Payroll Cost Analysis: Understanding Your Largest Expense

For most service businesses and many product businesses, payroll is the single largest cost — often 30–60% of revenue. Yet many small business owners only look at total payroll as a lump sum on their P&L, without understanding the breakdown.

Breaking down payroll by function, role, and time reveals:

• Which parts of the business are over or under-staffed relative to output
• Where payroll costs are growing faster than revenue
• Which roles have the highest total cost (salary + NI + pension + benefits)
• Whether your payroll mix (permanent vs. contractor vs. casual) is optimised for your revenue model

Total employment cost (TEC) is the right measure — not just gross salary:

• Gross salary / wages — the base
• Employer National Insurance — currently 13.8% of earnings above the secondary threshold
• Employer pension contributions — minimum 3% under auto-enrolment, often higher
• Benefits in kind — health insurance, gym membership, company car (include at cost)
• Holiday pay accrual — for part-time and casual workers especially

For accurate analysis, pull payroll data from your payroll software (Xero Payroll, QuickBooks Payroll, Sage, Gusto) via AskBiz or CSV export.

Break payroll into functional buckets:

• Production / fulfilment — staff directly involved in making or delivering your product/service. This is part of COGS — separate from below.
• Sales and marketing — sales team, marketing staff
• Operations / admin — warehouse, office admin, HR
• Management — directors, senior leadership

Ask AskBiz: *'What percentage of total payroll is attributable to each function?'* and *'How has the ratio of production staff cost to sales staff cost changed over the last 12 months?'*

AskBiz can ingest payroll data via:

1. QuickBooks or Xero integration — if you use their payroll modules, payroll costs flow automatically into your P&L data in AskBiz

2. CSV upload — export your monthly payroll summary and upload to /sources → CSV → Payroll Data

3. Direct entry — enter monthly payroll costs as a manual data point in your dashboard

For the richest analysis (breakdown by employee, role, department), a CSV upload with individual-level data is most useful. For basic payroll-to-revenue ratio tracking, the accounting integration is sufficient.

Once payroll is in AskBiz, ask:

• *'What is my revenue per full-time equivalent (FTE) this quarter?'*
• *'How has my payroll as a % of revenue changed over the last 6 months?'*
• *'Which months had the highest payroll cost and why?'*

Revenue per FTE is your primary productivity metric. If it is declining while headcount grows, you are hiring ahead of revenue — which may be intentional (investing in capacity) or a warning sign.