Agency project estimating: roles, reviews and cash

Build costs around roles and deliverables

Consider an illustrative engagement with 80 design hours at a loaded cost of 50, 120 development hours at 70, and 40 project-management and review hours at 60. Labor cost is 4,000 + 8,400 + 2,400 = 14,800. Add 1,200 of direct expenses and 2,000 of allocated overhead to reach 18,000. These are example inputs, not industry rate benchmarks.

Before using that total, check whether the loaded role rates already include the overhead allowance. If they do, adding another 2,000 counts it twice. The cost-rate guide explains why internal cost rates belong in the model and selling prices belong in a separate step.

Put revisions in the scope, not in a vague buffer

Define the deliverables, decision maker, included rounds and what counts as a new direction. Identify rework that is ordinary task uncertainty and events that genuinely change scope. An extra 40 hours at a 75 cost rate plus 500 of expenses adds 3,500 cost. The scope-change calculator shows the fee needed and the margin lost if the agency absorbs it.

Check the constrained role

A team may have enough total hours while one reviewer or senior developer is already committed. Run the capacity check for the bottleneck separately. Then connect work that must wait for approvals or prior deliverables. The software estimating workflow gives an example of why available hours do not imply parallel execution.

Price the work and test the discount

At a deterministic 18,000 cost, a 24,000 quote gives a 25% gross margin. Reducing the price by 10% to 21,600 leaves 3,600 profit and a 16.7% margin. The agency gives up 40% of the original 6,000 profit. Use the discount-impact calculator with your own price floor, then compare a scope reduction rather than assuming the same delivery plan still works.

Test when the cash arrives

The 24,000 quote can still require funding. With four equal 6,000 collections and phase costs of 7,200, 7,200 and 3,600, the cash balance reaches −2,400 if starting cash is zero and each phase is paid before the next collection. The cash-flow calculator exposes that sequence. Delayed collections can make the gap larger; an issued invoice is not cash received.

Keep one reviewable bid record

Record the scope version, cost basis, capacity assumption, price, margin, selected confidence and payment sequence. Assign an owner to each unresolved assumption. Use the bid-review checklist before committing and the proposal checklist to communicate the chosen terms. BidVariance Business adds a local scenario library and bid review record; see the license comparison for the actual scope of those features.

These guides were prepared with AI assistance. Examples are illustrative calculations checked against the calculator code, not client case studies or market benchmarks.