Easy way to enhance SAP

Easy to implement SAP Add-Ons with built-in connectors.

“Ready to run SAF-T and E-Invoicing with built-in connectivity SAP Add-ons”

Norway SAF-T SAP Solution

NORWAY SAF-T Financial SAP Add-On

SAP solution for Norway SAF-T Financial which leads creation of the legal XML letting you manage auditing process in SAP environment in a flexible way.

UK MTD SAP Solution

UK MTD SAP Add-On to Make Tax Digital

Connect your SAP to HMRC and submit your VAT record with built-in OAuth 2.0 authentication inside SAP.

Hungary RTIR SAP Solution

HUNGARY SAP Add-On For Real Time Invoice Registration

Create and send invoices to Hungary Tax Authority (NTCA) in SAP without need any other tool with the legal XML format.

Built in connector

S4FN creates add-ons for SAP which don't force you to use cloud integrations or third party integrations

Designed to implement easily

Add-Ons with some basic settings are ready to run. No-update or note implementaion is required.

Developed in own namespace

All objects are in S4FN's own namespace /s4fn. S4FN objects doesn't interfere with SAP objects.

Get your product flyer

Choose the product your are interested. We will automatically send you the product flyer.
In the flyer you will find some important details about the product.

SII Spain


Italy FatturaPA

Hungary RTIR

Norway SAF-T

Lithuania SAF-T


We have lots of experience
building SAP add-ons.

We've created add-ons to easyly connect e-invoicing systems of the tax agencies and SAF-T reporting.

E-invoicing since 2011

We've been developing e-invoicing applications since 2011.

SAF-T Applications

Begining with e-ledger in Turkey, Poland JPK, Lithania SAF-T, Norway SAF-T we are developing SAF-T applications since 2011.


Blog posts

See our blog posts for latest news.

JPK Poland An Overview

The Single File Control (ang. Standard Audit File-Tax – SAF-T) is a collection of data that is created from the information systems business entity through direct export of data, including information on business operations for the period, having a standardized layout and format (XML schema) allows its easy processing.

Making Tax Digital HMRC MTD SAP Add On

Making Tax Digital (MTD) in the UK, is HMRC’s new digitally advanced tax system. In the first phase, MTD focuses on VAT and all businesses with a turnover above the VAT threshold are required to keep digital records and submit VAT returns electronically through MTD compliant software like S4FN MTD UK SAP add-on.

MTD UK Making Tax Digital

Making Tax Digital Making Tax Digital is the government’s plans to make it easier to submit their tax. HMRC is aiming to be one of the most digitally advanced tax administrations in the world.

UK MTD Adjustments Making Tax Digital

According to VAT Notice 700/22: Making Tax Digital for VAT you can make adjustments to VAT submission. Below the excerpt from the notice

Italy FatturaPA Regulation

Italy FatturaPA regulation and obligations for VAT compliance are in effect, regarding the provision of products or services delivered by entities that are resident, established or VAT registered in Italy.

Italy FatturaPA Solution From S4FN

The Budget Law 2018 (the ‘Budget Law’) was published in the Official Gazette on 29 December 2017 and came into force on 1 January 2018. With this law, many new VAT measures have been announced...

Meet with S4FN add-ons and save your time.

Stop wasting time trying to do upgrades, implement notes, and implement exits. S4FN is ready to use, easier to fit, you don't obliged to use cloud services and you have complete control.

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