Doing It Yourself

What you are taking on

The cycle, the deadlines, the filings, the records, the questions, and responsibility for getting all of it right on a date that does not move.

Not the arithmetic, which the software does.

What it costs in money

A payroll package for a handful of employees is a small monthly sum, often less than a single hour of professional time. For a business of under twenty people this is the cheapest option by a wide margin.

What it costs in time

Four hours a month is the common figure for a small headcount, most of it spent chasing. A year is therefore roughly a working week, which most owners would not notice as a line item and would notice as a feeling.

What it costs in attention

More than the hours suggest. The run occupies thought for several days before it: whether the hours have come in, whether the starter's details arrived, whether anybody mentioned a change.

That background occupancy is the real cost of doing it yourself, and it is why the week after a run feels different from the week before.

The argument for keeping it

You find out immediately when something is wrong, you can answer a question in a minute rather than a day, you control the timing, and there is no handover cost on every change.

For a stable business with simple pay arrangements, these are substantial and often decisive.

The argument against

Everything above rests on one person being available on four or five specific days a month, for years.

What usually tips it

Not cost and not complexity, but a specific event: an illness during a run week, a resignation, or a business crossing the size where the owner's time is worth more than the fee.

The version that works

In-house, with the sequence written down, the logins accessible to a second person, and the filings handled by somebody outside.

That is a different arrangement from in-house by default, and it costs an afternoon to set up.

What to decide now rather than later

Whether this stays in-house as a decision or as a habit, and what the business would do if the person who runs it were unavailable for three weeks.

Both questions are cheap to answer in a quiet month and expensive to answer in a run week.

What it is like in the second year

The first year of running payroll yourself contains a steady trickle of things you have to look up. By the second, the monthly run is genuinely routine and takes the time it is supposed to take.

That is the point at which most owners stop thinking about the arrangement at all, and it is also the point at which the concentration risk is highest: the knowledge is now entirely internal, entirely undocumented, and entirely in one head.

The right moment to write the sequence down is the month it stops being difficult, because that is when it is clearest and when nobody feels any need to.

The things that catch people out

Not the monthly run. The events that happen rarely: a first leaver, a mid-period starter, a correction to an earlier period, a year end, a change of software.

Each of these is performed once or twice before being forgotten, and each is where an in-house arrangement most often needs somebody to ask.

Knowing in advance who that somebody is — an accountant on call, a provider's support line, a peer who does the same thing — is part of the arrangement rather than an admission that it is not working.

What it looks like when it fails

Rarely a wrong calculation. Usually a missed filing nobody noticed, a leaver left open until year end, or a run that did not happen in the week somebody was ill.

All three are absences rather than errors, which is why checking your own work does not catch them and why the calendar and the deputy do.

The cost nobody puts on the invoice

A payroll run occupies the person who owns it for several days before it happens, and that occupancy does not scale down with headcount. A business of six people and one of sixteen produce much the same background hum.

An owner who finds the run stressful is usually not finding the work difficult. They are carrying a fixed obligation to other people with nobody to hand it to, which is a different thing entirely and is not fixed by getting faster.

The honest summary

Doing it yourself is usually right for a small business, and the thing that makes it wrong is never the payroll. It is the concentration.