Why the site exists
Most people resign, or are made redundant, only a handful of times across a working life. When it happens, the questions arrive faster than the answers: when is my last day, how much notice do I have to give, what is PILON, how is redundancy calculated, what happens to my holiday, can I take a new job during garden leave. The information exists, but it’s scattered across employment contracts, ACAS pages, gov.uk, solicitor blogs and trade-union briefings.
We built Notice Period Calculator UK to put the practical answers in one place. The calculators do the date and money arithmetic in a few seconds. The guides explain the rules that sit behind the arithmetic. The FAQs cover the questions that come up most often. Everything is free, no signup is required, and no personal data leaves the browser.
Who the site helps
The intended reader is an employee, contractor, or recently ex-employee in the UK who is trying to understand what happens next. The most common situations the site is designed for:
- You’ve decided to resign and need to work out your final working day from your contractual notice period.
- You’ve been told you’re at risk of redundancy and want to check the figures the employer is offering.
- You’ve received a settlement agreement and want to understand what’s in it before taking legal advice.
- You’ve been put on garden leave and want to know what you can and can’t do during the period.
- You’re considering going freelance, contracting, or retraining after employment ends, and need a clear view of the financial runway.
- You’re in probation and need to know your notice rights before resigning or being dismissed.
The site is not designed for employers running HR processes, legal practitioners preparing case files, or recruiters handling onboarding. Those audiences are better served by professional reference works and the relevant statutory guidance directly.
What the site covers
The site is organised into four main areas. Calculators handle the maths: the notice period calculator, the redundancy pay calculator, the PILON calculator, the holiday entitlement calculator, the garden leave calculator, the settlement agreement calculator and several others. Each runs entirely in the browser; no input or result is sent to a server.
Guides explain the rules behind the calculators in plain English. The complete UK resignation guide covers the journey from decision to first 30 days after leaving. Topic-specific guides cover PILON, garden leave, how notice periods work, and the financial side of leaving work.
FAQs at /faqs/ answer the questions people actually ask: can I resign during probation, can my employer reject my resignation, what happens to unused holiday, how much notice do I need to give. Each FAQ links to the relevant calculators and guides.
Financial planning at /financial-planning/ collects the tools and articles that cover the money side of leaving work: emergency funds, runway, budgeting after redundancy, tax on settlement payments, and the transition to self-employment or a new role.
What the calculators can and can’t do
The calculators apply the statutory and contractual rules that govern most UK employment situations. They produce accurate figures for the standard cases: a standard contract with weeks or months of notice, the statutory redundancy formula at s.162 of the Employment Rights Act 1996, the PILON tax treatment under the Post-Employment Notice Pay rules from 2018, and the holiday entitlement framework from the Working Time Regulations.
They don’t replace legal or financial advice. They can’t see your specific contract. They don’t know whether your employer has a non-standard clause that changes the picture. They can’t advise on whether to accept a settlement, challenge a dismissal, or pursue a tribunal claim. For those questions the right route is ACAS, Citizens Advice, a trade union if you’re a member, or an employment-law solicitor.
Read more about how content is researched, verified and maintained on our editorial policy and how we review content pages.
Our commitment to accuracy
UK employment law and statutory figures change. The £751 weekly redundancy pay cap, the £30,000 termination tax-free allowance, the PENP rules, the bank holiday list, the tribunal time limits and the statutory notice formula are all reviewed at least annually, and within a few weeks of any official change announced by HMRC, ACAS or the Department for Business and Trade.
Every calculator runs against the same shared library of pure functions used by the published guides. When a statutory figure changes, the constant is updated in one place and every calculator and article that references it reflects the change immediately. The most recent review date is shown at the top of every authority page.
We get things wrong sometimes. When a reader spots a mistake, corrections are made promptly through the contact page. The full corrections process is documented at how we review content.
Who runs the site
Notice Period Calculator UK is published by POW XD Ltd, a company registered in the United Kingdom. The site is written and maintained as Notice Period Calculator UK; no individual is presented as its author.
The site does not claim to be a lawyer, an HR professional or a financial adviser, and none of its pages is legal or financial advice. What it offers is the tools: the statutory rules turned into calculators that show their working, with plain-English explanations next to them.
How content is written and checked
Our guides and calculator explanations are drafted with AI assistance and checked against official sources (GOV.UK, HMRC, Acas and legislation.gov.uk) before publishing. Figures are reviewed on the date shown on each page. Every page names the sources it relies on, and the calculators run on the same shared functions, which are covered by automated tests against the statutory examples. This is general information, not legal or financial advice.
Where a question needs a professional judgement (unfair dismissal compensation, whether a restrictive covenant is enforceable, tax on a complex termination package) the page points you to Acas, Citizens Advice, a trade union or an employment-law solicitor rather than trying to answer it.
Contact: /contact/. Editorial policy: /editorial-policy/. Review methodology: /how-we-review-content/.
How the site is run
Notice Period Calculator UK is an independent site. It isn’t affiliated with any government body, employer, legal firm, recruitment agency, or trade union.
The site is funded through a combination of display advertising and affiliate links (see how the site is funded). Editorial content is never influenced by partner relationships. Affiliate links are labelled where they appear. There are no paid placements, no sponsored articles, and no influence over which calculators or guides are published.
Privacy and data
We hold the privacy of users seriously. The calculators run entirely in your browser; nothing about the dates, salaries or other figures you enter is sent to a server or stored on our infrastructure. Our own banner asks for consent to analytics cookies; advertising consent is asked separately by Google’s consent message, which appears for visitors in the UK, EEA and Switzerland. Full detail at privacy.
UK employment focus
The site covers UK employment law specifically. Many of the principles that apply to England, Wales and Northern Ireland also apply across Scotland, but Scotland has different income tax bands and some procedural differences. Where the difference matters, the page calls it out. The site does not cover Republic of Ireland or other jurisdictions.
Contact and feedback
We welcome corrections, suggestions, and general feedback. The contact page has the email address. We read everything; we reply to most things; and we’re slow to reply during busy periods. For urgent employment-law questions, please contact ACAS or a solicitor rather than waiting for us.