Project Budget Burn Rate
A financial velocity metric calculated by dividing cumulative labor costs (from tracked time) by elapsed project duration, indicating how quickly a project is consuming its budget and enabling forecasting of budget exhaustion date, critical for early intervention when burn rate exceeds planned spending pace.
Last updated: 2026-03-20 19:58
Overview
Burn Rate measures how fast a project consumes budget over time, providing early warning when spending pace exceeds projections and enabling corrective action before budget depletion.
Calculation
Burn Rate = Total Costs Spent / Time Period
Example:
- $50,000 spent in 5 weeks
- Burn Rate = $10,000/week
Forecasting Budget Exhaustion
Runway = Remaining Budget / Burn Rate
Example:
- Total Budget: $100,000
- Spent: $50,000
- Remaining: $50,000
- Burn Rate: $10,000/week
- Runway: 5 weeks until budget exhausted
Planned vs. Actual Burn
Planned Burn Rate:
- Total Budget / Planned Duration
- Example: $100,000 / 20 weeks = $5,000/week
Comparison:
- Actual: $10,000/week
- Planned: $5,000/week
- 2× over budget pace → Red flag!
Warning Thresholds
Green: Actual burn ≤ Planned burn Yellow: Actual burn 1.1-1.25× planned Red: Actual burn > 1.25× planned
Root Causes of High Burn
- Scope creep
- Inefficient resource allocation
- Underestimated complexity
- Quality issues/rework
- Excessive meeting time
- Wrong skill levels assigned
Corrective Actions
Reduce Burn Rate:
- Reallocate to junior resources
- Eliminate scope creep
- Improve processes
- Reduce meetings
Extend Budget:
- Request change order
- Renegotiate scope
- Add funding
Time Tracking Integration
Burn rate requires:
- Accurate daily time tracking
- Proper project allocation
- Fully loaded labor rates
- Real-time cost calculation
- Regular budget updates
Pricing
N/A - This is a project management metric.
Related Items
Actual vs Planned Time Tracking (Sunsama)
Sunsama's feature that tracks how long tasks actually take versus initial time estimates, helping users improve planning accuracy over time by learning from the gap between expectations and reality.
Earned Value Management (EVM) Time Tracking
A project management methodology that integrates time tracking with budget and schedule data to measure project performance by comparing planned value, earned value, and actual costs, providing early warning indicators of schedule or cost overruns through metrics like Schedule Performance Index (SPI) and Cost Performance Index (CPI).
Fully Loaded Labor Rates
Comprehensive hourly cost rates that include not just base salary but also benefits, payroll taxes, overhead allocation, and other employment costs, essential for accurate project profitability analysis and ensuring billing rates cover true labor expenses.
Labor Burden Rate
The multiplier or percentage added to base wages to account for benefits, taxes, insurance, and overhead costs when calculating true employment expenses, typically ranging from 1.25x to 2.0x base salary, essential for accurate project costing, profitability analysis, and ensuring billing rates cover full labor costs.