settings** > **Invoicing**.
2. Under **Invoice numbering**, set the **Prefix** and **Next number**, and choose **Reset yearly** or **Never reset**.
3. Set your default **Payment term** (in days).
4. Enter your bank details (**Account holder** and IBAN) so customers know where to pay.
5. Under **Invoice footer**, add a fixed text at the bottom of your invoices.
6. Check the **Invoice preview** and click **Save changes**.

## Good to know

- If you change the numbering, Booko asks you to confirm with **Confirm and save**.
- **Payment reminders** states that automatic reminders are not available yet; no reminders are sent.
- Booko support will never ask for your IBAN, password or login codes in chat. Only enter them yourself in the app.

## Still stuck?

- **Enter a valid IBAN.** Check the IBAN for typos and spaces.
- Can't set the numbering the way you want, or already issued invoices with a wrong number? Ask for a colleague in the chat or check with your accountant.