There are problems with wealth taxes but avoidance, for once, isn't one of them

Taxing illiquid assets is, well, taxing.

Fraser Nelson, editor of the Spectator, has a column in today's Telegraph arguing that George Osborne needs to learn the lesson that "wealth taxes simply don't work". He writes:

The problems involved were fairly basic. Do you tax people’s worldwide wealth? If so, those much-needed businessmen will stay away. Do you tax only British wealth? Then people will move their investments abroad. The Treasury warned Healey that the proposed wealth tax was “political dynamite” – and not in a good way. At a time when Britain was in a desperate economic state, it risked dragging the country down further still. Healey gave up, saying he could not find any wealth tax that would be worth the political hassle.

This is disappointing, because Nelson is largely duelling with straw men here. It is indeed true that a tax on overall wealth could well lead to tax avoidance by the relatively simple tax planning strategy known as "keeping your cash in a Swiss bank account". The thing is, that isn't actually that much of a problem. After all, people avoid income tax as well, yet somehow we struggle on.

The measure for a tax is never "will everyone pay it rather than put their energy into avoiding it?", but "will enough people pay it to make it worth our while?" That's a different calculus, and one which Nelson doesn't address.

But the real disappointment is that, for all Nelson talks about the rising support for a wealth tax, he neglects to mention that most of that support is for taxing a very specific type of wealth: property. It's a shame, because that sort of tax – a "mansion tax", a "land value tax", or whatever form it takes – has its own set of problems which are under-discussed.

The important thing to note about property taxes do is that they completely fix the problems Nelson is concerned about when it comes to wealth taxes in general. You can keep money overseas, but a house in Britain is rather stuck where it is. To the extent that such a tax it increases the cost of living in Britain, it may keep wealthy foreigners away – but only those who haven't already been put off by the extraordinary cost of the sort of houses wealthy foreigners buy.

The thing is, land and property taxes aren't the golden bullet that many on the left like to think, for the key reason that houses aren't particularly liquid assets.

We've all heard the sob-story of the elderly pensioner who could be forced to sell the house he's lived in all his life to pay the land value tax (although we rarely hear it alongside its counterpart, the elderly pensioners who are being forced to moved out of houses they've lived in all their lives because of benefit cuts), but the key concern with such a tax is related to that problem.

If you are taxed, say, 20 per cent of your cash holdings, you pay that tax by handing 20 per cent of your cash to HMRC. If you are taxed on 20 per cent of the value of your land, you can't just hand a wing of your house over to the taxman. You either have to have the cash equivalent available, or sell your house.

Taken individually, that's not the end of the world – few will cry too hard if the odd landowner has to sell a few acres to pay the bill. The problem comes if the tax is set high enough that that sort of sale becomes commonplace.

If too many people end up trying to sell their mansions or land at the same time, then you're stuck with a sadly inevitable collapse in the price that land can go for. That's not just unfair – it means you would be taxing people on assets which are no longer worth what they were when you assessed them – it's also staggeringly inefficient. A well-designed tax should not encourage a fire-sale of assets.

These problems aren't insurmountable, by any means. But they do give pause for thought when considering the truely radical proposals like Peter Tatchell's plan to set the wealth tax rate at 20 per cent. Although back-of-the-envelope calculations suggest such a tax would generate truly staggering revenue, a more modest rate would be a better idea – at least at the start.

This mansion, in Kensington, London, was once the most expensive in the world. What'd the tax be? Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

Photo: Getty
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Rising crime and fewer police show the most damaging impacts of austerity

We need to protect those who protect us.

Today’s revelation that police-recorded crime has risen by 10 per cent across England and Wales shows one of the most damaging impacts of austerity. Behind the cold figures are countless stories of personal misery; 723 homicides, 466,018 crimes with violence resulting in injury, and 205,869 domestic burglaries to take just a few examples.

It is crucial that politicians of all parties seek to address this rising level of violence and offer solutions to halt the increase in violent crime. I challenge any Tory to defend the idea that their constituents are best served by a continued squeeze on police budgets, when the number of officers is already at the lowest level for more than 30 years.

This week saw the launch Chris Bryant's Protect The Protectors Private Member’s Bill, which aims to secure greater protections for emergency service workers. It carries on where my attempts in the last parliament left off, and could not come at a more important time. Cuts to the number of police officers on our streets have not only left our communities less safe, but officers themselves are now more vulnerable as well.

As an MP I work closely with the local neighbourhood policing teams in my constituency of Halifax. There is some outstanding work going on to address the underlying causes of crime, to tackle antisocial behaviour, and to build trust and engagement across communities. I am always amazed that neighbourhood police officers seem to know the name of every kid in their patch. However cuts to West Yorkshire Police, which have totalled more than £160m since 2010, have meant that the number of neighbourhood officers in my district has been cut by half in the last year, as the budget squeeze continues and more resources are drawn into counter-terrorism and other specialisms .

Overall, West Yorkshire Police have seen a loss of around 1,200 officers. West Yorkshire Police Federation chairman Nick Smart is clear about the result: "To say it’s had no effect on frontline policing is just a nonsense.” Yet for years the Conservatives have argued just this, with the Prime Minister recently telling MPs that crime was at a record low, and ministers frequently arguing that the changing nature of crime means that the number of officers is a poor measure of police effectiveness. These figures today completely debunk that myth.

Constituents are also increasingly coming to me with concerns that crimes are not investigated once they are reported. Where the police simply do not have the resources to follow-up and attend or investigate crimes, communities lose faith and the criminals grow in confidence.

A frequently overlooked part of this discussion is that the demands on police have increased hugely, often in some unexpected ways. A clear example of this is that cuts in our mental health services have resulted in police officers having to deal with mental health issues in the custody suite. While on shift with the police last year, I saw how an average night included a series of people detained under the Mental Health Act. Due to a lack of specialist beds, vulnerable patients were held in a police cell, or even in the back of a police car, for their own safety. We should all be concerned that the police are becoming a catch-all for the state’s failures.

While the politically charged campaign to restore police numbers is ongoing, Protect The Protectors is seeking to build cross-party support for measures that would offer greater protections to officers immediately. In February, the Police Federation of England and Wales released the results of its latest welfare survey data which suggest that there were more than two million unarmed physical assaults on officers over a 12-month period, and a further 302,842 assaults using a deadly weapon.

This is partly due to an increase in single crewing, which sees officers sent out on their own into often hostile circumstances. Morale in the police has suffered hugely in recent years and almost every front-line officer will be able to recall a time when they were recently assaulted.

If we want to tackle this undeniable rise in violent crime, then a large part of the solution is protecting those who protect us; strengthening the law to keep them from harm where possible, restoring morale by removing the pay cap, and most importantly, increasing their numbers.

Holly Lynch is the MP for Halifax. The Protect the Protectors bill will get its second reading on the Friday 20th October. 

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