NIF (Num. de Contribuinte Português) for WooCommerce
This plugin adds the Portuguese NIF/NIPC as a new field to WooCommerce checkout and order details, if the billing address / customer is from Portugal.
Safe pick
Yes — NIF (Num. de Contribuinte Portu… is a safe, well-maintained plugin to use in 2026. It runs on 5K+ sites, is rated 5/5 and was last updated 1 month ago, and scores 80/100 on our health check.
- Tested with the latest WordPress (7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where NIF (Num. de Contribuinte P… stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| ecommerce | >100 |
| nif | #2 |
| nipc | #1 |
| tax | #27 |
| vat | #15 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 5 from 8 reviews
About NIF (Num. de Contribuinte Português) fo…
From the official readme · v8.3Description
This plugin adds the Portuguese VAT identification number (NIF/NIPC) as a new field to WooCommerce checkout and order details, if the billing address is from Portugal.
Features:
- Adds the Portuguese VAT identification number (NIF/NIPC) to the WooCommerce Checkout fields, Order admin fields, Order Emails and “Thank You” page;
- It’s possible to edit the customer’s NIF/NIPC field on “My Account – Billing Address” and on the User edit screen on wp-admin.
- NIF/NIPC check digit validation (if activated via filter, or block option)
- WooCommerce High-Performance Order Storage compatible
- WooCommerce Checkout Block compatible
Do you also sell to businesses in other European Union countries?
Get to know VAT Number and EU VIES Validation for WooCommerce, our premium plugin for the whole European Union. It collects the customer VAT identification number, pre-validates it on your own server, confirms it against VIES and removes VAT on qualifying intra-EU B2B orders.
It is a replacement for this plugin rather than an add-on to it, and its Zero-Touch Migration reads the numbers this plugin has already stored, so there is nothing to export, import or schedule: the numbers convert themselves as customers come back.
Launch offer: 50% off the first year, or 25% off a lifetime licence.
Are you already issuing automatic invoices on your WooCommerce store?
If not, get to know our new plugin: Invoicing with InvoiceXpress for WooCommerce
Already know our other WooCommerce (premium) plugins?
- VAT Number and EU VIES Validation for WooCommerce – Collect and validate VAT identification numbers for the whole European Union, confirm them against VIES and remove VAT on qualifying intra-EU B2B orders
- Portuguese Postcodes for WooCommerce – Automatic filling of the address details at the checkout, including street name and neighborhood, based on the postal code
- Invoicing with InvoiceXpress for WooCommerce – Automatically issue invoices directly from the WooCommerce order
- DPD Portugal for WooCommerce – Create shipping and return guide in the DPD webservice directly from the WooCommerce order
- Feed KuantoKusta for WooCommerce – Publish your products on Kuanto Kusta with this easy to use feed generator
- Multibanco, MBWAY, Credit card, Payshop and Cofidis Pay for WooCommerce – PRO add-on – Extra features for the plugin you already trust to receive payments on your WooCommerce store
- Simple Checkout Fields Manager for WooCommerce – Add custom fields and manage (remove, make required or optional) core fields on the new WooCommerce Block-based Checkout
- Simple WooCommerce Order Approval – The hassle-free solution for WooCommerce order approval before payment
- Shop as Client for WooCommerce – Quickly create orders on behalf of your customers
- Taxonomy/Term and Role based Discounts for WooCommerce – Easily create bulk discount rules for products based on any taxonomy terms (built-in or custom)
- DPD / SEUR / Geopost Pickup and Lockers network for WooCommerce – Deliver your WooCommerce orders on the DPD and SEUR Pickup network of Parcelshops and Lockers in 21 European countries
Installation
- Use the included automatic install feature on your WordPress admin panel and search for “NIF WooCommerce”.
Frequently asked questions
How to make the NIF field required?
Classic checkout – Add this to your theme’s functions.php file or code snippets plugin: add_filter( 'woocommerce_nif_field_required', '__return_true' ); Blocks checkout – Activate the “Required” option on the NIF block.
Is it possible to validate the check digit to ensure a valid Portuguese NIF/NIPC is entered by the customer?
Yes, it is! Classic checkout – Add this to your theme’s functions.php file or code snippets plugin: add_filter( 'woocommerce_nif_field_validate', '__return_true' ); Blocks checkout – Activate the “Validate” option on the NIF block. We only recommend validating the NIF if your shop only sells to Portugal.
How to change the NIF field position on the checkout?
Classic checkout – Add this to your theme’s functions.php file or code snippets plugin: add_filter( 'woocommerce_nif_field_priority', function( $priority) { // Default is 120 - Adjust the number to move the field up (lower number) or down (higher number) return 120; } ); Blocks checkout – For now, the block is fixed after the billing address and before the shipping options. We’re working on making it possible to move the block where you want. Future instructions for the Block checkout – Move the NIF block up or down as wanted. We do not recommend moving this field above the billing and…
Is this plugin compliant with the new EU General Data Protection Regulation (GDPR)?
First of all, it’s the website owner’s responsibility to make your whole website compliant because no personal details whatsoever are transmitted to us, the plugin developers. Anyway, we can help you by documenting how this plugin handles the collected data: * The NIF/NIPC field is collected via the checkout process and stored as an order meta value, alongside all the other WooCommerce order fields; * The NIF/NIPC field can also be set on the “My Account – Billing Address” form and it’s then stored as a user meta value, alongside all the other WordPress and WooCommerce user fields; * The…
I need help, can I get technical support?
This is a free plugin. It’s our way of giving back to the wonderful WordPress community. There’s a support tab on the top of this page, where you can ask the community for help. We’ll try to keep an eye on the forums but we cannot promise to answer support tickets. If you reach us by email or any other direct contact method, we’ll assume you need premium, paid-for support.
Where do I report security vulnerabilities found in this plugin?
You can report any security bugs found in the source code of this plugin through the Patchstack Vulnerability Disclosure Program. The Patchstack team will assist you with verification, CVE assignment and take care of notifying the developers of this plugin.
Changelog
8.3 – 2026-08-26
- [NEW] There is now an alternative to this plugin for shops selling to businesses across the European Union: VAT Number and EU VIES Validation for WooCommerce, our premium plugin, which validates VAT identification numbers for every EU country, confirms them against VIES and removes VAT on qualifying intra-EU B2B orders, and whose Zero-Touch Migration reads the numbers this plugin already stored so there is nothing to export or import. It is introduced through a dismissible notice, which is never shown if that plugin is already active
- [DEV] Tested up to WordPress 7.2-alpha-63347 and WooCommerce 11.1.0-beta.2
8.2 – 2026-08-24
- [FIX] The optional NIF prefix check now uses the complete list of prefixes issued by the Autoridade Tributária (1, 2, 3, 45, 5, 6, 70, 71, 72, 74, 75, 77, 78, 79, 8, 90, 91, 98 and 99). It previously rejected valid numbers belonging to non-residents, undivided estates and investment funds, and accepted 92 to 97, which are never issued. This check only runs when
woocommerce_valida_nif()is called with its second argument set to false, so the default behaviour is unchanged - [FIX] Blocks checkout: the invalid NIF message now keeps any formatting or links added through the
woocommerce_nif_invalid_messagefilter, instead of showing the markup as plain text - [DEV] Bundled ifthenpay suggestion module updated
- [DEV] Tested up to WordPress 7.2-alpha-63323 and WooCommerce 11.1.0-beta.1
8.1 – 2026-08-02
- [FIX] Blocks checkout: NIF is now also validated server-side when the order is processed, not just client-side, so a missing or invalid NIF can no longer be submitted with JavaScript disabled or by calling the Store API directly
- [DEV] Bundled ifthenpay suggestion module updated
8.0 – 2026-06-22
- [NEW] Complete rewrite the blocks checkout field for performance
- [FIX] Blocks checkout: validation error no longer appears while typing — it shows only after leaving the NIF field
- [FIX] Blocks checkout: NIF is now validated client-side for instant feedback, without waiting for a server round-trip
- [FIX] Blocks checkout: “Place Order” button no longer flickers during typing (debounced server sync)
- [FIX]
woocommerce_nif_invalid_messagefilter now applied in the “My Account” billing address save path, consistent with the checkout - [FIX] WordPress Coding Standards improvements in bundled modules (nonce on admin notice dismiss, safe HTML output)
- [DEV] Tested up to WordPress 7.1-alpha-62536 and WooCommerce 10.9.0-beta.2
7.3 – 2026-06-15
- [FIX] NIF saved on the customer’s profile / “My Account” billing address wasn’t pre-filled on the WooCommerce Checkout Block
- [FIX] NIF field markup on the WooCommerce Checkout Block didn’t match the standard checkout step structure (heading container)
- [DEV] Removed the unused/stale
PTWOO_NIF_VERSIONconstant; checkout block assets now version off the plugin header version - [DEV] Tested up to WordPress 7.1-alpha-62456 and WooCommerce 10.9.0-beta.1
7.2 – 2026-04-12
- [FIX] PHP fatal error, introduced in 7.0, in specific scenarios
- [FIX] Version number
For developers
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FAQ
NIF (Num. de Contribuinte Português…: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 28, 2026
Is NIF (Num. de Contribuinte Portu… free?
Yes. NIF (Num. de Contribuinte Portu… is free to download and use from the official WordPress.org plugin directory.
Is NIF (Num. de Contribuinte Portu… safe to use in 2026?
Yes — NIF (Num. de Contribuinte Portu… is a safe, well-maintained plugin to use in 2026. It runs on 5K+ sites, is rated 5/5 and was last updated 1 month ago, and scores 80/100 on our health check.
How many websites use NIF (Num. de Contribuinte Portu…?
NIF (Num. de Contribuinte Portu… is active on 5K+ WordPress websites and has been downloaded 106,676 times since it launched in December 2013. It was downloaded 1,886 times in the last 30 days.
Does NIF (Num. de Contribuinte Portu… work with WordPress 7.1?
Yes. The developer has tested NIF (Num. de Contribuinte Portu… up to WordPress 7.1.2, the latest release. It requires WordPress 5.8 or newer.
What PHP version does NIF (Num. de Contribuinte Portu… need?
NIF (Num. de Contribuinte Portu… requires PHP 7.2 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was NIF (Num. de Contribuinte Portu… last updated?
The latest version, 8.3, was released on August 26, 2026 (1 month ago).
Who makes NIF (Num. de Contribuinte Portu…?
NIF (Num. de Contribuinte Portu… is developed and maintained by Naked Cat Plugins.
What are the best alternatives to NIF (Num. de Contribuinte Portu…?
The most popular alternatives to NIF (Num. de Contribuinte Portu… are WooCommerce (7M+ installs), Popup Builder & Popup Maker… (1M+ installs) and WooCommerce PayPal Payments (800K+ installs).
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