Local government debt is estimated at up to $11 trillion, including what’s owed by local government financing entities that are “off balance sheet,” or not included in official estimates. More than 300 reforms the party has outlined include promises to better monitor and manage local debt, one of the biggest risks in China’s financial system.

That will be easier said than done, and experts question how thoroughly the party will follow through on its pledges to improve the tax regime and better balance control of government revenues.

“They are not grappling with existing local debt problems, nor the constraints on fiscal capacity,” said Logan Wright of the Rhodium Group, an independent research firm. “Changing central and local revenue sharing and expenditure responsibilities is notable but they have promised this before.”

The scramble to collect long overdue taxes shows the urgency of the problems.

Chinese food and beverage conglomerate VV Food & Beverage reported in June it was hit with an 85 million yuan ($12 million) bill for taxes dating back as far as 30 years ago. Zangge Mining, based in western China, said it got two bills totaling 668 million RMB ($92 million) for taxes dating to 20 years earlier.

Local governments have long been squeezed for cash since the central government controls most tax revenue, allotting a limited amount to local governments that pay about 80% of expenditures such as salaries, social services and investments in infrastructure like roads and schools.

Pressures have been building as the economy slowed and costs piled up from “zero-COVID” policies during the pandemic.