Yesterday Reuven Avi-Yonah presented the above paper, in
front of a packed house. My thoughts upon reading the paper fell into two main
categories:
I. OECD-BEPS
The paper lauds the aims of the OECD-BEPS process, but
concludes that it fell short on both substance and process grounds. I agree to a significant extent, but
(unsurprisingly, given our respective track records) view the issues
differently in some respects.
1) What important principles does OECD-BEPS endorse, and
might it instead have endorsed?
Reuven has long advocated the primacy in international tax
law of what he calls the “single tax principle,” holding that all income should
be taxed exactly once, with the key aim being to avoid both double taxation and
double non-taxation. I question this
principle’s value, at times a bit harshly, in my international tax book, although perhaps I treat it with a bit more sympathy in a recent short
symposium piece.
What’s of interest in the context of the new paper is that
it notes a distinct, although not necessarily irreconcilable, principle, that
guided the OECD-BEPS process. It aimed,
not just at avoiding double non-taxation (although that was a major aim), but
also at “better alignment
of taxation with economic activity and value creation.” For convenience, let’s call this the “alignment
principle.” It holds that each dollar of
income not only should be taxed once, but should be taxed by the “right’ country,
as defined in terms of where the economic activity and value creation occurred.
Also
worth keeping in mind – but in tension with the alignment principle – would be
the idea of defining the source of income on a destination basis (i.e., based
on where the consumers are), rather than on the origin basis (based on where
the production activity occurs). Reuven
has endorsed aspects of this in the past – for example, by suggesting that
sales-based formulary apportionment be used in lieu of transfer pricing. It would tend to source income differently
than the OECD-BEPS alignment principle (which is most plausibly interpreted as
an origin basis approach), but in both cases, if they were operating properly, source determinations
would be less manipulable, and reported profits would be less prone to end up
being assigned to tax havens, than under existing practice.
2) Can OECD-BEPS meet its objectives, and, if not, then
why not?
Reuven is skeptical, as am I, but our grounds for this,
while overlapping, are not identical. In
this regard, we both assign a lot of blame to OECD-BEPS’ retention of the “independent
entity” approach, under which commonly owned affiliates are treated as wholly
separate (reflecting legal form, rather than economic substance) even if they
are engaged in a unitary business. On
the other hand, I am more skeptical than the paper is about the prospects for
multilateral cooperation that centers on any consistent approach.
The paper also criticizes OECD-BEPS’ retention of the traditional
“benefits principle,” which it notes has dominated international tax doctrine
since the 1920s. Under this principle,
when a resident of one country has income in another country, source taxation
has priority in the case of active business income, but residence-based
taxation plays the lead role in the case of passive income. More on this in part 2, below. But I would note that if (as never was even remotely
possible), the OECD-BEPS process had ended up endorsing unitary business
accounting and sales-based formulary apportionment, then – whether this would
have been good or bad on balance – it would have at least made plausible the
argument that, assuming sufficiently widespread adoption, multinationals’ tax
planning to put income in havens would have been significantly set back.
Note, however, that since this would be using a
destination-based rather than an origin-based approach to determining the
source of income, it would have involved not following the “alignment
principle.” Again, however, if the
reason for favoring the alignment principle was to reduce manipulability and
the assignment of accounting profits to tax havens, this still might accomplish
that goal, albeit different means.
3) How well can multilateralism work here?
The paper is far more optimistic about this than I am. It basically says: given tax competition as a
race to the bottom, no country has any real incentive to “defect,” and instead
all should cooperate in finding a workable way of taxing multinationals effectively.
I’d offer two main points in response. First, it’s widely disputed, both in politics
and among academics, how one should define both national and global welfare
with respect to tax policy towards multinationals. Imagine trying to resolve a prisoner’s
dilemma without clarity about how to measure the end-state payoffs to the
players from different sets of choices.
Second, even when cooperation has clear global welfare
benefits for all, and even when it’s not a true prisoner’s dilemma, in the
sense that everyone can observe what everyone else is doing in real time, and
adjust what they are doing accordingly, we don’t always get the cooperation
that seemingly should be in everyone’s interest.
Consider carbon taxes and global warming. Provided that you accept modern science, it’s
clear that all countries “should” agree to a suitable carbon tax. But we don’t exactly see that happening. This is a classic prisoner’s dilemma – apart from
the fact that everyone can see what everyone is doing (or rather not doing) –
in that, say the U.S.’s unilateral incentive is to price carbon only at the
marginal harm to us from climate change.
Why can’t it easily be solved?
Well, you tell me, but it’s even easier to explain why we don’t see a
rush by nations to avoid mutually deleterious international tax competition by
agreeing to a particular consistent global regime.
4) Is “constructive unilateralism” the solution?
The paper argues that the U.S. is still enough of a
quasi-hegemon to overcome the obstacles to multilateral cooperation by going
first (i.e., leading with its chin?).
The basic argument is that, if we reduce our corporate tax rate – say,
to somewhere in the range of 20 to 25 percent – and also repeal deferral – so we
have worldwide residence-based corporate taxation, with foreign tax credits but
also immediate accrual – other countries will follow suit. I am admittedly skeptical that this would be
the upshot of our making this change.
A point of further interest is: What might be going on if,
say, the U.S. adopts a particular rule and other countries are then observed
adopting a similar rule. Is this
constructive unilateralism in practice?
Even assuming a causal link – i.e., it wasn’t either just coincidence or
parallel behavior that perhaps reflected similar, but independently operating,
causes – there are at least 3 different things that might be going on. They have different predictive implications
for a case such as the proposed one where we repeal deferral in the hope that
others (despite having, in many cases, shifted recently towards the territorial
pole) will follow suit.
a) Quasi-hegemony – This is the case where the U.S.
gets something to stick out of raw power or influence. FATCA has had elements of this – the threat
of facing a withholding tax or being effectively shut out of market did indeed
apparently influence lots of players. But
that was a very particular setting.
b) Stealing a good idea – When Apple makes a hit with
the iPhone, its competitors say “Wow, maybe we should do something like that
too.” Indeed, but for patent protection
they would likely do it straight out.
Consider the U.S. adoption of CFC rules (under subpart F) in
1962, which was followed by the spread of CFC rules elsewhere in the
world. As I discuss here, there are reasons of self-interest why countries may want to have CFC rules, as
a way of protecting the domestic tax base.
I would think that this explanation better fits the actual spread of CFC
rules than the hegemon theory.
While countries have reason to protect the tax base by
adopting CFC rules, they also have reason for ambivalence about such rules. Reason 1, they can discourage the use of
resident companies to invest either at home or abroad. Reason 2, they can discourage seeking to
avoid foreign taxes, which is contrary to unilateral national self-interest
unless there is sufficient tie-in to discouraging domestic base erosion.
The U.S. obviously feels this ambivalence as well. Even if it was an accident that our
check-the-box rules greatly weakened our CFC rules, we’ve deliberately allowed
this “mistake” to remain in place for close to twenty years. So the unilateral national self-interest reasons
for having CFC rules, while strong enough to produce widespread adoption of
such rules, evidently are not strong enough to consistently persuade either us
or others to make the rules particularly tough.
(A worldwide regime without deferral would, of course, be the ultimate
set of CFC rules – currently taxing all of one’s CFCs’ income.)
(c) Competing – The U.S. lowered its corporate tax
rate in 1986, and many countries subsequently did the same thing. Suppose we accept that our action in this
regard influenced theirs. The
explanation might be, rather than emulation, affirmative tax competition. Our lowering the rate, and thereby potentially
attracting more inbound investment and reported profits (at least, leaving
aside the base-broadening aspects of the 1986 change) might not only strike
others as a good idea (as under (b) above) but might also make high rates
costlier than previously to our competitors.
Under this scenario, our increasing the U.S. tax burden on U.S.
multinationals’ foreign source income would not necessarily induce other
countries to do the same with respect to their resident multinationals.
II. REVERSING THE “BENEFITS PRINCIPLE”
Returning to the traditional “benefits principle,” recall
the point that, as mentioned by the paper, it was long agreed that active
business income should be taxed mainly on a source basis, and passive income
mainly on a residence basis. The paper proposes reversing this, and taxing active income mainly on a residence basis, passive income mainly on a source basis. Let's start by looking at the traditional regime, and then at the new arguments here.
What did source country priority for active business income actually mean, in an era when tax systems were mainly (at least nominally) worldwide rather than territorial? More particularly, multinationals’ foreign business
operations, even if ultimately subject to home country taxation, would
immediately face source country taxation.
The home country would offer not only deferral (assuming the use of foreign
subsidiaries), but also foreign tax credits.
Passive income, meanwhile, while potentially subject to
source country withholding taxes that were creditable in the residence country,
would often face withholding tax rates significantly below the taxpayers’ home
country income tax rates. Plus, treaties
would typically arrange a reciprocal reduction or even elimination of the
withholding tax for each others’ residents.
For active business income in particular, this approach was often rationalized on “benefits” grounds
that I find unpersuasive. First of all,
benefit is not high on my list of normative tax principles to begin with. Also, it seems to treat inbound active
investment as if it were pollution, imposing costs on the source jurisdiction
that therefore, naturally enough, demands recovery of those costs even if they have
a public goods character and thus are not marginally linked. But countries tend to want inbound
investment, which they may view as having positive externalities associated
with it, so demanding reimbursement under a benefits theory is a bit of an odd
frame here.
A better historical argument for source priority – leaving aside
that this simply happens to be what countries agreed to – was that the source
country was often in a better position to observe and measure locally earned
active business income.
There may also have been an elasticity issue at work
here. Even if companies’ residence was
not, as such, highly elastic in the past, the question of which company (from
which country) would make a given investment may have been susceptible to tax
influence. This factor is washed out,
however, if all would face the same source-based tax. Plus, arguably source was less elastic in the
past, e.g., if high transportation and communications costs meant that one
needed to produce locally.
Nowadays, the source of active business income is clearly
mobile. There’s tax competition, lower
transportation and communications costs, greater importance of highly mobile
intangible factors of production, highly advanced tax planning and
profit-shifting technologies, etc.
Thus, there’s much to gain from taxing active business
income on a residence basis, rather than a source basis, IF there aren’t
similarly bad elasticity problems on that side of the ledger. This is basically what the paper
asserts. The idea is as follows: all
G-20 and EU countries agree to impose worldwide taxation on a residence basis,
with a tax rate of at least 20 percent.
This would eliminate the relevance of corporate residence mobility
except as to (a) tax rate differences within the permissible range (which
therefore might push towards the bottom and (b) tax residence outside this set
of countries. The paper argues, however,
that (b) is not a big problem if all of these countries agree to base corporate
residence on a meaningful “headquarters” rule.
I am skeptical, however, about the prospects for such
agreement, and I’m agnostic about the issue of residence migration outside the
EU plus the G-20 under a meaningful headquarters rule.
Just as an aside, if the paper’s suggested approach were
indeed adopted and succeeded, arguably there would still be effective source
country priority on the taxation of active business income since, with foreign
tax credits still being part of the regime, source countries would have every reason
to impose taxes up to the typical residence company rate.