tophermade

A very quick, and simple invoice generator. Quickly create and maintain invoices for clients, distributors, etc right from your WordPress based site.

sprInvoice

A static, fully responsive invoice template generator for WordPress.

TacoCode

Nexus Merchants

Customer Portal for Stripe provides shortcodes which allows the currently signed-in user to 
manage their Stripe subscriptions, see their invoices & manage their cards:
<ul>
<li>
<code>[cpfs_list_subscriptions allow-cancel="true"]</code> 
Lists up to 10 Stripe subscriptions. The default value for<code>allow-cancel</code> is <code>false</code>. 
To allow a user to cancel their subscriptions, set <code>allow-cancel="true"</code>.
</li>
<li>
<code>[cpfs_list_invoices]</code> 
Lists up to 10 Stripe invoices.
</li>
<li>
<code>[cpfs_list_cards]</code> 
Lists up to 10 credit cards stored at Stripe.
</li>
<li>
<code>[cpfs_add_card]</code> 
Allows a user to add a new card. The newly added card will be set as default.
</li>
</ul>
<h4>Notes:</h4>
<ul>
<li>
On first visit of any page containing a <code>cpfs_*</code> shortcode, the currently signed-in user will be looked up 
in Stripe using the user’s email address. If not matching customer is found, a customer will be created.
</li>
<li>
If needed, an administrator can manually link a Stripe customer ID to a user by editing the affected user profile 
in WP Admin and updating the <code>Stripe Customer ID</code> field.
</li>
<li>
If an administrator updates the email address of any user in WP Admin, the Stripe customer email will be updated as 
well (or created if the customer doesn’t exist).
</li>
<li>
If a user updates their email address in WordPress, their email will not be updated in Stripe.
</li>
<li>
Responses from Stripe are being cached for 15 minutes to avoid excessive API calls.
</li>
</ul>

Customer Portal for Stripe

Provides shortcodes for Stripe Invoices, Subscriptions & Cards.

sprInvoice vs Customer Portal for Stripe