Hiring someone is the good part. Then the paperwork arrives: contract, right to work check, bank details, emergency contacts, policy acknowledgements, equipment, training. For a business without an HR department, employee onboarding is where a good start turns into a scramble.
It does not have to. Most onboarding chaos is not caused by the volume of documents - it is caused by collecting them in five places and then trying to remember which ones came back. Here is a process that fixes that, and the two points where UK law is actually specific about timing.
Employee onboarding is mostly a paperwork problem
Ask someone what went wrong with their last new starter and you rarely hear "the induction was poor". You hear that the contract went out late, that nobody could find the signed copy, or that a form was still outstanding three weeks in.
The cause is almost always the same: information scattered across email, a shared drive, a printed folder and somebody's phone. No single place shows what is done and what is missing, so the answer is always "I think so".
Before day one: what the law actually requires
Most of onboarding is good practice you can shape to suit you. Two parts are not, and both are worth getting exactly right.
The right to work check happens before employment starts. You must check the person's right to work in the UK before they begin, keep a copy that cannot be changed, and record the date the check was made (source: GOV.UK — Check a job applicant's right to work). Checked 11 September 2026. Doing it in week two does not give you the statutory excuse - the timing is the point.
The written statement is a day-one right. Employees and workers must be given a written statement of particulars on or before their first day of work (source: Employment Rights Act 1996, section 1, and GOV.UK — Employment contracts). Checked 11 September 2026.
That second one catches people out, because it used to be a two-month window. It changed in April 2020, and it now covers workers as well as employees - so a casual member of staff joining on Saturday needs theirs by Saturday. There is more detail in our guide to what must be in a UK employment contract.
Everything else in this article is process. These two are deadlines.
A reusable employee onboarding checklist
No two roles are identical, but the core repeats for nearly every hire. Write it down once and adjust per role rather than rebuilding it each time:
- Right to work check completed and dated - before the start date
- Written statement or contract issued - on or before day one
- Bank details and tax information
- Emergency contact and any medical information they choose to share
- Policy and handbook acknowledgements
- Equipment, accounts and access
- Any training that must be completed before they start the work
- Probation review date, booked rather than remembered
The two items with deadlines are marked deliberately. A checklist that treats every line as equally urgent is a checklist people stop reading.
Collect documents once, in one place
Chasing paperwork by email means filing it in several places, waiting on replies, and eventually hunting for one missing signature. Give a new starter a single route to send everything, and give yourself a single place it lands.
What you get from that is not tidiness for its own sake. It is being able to see what is outstanding at a glance rather than reconstructing it from an inbox, and being able to produce a document later without a search.
One point worth building in from the start: only collect what you actually need. Personal data must be adequate, relevant and limited to what is necessary, and kept no longer than necessary (UK GDPR, Article 5). An onboarding form that asks for everything because it might be useful one day is a liability you are creating on purpose.
Week one, month one, ninety days
Onboarding does not stop when the last form comes back. The first ninety days are where a hire either settles or quietly disengages.
Week one is about the basics working: they can get in, log in, and know who to ask. Keep formal training light. Somebody who cannot access their email is not absorbing a values session.
Month one is when the role becomes real. This is the point to check what they have actually been doing against what the job description said, because a mismatch found at four weeks is a conversation and at six months it is a problem.
Ninety days is the probation decision, and it works best when it is not a surprise to anyone. If the review is the first time concerns are raised, the process has already failed - whichever way the decision goes.
What to automate, and what to leave alone
Worth automating: collecting documents, storing them against the person rather than in a folder, and tracking the dates onboarding creates - probation reviews, training renewals, anything with an expiry. Those are the parts that depend on somebody remembering, which is exactly where they fail.
Not worth automating: the induction itself. A templated welcome that clearly went to everyone is worse than a short conversation. The point of removing the paperwork burden is to free up the time for that conversation, not to replace it.
In HR Henry, each person has one record with their documents attached and typed, and anything with an expiry feeds the expiring-records view - so a certificate collected at onboarding surfaces again before it lapses rather than being filed and forgotten. The mechanics are in our guide to setting up an HR compliance tracker.
Where onboarding usually goes wrong
- The right to work check slips to week one. The single most consequential mistake on this list, and the easiest to avoid.
- The written statement is treated as "the contract, eventually". It is due on or before day one.
- Documents arrive by email and stay there. An inbox is not a filing system, and it is not searchable by anyone else.
- The probation date is not booked. Ninety days passes quietly and the decision gets made late, by default.
- Expiry dates collected at onboarding are never recorded. The certificate goes in the file and nobody looks at it again until it matters.
- Everything is front-loaded into day one. Nobody retains eleven policies in an afternoon.
Fix the first two and you have dealt with the compliance risk. Fix the rest and you have dealt with the scramble. That is most of employee onboarding: two legal deadlines, and a system for everything else.
Frequently asked questions
What paperwork is legally required when onboarding in the UK?
Two things have hard timing. A right to work check must be completed before employment starts, and the written statement of particulars must be given on or before the first day. Everything else - bank details, emergency contacts, policy acknowledgements - is necessary but not time-bound in the same way.
When does a new employee need their written statement?
On or before their first day. Since April 2020 it is a day-one right rather than something you have two months to produce, and it applies to workers as well as employees.
Can I do a right to work check after someone starts?
No. The check has to be done before employment begins, you must keep a copy that cannot be changed, and you must record the date the check was made. A late check does not give you the statutory excuse.
How long should onboarding paperwork take?
For a small business, collecting documents should be minutes rather than hours once you have a reusable checklist. The time sink is almost never the forms - it is chasing people by email and then filing the replies in five different places.
What should a new starter checklist include?
Right to work check, written statement or contract, bank and tax details, emergency contacts, policy acknowledgements, equipment and account setup, any training that must be completed before they start work, and the dates of their probation review.
Do I need HR software to onboard well?
No. A checklist and a folder will do for a handful of hires a year. The case for software is when the same documents are collected repeatedly, when several people need to see progress, or when onboarding produces records with expiry dates you will have to track afterwards.