A notice period is the stretch of time between resigning (or being dismissed) and the employment actually ending. In UK tech hiring it is the detail that moves start dates by a quarter.
The candidate is perfect, the interviews went well, the team wants them started. Then comes the sentence that stalls the whole plan: "I'd love to, but my notice period is three months." And the obligation runs both ways: you owe one to your employer, and your employer owes one to you.
The essentials in one place. What a notice period is. How long it lasts in the UK, from the legal floor to the real-world contract norms. How to answer the question in an interview. And what to do when nobody can afford to wait three months.
TL;DR. A notice period is the time an employee works between resigning and leaving, and it runs both ways between employer and employee. In the UK, contract terms of one to three months are standard in tech, with six months at senior level, while the legal minimum starts at just one week. Employers can shorten a wait with payment in lieu of notice or garden leave, or sidestep it entirely by working with freelance talent that starts in days.
What is a notice period?
A notice period is the contractual time between saying "I'm leaving" (or being told) and the employment relationship actually ending. During it, the employee keeps working, or at least keeps being paid, and the employer keeps the handover, the knowledge transfer and the client relationships in order.
Two details people miss. First, the obligation is mutual: your contract binds your employer to give you notice too, and the dismissal side usually carries longer minimums than the resignation side. Second, what governs your real notice period is your contractual notice: the number written in your contract, not the legal minimum. The law only sets a floor, and contracts in UK tech almost always sit well above it.
How long is a notice period in the UK?
The typical pattern in UK tech runs in steps. One week during probation. One month for junior and mid-level roles. Three months from senior level onwards, and up to six months for directors and executives. Three months is the number that shapes hiring plans, because it is the default for exactly the senior profiles companies compete for.
Under the contract sits the statutory notice floor set out in the Employment Rights Act and summarised on GOV.UK. The minima differ by direction:
| Length of service | Minimum the employer must give | Minimum the employee must give |
|---|---|---|
| 1 month to 2 years | 1 week | 1 week |
| 2 years or more | 1 week per full year of service, up to 12 weeks | 1 week (whatever the contract says, this is the legal floor) |
| Under 1 month | No statutory minimum | No statutory minimum |
Notice also sets the clock on other things: the deadline for confirming or varying contract terms, and the point from which restrictive covenants start counting. If a contract is silent, the statutory minima apply; in practice, almost no tech contract is silent.
How do I answer "what is your notice period"?
Interviewers ask for one reason: to build the start date into their plan. The best answer is the boring one: the exact truth, stated without apology. "My contractual notice is three months, though in practice my employer has let people leave in six to eight weeks once a handover is agreed." If you are flexible, say so; if you are not, say that too. Guessing optimistically here creates the classic failure mode: an offer built around a start date that later slips by two months, which helps nobody.
For candidates in a job search, one more thing is worth knowing. "What is your current notice period" and "what notice period would you need" are different questions. The first is a fact about your contract. The second is a negotiation about how fast you can realistically move, and it is fair to answer it with the honest range rather than the contractual worst case.
Can a notice period be reduced or waived?
Yes, through three mechanisms that come up constantly in UK hiring. Payment in lieu of notice (PILON) ends the employment immediately and pays the notice instead. Expensive, but instant. Garden leave keeps the employee on the payroll at home, out of the business, which protects the employer but does not free the person for a new role. And a buy-out, where the new employer pays the old one to release the candidate early, is common enough in tech that senior candidates sometimes negotiate it into the offer. All three need agreement; none of them can be forced unilaterally without breaching the contract.
Notice periods vs immediate availability: the freelance gap
Here is the strategic point most guides skip. When a three-month notice period meets a project that cannot wait (a launch, an audit, a platform migration with a fixed date), the permanent route stalls. No matter how good the candidate is. The contractors, consultants and freelance specialists of the UK market sit structurally outside this problem: one engagement ends and the next can begin within days, not months.
That is why many UK hiring managers now split the plan in two. They start the permanent search knowing the notice clock is ticking, and bring in an experienced independent professional to cover the gap in the meantime. The work that covers well is easy to identify: scope that can be delegated cleanly, seniority that matters more than institutional memory, and a defined end date. If the second half of that plan is the part you are missing, Shakers works with companies precisely on this frontier, without the wait that a permanent process imposes. For roles where the pattern repeats, such as a project manager stepping into a delayed programme, it is a practical response rather than a workaround.
- What is a notice period when applying for a job?
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It is the notice you owe your current employer before you can leave, and recruiters ask about it to plan your start date. If you are not employed, the honest answer is "no notice period. I can start immediately", which in UK tech is itself an advantage worth stating.
- How long is a notice period in the UK?
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It is whatever your contract says. UK tech norms are one week in probation, one month junior and mid-level, three months senior, and up to six months at director level. The legal minimum floor is one week for employees with a month or more of service, with employers owing one week per full year served, capped at twelve weeks.
- How do I answer "what is your notice period" in an interview?
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State your contractual notice exactly, add any real flexibility you have, and stop. For example: "Three months contractually, though my manager has agreed six to eight weeks for a clean handover before." Optimistic guesses that slip later damage the offer more than an honest longer date.
- Should I give two or four weeks' notice?
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Give what your contract requires, not less; walking out without contractual notice is a breach, however common it feels. If your contract says one month and you want to leave in two weeks, ask for a waiver: employers often agree when the handover is covered. The statutory floor of one week only applies when the contract is silent.
