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UK scope: A job offer can be conditional, and a new start date does not guarantee that your next payslip will arrive on time. GOV.UK advises waiting until you have an unconditional offer before handing in notice. Before you leave your current job, confirm what remains outstanding, compare the full terms, coordinate dates and plan for any gap in pay or benefits.
1. Is an offer a job?
It depends on whether the offer is conditional and whether its terms have been accepted. Under GOV.UK guidance, accepting an unconditional offer creates a legally binding employment contract. A conditional offer may be withdrawn if you do not meet its conditions; satisfactory references and a health record are examples.
Acas advises employers to make clear whether an offer is conditional and to identify its conditions. If no conditions were included, the offer is unconditional, and withdrawing it could be against the law. See Acas guidance on job offers.
An offer does not have to be signed on paper to matter. Acas explains that a contract may form before work starts if the terms are clear and definite, the offer is unconditional or its conditions have been met, and you accept it. Acceptance and terms can be verbal or written, but a verbal agreement can be harder to prove. The wording and conditions matter; a signature is not always the sole moment a contract exists.
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2. Checks and approvals can still hold up the job
Before resigning, ask the new employer to put the remaining conditions in writing. For each one, establish what must happen, who is responsible, the expected timeline, and what happens if it is delayed. Ask whether the role is approved and funded, and request written confirmation when all conditions have been cleared. These are practical questions to resolve uncertainty, not a prescribed statutory checklist.
Can I resign before my checks are complete? GOV.UK’s advice is to wait for an unconditional offer before handing in notice. If the employer cannot yet confirm that the conditions are cleared, treat the start date as less certain and avoid making irreversible plans on the assumption that the checks will succeed.
3. Get the terms in writing and compare the whole package
Read the offer and contract, not just the headline salary. Acas says an offer letter should cover the job title, whether the offer is conditional, terms such as pay and hours, benefits, pension, holiday and location, the start date, probation, and how to accept or decline. The GOV.UK guide to written particulars lists the details an employer must provide, including pay amount and frequency, hours and days, holiday, location, probation, benefits and obligatory training. Sick pay and procedures, other paid leave, and notice are also day-one information; pension and some other particulars are due in the wider written statement within two months.
- Pay: Separate guaranteed salary or hourly pay from discretionary bonuses, commission or other variable pay. Check pay frequency and the written conditions for variable compensation.
- Benefits and pension: Confirm what is offered, when you become eligible, and whether any waiting period applies.
- Time and place: Check hours, work location, travel or relocation expectations, holiday and other paid leave.
- Employment terms: Confirm whether the role is permanent or fixed-term, the probation terms, and notice requirements.
- Timing and certainty: Check the proposed start date against outstanding conditions and your current notice obligations.
If anything material is unclear, ask for written clarification before accepting or resigning. If the consequences are significant and you cannot resolve the ambiguity, consider independent employment advice.
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4. Set a feasible start date before giving notice
Check your current contract for the notice period and work out the last working day it requires. GOV.UK’s guidance on starting a new job includes reviewing the new contract before handing in notice, telling your current employer when you are leaving and your last day, and asking when your P45 will be issued.
When should I hand in my notice? Once you have an unconditional offer and have checked the new terms, coordinate the new start date with the notice you owe under your existing contract. Notice requirements depend on your contract and applicable law; do not assume every worker has the same obligation or that you can waive notice unilaterally.
If the dates do not fit, ask your current employer whether it will agree to a shorter notice period, or ask the new employer to move the start date. Get any agreement or revised date in writing.
5. Know what probation changes—and what it does not
Check the length and terms of probation in the offer or contract, including any relevant review process and notice provisions. Probation is one of the particulars that should be covered in the offer and written employment information. Do not assume that the word “probation” by itself explains your rights or the employer’s procedures; ask for the actual terms if they are not clear.
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How do I cover the gap between payslips? There is no universal final-pay date or rule for unused holiday, expenses, commissions, bonuses, insurance or other benefits that applies to every UK worker. These depend on the contract, employer policy, benefit plan and applicable rules. Get dates and treatment from the employers and relevant plan administrators rather than relying on a general assumption.
- Ask your current employer’s payroll team when final pay is expected.
- Ask HR how accrued holiday, outstanding expenses, commission and bonus eligibility will be handled.
- Confirm the exact date each existing benefit or insurance cover ends.
- Ask the new employer when benefits begin and what eligibility conditions or waiting periods apply.
- If there will be a gap, check any relevant public-benefit or insurance rules with official local sources.
Use the confirmed dates to plan your own cash flow. The amount of savings needed depends on your circumstances, so there is no single figure that suits everyone.
7. Prepare for a delayed start or a change of plan
If a check, approval or other condition delays the start, contact the new employer promptly and ask for the revised date and status in writing. Do not treat an expected date as confirmed until the employer confirms it. If you have already agreed a last day with your current employer, contact that employer about your options rather than assuming you can withdraw notice or change the date unilaterally.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.8. Get payroll details ready and check the first payslip
For a UK employee, GOV.UK says the new employer will generally need your National Insurance number, bank details, proof of identity, student loan plan details if applicable, and information about benefits. Provide your P45 if available; otherwise use the starter checklist. Check the first payslip, and raise discrepancies with payroll. The employer must provide a payslip on or before payday, according to GOV.UK’s guidance.
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Acas says employees and workers must receive their written statement of employment particulars on or before their first day. That delivery deadline does not mean you should wait until day one to ask for and review the offer terms.
A practical decision check before resigning
- You know whether the offer is conditional or unconditional, and have written confirmation that every condition has been cleared.
- You have reviewed the complete terms, including pay frequency, variable compensation, benefits, pension, hours, leave, location, probation and notice.
- Your proposed start date fits your current contractual notice, or both employers have agreed any change in writing.
- You know when final pay is expected, how outstanding amounts will be handled, and when old and new benefits begin and end.
- You have a plan for any cash-flow gap and know what payroll information the new employer needs.
If you are comparing two offers, use these same categories side by side, including outstanding checks and how workable each start date is. Do not rank them on salary alone.
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