My offer is conditional: what should be confirmed before I resign?

Conditional and unconditional offers differ

Acas distinguishes a conditional offer, which depends on specified requirements such as suitable references, a health check, or a right-to-work verification, from an unconditional offer, which has no such conditions. The distinction matters because acceptance and the contractual wording affect what happens if the offer is later withdrawn. A recruiter saying “you have the job” does not tell you whether references, right-to-work checks, or another condition still remains. This Great Britain guidance does not decide any individual dispute; it explains the general framework.

Make a condition-by-condition record

Keep the offer letter, your written acceptance, and every attachment. List each condition separately, the evidence requested, the person who will assess it, and any stated completion date. Ask the employer which checks have already been cleared and whether anything remains outstanding. Do not send sensitive documents to a new contact merely because they claim to be completing a check; first confirm that the contact is an authorised channel of the employer. If a condition is vague, such as “suitable references,” ask what standard will be applied and who decides.

Clarify the practical start decision

Ask for the final written arrangement to state the employing entity, pay, role, place of work, start date, and notice terms. Compare these with your current notice obligations to your present employer. Separate a suggested onboarding appointment from confirmation that all conditions are satisfied. If the timing is uncertain, request an explicit update before making commitments such as ending your present job or arranging a move. Treat a provisional date as provisional until the employer confirms that every condition has been met.

If the offer changes or disappears

Preserve the original offer terms, your acceptance, any message changing the offer, and records of expenses or decisions you made in reliance on the offer. Ask the employer for the stated reason for withdrawal or change. Seek current advice about the contractual and equality questions that arise. Do not assume that every withdrawn offer is unlawful, or that every loss will be recoverable. Keep your application search active while the start position is unresolved, so you are not left without options.

Example: an onboarding date while references remain pending

Hypothetical illustration: an offer is subject to references, and a recruiter invites the applicant to an onboarding session. The applicant still works elsewhere. Ask: “Have the stated reference conditions been satisfied or expressly removed, who can confirm that, and is the employment start date final?” Compare the written answer with the present job’s notice. A calendar invitation is a practical arrangement, not automatically proof that the written condition disappeared.

If the issue remains unresolved

If the employer does not give clear answers, or if you face a withdrawal after relying on the offer, gather your records and seek advice from a solicitor or an experienced employment adviser. Bring the offer letter, your acceptance, any correspondence about conditions, and evidence of expenses or decisions made in reliance. Ask specifically whether the withdrawal was lawful and whether you may have a claim for breach of contract or discrimination. Do not delay, as time limits may apply to any claim.

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