Utility

Agency Capacity Planner

Match your client load to team headcount before you over-commit.

Saying yes to one client too many is how delivery quality slips and good people burn out. This free agency capacity planner compares the hours your active clients demand against what your team can realistically deliver, then shows your headroom, your utilization, and a clear signal for when it is time to hire, before delivery starts to crack.

How to calculate your agency's delivery capacity

Capacity is your team size multiplied by the realistic billable hours each person can deliver in a month. Five people at 120 billable hours each is 600 hours of capacity. Compare that to total client demand, the sum of delivery hours across every active account, and the difference is your headroom. Positive headroom means room to grow; negative means you are already over capacity and something has to give.

The number that makes or breaks this is billable hours per person. Do not use contracted hours. A full-time person rarely delivers 160 billable hours a month once you remove meetings, admin, ramp time, and time off. Using a realistic figure, often 100 to 130 hours, is what keeps the plan honest and the hire signal trustworthy.

When should an agency hire its next person?

The mistake is hiring reactively, after the team is already drowning and quality has already slipped. A better trigger is utilization: when sustained utilization crosses about 85 percent, you are running with no slack for sick days, surprises, or the quality polish clients are paying for. That is the moment to start recruiting, because hiring takes weeks and the new person needs time to ramp before they are productive.

This planner flags near capacity at 85 percent and over capacity at 100 percent precisely so you act on the leading signal rather than the lagging one. If the tool says you are near capacity, treat it as a prompt to open the role now, while there is still headroom to onboard someone calmly rather than throwing them at a fire.

Frequently Asked Questions

How many billable hours should I assume per person?▼

Use a realistic figure, typically 100 to 130 billable hours per month for a full-time delivery role, not the full contracted hours. People lose time to meetings, admin, ramp, and time off, so planning on 160 hours overstates capacity and leads to overcommitment.

When should an agency hire its next team member?▼

Start recruiting when sustained utilization crosses about 85 percent, not after the team is already overloaded. Hiring and ramp take weeks, so acting on the near-capacity signal gives you time to onboard someone before quality and deadlines suffer.

What utilization level is too high?▼

Consistently above 85 percent is a warning sign. There is no slack left for sick days, surprises, or quality work, and burnout and turnover tend to follow. Brief spikes are fine, but sustained high utilization means you need more capacity.

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