On an uncomfortably hot afternoon, a mother of two described what a typical week looks like. “I do the maths before I even go into the shop,” she said. “Not what I want. What I can afford.” Her rent has risen twice in three years. Her wages have not kept pace. She is, by any conventional measure, not workless, not feckless, not the stereotype often reached for in debates about poverty.
She is simply, as she puts it, “always one bill away from not eating.”
Stories like hers are becoming harder to dismiss as anecdote. Guernsey is quietly recording some of the sharpest falls in real household income seen anywhere in the British Isles in recent years. According to the States’ own data, mean gross household income fell by 10.3% in real terms between 2017 and 2022, and by a further margin since. Real household income is down 12% since 2018-19 and 13% since 2012-13, even as nominal pay packets have grown. Guernsey residents are, on paper, earning more pounds than ever.
Yet those pounds buy noticeably less.
The consequences are showing up in the recorded statistics. Nineteen per cent of Guernsey’s children are now estimated to live in relative poverty, according to the Guernsey Community Foundation’s Quality of Life Report 2025. A figure that sits alongside 22% of pensioners and 17% of working-age adults.
Within the government’s own income data, households made up of a single adult with dependent children fare worst of all: 55% of that group fall below the poverty threshold, by far the highest rate of any household type on the island.
Then there is the exodus.
It is hard to quantify precisely, but easy to hear about. A steady trickle of departures. Young families, in particular, citing housing costs and the price of daily life as reasons for leaving. The Quality of Life Report found that young people increasingly “do not see a future” on the island, driven away, in the report’s words, by rising living costs.
For a jurisdiction that depends on a working-age population to fund its ageing one – Guernsey currently has around 22 working-age adults for every person over 85, a ratio projected to collapse to nine to one by 2053 – that outward drift is not merely a social concern. It is a structural one.
It is against this backdrop that the Policy and Resources Committee (P&R) has proposed introducing a Goods and Services Tax. The economic logic is straightforward enough. Guernsey has no broad consumption tax, unlike almost every comparable jurisdiction, and P&R argues the island cannot continue funding public services from income tax and social security contributions alone as its population ages. The committee has tried to soften the blow: the package includes mitigations which members say will help the worst off.
Yet the central objection has not gone away.
GST, like VAT, is a flat-rate tax on spending, and spending, not saving, is what low-income households do with almost all of their income. A wealthy household can shelter a large share of its income from a consumption tax simply by saving or investing it; a family already living hand to mouth cannot. Layer that on to food, which P&R has already done, and the tax falls hardest on precisely the households already identified, in the government’s own reports, as struggling most: families with children, and single parents above all.
Whether the compensating measures are generous enough to offset this in practice is, at this stage, unproven. Relief payments and benefit upratings are policy commitments, not guarantees; their real value depends on decisions deputies have not yet locked in, and on whether they keep pace with actual GST paid at the till.
It is telling that GST has now been rejected by the States three times since it was first proposed, and that a majority of deputies elected at the most recent general election arrived in office either opposed to it outright or unconvinced that the mitigations go far enough.
A scepticism shared, evidently, by a significant slice of the electorate that put them there.
That scepticism has hardened in recent times into something more specific: a dispute over whether P&R’s figures can be trusted. The committee published an online GST calculator, and urged users to treat its results as evidence.
Yet an independent audit, which ran the calculator’s own published code against the policy documents line by line, found a series of discrepancies; a missing contribution band for higher-earning self-employed workers, a mortgage-interest relief it said was applied twice; and a marital-status allowance the tool grants without ever asking whether a couple is married, among others.
P&R has firmly rejected the characterisation that the tool is “broken.” The committee’s vice-president argued it had “never claimed the tax calculator guarantees absolute accuracy,” describing it instead as offering “a reasonable estimate of the immediate impact… for the majority of typical households.”
Separately, P&R’s headline forecast of £41 million in annual GST revenue from households relies on outdated 2018-19 spending data. Applying the same method to the States’ own newer 2023-24 survey produces a materially lower estimate, in the region of £26 million to £32 million.
All of which has, by design or by accident, shifted the argument from whether a consumption tax is in principle a reasonable way to fund an ageing island; to whether the public and deputies have been given evidence solid enough to judge that question at all.
Requests for the modelling and base data behind the headline distributional claims – the assertion, cited repeatedly by the committee, that most low- and middle-income households would end up better off – have so far not been met with full publication.
For a change of this scale, being asked to take the sums on trust is, for many islanders, its own reason for unease.
None of this means the island’s finances can simply be left unaddressed; the deficit is real, and the alternatives carry their own costs. But as the debate trudges on, the mother in the car park is unlikely to be reassured by unproven projections and relief-payment formulas. She will find out simply by looking at her ever increasing overdraft.
Deputy Rob Curgenven
