SME HR Calculator Suite (UK)

Inputs (holiday entitlement)

1) Leave year start Leave year end

End date should be the last day of the leave year.

2) Full‑time weekly hours

Full‑time days per week

3) Full‑time annual leave (contractual) – days

Enter contractual leave days (commonly excluding bank holidays if handled separately).

Typical bank holidays per year – days

Bank holiday handling 4) Worker pattern

5) Employee days per week

Employee weekly hours

6) Employment start date

Employment end date (if applicable)

Leave blank if still employed.

7) Any change in working pattern during the leave year? 8) Rounding rule 9) Show statutory minimum check (5.6 weeks)?

For bank holidays set to “Only if it falls on a normal working day”, this tool uses an approximation unless you provide a bank-holiday calendar.

Results

Enter details and click Calculate.

Breakdown

Item	Value

How it’s calculated

Inputs (true cost of employee)

Annual gross salary (£)

Employer pension contribution (%)

Employer NI rate (%)

Default 15% (commonly used employer NIC rate for 2025–26).

Employer NI secondary threshold (annual £)

Employment Allowance (optional, annual £)

If eligible, this reduces employer NI. Enter 0 to ignore.

Other employer on-costs (optional, annual £)

NIC is estimated as (salary − threshold) × rate (simplified for budgeting).

Results

Click Calculate.

Breakdown

Item	Value

Inputs (statutory redundancy pay)

Date of birth

Redundancy / dismissal date

Employment start date

Normal weekly pay (£)

Weekly pay cap (£) (default)

You can override if cap changes.

Uses DOB + start/end dates to apply statutory age multipliers across each full year of service (max 20).

Results

Click Calculate.

Breakdown

Item	Value

Year-by-year weighting

Inputs (sickness cost estimator)

Annual salary (£)

Working days per week

Sick days absent

SSP weekly rate (£)

Company sick pay top-up (optional) — pay % of normal salary while off

Enter 100 for full pay, 50 for half pay, 0 for SSP only.

Results

Click Calculate.

Breakdown

Item	Value

Inputs (final pay — basic)

Termination date

Pay frequency

Annual salary (£)

Outstanding holiday to pay (hours)

Contracted weekly hours

Working days/week

Notice pay owed (weeks)

Other deductions / adjustments (£)

Positive = addition, negative = deduction.

Results

Click Calculate.

Breakdown

Item	Value

Website embedding

Host this file and link to it like any webpage, or embed via an <iframe> (if allowed):
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