When and how to resign properly
A resignation letter ends your employment on a date both sides can point to. It starts your notice period and fixes your last day, which is what final pay, accrued holiday and any later dispute will be calculated from.
Your employer can't refuse a resignation, but it has to be clear, unequivocal and freely given. If you're pushed out by bullying, unsafe conditions or a fundamental change to your job, resigning can instead be treated as a dismissal: constructive dismissal under the Employment Rights Act 1996, section 95(1)(c) in the UK, or in many US states the basis of a wrongful-termination claim.
Which situation are you in?
The letter itself barely changes. What changes is what you keep: severance, references, unemployment benefits.
- You've accepted another offer. Give two weeks' notice (US) or your contractual notice (UK). Keep it warm, offer a proper handover and don't name the new employer.
- You're leaving without another job. Same letter. Be aware that in most US states quitting voluntarily disqualifies you from state unemployment benefits.
- You're still on probation. Notice is usually a week in the UK and nothing under US at-will employment, but a letter still fixes the date for your final pay.
- You're retiring. Pension and retirement account steps (401(k), IRA rollovers, defined-benefit elections) run on their own timelines. The resignation letter doesn't start any of them.
- You're leaving because of harassment, discrimination or unsafe conditions. Get legal advice before you resign in writing. A constructive-dismissal claim can protect unemployment eligibility and back pay, but only if the letter doesn't give those rights away.
- You're moving, following a spouse or caring for a dependant. Some US states treat "compelling family circumstances" as good cause for unemployment benefits. State the reason plainly in the letter and check your state agency's list.
- You want to leave "effective immediately". That's only safe if your contract allows it, you're on a zero-hours contract, or you're resigning over a fundamental breach by the employer. Otherwise the employer can deduct the unworked notice from your final pay or sue for breach of contract.
The legal framework
In the United States, almost every job is at-will: either side can end it at any time, for any lawful reason, with or without notice. The exceptions are a written contract, a collective bargaining agreement or a specific state statute; Montana is the one state that departs from at-will, through its Wrongful Discharge from Employment Act (Mont. Code §§ 39-2-901 to 39-2-915). Two weeks' notice is custom, not law. Check your offer letter, the employee handbook and any equity documents before you sign anything.
Final pay rules differ by state. California Labor Code § 202 requires final wages within 72 hours if you gave no notice, and on your last day if you gave at least 72 hours' notice. If the employer is late, waiting-time penalties under § 203 can reach hundreds of dollars. New York Labor Law § 191 sets weekly or bi-weekly timing, and Massachusetts G.L. c. 149 § 148 requires payment on the next regular payday. The dated letter is your evidence if the deadline is missed.
In the United Kingdom, the Employment Rights Act 1996, section 86 sets the statutory minimum: after one month's continuous service you owe your employer at least one week's notice. Your contract can require more, and one to three months is normal for professional roles. Section 1 of the same Act requires your employer to have given you a written statement of particulars that includes notice terms. Find it before you write.
Notice periods at a glance
- US at-will, hourly: no statutory notice; two weeks is the convention
- US salaried or executive: whatever your contract or severance plan says, often 30 days
- UK, after one month's service: one week statutory minimum from the employee
- UK contractual notice (typical): one month for most staff, three months for senior or technical roles
- UK probation: usually one week, or as the contract sets out
An employer who wants you gone straight away may offer payment in lieu of notice (PILON). In the UK, PILON is taxed as earnings under the rules introduced by the Finance (No. 2) Act 2017. In the US, severance is contractual unless the employer is covered by the WARN Act, which applies only to mass layoffs.
Garden leave and "don't come in tomorrow"
Once you've handed in the letter, your employer can keep you working through your notice, send you home on full pay (garden leave) or pay you off and end things that day (PILON). Garden leave is mostly a UK and senior-executive practice. You stay employed and paid, still bound by confidentiality and good faith, but you can't come in or start the new job. In senior UK contracts these clauses can run from 3 to 12 months, and Tullett Prebon plc v BGC Brokers LP [2010] EWHC 484 confirms employers can enforce garden leave to stop immediate competition. In the US it's rarer, though finance and tech use it in place of non-competes, especially in California, where post-employment non-competes are unenforceable under Cal. Bus. & Prof. Code § 16600.
Severance: what to ask for and when
Resigning almost never comes with severance, which is normally paid when you're let go. The exceptions:
- You're being managed out. Don't resign. Negotiate a separation agreement first, because once you resign you have nothing left to bargain with.
- There's a severance plan in the handbook or your offer letter. Some large employers pay severance to people who resign and stay through the transition. Read the plan.
- Constructive dismissal. If conditions forced you out, the resignation may count as a dismissal, which keeps severance, unemployment and statutory protections on the table. Get advice before you write the letter.
- Equity. It isn't severance, but read your stock-option agreement first. The usual 90-day exercise window starts on the day you leave, and many people lose vested options simply by missing it.
A two weeks' notice email (US)
If your workplace expects a short email rather than a formal letter, the structure is the same: the date, your last day, no reasons. Subject line: "Resignation, [Your Name]". First line: "I am resigning from my position as [title]. My last day will be [date], two weeks from today." Add one sentence offering to help with the handover, then sign off. Don't explain. Hand over a printed copy too.
What every resignation letter must contain
- Your full name, home address and email
- The employer's legal name and the person it's addressed to (your manager or HR)
- The date and the city
- A plain statement that you are resigning
- Your job title and start date
- Your last working day, worked out from your notice period
- An offer to help with the handover
- A short closing and your signature
You don't have to say why you're leaving, and usually you shouldn't. "I am resigning from my position as [title], effective [date]" is enough. Don't criticise the employer, your colleagues or the conditions in writing: the letter stays in your personnel file and can come back up in reference checks.
How to deliver the letter
Email is fine for at-will jobs in the US. The safest method anywhere is a signed PDF attached to an email, plus a printed copy handed to your manager. In the UK, sending the original by Royal Mail Signed For 1st Class gives you a delivery record that fixes when your notice started, which helps if pay or holiday is disputed later. In the US, USPS Certified Mail with Return Receipt does the same job for contractual or executive resignations.
Notice runs from the day your employer receives the letter, not the day you wrote it. Keep the postal receipt and tracking number until your final paycheck has cleared.
Your two weeks, day by day
Day 0: hand the letter to your manager, then email the PDF to HR. Put your last day in the calendar. Copy personal files off the work laptop only if IT policy allows it, and never take company data.
Day 1: ask HR to confirm in writing your last day, the date of your final pay and any payout for unused vacation.
Days 2–7: write a handover document covering open projects, key contacts, vendor logins and recurring tasks. One shared document beats ten Slack messages.
Days 8–12: meet the people you work with one by one, hand over ownership and forward the important email threads.
Day 13: check with HR that final pay, your COBRA election (US) or your P45 (UK) is on schedule. Ask for a written reference or a LinkedIn recommendation while you're still there.
Day 14: return company property, read any exit paperwork before signing it (some of it includes a release of claims) and confirm where your tax forms should go (W-2 in the US, P45 and P60 in the UK).
Special situations
Probation: the notice period is shorter, often a week, but confirm it in writing anyway.
Unemployment benefits: in the US, resigning usually disqualifies you from state unemployment insurance unless you can show good cause, such as unsafe conditions, harassment or a substantial change to your terms. Each state agency decides. In the UK, resigning generally leads to a Universal Credit sanction (up to 13 weeks under regulation 113 of the Universal Credit Regulations 2013) unless you had good reason.
Restrictive covenants: non-compete and non-solicit clauses outlive your resignation. In the US it depends on the state: California, North Dakota, Oklahoma and Minnesota largely refuse to enforce employee non-competes, and the FTC's 2024 nationwide ban was set aside in court before it took effect. In the UK, a covenant is enforceable only if it protects a legitimate business interest and goes no further than necessary (Tillman v Egon Zehnder [2019] UKSC 32).
References after you leave
Most US employers only confirm your dates and job title, because anything more carries a defamation risk. The references that help come from individual managers willing to talk or write a LinkedIn recommendation, so ask before you go. In the UK, Spring v Guardian Assurance plc [1995] 2 AC 296 requires employers to take reasonable care when they give a reference, but they have no general duty to give one. For senior roles, an agreed factual reference is usually written into the exit paperwork.
Five mistakes that cost people money
- Resigning out loud and never in writing. If the date is disputed, so is your final pay.
- Walking out before the notice ends. The employer can deduct the unworked notice from your final pay (UK) or claim breach of contract (US).
- Venting in the letter. It costs you the reference and any chance of being rehired.
- Forgetting equity, 401(k) or pension paperwork. Vested options often have a 90-day exercise window.
- Ignoring the non-compete. A new employer can withdraw an offer if a covenant blocks you.
What Lettrio writes for you
Give your job title, your employer, your start date and the notice you owe. Lettrio writes the resignation with your last working day worked out from that notice, a short handover offer and a closing that keeps the door open. Download the PDF, email it to HR, or send it by Royal Mail Signed For or USPS Certified Mail.