Freelance Project Cost Calculator
Calculate profitable fixed-price project quotes for freelance clients, factoring in estimated hours, revision buffers, direct expenses, rush fees, and tax reserves.
Fixed-Price Project Scoping & Markup
Total Client Quote
$4,150
Includes 10% rush fee
Net Project Take-Home
$2,880
After expenses & taxes
Base Labor Cost
$3,150
35 hrs @ $90/hr
Tax Reserve (28%)
$1,120
Hold in escrow
Step-by-Step Worked Example
Calculation Steps:
How to Use This Calculator
- 1Enter estimated project delivery hours.
- 2Enter your standard hourly rate.
- 3Specify revision and scope creep buffer percentage (recommended: 15% to 20%).
- 4Add pass-through direct client expenses (plugins, stock assets, server costs).
- 5Add rush fee percentage if client requested an expedited turnaround deadline.
- 6Review total proposal quote and your net post-tax take-home earnings.
Assumptions & Limitations
- Estimates are based on standard national averages and current prevailing construction materials and contractor rates.
- Actual trade bids may fluctuate according to local building code requirements, permit fees, and site topography.
- Always obtain multiple written bids from licensed, bonded, and insured contractors before commencing work.
Frequently Asked Questions
Why should freelancers charge fixed project fees instead of hourly billing?
Fixed project pricing decouples your income from the clock, rewarding efficiency and expertise. As you work faster and build reusable assets, your effective hourly rate increases rather than decreases.
How should scope creep be handled in fixed-fee quotes?
Always define the exact deliverables and number of revision rounds in your client contract. Any requests beyond that scope are billed separately at your hourly change-order rate.
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