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Downtime

/ Downtime Cost Calculator /

a planning tool, not a quote

What does an hour of downtime really cost?

When an IT problem stops someone working, the cost is not the salary on their contract. It is the fully loaded cost of employing them: salary plus employer National Insurance, pension and the overheads that sit behind every desk. This calculator turns an annual salary into that true cost to the firm, then breaks it down to the minute, so a delay can be measured rather than guessed at.

Use it to put a number against the disruptions you already recognise, and to weigh what reliable IT is worth to a firm your size. The defaults below reflect a typical UK working pattern. Adjust any of them to match your own.

Your figures

£

The gross annual salary of the person whose time is lost.

× salary

Salary plus on-costs: employer National Insurance, pension and overheads. 1.3 is a common rule of thumb.

52 weeks less holiday.

Days worked in a normal week.

Productive hours in a working day.

Cost to the company

£0 fully loaded cost, per year
£0 per week
£0 per day
£0 per hour
£0 per minute

How this is worked out

  • The salary is multiplied by the true cost multiplier to give the fully loaded annual cost: what the firm actually spends to keep that role in place, not just the figure on the payslip.
  • That annual cost is divided by the productive hours in a year (working weeks × days per week × hours per day) to give a cost per hour.
  • The per minute, per day and per week figures follow from the per hour cost and your working pattern.

The numbers are a guide for planning. They do not attempt to capture knock-on effects such as a missed client deadline, a delayed completion or the time other people lose waiting. In practice those push the real cost higher, which is the point worth holding on to: downtime is rarely as cheap as it looks.

If you would like to talk through what reliable IT is worth to a firm your size, get in touch and we will tell you what good looks like.

get in touch

Talk to us about how your firm runs IT.

Wealth managers, chartered accountants and other regulated firms across the UK come to us when IT and security need to be brought under one accountable team. Tell us where you are now, and we will tell you what good looks like.

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