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A lightweight add-on that extends Fluent Forms<\/strong> and Fluent SMTP<\/strong> with new fields, admin tools, and features to boost form functionality without the bloat. Other form plugins might be added in the future.<\/p>\n\n The free version<\/strong> gives your forms fields that check themselves: EU VAT numbers<\/a><\/strong> against VIES, Czech and Slovak company numbers (I\u010cO)<\/a><\/strong> against the ARES and FinStat business registries, IBAN and Czech\/Slovak bank accounts<\/a><\/strong> offline by checksum, a confirm field<\/a><\/strong> for emails or passwords, and a Unique ID<\/a><\/strong> that stamps every submission with your own reference number. No API keys, no accounts, no per-lookup fees.<\/p>\n\n Need more? Blocking free and disposable email providers<\/a><\/strong>, email verification by one-time code<\/a><\/strong>, \u201cOther\u201d options on radio and checkbox fields<\/a><\/strong>, Ecomail newsletter sync<\/a><\/strong>, per-user entry limits<\/a><\/strong> and entry duplication<\/a><\/strong> are PRO features \u2014 see everything PRO adds<\/a>.<\/p>\n\n Check out all the features and documentation at formenhancer.com<\/a>.<\/p>\n\n By upgrading to PRO version<\/a> you\u2019re directly supporting the ongoing development of Form Enhancer. Your license keeps the project alive and independent.<\/p>\n\n Yes! It works with both free and Pro versions.<\/p><\/dd>\n PRO<\/a> starts at 15 USD and adds:<\/p>\n\n Buying PRO is also what keeps this plugin independent and actively developed. See the pricing<\/a>.<\/p><\/dd>\n Currently, no \u2014 this plugin is built specifically for Fluent Forms. Want support for a different builder? Let me know<\/a>.<\/p><\/dd>\n Maybe. Suggest a feature<\/a> and I will get back to you!<\/p><\/dd>\n This plugin uses several external services to validate business identification numbers and VAT numbers. These services are used only when the corresponding validation fields are present in your forms. All these services are publicly available databases, and the company data being validated is publicly accessible information. The plugin only performs validation checks and does not track or store any data during the validation process.<\/p>\n\n ARES (Administration of Registers and Economic Subjects)<\/strong>\nThe plugin connects to ARES, a service provided by the Ministry of Finance of the Czech Republic, to validate Czech business identification numbers (I\u010cO). When a user submits a form containing a Czech I\u010cO field, the plugin sends the I\u010cO number to ARES for validation. This service is essential for ensuring the accuracy of Czech business identification numbers. Terms of Service - Czech only<\/a><\/p>\n\n Finstat<\/strong>\nFor Slovak business identification numbers (I\u010cO), the plugin uses Finstat, a data provider that aggregates and enriches data from the Slovak Business Register, the Statistical Office, and other public sources. When a form containing a Slovak I\u010cO field is submitted, the plugin sends the I\u010cO number to Finstat for verification. This ensures that only valid Slovak business identification numbers are accepted. More info at finstat.sk<\/a><\/p>\n\n VIES (VAT Information Exchange System)<\/strong>\nThe plugin integrates with VIES, a service operated by the European Commission, to validate EU VAT numbers. When a user submits a form containing an EU VAT field, the plugin sends the VAT number (country code + number) to VIES for validation. This service is crucial for ensuring the accuracy of EU VAT numbers. VIES database<\/a><\/p><\/dd>\n If you selected \"Return Format: Form ID\" in your ACF\/SCF field settings, use this code in your template:<\/p>\n\n $form_id = get_field('your_field_name');\nif ($form_id && function_exists('fluentFormRender')) {\n echo fluentFormRender([\"id\" => $form_id])\n}\n `<\/p>\n\n If you selected \"Return Format: Form Object\", you'll get the form data object. To display it, use:<\/p>\n\n $form_object = get_field('your_field_name');\nif ($form_object && function_exists('fluentFormRender')) {\n echo fluentFormRender([\"id\" => $form_object->id])\n}\n `<\/p><\/dd>\n No. VIES, ARES and FinStat are public services and the plugin queries them directly \u2014 there is nothing to sign up for and no per-lookup fee. Bank account and IBAN validation runs entirely on your own server (checksums), so it works offline too.<\/p><\/dd>\n On submission. The EU VAT, I\u010cO and combined CZ\/SK fields call the relevant registry when the form is submitted, so an invalid number is rejected before the entry is stored. Bank account and IBAN fields are checked instantly on your own server, without any external request.<\/p><\/dd>\n Yes. Form Enhancer fields are registered for Conversational Forms, and they can also be used as conditions in the form editor's conditional logic \u2014 except the Unique ID field, whose value only exists after submission (the same as Fluent Forms' own Hidden field).<\/p><\/dd>\n Yes. Form Enhancer fields are stored like any native Fluent Forms field, so their values are available in email notifications, PDF templates, webhooks and every other integration through the usual smart codes.<\/p><\/dd>\n You can report security bugs through the Patchstack Vulnerability Disclosure Program. The Patchstack team helps validate, triage and handle any security vulnerabilities. Report a security vulnerability.<\/a><\/p><\/dd>\n\n<\/dl>\n\n\nFeatures available in the FREE version<\/h3>\n\n
Input fields<\/h3>\n\n
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Functions<\/h3>\n\n
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Integrations<\/h3>\n\n
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\u2b50 PRO version (starting at 15 USD)<\/h3>\n\n
Input fields<\/h3>\n\n
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Integrations<\/h3>\n\n
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Features<\/h3>\n\n
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\/wp-content\/plugins\/formenhancer<\/code>, or install via the WordPress plugin dashboard.<\/li>\n\n
Does it work with the free version of Fluent Forms?<\/h3><\/dt>\n
What do I get in the PRO version?<\/h3><\/dt>\n
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Can I use this with other form plugins?<\/h3><\/dt>\n
I need another feature, could you add it?<\/h3><\/dt>\n
Which external services are used?<\/h3><\/dt>\n
How do I display a Fluent Form using the ACF\/SCF field?<\/h3><\/dt>\n
`php\n<\/code><\/pre>\n\n`php\n<\/code><\/pre>\n\nDo I need an API key or a paid account for the validation?<\/h3><\/dt>\n
When are the numbers validated?<\/h3><\/dt>\n
Does it work with Fluent Forms Conversational Forms?<\/h3><\/dt>\n
Does it work with Fluent Forms Pro features like PDFs and webhooks?<\/h3><\/dt>\n
How can I report security bugs?<\/h3><\/dt>\n
1.5.0 (2026-08-24)<\/h4>\n\n
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1.4.1 (2026-07-15)<\/h4>\n\n