Intermediate

Service line costing: utilization, billable rates, margins

Builds a service line costing model using utilization and blended rates to compute margins. Useful for professional services and agency businesses.

Build a service line costing model for {service_business_name}.

Inputs:
- Roles and billable rates: {roles_rates}
- Utilization assumptions: {utilization}
- Delivery vs SG&A costs: {cost_structure}
- Project mix and hours: {project_mix_hours}
- Period: {period}

Output:
1) Costing model formulas: revenue, labor cost, gross margin by service line.
2) Utilization sensitivity (±{util_sensitivity}%).
3) Recommended KPIs (billable %, realization, contribution margin).
4) Commentary template for leadership.

Keep it implementable in a spreadsheet.

Related Prompts

Management Accounting & FP&A

Advanced

Unit economics for subscription/business model (CAC, LTV, payback)

Creates a unit economics model with CAC, LTV, gross margin, and payback, including sensitivity analysis. Useful for growth planning and investor discussions.

GPT-5.2 Thinking; GPT-4.1; o3-mini

Management Accounting & FP&A

Beginner

Metric definition library (single source of truth) template

Creates a standardized metric dictionary to prevent KPI drift across teams. Useful for scaling reporting and ensuring consistent definitions.

GPT-5.2 Thinking; GPT-4.1; o3-mini

Management Accounting & FP&A

Beginner

Budget kickoff pack: timeline, owners, templates, instructions

Generates a budget kickoff pack with roles, deadlines, template instructions, and FAQs. Useful for FP&A leaders coordinating cross-functional budgeting.

GPT-5.2 Thinking; GPT-4.1; o3-mini