Rachel Reeves will almost certainly have to raise taxes in the next budget. That budget is too far away to get into specific tax proposals, but there has already been discussion about how these tax increases should be approached. There seem to be three main options:
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Raise various specific taxes that it can be argued do not contradict Labour’s pledge not to raise taxes on working people. This was the approach the Chancellor took in the last budget.
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Break that pledge, and raise one of the main taxes Labour pledged not to increase
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Embark on a process of general tax reform, modernising and simplifying the tax system and raising overall taxes at the same time. This reform could be designed to appear not to break the pledge.
Economists have long argued that (3) is overdue. Having a series of Chancellors from Osborne onwards who are more interested in politics than having an efficient tax system has ensured that the UK tax regime is in a bit of a mess, and inefficiency can be an important negative for output and growth. Two recent advocates of (3) are Will Dunn and Martin Sandbu, but the IFS among other experts has consistently argued for changes that move towards (3).
Two aspects of the UK tax system stand out as being in drastic need of reform. The first is council taxes. Council taxes are based on valuations made in 1991, when houses in the North and Midlands were relatively more valuable compared to London and the South than they are today. With revaluation, those tax payers in the North and Midlands would gain, while those in London, the South East and a few areas in the South and East Anglia would lose out.
In addition, council tax is regressive in the sense that it is a much higher percentage of a property's value for low value houses than higher value houses. Making council tax proportionate to the value of a house while keeping revenue unchanged would help low to middle income earners while those at the top of the income distribution would lose out.
The second major anachronism of the UK’s tax system is that we have two forms of income tax: what is called income tax, which is paid by anyone with an income, and personal national insurance contributions (NICs), which are paid by those in work but not by pensioners or landlords, for example. The reason we have the two systems is because of the idea that workers contribute to their pensions. But this is a fiction. Today’s pensions are paid for by today’s taxpayers, not by pensioners when they were working. Our state pension is an unfunded scheme, meaning there is no pension pot which those paying NICs contribute to, and which then pays out as their state pension.
We can see this is a fiction because there is no linkage between what pensioners receive and what employees pay in NICs. The last government cut NICs, but they didn’t cut current or future pensions. Under the last Labour and Conservative governments NICs were raised to pay for more funding for the NHS, not higher pensions
The obvious reform is therefore to abolish personal NICs and raise income tax. However the political reason why this hasn’t happened yet is obvious: a revenue neutral reform would mean those working would generally pay less, but pensioners would pay significantly more than they are currently. Problems like this generate a kind of received wisdom regarding major tax reforms, which is that they are only possible to do when the government has ‘money to give away’ which it can use to compensate losers. According to this received wisdom it is not something you do when the government needs to raise money (or, for MMTers, when the government doesn't want to encourage the Bank of England to keep rates higher).
However Martin Sandbu argues the opposite. He writes
“Every tax tweak produces winners and losers. With the incremental changes pursued by Labour so far, the losers (comfortable pensioners, rich farmland owners, and the disabled poor) have been loud and identifiable interest groups, while the winners (taxpayers and the economy at large) were neither. So the squeaky wheel gets the political grease.
In a comprehensive overhaul, in contrast, most people would gain from some changes and lose from others. If well designed, the gains should be larger than the losses. That would make it much harder to mount targeted, single-issue political resistance of the kind that has made the government back down before.”
In other words, (3) is easier to get away with than (1). I read this as a version of the ‘common pool’ problem. When a farmer loses their tax break on inheritance tax, for example, this matters a great deal to them, but the benefits to every other tax payer is so small and so widely spread they are hardly noticed. I’ve argued a similar problem exists with high pay. With wholesale tax reform there are clear winners and losers, and so the tax change has a clear group of people fighting for it as well as a clear group of people fighting against it.
These two examples of tax reform discussed above illustrate the merits or otherwise of Sandbu’s argument quite well. A Labour government might be prepared to see a redistribution of council tax that favoured the North relative to the South, and the poor relative to the rich. However no government would be happy landing pensioners with higher income tax, by an amount that would in financial terms make the winter fuel payment look like peanuts. The two obvious reasons are that pensioners are more likely to vote than other age groups, and pensioners predominantly read newspapers that produce anti-Labour pro-populist propaganda.
There is a common problem with both approaches (1) and (3). They make any public debate about fairness. With (1) it is why should this particular and generally small group get hit, with as I noted here the focus in the media on the most sympathetic hardship cases. Sandbu is right to point out that the question ‘who should pay higher taxes instead’ is rarely raised. With (3) and in the absence of expensive compensation large groups of people will be worse off, and almost everyone in those groups will think that is unfair and will think any beneficiaries of the reform don’t deserve to be better off.
The big advantage of (2) is that pain is more evenly spread, so the focus of the discussion moves from fairness to become a question of do we want to pay for better public services. I’ve argued before, following the experience of Brown’s NIC increase under the last Labour government, that this is a debate Labour can win. But the case has to be made, otherwise the media will just talk about higher taxes required to fill black holes which pleases no one.
While reforming council tax would be both economically desirable and politically possible, I suspect Labour will avoid any major tax reform. This Prime Minister and Chancellor just don’t seem like the kind of politicians who would undertake politically risky major changes of this kind. They have also missed two good opportunities to break their pre-election tax pledges, so it seems unlikely they will do so now unless they run out of other options. So I suspect we will see a repeat of last year’s budget (1 above), with specific taxes raised on ‘non-working people’. That makes it all the more likely that the budget will be seen as more fiscal firefighting to fill black holes rather than a budget about expanding public services, and so is unlikely to be any more successful politically than what has gone before.