Short answer: Hourly billing is familiar but rewards effort, not results, and clients increasingly push back on it. Fixed fees and retainers give clients certainty and can be more profitable for efficient firms, as long as scope is tightly defined. Value-based pricing earns the most when your work drives measurable outcomes. Most firms use a mix, chosen by service.
Comparing the models
| Model | Best for | Risk |
|---|---|---|
| Hourly | Unpredictable or open-ended work | Clients cap or question hours; efficiency is not rewarded |
| Fixed fee | Well-defined, repeatable work | Overruns come out of your margin |
| Retainer | Ongoing advisory or support | Scope drift without clear limits |
| Value-based | Work with measurable financial outcomes | Requires confidence and data to justify |
How to price a fixed fee profitably
- Use historical time data to estimate effort.
- Define scope, deliverables and assumptions in writing.
- Add a margin for risk and complexity.
- Set a change-order process for work outside scope.
- Review actual effort against the fee after every engagement.
Signs your pricing needs work
- Realization is falling
- Fixed-fee engagements regularly overrun
- You win almost every proposal
- Rates have not changed in years while salaries have
How Capstone CFO helps
- Analyze profitability by service, client and pricing model
- Use time data to set fixed fees and retainers that hold margin
- Design rate increases and communicate them to clients
- Build proposal templates with scope and change-order language
- Track pricing results in monthly reporting
Frequently asked questions
Should we stop billing hourly?
Not necessarily. Hourly works for unpredictable work; fixed fees and retainers work better for defined, repeatable services.
How often should rates increase?
Most firms review rates annually, aligned with salary increases.
How do we introduce value pricing?
Start with services where outcomes are measurable and you have data showing results.
Revisiting your pricing? See how we support professional services firms or book a call with our CFO team.