Have your Acas early conciliation certificate numbers ready. GOV.UK says you will usually need one for each respondent. Questions marked * must be completed. Numbers below are from the 10.26 edition.
Section 1: your details. Name, date of birth, sex, address, phone, email and contact preference. Question 1.11 asks whether you can take part in video and phone hearings. Question 1.12 is the judge-or-panel preference above.
Section 2: the respondent's details. The name and address of your employer or whoever you are claiming against, and whether you have an Acas early conciliation certificate number. If not, the form offers four reasons to choose from. Question 2.4 is for a different work address. Question 2.5 adds other respondents, up to three in section 2.
Section 3: multiple cases. Whether your claim is one of several against the same employer from the same or similar circumstances. If so, you add the names of other claimants you know, so the tribunal can link the claims.
Section 4: cases where the respondent was not your employer. One question: did you work for the respondent? Yes goes to section 5; no goes to section 8.
Section 5: employment details. Start and end dates, any notice period, and the job you do or did.
Section 6: earnings and benefits. Average weekly hours, pay before tax, take-home pay, notice worked or paid for, pension and other benefits.
Section 7: what has happened since, if your employment has ended. Whether you have another job and what you earn.
Section 8: type and details of claim. You tick one or more types of claim, such as unfair dismissal, discrimination, whistleblowing, a redundancy payment or money owed. Question 8.2 asks for the background and details, including the dates of the events you complain about; the form says to use the blank sheet at the end if you need room. Question 8.3 is the most recent event date.
Section 9: what you want if your claim is successful. Boxes for reinstatement, re-engagement, compensation only, or a recommendation in a discrimination claim. Question 9.2 asks what compensation or remedy you seek. The form says any figure is "helpful information", will not restrict what you can claim, and can be revised later.
Section 10: information to regulators in whistleblowing cases. A box to tick if you want the form, or information from it, forwarded to a relevant regulator by tribunal staff.
Section 11: your representative. If someone has agreed to represent you, you give their name, organisation, address, DX number if known, phone, mobile, their reference for correspondence, email, and how you prefer to communicate with them. The form says: "We will in future only contact your representative and not you."
Section 12: disability. Whether you have a disability or health condition that means you need support during your case. If yes, the form asks what assistance you will need, which it calls reasonable adjustments. GOV.UK says you can tell the tribunal about adjustments when you make your claim or at any time after.
Section 13: details of additional respondents. Respondents 4 and 5 have their own boxes, each with an Acas question.
Section 14: additional information. Anything more about your claim. For a group claim, the Acas certificate numbers of the others in your group, or why they have none.
Diversity monitoring questionnaire. The form ends with a questionnaire so HMCTS can assess whether its policies are effective. The form says answers are treated in strict confidence.