The regime of punitive income taxes of the 1970s and 1980s across the English speaking world was replaced by lower income tax rates thanks to economic policies of Thatcher and Reagan. At the same time,many very generous tax shelters that allowed room for the market economy to breathe under the burden of high income tax rates were curbed or withdrawn. I remember thinking that eventually tax rates would go up again but the shelters would not be restored.
Governments seem to have forgotten the message of those shelters,that there is a limit to marginal tax rates. Raising them beyond the low 40 per cent area invites great economic inefficiencies and loss of business opportunities. The Irish government's present tax raising frenzy could bring marginal tax rates back to the bad old days of the 1980s when the rates were 65%. This is likely unless the government can somehow find the will to face down the public sector unions and cut their bloated pay by about 20%.
The futility of high marginal tax rates is persuasively argued in today's London Times Bullets meant for bankers could kill the welfare state - Times Online by the newspaper's economist Anatole Kaletsky. He quotes The Institute of Fiscal Studies' opinion that the tax increase to 50% in the budget will lead to "behavioural changes such as changes in work patterns,relocations abroad and and conversion of wages into corporate profits and capital gains". Besides,the £2 billion the Treasury hopes to collect from this increase to 50% is very small compared to public sector borrowing projection of £150 to 200 billion a year.
He expects the tax increase to dampen economic recovery prospects in the key industries on which the UK has a comparative advantage:finance,pharmaceuticals,advanced electronics,engineering design,architecture,entertainment,management,consu ltancy,law,advertising. That's because these industries rely on highly paid,internationally mobile workers who will be deterred by taxes from coming to the UK.
A very similar observation could be made about the increased Irish marginal tax rates in the budget.



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