Going cap in hand to the charities

How to change the tax relief cap to help charities and the government get value for money.

The Chancellor’s budget decision to cap income tax relief has caused a hullabaloo. Wealthy donors and their beneficiaries are in open revolt, saying that charities will be hit hard by the measure. And a lobbying alliance of the wealthy and the charity sector is not something that politicians are likely to defy.

That there will be some cap seems certain. But in the face of this firestorm the government has been curiously reticent in defending its plan. Pointing to the need to curb the minor problem of fraudulent charity giving understandably angered many. There are good arguments for capping donations tax relief, which tend to get less of a hearing. A look at the evidence also points to some ways in which the Chancellor could appease the charity sector while keeping most of his savings.

So what possible justification could there be for cutting tax breaks on giving?

First it’s worth asking the question of how much charities actually benefit from tax relief on donations. This depends how donors respond. If they aim to give a fixed amount of their post-tax income, regardless of government policy, then the charity can expect to get the full value of any tax break that applies.

But what if donors want the charity to get a fixed amount – say a round million pounds? In this case, the availability of a tax top-up might cause them to cut their net donation from what it would otherwise have been. Here the donor benefits but the charity does not. Cutting relief in the first case would hit the charity, but in the second, the total received would be unchanged.

Which of these effects dominates is an empirical question. Several studies suggest that charities get significantly less than £1 for every £1 of tax relief paid out, because people reduce the amount they give in response to the top-up. The evidence isn’t conclusive but a reasonable approximation would be that perhaps two-thirds of tax relief gets to the charity. The residual ends up in the pockets of donors.

So since charities get less than the government spends on tax relief, the state has a dilemma. The cap is expected to save the Treasury up to £100m per year from charity donors. So should it spend that extra £100m on schools or the NHS, services that the electorate as a whole (not just wealthy donors) want to see provided? Or should it reverse its policy and spend that money on tax relief for only £66m to go to privately favoured charities, ranging from famine relief to donkey sanctuaries? The case for doing the latter is perhaps weaker at a time when public services being cut to the bone and ministers lose sleep about the government’s creditworthiness.

Nevertheless, the growing clamour now looks very likely to force some kind of concession from the Treasury. And here the evidence has interesting things to say about how the Chancellor could recast his cap to make sure that government saves some cash and charities maximise giving.

Recent research shows that how tax relief is offered really matters to maximising donations. Where the charity directly claims the tax rebate on behalf of the donor, as with Gift Aid, the scheme looks more like a matching proposition. You give £1 and the government will match it with a further 25p. Under Gift Aid for higher rate taxpayers, the basic rate half of their tax break goes straight to the charity in this way. But they reclaim their rebate on the other 20% - the gap between basic and higher rate income tax - through self assessment.

Field experiments indicate (pdf) that the matching design can wring up to three times as much in donations for every pound spent on the match as the tax rebate version. And this is in spite of the fact that economic theory would suggest that how the tax relief is delivered should have no impact on donor behaviour.

Yet under the government’s current proposal both parts of the donors’ tax relief will be subject to the cap. This makes little sense. The smart move for Mr Osborne would be to un-cap the tax relief that boosts giving while screwing down the cap on the rebate. Both the Big Society and the broke state would be the winners.

Please sir, if you give me 10 per cent more the government will top it up by another 2.5 points while returning between 20 and 30 percent of the increase back to you. Credit: Getty

Ian Mulheirn is the director of the Social Market Foundation.

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Inside Big Ben: why the world’s most famous clock will soon lose its bong

Every now and then, even the most famous of clocks need a bit of care.

London is soon going to lose one of its most familiar sounds when the world-famous Big Ben falls silent for repairs. The “bonging” chimes that have marked the passing of time for Londoners since 1859 will fall silent for months beginning in 2017 as part of a three-year £29m conservation project.

Of course, “Big Ben” is the nickname of the Great Bell and the bell itself is not in bad shape – even though it does have a huge crack in it.

The bell weighs nearly 14 tonnes and it cracked in 1859 when it was first bonged with a hammer that was way too heavy.

The crack was never repaired. Instead the bell was rotated one eighth of a turn and a lighter (200kg) hammer was installed. The cracked bell has a characteristic sound which we have all grown to love.

Big Ben strikes. UK Parliament.

Instead, it is the Elizabeth Tower (1859) and the clock mechanism (1854), designed by Denison and Airy, that need attention.

Any building or machine needs regular maintenance – we paint our doors and windows when they need it and we repair or replace our cars quite routinely. It is convenient to choose a day when we’re out of the house to paint the doors, or when we don’t need the car to repair the brakes. But a clock just doesn’t stop – especially not a clock as iconic as the Great Clock at the Palace of Westminster.

Repairs to the tower are long overdue. There is corrosion damage to the cast iron roof and to the belfry structure which keeps the bells in place. There is water damage to the masonry and condensation problems will be addressed, too. There are plumbing and electrical works to be done for a lift to be installed in one of the ventilation shafts, toilet facilities and the fitting of low-energy lighting.

Marvel of engineering

The clock mechanism itself is remarkable. In its 162-year history it has only had one major breakdown. In 1976 the speed regulator for the chimes broke and the mechanism sped up to destruction. The resulting damage took months to repair.

The weights that drive the clock are, like the bells and hammers, unimaginably huge. The “drive train” that keeps the pendulum swinging and that turns the hands is driven by a weight of about 100kg. Two other weights that ring the bells are each over a tonne. If any of these weights falls out of control (as in the 1976 incident), they could do a lot of damage.

The pendulum suspension spring is especially critical because it holds up the huge pendulum bob which weighs 321kg. The swinging pendulum releases the “escapement” every two seconds which then turns the hands on the clock’s four faces. If you look very closely, you will see that the minute hand doesn’t move smoothly but it sits still most of the time, only moving on each tick by 1.5cm.

The pendulum swings back and forth 21,600 times a day. That’s nearly 8m times a year, bending the pendulum spring. Like any metal, it has the potential to suffer from fatigue. The pendulum needs to be lifted out of the clock so that the spring can be closely inspected.

The clock derives its remarkable accuracy in part from the temperature compensation which is built into the construction of the pendulum. This was yet another of John Harrison’s genius ideas (you probably know him from longitude fame). He came up with the solution of using metals of differing temperature expansion coefficient so that the pendulum doesn’t change in length as the temperature changes with the seasons.

In the Westminster clock, the pendulum shaft is made of concentric tubes of steel and zinc. A similar construction is described for the clock in Trinity College Cambridge and near perfect temperature compensation can be achieved. But zinc is a ductile metal and the tube deforms with time under the heavy load of the 321kg pendulum bob. This “creeping” will cause the temperature compensation to jam up and become less effective.

So stopping the clock will also be a good opportunity to dismantle the pendulum completely and to check that the zinc tube is sliding freely. This in itself is a few days' work.

What makes it tick

But the truly clever bit of this clock is the escapement. All clocks have one - it’s what makes the clock tick, quite literally. Denison developed his new gravity escapement especially for the Westminster clock. It decouples the driving force of the falling weight from the periodic force that maintains the motion of the pendulum. To this day, the best tower clocks in England use the gravity escapement leading to remarkable accuracy – better even than that of your quartz crystal wrist watch.

In Denison’s gravity escapement, the “tick” is the impact of the “legs” of the escapement colliding with hardened steel seats. Each collision causes microscopic damage which, accumulated over millions of collisions per year, causes wear and tear affecting the accuracy of the clock. It is impossible to inspect the escapement without stopping the clock. Part of the maintenance proposed during this stoppage is a thorough overhaul of the escapement and the other workings of the clock.

The Westminster clock is a remarkable icon for London and for England. For more than 150 years it has reminded us of each hour, tirelessly. That’s what I love about clocks – they seem to carry on without a fuss. But every now and then even the most famous of clocks need a bit of care. After this period of pampering, “Big Ben” ought to be set for another 100 or so years of trouble-free running.

The Conversation

Hugh Hunt is a Reader in Engineering Dynamics and Vibration at the University of Cambridge.

This article was originally published on The Conversation. Read the original article.