3_controleBigTech
π Digital π Society
How digital giants are transforming our societies

Can Big Tech be taxed more? The true, the false and the uncertain

with Martin Collet, Professor at Université Paris Panthéon-Assas
On June 11th, 2025 |
5 min reading time
Martin Collet
Martin Collet
Professor at Université Paris Panthéon-Assas
Key takeaways
  • GAFAM benefit from more advantageous tax regimes than traditional companies in Europe.
  • The lack of unanimity among EU Member States is hindering the adoption of a digital services tax, due to differing priorities.
  • The dematerialised nature of digital services makes it difficult to determine their tax base and locate their profits.
  • While it is often argued that higher taxes in Europe could slow down digital investment, other factors must also be taken into account, such as regulatory stability and access to the European market.
  • The proposed global minimum tax (OECD, G20) aims to reduce the attractiveness of tax havens, but does not completely prevent tax optimisation strategies by certain digital companies.

The digit­al eco­nomy has reshaped glob­al trade, allow­ing com­pan­ies such as Google, Apple, Face­book and Amazon, com­monly referred to as GAFAM, to estab­lish them­selves as key play­ers. How­ever, these mul­tina­tion­als con­tin­ue to bene­fit from tax regimes that are far more favour­able than those avail­able to tra­di­tion­al com­pan­ies in Europe. Accord­ing to the European Com­mis­sion, in a state­ment issued in Janu­ary 2019, digit­al com­pan­ies pay an aver­age effect­ive tax rate of only 9.5%, com­pared with around 23.2% for tra­di­tion­al busi­ness mod­els1. This find­ing is rein­forced by a report from the European Tax­a­tion Obser­vat­ory, which states that des­pite the adop­tion of new inter­na­tion­al rules, large digit­al com­pan­ies con­tin­ue to enjoy effect­ive rates of less than 15% thanks to tax optim­isa­tion strategies2.

This situ­ation high­lights the European Union’s cur­rent inab­il­ity to effect­ively reg­u­late an increas­ingly dema­ter­i­al­ised eco­nomy. Although the OECD, in a report on the digit­al­isa­tion of the glob­al eco­nomy, notes that tra­di­tion­al tax­a­tion based on ter­rit­ori­al­ity no longer meets the needs of a glob­al­ised digit­al eco­nomy3, tan­gible pro­gress remains lim­ited. The main prob­lem remains the estab­lish­ment of a fair and con­sist­ent tax frame­work to counter the aggress­ive tax avoid­ance mech­an­isms used by these giants.

With his expert­ise in inter­na­tion­al tax­a­tion, Mar­tin Col­let, pro­fess­or at the Uni­ver­sity of Par­is-Panthéon-Assas, provides an in-depth ana­lys­is of the chal­lenges of tax­ing GAFAM. His work reveals the incon­sist­en­cies of the glob­al tax sys­tem in the face of the rise of the digit­al eco­nomy, and he warns of the risks of tax dis­tor­tion res­ult­ing from nation­al approaches such as the GAFA tax. His art­icle “Tax­a­tion of the digit­al eco­nomy: glob­al chal­lenge, loc­al responses4?” illus­trates his call for con­cer­ted reform at the inter­na­tion­al level.

#1 Is the lack of unanimity preventing Europe from establishing a coherent digital tax system?

TRUE: “The European Union is unable to introduce harmonised digital taxation due to a lack of unanimity among its Member States.”

The intro­duc­tion of a uni­fied digit­al tax with­in the Coun­cil of the European Uni­on faces a major obstacle: the lack of unan­im­ity among Mem­ber States. As Mar­tin Col­let explains, “when it comes to tax­a­tion, the treat­ies are extremely clear: unan­im­ity is required for a meas­ure to be adop­ted. There are a few excep­tions for indir­ect tax­a­tion, such as VAT and cer­tain taxes on alco­hol, but unan­im­ity is required for oth­er tax meas­ures.” This prin­ciple allows a single coun­try to block the adop­tion of a reform. For example, in 2019, Ire­land, Sweden and Den­mark vetoed the pro­posed digit­al ser­vices tax5. Such diver­gence between states reflects con­flict­ing pri­or­it­ies: some seek to pre­serve their tax com­pet­it­ive­ness, while oth­ers want a more equit­able dis­tri­bu­tion of tax revenues.

Des­pite renewed efforts by the European Com­mis­sion in 2021, as part of its “Com­mu­nic­a­tion on Busi­ness Tax­a­tion for the 21st Cen­tury6,” no uni­fied plan has been agreed upon to date.

UNCERTAIN “The technical difficulties involved in defining and locating digital revenues are the main obstacle to fair European digital taxation.”

Tech­nic­al chal­lenges exist, but they are not the only ones hinder­ing the adop­tion of har­mon­ised digit­al tax­a­tion. The dema­ter­i­al­ised nature of digit­al ser­vices com­plic­ates the iden­ti­fic­a­tion of the tax base and loc­a­tion of profits. In this regard, Mar­tin Col­let states that it is neces­sary to: “Dis­tin­guish between dif­fer­ent types of tax­a­tion (on profits, turnover, etc.). The main prob­lem lies in the dif­fi­culty of tax­ing the profits of com­pan­ies whose main activ­ity is loc­ated in low-tax jur­is­dic­tions, such as Ire­land.” This struc­ture makes it pos­sible to arti­fi­cially min­im­ise the tax bur­den, to the det­ri­ment of coun­tries where the income is actu­ally generated.

7

Added to this is the fact that “large digit­al com­pan­ies have incor­por­ated tax con­sid­er­a­tions into their organ­isa­tion from the out­set. They loc­ate their intan­gible assets (pat­ents, algorithms) in low-tax jur­is­dic­tions, which sig­ni­fic­antly reduces their tax bur­den because sub­si­di­ar­ies estab­lished in these ter­rit­or­ies absorb most of the rev­en­ue.” This optim­isa­tion phe­nomen­on goes bey­ond mere tech­nic­al dif­fi­culties: it reveals a strategy that is deeply embed­ded in their busi­ness model.

The reform can­not there­fore be lim­ited to tech­nic­al adjust­ments; it requires a more ambi­tious over­haul. “The inter­na­tion­al tax prin­ciples in force date back to the 1920s. They require a phys­ic­al pres­ence to jus­ti­fy tax­a­tion by a state. These prin­ciples are now out­dated in the con­text of the digit­al economy.”

#2 Taxing digital giants: a risk to Europe’s economic attractiveness?

UNCERTAIN: “Heavily taxing digital giants would jeopardise Europe’s economic attractiveness vis-à-vis the United States and Asia.”

The idea that heav­ier tax­a­tion could dis­cour­age digit­al invest­ment is reg­u­larly raised. Mar­tin Col­let notes that: “Some coun­tries believe that increas­ing sec­tor­al taxes is not appro­pri­ate, as it hinders cer­tain eco­nom­ic activ­it­ies.” How­ever, oth­er factors such as reg­u­lat­ory sta­bil­ity and access to the European mar­ket also play an import­ant role in com­pan­ies’ decisions on where to loc­ate. Fur­ther­more, a country’s com­pet­it­ive­ness does not depend solely on its tax rates, but on a mul­ti­tude of eco­nom­ic and polit­ic­al factors.

The out­come of a high­er tax on attract­ive­ness remains dif­fi­cult to pre­dict. This phe­nomen­on is all the more com­plex because, as the lec­turer and research­er points out, “some com­pan­ies prefer to loc­ate their activ­it­ies in coun­tries with more flex­ible tax­a­tion, such as Ire­land, which allows them to sub­stan­tially reduce their tax bur­den.” It is there­fore neces­sary to take many para­met­ers into account when assess­ing the con­sequences of European tax reform.

FALSE: “Digital giants pay taxes in Europe that are proportional to their profits on the continent.”

Digit­al com­pan­ies still bene­fit from an effect­ive tax rate of less than 15%, accord­ing to the European Tax Obser­vat­ory8, mainly through optim­isa­tion mech­an­isms. By loc­at­ing their profits in low-tax coun­tries such as Ire­land, they avoid tax­a­tion pro­por­tion­al to their actu­al activ­ity, widen­ing tax dis­par­it­ies with­in the EU.

Regard­ing the French tax, Mar­tin Col­let explains: “In terms of budget­ary rev­en­ue, its impact is not insig­ni­fic­ant: in France, the tax brings in between €300m and €500m per year. How­ever, a large part of this cost is passed on and there­fore borne by French users, not by the com­pan­ies themselves.”

There is no har­mon­ised GAFA tax at European level

Nev­er­the­less, he also points out that “the polit­ic­al impact of these taxes is con­sid­er­able. They have helped to accel­er­ate inter­na­tion­al dis­cus­sions and have led to pro­gress such as the adop­tion in Europe of a dir­ect­ive impos­ing a min­im­um tax rate of 15% on profits made in tax havens. They have exer­ted sig­ni­fic­ant polit­ic­al pres­sure on the United States and helped to advance the inter­na­tion­al tax reform project.”

#3 Do the tax reforms currently underway enable us to overcome the challenges posed by digital technology?

FALSE: “The European GAFA tax is already in place and is working effectively to tax large digital companies.”

There is no har­mon­ised GAFA tax at European level. Although some coun­tries, such as France, Italy and Spain, have intro­duced nation­al taxes on digit­al ser­vices9, these ini­ti­at­ives have not led to har­mon­isa­tion of the European mar­ket. While use­ful for loc­al applic­a­tion, these taxes cre­ate frag­ment­a­tion in tax regimes and do not allow digit­al giants to be taxed effect­ively at the European level.

Fur­ther­more, “these com­pan­ies have struc­tured their activ­it­ies to take advant­age of tax dif­fer­ences between coun­tries,” warns Mar­tin Col­let. “This makes their tax­a­tion much more com­plex and reduces the effect­ive­ness of any reform.” The lack of tax coordin­a­tion with­in the EU there­fore remains a major obstacle. In 2021, the European Com­mis­sion sus­pen­ded its digit­al tax pro­pos­al pending inter­na­tion­al nego­ti­ations on a glob­al min­im­um tax10.

FALSE: “Recent international tax reforms, notably the global minimum tax, will automatically solve the European digital taxation problem.”

The glob­al min­im­um tax pro­ject, nego­ti­ated by the OECD and the G20 (“Pil­lar 2”), aims to set a min­im­um tax rate of 15% for mul­tina­tion­als11. How­ever, this reform does not spe­cific­ally tar­get digit­al com­pan­ies and provides for sev­er­al excep­tions, which lim­its its effect­ive­ness. Even if this ini­ti­at­ive reduces the attract­ive­ness of tax havens, it does not entirely pro­hib­it the tax optim­isa­tion strategies used by some digit­al companies.

It is in this sense that Mar­tin Col­let warns against excess­ive optim­ism. “Although this reform may have pos­it­ive effects, it will not entirely resolve tax inequal­it­ies with­in the EU. The main­ten­ance of attract­ive tax regimes in cer­tain coun­tries, such as Ire­land and the Neth­er­lands, con­tin­ues to under­mine the effect­ive­ness of the reform.”

Aicha Fall
1European Com­mis­sion, Towards a more effi­cient and demo­crat­ic European tax policy, COM(2019)8 final, 15 Janu­ary 2019 – https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A52019DC0008
2EU Tax Obser­vat­ory, Glob­al Tax Eva­sion Report 2024, April 2024 – https://​www​.tax​ob​ser​vat​ory​.eu/​f​r​/​p​u​b​l​i​c​a​t​i​o​n​/​g​l​o​b​a​l​-​t​a​x​-​e​v​a​s​i​o​n​-​r​e​p​o​r​t​-​2024/
3OECD, Tax Chal­lenges Arising from the Digit­al­isa­tion of the Eco­nomy – 2024, https://​www​.oecd​.org/​e​n​/​t​o​p​i​c​s​/​p​o​l​i​c​y​-​i​s​s​u​e​s​/​b​a​s​e​-​e​r​o​s​i​o​n​-​a​n​d​-​p​r​o​f​i​t​-​s​h​i​f​t​i​n​g​-​b​e​p​s​.html
4Mar­tin Col­let, La fisc­al­ité de l’économie numérique : enjeu glob­al, réponses loc­ales ?, Revue Européenne du Droit, 2021. ‑https://droit.cairn.info/revue-red-2021–1‑page-148
5The Irish Times, “Plans for EU digit­al tax aban­doned until end of 2020”, March 2019. https://www.irishtimes.com/business/health-pharma/plans-for-eu-digital-tax-abandoned-until-end-of-2020–1.3823201
6European Com­mis­sion, Com­mu­nic­a­tion on Busi­ness Tax­a­tion for the 21st Cen­tury, May 2021.https://​ec​.europa​.eu/​t​a​x​a​t​i​o​n​_​c​u​s​t​o​m​s​/​b​u​s​i​n​e​s​s​/​c​o​m​p​a​n​y​-​t​a​x​a​t​i​o​n​/​b​u​s​i​n​e​s​s​-​t​a​x​a​t​i​o​n​-​2​1​s​t​-​c​e​n​t​u​ry_en
7Cred­its: Florence Piot – stock​.adobe​.com
8EU Tax Obser­vat­ory, Glob­al Tax Eva­sion Report 2024.https://​www​.tax​ob​ser​vat​ory​.eu/​g​l​o​b​a​l​-​t​a​x​-​e​v​a​s​i​o​n​-​r​e​p​o​r​t​-2024
9Ibid.
10European Com­mis­sion, Com­mis­sion work pro­gramme on digit­al levy post­poned, July 2021. https://​ec​.europa​.eu/​c​o​m​m​i​s​s​i​o​n​/​p​r​e​s​s​c​o​r​n​e​r​/​d​e​t​a​i​l​/​e​n​/​I​P​_​2​1​_3311
11OECD, Tax Chal­lenges Arising from the Digit­al­isa­tion of the Eco­nomy – 2024 https://​www​.oecd​.org/​t​a​x​/​t​a​x​-​c​h​a​l​l​e​n​g​e​s​-​a​r​i​s​i​n​g​-​f​r​o​m​-​t​h​e​-​d​i​g​i​t​a​l​i​s​a​t​i​o​n​-​o​f​-​t​h​e​-​e​c​o​n​o​m​y​-​2​0​2​4​-​u​p​d​a​t​e.htm

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