The Institute for Fiscal Studies published a cross-party summary of all four major Scottish parties' election manifestos with a single headline: "Lack of credibility unites manifesto offering of three biggest Scottish parties"1. The verdict builds on the IFS's earlier individual party assessments, hardening the criticism from party-specific to collective.
Scottish Labour proposes £3.2 billion in resource spending and £1.2 billion in capital spending that significantly exceeds unallocated Scottish Government funding, with no comprehensive costings provided. The SNP projects £1.6 billion for the Scottish NHS from UK-wide spending increases, but the IFS says this is overstated because some UK increases are funded by income tax rises that do not apply in Scotland. The Scottish Conservatives underestimate their NHS "double lock" pledge cost by at least £600 million, more than a quarter of the policy's true price. Reform UK's income tax cut would cost £2-3.7 billion per year with no self-funding evidence. The Fraser of Allander Institute separately confirmed Reform's Scottish manifesto is unaffordable2.
No previous Holyrood election in 27 years of devolution that every major party contesting a Holyrood election has been simultaneously dismissed by the country's leading fiscal watchdog. When all options are equally discredited on spending, the election pivots to non-fiscal ground. The SNP's independence commitment is the strongest such offer on the table; no other party has an equivalent differentiator that the IFS cannot adjudicate.
