The first hire is treated as a milestone, and it is. It's also a structural change in what the business is, and a lot of people take the step without appreciating how much changes.
The cost is not the salary
The first surprise. Employing somebody costs substantially more than their wage.
Employer social contributions or payroll taxes, which vary by country but are rarely trivial. Pension contributions where mandated. Employers' liability insurance, which is legally required in many jurisdictions. Holiday pay, which is part of the salary but means you're paying for weeks when no work happens. Sick pay obligations.
Then the practical costs: equipment, software licences, workspace, and the time you spend managing rather than working.
A reasonable planning assumption in many countries is that the total cost of employment runs meaningfully above the headline salary, and the figure varies enough that working out your specific number before committing is essential.
The obligations that arrive
Employment brings a set of legal responsibilities that don't apply to a sole trader.
Payroll registration and regular reporting to tax authorities. Written terms of employment, required within a specified period in most jurisdictions. Compliance with working time, minimum wage and holiday entitlement rules. Health and safety obligations, including risk assessments. Data protection obligations regarding employee records. Pension auto-enrolment where it applies.
None of this is difficult individually. Collectively it's an administrative function that didn't exist before, and it doesn't go away.
The practical advice is to use a payroll service rather than doing it manually. The cost is modest and the penalties for errors in payroll reporting are not.
The job change
The part people are least prepared for. Before the first hire you do the work. Afterwards, part of your job is making sure somebody else's work happens.
That's a genuinely different activity requiring different skills: explaining things clearly, setting expectations, giving feedback, noticing when something isn't going well before it becomes a problem.
The common failure is continuing to do the work yourself while also employing somebody, which produces an underused employee and an overloaded owner. It usually stems from the work being faster to do than to explain, which is true in the short run and not over a year.
The associated failure is hiring somebody to do the thing you enjoy and keeping the administration. Understandable and generally the wrong way round — the highest-value delegation is usually the work you're worst at and least motivated by.
What to hire for first
A useful exercise before writing any job description: track how you actually spend two weeks, in fifteen-minute blocks. Most people are surprised.
Then categorise: what only you can do, what requires judgement but not specifically yours, and what is straightforwardly procedural.
The first hire should usually take the third category and as much of the second as possible. That frees the largest amount of your time per pound spent.
The exception is where the constraint on the business is a specific capability you don't have — sales, a technical skill — in which case hire for that regardless of the time arithmetic.
The probation period
Use one, and use it properly.
Most jurisdictions allow a probationary period with shorter notice, and the point is to create a genuine decision point rather than to drift into permanence.
What that requires is actually assessing. Set out what success looks like in writing at the start, review it at intervals during the period, and make an explicit decision at the end.
The common failure is treating probation as a formality and discovering at month eight that it isn't working, at which point the process is considerably harder.
Employment protection rules vary substantially by jurisdiction and the thresholds matter. Knowing where they sit before you hire is worth an hour of research.
Getting the first one right
A few things that matter more for a first hire than for a tenth.
Tolerance for ambiguity. A small business has no established processes. Somebody who needs clear structure will struggle, however competent.
Breadth over depth. Early employees do several jobs. A specialist who only wants to do their speciality is a poor fit at this size.
Direct communication. With two people there's no buffer. Somebody who won't tell you when they disagree is a problem, because you have no other source of challenge.
Reference checks. Actually do them, and speak to people rather than accepting written references. At a small business a bad hire is proportionally far more damaging than at a large one, and the recovery is slower.
The thing nobody warns you about
Somebody now depends on the business for their income and their plans.
That changes decision-making. Risks you'd have taken alone feel different. A bad month is no longer only your problem.
Most owners find this weighs more than they expected, and it's worth being ready for. It's also, for many, the thing that turns a self-employment arrangement into something that feels like a business, which is not entirely a burden.
The alternatives worth considering first
Before committing to employment, several arrangements deliver some of the benefit with less of the obligation, and each suits particular situations.
Contractors and freelancers, for defined pieces of work. Genuinely useful and it comes with a warning: employment status is determined by the actual working relationship rather than by what the contract says, and misclassification carries real liability in most jurisdictions. Somebody working full time under your direction for a sustained period is likely an employee whatever the paperwork.
Agency or umbrella arrangements, where a third party employs the person. More expensive per hour and it removes the administrative burden entirely, which for a first hire is sometimes worth the premium.
And part-time employment, which is frequently the right answer and is under-considered. A capable person for three days a week is often more valuable than a less capable one for five, and the cost step is smaller.