The full cost of Labour's decision to abolish the two-child benefit cap is now becoming clear, and it is eye-watering. The policy will cost taxpayers £13.6 billion over the next four years, according to figures aired this week. Some jobless families with multiple children are set to receive windfalls worth up to £25,000. Every penny of that is being extracted from working Britons who already pay the highest tax burden in seventy years.
The Money Has to Come from Somewhere
This is a point Labour ministers seem incapable of explaining honestly. Money spent on welfare is money that has been taxed out of someone else's pay packet. The £13.6 billion bill for scrapping the two-child cap is the equivalent of 2p on the basic rate of income tax, or every penny raised by the inheritance tax raid on family farms multiplied by twenty-seven. It is not free. It is paid for by frozen tax thresholds, by stealth fiscal drag, by every working family losing more of its income every April.
The Chancellor, Rachel Reeves, justifies this on the grounds that it lifts 450,000 children out of relative poverty. That sounds compassionate. But it is worth interrogating the claim. "Relative poverty" is a statistical definition based on median income. It does not measure how much food a family can buy. It measures how their income compares to others. You can lift a child out of "relative poverty" by transferring money from a working family to a non-working family, without any change in the actual material circumstances of either. That is not the same as eliminating hardship.
The Two-Child Cap Was Working
The two-child limit was introduced in 2017 for a clear policy reason. It was designed to ensure that families on benefits faced similar financial considerations to families in work when deciding how many children to have. The principle was reasonable: the welfare system should not actively incentivise larger families on benefits than working families could afford to support. That is not cruelty. It is basic fairness.
The cap had broad public support. Polling has consistently shown that voters, including Labour voters, backed it. Working people who decided they could only afford two children resent paying tax to fund benefits for families who made different choices. That is not a controversial position. It is the lived experience of every household that has had to balance its budget.
The Perverse Incentives Are Real
Critics of the cap argued it punished children for the decisions of their parents. That is a serious argument and deserves a serious answer. But the answer cannot be unconditional and open-ended. If welfare income rises automatically with every additional child, regardless of work status, you have created an incentive structure that no functioning society can sustain. Reform UK's position has always been more nuanced than the caricature suggests.
We have said the cap should remain in place except for families where both parents are British-born and in full-time work. That is a defensible compromise. It supports working families. It maintains incentives. It targets help to those who are contributing. Labour's blanket abolition creates a system where the working couple paying their taxes subsidises the family next door who has chosen a different path. Over time, that destroys social consent for the welfare system.
The Long-Term Bill Is Far Worse
The £13.6 billion figure is only the first four years. The Institute for Fiscal Studies has shown that the long-run cost is significantly higher. By 2030/31, an estimated 570,000 households will gain an average of £5,400 a year. That is a permanent annual transfer from working Britain to non-working Britain of well over £3 billion a year, indexed and growing. Labour has signed up the next government, and the one after that, to a commitment they have not properly costed.
This is the pattern. Labour finds a popular cause, announces an expensive policy, and quietly assumes that future governments will find the money. The bills come due long after the headlines have moved on. Frozen tax thresholds. Stealth taxes on dividends and savings. The pension salary sacrifice cap. The inheritance tax raid on family farms. Every one of them is paying for the welfare expansion that Labour ministers like to talk about and never like to fund.
What Reform UK Would Do
Reform UK would reinstate a targeted two-child cap that protects the working family, supports the British-born household contributing to the economy, and ends the open-ended subsidy of non-working households of unlimited size. We would also tackle the underlying problem—a tax system that punishes work and a welfare system that pays for not working. Raise the personal allowance to £20,000. Cut the basic rate. Tighten benefit eligibility. Put fairness back at the heart of the system.
British workers should not be expected to pay 30% of their earnings to fund a welfare system that no longer rewards the choices they themselves have made. Reform UK believes in a generous safety net, but a safety net is supposed to catch people who fall, not to become a more comfortable choice than work itself.