VAT on digital services, SaaS revenue recognition, the intellectual property regime and profitability per product: what really changes when your product is software.
In short. A Luxembourg software company (software publisher, SaaS, services firm, development agency) has the same baseline obligations as any SME: books under the PCN 2020 chart of accounts, VAT, annual accounts, taxes. But its activity concentrates four sensitive points that generic guides ignore: VAT on digital services sold abroad, the moment a subscription revenue is recognised, the treatment of R&D spending and the intellectual property regime, and finally measuring margin per product. At Advena, we keep these books inside the Odoo we deploy, from 325 € per month, all in.
You publish software, you sell SaaS, you bill development days, or all three at once. On paper, your accounting looks like any Luxembourg Sàrl. In practice, four topics decide whether your books are accurate and how much tax you pay, and they are almost always mishandled. Here, without jargon, is what really changes when your product is intangible, and how to keep it clean in Luxembourg.
What sets a software company's accounting apart
A software company rarely sells an object on a pallet. It sells a licence, a monthly right of use, development hours, or a mix of the three. That intangibility shifts the accounting difficulty away from the usual place (stock, margin on goods) toward three others: where the service is taxed, the date the revenue is earned, and the nature of the spending that builds an intangible asset. On top of that sits a field reality: a large share of a Luxembourg tech company's clients are outside the Grand Duchy, often in another EU member state, sometimes outside the Union. Each border changes the VAT rule.
The foundation itself does not move. You keep double-entry books under the standard chart of accounts, you file your annual accounts with the trade register and you pay tax on your result. That foundation is described in our complete guide to accounting firms in Luxembourg. This article covers what layers on top of it, specific to your trade.
VAT on digital services: the point that costs the most
This is the most frequent error, and the most expensive to unwind. VAT on an IT service does not depend on your Luxembourg rate, but on who your client is and where they are. Three cases come up constantly.
| Your client | VAT treatment, in principle | What you must do |
|---|---|---|
| Taxable business in another EU member state (B2B) | Reverse charge: the service leaves Luxembourg VAT, the tax is due by the client at home | Invoice without VAT and cite the reverse-charge mention, validate the VAT number, report the transaction in the recapitulative statement |
| Consumer in another EU member state (B2C digital) | VAT of the consumer's country, through the One-Stop-Shop (OSS) | Apply the client's country rate and file via OSS, without registering in each country |
| Client outside the European Union | Service in principle outside the scope of Luxembourg VAT | Document the client's place of establishment and keep the evidence |
The B2C digital case is the sneakiest trap. Under the EU rules on electronically supplied services, a SaaS subscription sold to a German consumer carries German VAT, not Luxembourg VAT. The OSS one-stop-shop avoids registering in each country, but you still have to switch it on and set your tool to apply the right rate depending on the buyer's country. A company that charges 17 % to all its EU consumers collects the wrong rate and exposes itself to a correction. The B2B mechanism is detailed in our article on intra-EU VAT in Luxembourg, and the rate schedule in our guide to VAT rates in Luxembourg in 2026.
Recognising revenue at the right time: licence, subscription, time and materials
The second topic stays invisible until closing, then turns brutal. A software company often collects before it has delivered the service: an annual subscription paid up front, a multi-year licence, a project deposit. The accounting rule is clear, the matching principle requires the revenue to be booked over the period the service is actually delivered, not when the cash arrives.
Take a SaaS subscription of 12 000 € invoiced and collected on 1 October for twelve months. If your financial year closes on 31 December, only 3 000 € concern the current year; the remaining 9 000 € are deferred income, sitting on the liability side of the balance sheet, not in the result. Skipping this adjustment inflates your profit, and therefore your tax, on revenue you have not yet earned. Across a portfolio of subscriptions signed throughout the year, the gap quickly runs into tens of thousands of euros of phantom result. We set out this mechanism, and how to automate it, in our article on recurring billing in Odoo.
The other revenue models in your trade each have their own logic: time and materials is recognised as the days are delivered; a fixed-price project follows progress; a perpetual licence is booked in principle on delivery, while its support and maintenance are spread. Mixing these logics in a single revenue account, with no distinction, produces an income statement that nobody can read anymore.
R&D and intellectual property: two levers to handle with method
A company that develops its own software incurs spending that is not simple expense: it builds an asset. Two questions then arise, and neither has an automatic answer.
First, should this spending be booked as expense of the year, or recorded on the balance sheet as an intangible asset, then amortised over its useful life? The choice has a direct effect on the result and on the balance sheet shown to the bank. It depends on precise criteria (identifiability, future economic benefits, reliable measurement of cost) and is decided case by case, not by habit.
Second, Luxembourg has a favourable regime for intellectual property income, set out in article 50ter of the income tax law. Under conditions, this regime allows an exemption of up to 80 % of the net eligible income from certain assets, expressly including copyright on computer software, provided the company itself has carried out substantial research and development (the so-called nexus approach). In other words, owning software is not enough: you must have developed it. This regime can mean a meaningful tax saving for a genuine publisher, but eligibility is assessed file by file and setting it up demands rigorous tracking of development spending. We point you toward that review; we do not settle it in an article.
Developing your own software and wondering whether the IP regime applies to you? We look at your file before claiming anything.
Have my case reviewedKnowing which product actually makes money
A tech company often stacks revenue lines: a SaaS product, custom development, support, sometimes reselling third-party licences. The general income statement tells you how much you make in total; it never tells you which of these products carries the margin and which destroys it. That is exactly what analytic accounting is for: tagging each revenue and each cost (including your developers' hours, via timesheets) to a product or project axis, to read the real profitability of each line.
For a fixed-price services company, the stake is even more direct: a project sold at 20 000 € that eats 35 % more hours than planned is a loss dressed up as turnover, and without an analytic measure it stays invisible inside an otherwise healthy result. We detail this in our articles on analytic accounting in Odoo and on Odoo for services companies in Luxembourg. If your model is mainly consulting billed by time, our guide for consulting companies complements this one.
The Advena difference for a tech company
You know the problem better than anyone: your management tool, your billing and your project tracking live in one system, and your accounting is kept alongside, blind, by a firm that never opens it. The result is double entry, gaps between what is billed and what is booked, and a laborious close every year. We do the opposite. We configure your Odoo (digital VAT, OSS, subscriptions, timesheets, fiscal positions) then keep your books in that same tool, from 325 € per month, all in. The subscription invoice issued today is already tied to the right period, your margin per product reads continuously, and the close holds no surprise. That is the coupling of the ERP and the accounting firm, applied to an activity that, more than any other, lives inside its software.
Who this model is not for
Let us be plain. Our flat fee and real-time books are built for a Luxembourg software company of 1 to 50 employees that wants to steer its activity and secure its tax position. If you are a complex multi-jurisdiction IP holding with transfer-pricing questions between entities, if your transaction volumes are unusually high, or if you only want to file accounts once a year at the lowest price, a specialist firm or another model will suit you better. We would rather tell you at the first meeting.
A tech activity to structure cleanly, from digital VAT to the IP regime? Let's frame it together.
Talk about your companyFrequently asked questions
What VAT applies to a SaaS subscription sold abroad?
It depends on the client. Sold to a taxable business in another EU member state, the subscription falls under reverse charge and is invoiced without Luxembourg VAT. Sold to an EU consumer, it carries the VAT of the consumer's country, filed through the OSS one-stop-shop. Sold outside the European Union, it is in principle outside the scope of Luxembourg VAT. The Luxembourg 17 % rate does not apply to these sales by default.
When is subscription software revenue recognised?
Over the period the service is delivered, not when the cash is collected. An annual subscription invoiced mid-year generates deferred income for the portion that spills into the following year, recorded on the liability side of the balance sheet. Without that adjustment, profit and tax are overstated.
Is software development spending deductible?
R&D costs incurred for the activity are in principle deductible as operating expenses, under the conditions of article 168 LIR set out in our guide to deductible expenses. Depending on the criteria met, some spending may instead be capitalised and amortised rather than expensed: the choice is decided case by case.
Can a software company benefit from a tax break on its income?
Luxembourg provides, under article 50ter LIR, a regime that can exempt up to 80 % of the net eligible income from certain intellectual property assets, including copyright on software, provided the company itself carries out substantial R&D. Eligibility is assessed file by file and requires strict tracking of development spending.
Do you need a specialist accountant for an IT company in Luxembourg?
Not necessarily one labelled "IT", but a firm that masters VAT on digital services, subscription revenue recognition and the configuration of your tool. That is where the costly errors sit, far more than in day-to-day bookkeeping.
Read more
- Accounting firm in Luxembourg: the complete guide for an SME
- Intra-EU VAT in Luxembourg: reverse charge and recapitulative statements
- Recurring billing in Odoo: subscriptions and year-end cut-off
- Analytic accounting in Odoo: profitability by project
- The price of an accounting firm in Luxembourg: flat fee, hourly rates and hidden costs
Why Advena?
We are the only Luxembourg accounting firm that keeps your books in the management tool it deployed at your company. For a tech company, that means digital VAT set up correctly, subscriptions tied to the right period and a readable margin per product, all inside a fee announced up front from 325 € per month, with no hourly billing. We inform on the rule without standing in for formal tax advice, and on a point like the IP regime, we review your file rather than assert.
Tell us what you sell and to whom, we tell you how to keep it clean and what it costs.
Request your flat feeInformation current at 6 August 2026. VAT rates and rules based on the indirect taxation portal of the Registration Duties, Estates and VAT Authority; the intellectual property regime based on article 50ter of the income tax law, published by the direct tax authority. These rules may change and their application depends on your situation: this article informs and is not tax advice.
