If you believe your employer dismissed you unfairly, you will usually need to start ACAS Early Conciliation before bringing a claim to an employment tribunal. The usual deadline is three months less one day from the effective date of termination, although the ACAS process can pause the time limit. Eligibility and possible remedies depend on factors such as your length of service, the reason for dismissal and how your employer handled the process. Keep relevant documents and consider advice from an employment solicitor regulated by the SRA as soon as possible.