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Creating a one-time payment form

A step-by-step guide about creating a one-time payment form for selling one-off products.


In this tutorial, we’ll show you how to create and customize a one-time payment form.

We’d recommend reading the Introducing form types article, if you haven’t read it yet.

Creating a one-time payment form in 7 easy steps

We recommend going through the following steps:

  1. Gather your requirements
  2. Switch to test mode
  3. Create form
  4. Insert form shortcode
  5. Preview form
  6. Fine-tune and customize form
  7. Switch to live mode

1. Gather your requirements

It’s a good practice to have a bird’s eye view before creating the form. Thinking about your business case and requirements will help you go live much faster.

Let’s ask few questions that might help you create the right form:

  • Is it an inline or checkout form?
  • What currency is used for payment?
  • Does the form charge immediately or use authorize & capture?
  • Does the customer pay a fixed amount, select a product, or enter the payment amount?
  • Does the form collect billing address or shipping address?
  • Does the form display a “Terms of service” checkbox?
  • Are custom fields needed to gather extra information from the customer?
  • Does the form send an email receipt?
  • Does the form redirect to a page after payment?
  • Do you want to protect the form from bots and spammers?

2. Switch to test mode

It’s recommended to create and test your forms in test mode where you can use test cards to simulate every possible payment outcome. No need to refund your payment after testing either.

You can switch to test mode on the “Full Stripe / Settings / Stripe” page in WP admin: WP Full Stripe - Test API mode

2. Create form

You can create a one-time payment form on the “Full Stripe / One-time Payments / Payment Forms” page in WP admin.

Depending on the form layout you choose (inline or checkout), press the “Create Inline Form” or “Create Checkout Form” button: WP Full Stripe - Create one-time payment form

2a) Create form - Payment tab

The “Payment” tab is for business related options. You can configure the payment options the form offers to customers.

WP Full Stripe - "Payment" tab of one-time payment forms

Form name

Set the unique identifier of the form. The name will be used by the form shortcode to render the form, and also for referring to the form in lists.

Use alphanumerical characters for your form names. Don’t use spaces or special characters.

Inline shortcode example:
[fullstripe_form name=”yourFormName” type=”inline_payment”]

Checkout shortcode example:
[fullstripe_form name=”yourFormName” type=”popup_payment”]

Payment type

You can specify how much the customer will pay:

  • Set amount
    The payment amount is fixed, no options to choose from.
  • Select amount from list
    The customer can choose a product from list of options, or (optionally) enter the payment amount.
  • Custom amount
    The customer can enter the payment amount manually.

You can specify the payment amount of these payment options in the smallest unit of the currency, so 1000 means 10,00 USD and 800 means 800 JPY (Japanese Yen).

Set amount

Select this option if you’d like to charge a preset, fixed amount: WP Full Stripe - Payment type is Set amount

Enter the amount in the “Payment amount” field.
WP Full Stripe - Payment amount

Select amount from list

Select this option if you’d like the customer to choose from several products (payment amounts): WP Full Stripe - Payment type is Select amount from list

Add the products (Amount + description) to the “Payment amount options” field: WP Full Stripe - Payment amount options

You might want to enable entering a custom amount by ticking the “Allow custom amount to be entered?” option. This is very useful for donation forms.

Custom amount

Select this option if the only required payment option is entering the payment amount manually. This is used on forms for paying invoices: WP Full Stripe - Payment type is Custom amount

Charge type

The plugin charge the payment immediately, or it can just authorize it so you can capture it later: WP Full Stripe - Charge type

You can read more about authorize & capture on the Stripe website.

If a payment is authorized then you can capture it manually on the “Full Stripe / One-time payments / Payments” page in WP admin.

Payment description

You can configure the description that will appear on the Stripe dashboard for the payment.

The payment description may contain placeholder tokens that are replaced with actual values after payment.

2b) Create form - Appearance tab

The “Appearance” tab is for configuring how your form will look like.

There are some options which are the same for both inline and checkout forms, but most of the options are different.

Appearance tab - Common options

CSS class for custom styles

You can use this CSS selector to add custom styles to the form.
Please refer to the Customizing forms with CSS knowledge base article for more information.

Amount selector style

When the form lets the customer select a product to purchase you can configure how the products list looks like.

Possible values are:

  • Product selector dropdown
    This is the default option. It conserves space when the form offers a lot of choices.
  • List of products
    Shows a list of radio buttons. Ideal when there are only a few options to choose from.
  • Donation button group
    Offers a group of amount buttons organized for donation amount selection.

Product selector dropdown

WP Full Stripe - Amount selector - Dropdown

List of products

WP Full Stripe - Amount selector - List

Donation button group

WP Full Stripe - Amount selector - Donation

Include amount on button?

The payment amount is displayed on the button when this option is turned on.

The amount is appended to the button label by default. You can use the {{amount}} placeholder to insert the payment amount wherever you see fit.

Include billing address field?

The form collects billing address when this option is turned on.

Appearance tab - Inline form options

Payment button text

This is the label of the payment button.

The label may contain the {{amount}} placeholder if the “Include amount on button?” option is turned on: WP Full Stripe - Payment button text

Appearance tab - Checkout form options

Amount style selector

Still not finding the solution?

Our support team is happy to help you.

Contact support

Feature requests are always welcome!
We consider each feature request carefully, and examine how it fits the roadmap for the plugin.