In the UK, you will usually need at least two years’ continuous service to bring an ordinary unfair dismissal claim, although some automatically unfair reasons have no minimum service requirement. You normally must notify Acas for early conciliation before applying to an employment tribunal, and the usual deadline is three months less one day from the dismissal, subject to any extension for conciliation. Keep your dismissal letter, contract, payslips and relevant messages, and record key dates. A solicitor regulated by the SRA or an employment adviser can assess your circumstances and explain the procedure.