The start date is the one term in an offer that almost every employer will flex, and the one that candidates most often accept without asking. A week's gap between jobs, a full notice period served properly, a holiday booked months ago: all of these are normal requests when they are made early and plainly, and all of them become awkward when they are raised after the contract is signed. This page covers what employers can usually move, how to account for your notice period and a break, the exact wording for the request, what to do when they push back, and how to rehearse the call so you ask once and clearly.
What employers can usually flex
| Request | Usually possible? | Why |
|---|---|---|
| A later start to serve your full notice | Yes | Employers expect it and respect candidates who leave properly |
| One to two weeks between jobs | Yes | Common and rarely questioned |
| Three to four weeks between jobs | Often | Say why briefly: a move, a break after a long project, family |
| A pre-booked holiday in the first months | Yes, if raised before signing | Usually unpaid or taken from the allowance; agree it in writing |
| An earlier start than offered | Sometimes | Depends on their onboarding and budget cycle |
| Starting after a fixed date you cannot move | Depends | A training cohort or a project may make the date firm; ask |
The timing of the ask matters more than its size. A start date is negotiated when the offer is made, before you accept, alongside pay and anything else, as part of the checklist in how to accept a job offer and what to confirm first. Once you have accepted a date, moving it is a favour rather than a negotiation.
The arithmetic
Count backwards from the day you want to start. Your notice period runs from the day you resign, not the day you accept the offer, so if you have a month's notice and want a two-week break, you need six weeks from resignation to start; resign the day the signed contract is in your hands, not before. Check whether any untaken leave at your current employer can shorten the notice or be paid out, and whether your contract has a garden-leave clause that changes the picture. Give the new employer a specific date rather than a range, with the reasoning in one line: 'I have a four-week notice period and would like a week between roles, so I could start on the 14th.' A specific date with a reason is almost always accepted; a vague 'in about six weeks' invites a push.
The wording
- At the offer call or in your reply: 'I am delighted to accept in principle. Before I confirm, could we talk about the start date? I have a four-week notice period and I would like a week between roles, which puts the earliest date at the 14th. Would that work for you?'
- For a holiday: 'I should also mention that I have a holiday booked for the first week of August, agreed some time ago. I am happy for it to be unpaid or taken from my allowance; could we note it in the offer?'
- For an earlier start: 'If it would help, I could start on the 1st rather than the 14th; my current employer may release me early.'
- If you are not working: 'I am available immediately, and I would prefer to start on the 7th to finish a commitment; is that convenient?'
- In writing afterwards: 'To confirm our conversation, the start date is the 14th and the August holiday is agreed as unpaid leave.'
- The availability question in the interview itself is the earlier version of the same conversation; its structure is in what is your availability.
When they push back
If the employer needs an earlier date, ask why: a training cohort, a project start, a budget deadline. Then see what you can move. Sometimes your current employer will release you early if you ask, especially if your replacement is already found; sometimes you can give up the break. If you genuinely cannot move, say so calmly with the reason, and ask what their options are. Most employers would rather wait two weeks than lose the candidate they chose. What you should not do is promise a date you cannot keep and hope your current employer agrees, or quietly leave early and serve a shortened notice, which follows you. If the employer attaches a deadline to the start date rather than the acceptance, the pressure tactics in how to respond to an exploding job offer apply.
Where CoPilot Interview fits
CoPilot Interview is an AI interview assistant whose free AI mock interview can run the offer call as a role-play, with the hiring manager pushing for an earlier date, so you practise asking for the date you need once, with a reason, and then stopping. The free plan gives 15 minutes a day of live help in sessions of up to 15 minutes, with AI mock interviews included. The product is built for practice; if you ever consider live help in a real interview, follow your employer's rules.
Disclosure: CoPilot Interview is our product, so weigh what we say about it accordingly.
Frequently asked questions
Can I ask for a later start date?
Yes, when the offer is made and before you accept. State a specific date with a one-line reason: notice period plus a short break. It is a normal request.
How much of a break between jobs is reasonable?
One to two weeks is routine. Three to four weeks is usually fine with a brief reason. Longer needs a conversation.
When should I resign?
After the signed contract is in your hands, not when the verbal offer arrives. Count your notice period from that day.
What if I have a holiday booked?
Raise it before signing, offer for it to be unpaid or from your allowance, and get it noted in the offer letter.
Can I move the date after I have accepted?
You can ask, but it is then a favour rather than a negotiation. Ask early and give a reason.
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