In a letter seen by ITV News, a senior Cabinet minister has warned hospital trusts about using schemes to avoid paying tax.
After months of terrible headlines about companies and rich individuals not paying their fair share, it was the taxman's turn to talk.
Chancellor George Osborne has said that he expects to unveil tax breaks for married couples as soon as his Autumn Statement.
The Confederation of British Industry's (CBI) has said government plans to hand a £2,000 national insurance cut to businesses and begin consultations on cutting slow payment of invoices could help businesses experiencing cash flow difficulties.
Katja Hall, chief policy director, commented:
– Katja Hall, CBI chief policy director
Late payment is a serious issue for all businesses but particularly for smaller firms, as cash flow is their life blood. Businesses already have a number of routes for recourse if they are paid late, but the reality is that few choose to act on late payment for fear of fall-out with their customers.
Prime Minister David Cameron says the National Insurance Contributions Bill, a plan to hand a £2,000 national insurance cut to businesses and begin consultations on cutting slow payment of invoices, would save 1.25 million businesses £2,000 per year.
He added that it would mean 450,000 businesses will have their national insurance bills eliminated entirely.
– Prime Minister David Cameron
An ambitious and thriving small business sector is vital for steering the economic recovery in the right direction and helping us to succeed in the global race.
We are determined to do everything we can to ensure that our small firms can be successful and prosperous and people can fulfil their aspirations.
Last week, we helped people get on the housing ladder and own shares. This week, we're helping small businesses start and expand. This Government is 100% backing people who work hard and want to get on in life and we're going to finish the job we started.
The consultation on late payment will review whether the Prompt Payment Code can be strengthened, consider whether new legislation or penalties are needed, and look at what can be done to increase transparency.
Ministers will today launch in the Commons plans to hand a £2,000 national insurance cut to businesses and begin consultations on cutting slow payment of invoices.
David Cameron will mark the introduction of the National Insurance Contributions Bill with a tour of small businesses in the east of England, insisting the Government is keen to do everything it can help to help firms succeed.
The tax cut is due to be in place by April next year and the Government said 90% of the benefit would be felt by firms with fewer than 50 employees.
A consultation on ways to end late payment is also being launched, Mr Cameron said, because the problem can have a "devastating effect" on small and medium sized firms.
A senior Conservative minister warns today that both Labour and the Liberal Democrats plan to "clobber the rich" after the next election.
Justice Secretary Chris Grayling also hit out at Labour as he warned against the "politics of envy" and efforts to "clobber the rich".
In a Sunday Telegraph article timed to coincide with the start of the Labour Party conference, Mr Grayling said: "The politics of envy is back. What do Labour want to do? They want to penalise the wealth creators. Higher taxes for the rich. To pay for...a bigger and bigger welfare state."
Loopholes allowing multinational companies to slash their tax bills to little or nothing are to be closed under an international crackdown unveiled today.
Practices including profits being stashed in offshore subsidiaries and tax-deductible expenses being claimed in various countries are to be targeted by new rules published by the Organisation for Economic Co-operation and Development (OECD).
It said outdated structures were "leaving gaps that can be exploited by multinational corporations to artificially reduce their taxes".
Prime Minister David Cameron said he was "delighted" the OECD had produced the report.
He said: "Taxpayers, governments and businesses all suffer when some companies manipulate the tax system to avoid paying their fair share of taxes."
At the time of the 2010 general election, the Conservatives promised a transferable tax allowance worth around £150 to married couples.
The Liberal Democrat leader Nick Clegg ridiculed the proposals as "patronising drivel that belongs in the Edwardian age".
His party later secured a provision in the coalition agreement allowing them to abstain from voting on the issue.
Labour’s shadow Treasury minister has accused the Chancellor of "pandering to his backbenchers" and showing favouritism in his pledge to bring in a tax break for married couples.
In a statement, Cathy Jamieson said: "Millions of people who are separated, widowed or divorced, as well as married couples where both partners work and use all their personal allowance, won't get any help from this out of touch policy."
She added that the "minority" of people who are eligible for the tax breaks will see the benefits "far outweighed by what George Osborne has already taken away in tax rises and spending cuts".