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Hire vs Automate Calculator | Should You Hire or Automate? | Montaj Digital
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Should You Hire or Automate?

Before you sign a contract of employment, run the numbers. Compare the true cost of hiring against automating the same work and find out which option makes more financial sense for your business.

A £35k hire typically costs employers over £43,000 in year one
Well-scoped automations typically pay back in 3 to 6 months
Up to 75% of admin tasks in service businesses can be automated

When your business hits a capacity wall, the first instinct is to hire. But for service businesses with admin-heavy workflows, automation often covers the same ground at a fraction of the cost. This calculator shows you the true financial comparison: what hiring actually costs once you factor in employer taxes, pension, and recruitment, versus what automation would cost to build and maintain over the same period.

It will not tell you which is right for your business. It will tell you what the numbers look like before you decide.

Hire vs Automate Calculator

1
The capacity gap
How many additional hours per week are you trying to cover?
Nature of the work *
What kind of tasks make up most of the capacity gap?
Admin and repetitive
Reporting, invoicing, data entry, scheduling, email follow-ups
~75% automatable
A mix of both
Admin overhead alongside some client-facing or delivery work
~40% automatable
Client-facing and delivery
Consultations, account management, specialist knowledge work
~15% automatable
2
The hire option
Gross salary you would advertise. Employer NI and pension are added automatically.
£
Agency fees, job board costs, or internal time. Defaults to 15% of salary if left blank.
£
3
The automate option
Enter a quote if you have one, or use the complexity estimator below
£
Ongoing subscriptions, hosting, or maintenance fees per month
£
Don't know your build cost? Choose a complexity level:
Simple
£1,000 - £5,000
1 to 2 automations, single system. e.g. email sequences, basic CRM updates, form-to-spreadsheet.
Intermediate
£5,000 - £10,000
3 to 5 automations, multi-system. e.g. reporting suite, CRM plus invoicing, onboarding workflows.
Complex
£10,000+
Full department build, custom logic, multiple integrations, exception handling and monitoring.

Your comparison breakdown

Recommendation
Hire
Year 1 total cost -
Year 3 total cost -
Monthly ongoing cost -
Capacity covered -
Automate
Year 1 total cost -
Year 3 total cost -
Monthly ongoing cost -
Capacity covered -
3-year cost difference
-
Total cost gap between hire and automate
Automatable hrs per week
-
Estimated based on work type selected
True hire cost (year 1)
-
Salary, employer NI, pension, recruitment

Want to know exactly what to automate?

Take the free AI Readiness Quiz to identify your highest-impact automation opportunities and get a personalised action plan for your business.

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The true cost of hiring that most businesses miss

Most business owners think about a hire in terms of the advertised salary. The actual cost is considerably higher. On top of gross salary, UK employers pay National Insurance contributions of 13.8% on earnings above the secondary threshold, a minimum 3% pension contribution under auto-enrolment, and typically 10 to 20% of first-year salary in recruitment costs through agencies or job boards.

Before the new hire produces any value, there is also onboarding time (typically two to four weeks of reduced productivity), equipment and software licences, and the management overhead of integrating someone into the team. For a role advertised at £32,000, the real first-year cost to the employer typically lands between £42,000 and £48,000.

Automation does not carry employment costs. Once built, the ongoing cost is tooling and maintenance, typically a small fraction of an ongoing salary. The upfront build cost is the trade-off, and for admin-heavy work it usually resolves within the first quarter.

When hiring is still the right answer

Automation is not a substitute for human judgment, relationship management, or specialist knowledge delivery. If the capacity gap is primarily in client-facing work, consulting, or tasks that require discretion and adaptability, hiring is the right call. Automation works best on tasks that are clearly defined, high frequency, and follow consistent steps each time.

The most effective approach for growing service businesses is usually to do both: hire for the delivery work that genuinely requires a person, and automate the admin overhead surrounding it. A well-automated business can often scale headcount more slowly than its revenue because each hire is more productive from day one, with less time lost to repetitive manual processes.

What counts as automatable work

The table below outlines common task types in service businesses and their typical automation suitability. Use it to sense-check how you categorised the work in the calculator above.

Task type Examples Automation suitability
Data entry and formatting CRM updates, spreadsheet population, form processing High
Report generation Monthly performance reports, financial summaries, client updates High
Email and communication sequences Follow-ups, onboarding emails, reminders, confirmations High
Scheduling and coordination Booking management, internal notifications, approval routing Medium
Document creation Proposals, contracts, invoices generated from templates Medium
Client delivery and consulting Advice, strategy, relationship management, knowledge work Low

Frequently asked questions

Does this calculator account for salary growth over time?
No. To keep the comparison clean, the calculator uses a flat salary cost across years 1 and 3. In practice, most employees receive salary increases of 2 to 5% annually, which would push the 3-year hire cost higher than shown here. Automation costs do not change unless you upgrade the tooling or expand the scope, so the real advantage of automating typically grows over time.
How accurate is the employer NI calculation?
The calculator uses the employer NI rate of 13.8% on earnings above the secondary threshold (£9,100 per year for 2024/25), plus 3% pension on total salary. For USD, a 22% uplift approximates US payroll taxes and basic benefits. These are estimates rather than precise figures. Consult your accountant or HR team for an exact cost specific to your situation.
What if I need both a hire and automation?
That is often the right answer, particularly for a mixed capacity gap. The recommended approach is to automate the admin overhead first, then assess whether a hire is still needed for the remaining delivery work. Many businesses find that automating 40 to 60% of admin means the remaining work can be absorbed by existing staff, or that a part-time hire at lower cost covers what is left.
How much does it cost to automate admin workflows in a service business?
For a focused suite covering the main admin workflows in a department (reporting, CRM updates, onboarding sequences, invoice processing), expect a build cost of between £3,000 and £8,000. Ongoing tool costs are typically £50 to £200 per month. Against a £35,000 salary, that means the automation pays for itself within two to four months of year one salary cost alone.
What build cost should I enter if I do not have a quote yet?
If you have a quote from an automation specialist, use that figure. If you are estimating, use £3,000 to £5,000 for a small business covering 2 to 3 core workflows, or £5,000 to £10,000 for a full department. A free AI Implementation Audit from Montaj Digital will give you a scoped cost estimate specific to your business within 48 hours.

Not sure what your automation would cost to build?

Take the free AI Readiness Quiz. We will identify your highest-impact workflows and help you understand what automating them is worth before you commit to anything.

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