Profitability

Cost Optimisation Without Cutting the Wrong Things

7 min read

Last reviewed: 1 January 2026

The principle

Cost cutting in a panic damages growth. Cost optimisation is a repeatable discipline applied annually.

The 5-bucket review

1. Software subscriptions

  • List every recurring SaaS payment
  • For each: who uses it, what would break without it, when does it renew
  • Typical savings: 15–30% by deduplication, downgrading tiers and renegotiating at renewal

2. Professional services

  • Bundle separate suppliers (one accountant + lawyer + payroll = better terms than three)
  • Move retainer work to fixed-fee where scope is predictable
  • Audit time-and-materials suppliers for scope creep

3. Premises and utilities

  • Renegotiate the energy contract every 12 months — switching is usually 10–20%
  • Sublet or downsize unused space
  • Review business rates — many SMEs overpay

4. Payment processing

  • Aim for under 2% on card processing for B2C, under 1% for B2B via direct debit (GoCardless)
  • Audit Stripe/SumUp/Adyen statements — international and "premium card" fees often hide 0.5–1.5% extras

5. Headcount and contractors

  • Track contractor spend by month — many SMEs find recurring contractor cost has quietly exceeded full-time hires
  • Convert long-running contractors to employees where IR35 demands it
  • Avoid panic redundancies — they're rarely a sustained saving

What not to cut

  • Marketing during a slow period (it's exactly when CAC is lowest)
  • Customer support (churn costs more than the savings)
  • Training and tools your top performers depend on
  • Pension contributions (recovering them later is painful)

Annual cadence

Run a 5-bucket review every September/October ahead of the new financial year. Document the decisions and review the savings in the following month's KPI pack.

Premium clients get a cost-base review built into their annual planning cycle.

Ask Ernie AI

Got a follow-up on profitability? Ask Ernie — your UK Business Finance Assistant.

Ask Ernie AI

Need professional support?

Book a consultation with Ernest & Co — first call is free.

Book a free consultation