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π Digital π Society
How digital giants are transforming our societies

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

avec 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​.taxob​ser​va​to​ry​.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​.taxob​ser​va​to​ry​.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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