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Keeping up with financial sector regulation
ECB11 November 2026Working paper

The real and financial effects of local corporate tax increases: evidence from linked firm–bank data

The Neural Herald summary, AI-generated

Working paper using Portuguese data: increases in the municipal surcharge on corporate income tax tighten firms' financing and reduce sales, employment and productivity.

Key points

Who is affected

Research on taxation and corporate finance

Plain-language version

An ECB study using data from Portugal looks at what happens when town councils raise their surcharge on corporate tax, the tax companies pay on profits. Firms end up with less cash, find it harder to borrow and then sell less, hire less and close more often. Small businesses are hit hardest, which also shows up in local jobs.
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