Best ksef plugins for WordPress
The most popular ksef plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Flexible PDF Invoices for WooCommerce & WordPress leads with 6K+ active installs, ahead of Flexible Invoices for WooCommerce (700+) and POP (90+). All 12 plugins tagged “ksef” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
Research this niche or see all plugins.
Top 10 ksef plugins
- 1.
Flexible PDF Invoices for WooCommerce & WordPressThe most installed ksef plugin, with 6K+ active installs. Rated 4.4 from 37 reviews, updated 1 day ago.
- 2.
Flexible Invoices for WooCommerce700+ active installs. Only 1 review so far, updated 4 days ago.
- 3.
POP90+ active installs. Rated 4.9 from 15 reviews, updated 1 week ago.
- 4.
Polski for WooCommerce60+ active installs. Rated 4.8 from 10 reviews, updated 3 days ago.
- 5.
B2Brouter for WooCommerce10+ active installs. Only 1 review so far, updated 5 months ago.
- 6.
Nestero Integration for FakturowniaFewer than 10 active installs. No reviews yet, updated 1 week ago.
- 7.
Yzukar B2B Invoice Fields for KSeFFewer than 10 active installs. No reviews yet, updated 2 months ago.
- 8.
DekleraFewer than 10 active installs. No reviews yet, updated 1 month ago.
- 9.
Brightfern E-Invoicing for WooCommerceFewer than 10 active installs. No reviews yet, updated 1 month ago.
- 10.
ByteWave FakturyFewer than 10 active installs. No reviews yet, updated 3 days ago.
All 12 plugins tagged “ksef”
Flexible PDF Invoices for WooCommerce & WordPress
Down in the last 7 days:3#2,800by wpdesk1 day ago
WooCommerce PDF invoices made simple. EU VAT validation, reverse charge invoice, proforma invoices, MOSS / OSS support, invoices in bulk and more.
- Installs
- 6K+
- Rating
- 4.4(37)
- Downloads
- 170/day
Flexible Invoices for WooCommerce
Up in the last 7 days:53#7,747by wpdesk4 days ago
Easily send invoices from Flexible Invoices straight to KSeF using the official Ministry of Finance API.
- Installs
- 700+
- Rating
- 4.0(1)
- Downloads
- 77/day
POP
Up in the last 7 days:319#16,942by POP10 days ago
Turn WooCommerce orders into compliant e-invoices: XML/PDF free, delivery to SdI, PEPPOL, KSeF, ZUGFeRD.
- Installs
- 90+
- Rating
- 4.9(15)
- Downloads
- 23/day
Polski for WooCommerce
Down in the last 7 days:614#20,024by WPPoland (Mariusz Szatkowski)3 days ago
WooCommerce for Polish shops: VAT invoices, JPK_FA, KSeF, NIP lookup, GPSR, Omnibus, withdrawals, returns and unit prices.
- Installs
- 60+
- Rating
- 4.8(10)
- Downloads
- 91/day
B2Brouter for WooCommerce
#31,282by B2Brouter5 months ago
Electronic invoicing for WooCommerce. Compliance for Spain (Verifactu), France (DGFiP) and Poland (KSeF). EU + UK invoicing.
- Installs
- 10+
- Rating
- 5.0(1)
- Downloads
- 6/day
Nestero Integration for Fakturownia
Up in the last 7 days:9,130#54,682by nestero13 days ago
Automatic VAT invoices in Fakturownia.pl for WooCommerce orders: tax number at checkout, PDF by e-mail, no duplicate documents.
- Installs
- <10
- Rating
- –
- Downloads
- 8/day
Yzukar B2B Invoice Fields for KSeF
Up in the last 7 days:10,831#59,392by rakuzy2 months ago
Collect the Polish NIP and B2B invoice data at checkout, validate the NIP checksum locally, export orders to CSV. Classic and block checkout.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
Deklera
#59,779by ekremtekerek1 month ago
Which WooCommerce orders would be rejected as e-invoices? Find out before you issue them. XRechnung, ZUGFeRD/Factur-X, KSeF.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
Brightfern E-Invoicing for WooCommerce
#61,852by ombel1 month ago
Generate, validate and receive EN 16931 e-invoices in WooCommerce — Peppol, XRechnung, Factur-X and Poland's KSeF, checked before you send.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
ByteWave Faktury
Down in the last 7 days:3,917#66,156by ByteWave3 days ago
WooCommerce integration with the Polish National e-Invoice System (KSeF). Generate, send and manage structured XML e-invoices.
- Installs
- <10
- Rating
- –
- Downloads
- 6/day
Ksefshop Invoices for WooCommerce
Down in the last 7 days:7,277#70,155by Ksefshop13 days ago
Issues Polish KSeF e-invoices (FA(3)) for paid WooCommerce orders with a NIP via the Ksefshop service: NIP at checkout, refund corrections, PDF.
- Installs
- <10
- Rating
- –
- Downloads
- 6/day
FakturFlow
Up in the last 7 days:2,344#70,588by SYMONOV1 month ago
Issue KSeF structured e-invoices (FA(3)) straight from WooCommerce orders — no intermediaries, no per-invoice fees.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day