Easy Invoice Docs

Appearance

View as Markdown

Installation ​

New to WordPress? Read Your WordPress admin right after install — it maps every menu item under Easy Invoice to the page in these docs.

Requirements ​

  • WordPress 5.6+
  • PHP 7.4+ (the bundled composer.json is stricter than the readme — use the readme value for compatibility)
  • A WordPress site with Pretty permalinks enabled (Settings → Permalinks → anything other than Plain)
  • For Pro: an active Easy Invoice Pro license from your MatrixAddons account

Easy Invoice Pro requires the free Easy Invoice plugin to be active. Activating Pro without Free triggers a wp_die and auto-deactivates Pro — see easy-invoice-pro.php:184–211.

1. Install the free plugin ​

The free plugin is the foundation. Install it first.

  1. Open Plugins → Add New.
  2. Search for Easy Invoice by MatrixAddons.
  3. Click Install Now, then Activate.

From a ZIP ​

  1. Download easy-invoice.zip from wordpress.org/plugins/easy-invoice.
  2. Open Plugins → Add New → Upload Plugin.
  3. Choose the ZIP, click Install Now, then Activate.

You should see a new top-level Easy Invoice menu item in the WordPress sidebar.

2. Install Easy Invoice Pro (optional) ​

Pro is delivered as a separate plugin ZIP from your MatrixAddons account.

  1. Sign in at matrixaddons.com/account.
  2. Download easy-invoice-pro.zip from Downloads.
  3. In WordPress, open Plugins → Add New → Upload Plugin.
  4. Upload the ZIP, click Install Now, then Activate.

Activate your Pro license ​

  1. Open Easy Invoice → License.
  2. Paste your license key (from your MatrixAddons account → Licenses).
  3. Click Activate.

The license activates against https://store.mantrabrain.com/edd-sl-api/? — see Troubleshooting if your host firewalls outbound HTTPS.

3. Set permalinks ​

Easy Invoice rewrites URLs for invoice and quote singles. Without pretty permalinks, links 404.

  1. Open Settings → Permalinks.
  2. Pick Post name (or any non-Plain).
  3. Click Save Changes.

Pro also adds a Permalinks tab in Easy Invoice → Settings for custom & secure link slugs — see Pro features overview.

4. Verify the install ​

Quick sanity check that everything loaded:

CheckWherePass
Free plugin activePlugins → Installed Plugins"Easy Invoice" listed and active
Top-level menuWordPress sidebar"Easy Invoice" visible with submenus
Pretty permalinksSettings → PermalinksAnything except "Plain"
Pro active (if installed)Easy Invoice → LicenseStatus: Active
First invoice URLEasy Invoice → Add New → SavePublic link opens the invoice template

5. (Optional) Run the setup walkthrough ​

Easy Invoice doesn't ship a separate wizard — instead, the Quick start page walks you through:

  • Company details (name, address, logo for invoice header)
  • Currency & decimal precision
  • Invoice numbering (prefix + auto-increment)
  • The first email template
  • The first PayPal connection
  • Sending the first invoice

Updating ​

  • Free: WordPress.org auto-updates apply via Plugins → Installed Plugins.
  • Pro: After license activation, Pro updates show up in the same Plugins screen. The license must be active for update notifications to appear.

Where next ​