(Bloomberg) -- The chair of an influential panel of UK lawmakers has accused the International Monetary Fund of dodging scrutiny over its latest forecasts and attacked its “infuriating” behavior.

Harriett Baldwin, chair of the House of Commons Treasury Committee, had asked IMF officials to discuss the economic assumptions used in their recent outlook. Last month, the IMF urged Chancellor Jeremy Hunt not to cut taxes in his upcoming budget, alongside a lackluster growth forecast.

Baldwin, an MP for the ruling Conservative Party, invited both the IMF and the Organisation for Economic Cooperation and Development to appear before the committee as part of a pre-budget inquiry. Neither was able to attend but the OECD, whose chief economist is a former UK Treasury official, had shown “positive intent and engagement,” she said. There were no warm words for the IMF, though.

“The IMF’s outright refusal to let us scrutinize their forecasts of the UK economy in public is infuriating,” Baldwin said in a statement. “Yet they continue to utter public pronouncements about the UK from their perch in Washington. As the IMF is a public body partly funded by the UK as a shareholder, I find this incredible.”

Baldwin has been calling for the IMF to appear before Parliament since it intervened after the mini-budget catastrophe in 2022, when former chancellor Kwasi Kwarteng’s plan for unfunded tax cuts crashed the government bond markets.

The IMF released a critical statement before the markets blew up that Beth Russell, a senior Treasury official, later said “was a bit unusual to have outside a formal engagement.” She added that there had been no prior contact. The UK is one of the IMF’s biggest shareholders.

The fund has also been accused of being perennially gloomy about the UK. Last October, it forecast the UK to have the highest inflation and slowest growth in 2024 of any Group of Seven economy. It has since revised that up to the fourth fastest. Its 2022 forecasts were also revised up but still undershot the outcome.

When asked whether the IMF was excessively pessimistic on the UK last October, it denied that was the case – pointing to even bleaker projections from the Bank of England.

Last month, it forecast the UK to grow 0.6% this year and 1.6% in 2025. Chief Economist Pierre-Olivier Gourinchas said: “We would advise against further discretionary tax cuts.” He suggested that tax rises were needed to increase spending on public services.

Hunt is expected to cut taxes at the budget as the government looks to win over voters ahead of the election that is expected later this year.

The IMF has a satellite UK office at the BOE in London, where two or three of is staff are based. The fund did not immediately provide a response.

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