
The European Commission’s Schengen monitoring portal was updated on 28 September 2026 to confirm that Poland has formally notified the temporary re-introduction of internal border controls from 2 October 2026 through 30 March 2027 on its land frontiers with Germany and Lithuania. This will supersede the current authorisation that expires on 1 October. The notification cites “continued threats to public order and internal security posed by persistent migratory pressure” as the legal basis. Poland has used the same justification since April 2026, arguing that organised smuggling networks divert flows from the Belarus route toward gaps in surveillance on the western and northern borders. Under the Schengen Borders Code, internal checks must be proportionate and last-resort; successive six-month renewals now push Poland close to the two-year cumulative ceiling, meaning Brussels will scrutinise necessity even more closely. Failure to convince the Commission could trigger infringement proceedings or force Warsaw to lift controls earlier. For corporates the extension means mobile workers, especially third-country nationals travelling on Polish intra-corporate-transfer permits or ICT cards issued elsewhere, must continue to carry passports and residence documents when crossing into Germany or Lithuania by road or rail. Employers should also brief drivers on the possibility of document scans and cargo inspections. Travel-management firms expect minor delays during peak freight hours but no wholesale congestion because Poland relies on intelligence-led spot-checks rather than full-time booths. Nevertheless, the prolonged controls add compliance costs and reinforce the trend toward “de-Schengenisation” of intra-EU mobility in Central Europe.