How to Add and Set Up the Spanish Tax ID Validator Widget on Your Form

With Jotform’s Spanish Tax ID Validator widget, you can verify Spanish tax identification numbers directly within your forms. Simply add the widget to your form, connect it to the appropriate field, and configure its settings to validate the information as users complete the form.

Automatically validating Spanish Tax IDs helps reduce data entry errors and ensures you collect accurate information from your respondents. Whether you’re processing registrations, customer records, or business forms, this widget makes your forms more reliable while providing a smoother experience for users.

Here are a few ways to use it:

• Verify Spanish Tax Identification Numbers — You can use the Spanish Tax ID Validator widget to automatically validate Spanish tax identification numbers as users enter them. This helps ensure the information is correctly formatted before the form is submitted.
• Streamline Customer Registration Forms — Businesses can add the widget to registration forms to collect valid tax IDs from customers. This reduces errors and speeds up the registration process.
• Improve Business and Vendor Onboarding — The widget is useful for onboarding suppliers, contractors, or business partners by verifying their Spanish tax IDs during the application process.
• Simplify Tax-Related Forms — Organizations can use the widget in forms that require tax identification for invoicing, accounting, or regulatory purposes. This helps ensure accurate records from the start.

Adding and Setting Up the Spanish Tax ID Validator Widget 

With just a few simple steps, you can add a field to your form that automatically validates Spanish Tax Identification Numbers as users enter them, helping improve data accuracy and reduce manual verification. Here’s how to get going:

1. In Form Builder, click on Add Element on the left side of the page.

2. Now, in the Form Elements menu, under the Widgets tab, search for Spanish Tax ID Validator and then click on it. Or, just drag and drop it to where you want it to be on your form.

3. Next, in the Widget Settings window that opens on the right side of the page, set up the following options:
   • Placeholder — Enter the sample text that appears inside the field before users type their Spanish Tax ID.
   • Error Message — Customize the message that appears when the entered Spanish Tax ID is invalid or incorrectly formatted.
4. Once you’re done, click on Update.

That’s it! You’ve successfully added and set up the Spanish Tax ID Validator widget on your form. Users can now enter their Spanish Tax Identification Numbers, and the widget will automatically validate them before the form is submitted. Ready to see it in real time? Have a look at this demo form.

To further customize your Spanish Tax ID Validator widget’s appearance, just click on the Gear icon to open its properties. To learn how it’s done, see our guide on How to Access and Configure the Question Properties of a Widget.