The Trades Union Congress (TUC) has formally requested that Chancellor John Healey initiate a "root and branch" review of the Office for Budget Responsibility (OBR) ahead of the upcoming budget on October 28. TUC General Secretary Paul Nowak contends that the OBR’s current methodology is flawed, specifically criticizing the assumption that public investment "crowds out" private capital. According to the TUC, this analytical framework leads to overly pessimistic forecasts that discourage necessary government spending.

The union’s push aligns with broader political rhetoric from figures like Andy Burnham, who has emphasized the need for "good growth in every postcode." The TUC suggests that by re-examining how the OBR assesses the long-term benefits of public infrastructure and services, the government could unlock greater economic potential. While the TUC maintains that the current approach holds back investment, the OBR has historically defended its models as necessary to maintain fiscal credibility and prevent excessive government borrowing. The debate centers on whether the OBR’s conservative forecasting style acts as a vital guardrail against debt or an unnecessary barrier to economic expansion.