LONDON — In a tense exchange at Prime Minister’s Questions, Reform UK MP Rupert Lowe has demanded that the government publish full Treasury analysis breaking down the economic contribution of migrants by nationality — a request that exposed deepening fractures over immigration transparency and left Chancellor Rachel Reeves offering carefully worded evasion.
Lowe, the outspoken Reform member for Great Yarmouth, rose during Wednesday’s session brandishing documents he said came from a Freedom of Information request. The unpublished data, he claimed, showed significant variation in net fiscal contributions across different nationality groups — information he argued the public had a right to see.
“For years, we have been told that immigration is an unalloyed economic benefit,” Lowe said, addressing the chamber. “Yet the Treasury holds detailed analysis breaking down tax contributions and public expenditure by nationality. Why will this government not release it? What are they afraid the British people might learn?”
The question landed with unusual force. Unlike broader immigration debates over numbers and asylum policy, Lowe’s demand focused squarely on fiscal transparency — who pays into the system and who draws more out — a line of inquiry that cuts across traditional left-right divides.
Chancellor Rachel Reeves, standing in for the Prime Minister at this week’s session, responded with diplomatic agility but little substance. “Everyone who comes to this country must pay their fair share of tax,” she said. “This government is committed to a migration system that works for Britain, based on skills and need, not nationality.”
Pressed repeatedly by Lowe on whether she would commit to publishing the Treasury’s nationality-disaggregated fiscal analysis, Reeves pivoted to broader economic themes. “We do not believe in dividing people by passport,” she said. “Our focus is on ensuring that all workers — whether born in Birmingham or Bangalore — are treated fairly and contribute fully.”
The evasive response drew immediate criticism from transparency advocates and immigration reform groups alike. The Campaign for Freedom of Information issued a statement noting that the Treasury had already conducted the analysis; the only question was whether citizens could see it.
“Governments routinely publish economic data broken down by region, age, income quintile, and countless other variables,” said its director, Jen Persson. “If nationality-based fiscal data exists and is reliable, what legitimate public interest is served by withholding it?”
Behind the parliamentary theater lies a deeper statistical and political challenge. Estimating net fiscal contribution by nationality is notoriously complex. It requires modeling tax revenues — income tax, VAT, national insurance, excise duties — against public expenditures on health, education, welfare, pensions, and infrastructure. Immigrants’ age profiles, employment rates, family structures, and length of residence all matter enormously.
Several academic studies have attempted the exercise. A 2024 Oxford Economics analysis found that E.U. nationals who arrived after 2016 were net positive contributors, while non-E.U. migrants showed variation dependent on visa category and skill level. But no official Treasury breakdown by nationality has ever been released.
Labour’s reluctance is easy to read. Having campaigned on a platform of “managed migration” rather than “hostile environment,” the party is keen to avoid being drawn into debates that could fuel Reform UK’s core narrative. Yet by refusing to release data the Treasury already holds, Reeves invited the very suspicion she sought to avoid.
“Sunlight is the best disinfectant,” said Conservative shadow home secretary Chris Philp, seizing on the exchange. “If the data shows migration is beneficial, publish it and prove Reform wrong. If it shows problems, publish it and fix them. Secrecy serves no one except those with something to hide.”
Reform UK has made transparency on immigration economics a central plank of its platform. The party argues that without nationality-disaggregated data, the public is being asked to accept immigration policy on faith rather than evidence — a proposition Lowe called “intellectually insulting.”
“Imagine if the Treasury refused to publish GDP figures or unemployment data,” Lowe said after the session. “There would be outrage. But when it comes to migration, suddenly transparency is dangerous. That is not government. That is propaganda.”
The government’s position may be further complicated by the Freedom of Information request Lowe cited. If the Information Commissioner’s Office rules that the Treasury must release the analysis — or a suitably anonymized version — Labour could find itself forced into transparency by legal mechanism rather than political choice.
For now, Reeves has bought time but not resolution. The exchange at PMQs will be replayed in campaign ads and social media clips. And each day the data remains unpublished, Reform UK will ask the same question: What are they hiding?
“The British people are adults,” Lowe said. “They can handle the truth — whatever it is. The question is whether this government trusts them to.”
