Freelance and small-studio product designers bill startups, agencies, and in-house product teams for designing digital products such as web apps, mobile apps, and SaaS dashboards. Invoices typically cover discovery and research, UX flows, wireframes, UI design, prototypes, design system work, and developer handoff.
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Invoice_1001_Client_2026-10-14.pdf
Most product designers price in one of three ways: hourly, a day rate, or a fixed fee per project phase. Hourly and day rates suit open-ended or embedded work with a product team, where scope shifts week to week. Fixed fees work for defined deliverables such as a design sprint, an MVP design, or a design system starter kit, and are usually split by phase (research, UX, UI, handoff). Longer engagements are often billed as a monthly retainer for a set number of days or hours per month. Charge separately for revisions beyond the agreed rounds, user testing participant incentives, stock assets, font licenses, and paid plugins or tools passed through to the client. Rates vary with experience, specialty (fintech, healthcare, and enterprise tend to pay more), and whether the client is a startup or an established company.
| Service | Priced | Typical range |
|---|---|---|
| Product design (hourly, mid-level freelancer) | per hour | $75-150 |
| Senior or specialist product designer | per hour | $125-225 |
| Day rate for embedded team work | per day | $600-1,400 |
| UX research and user interviews (planning, sessions, synthesis) | flat fee | $2,500-8,000 |
| Design sprint facilitation (5 days) | flat fee | $6,000-15,000 |
| MVP app or web app design (flows, wireframes, UI, prototype) | flat fee | $8,000-30,000 |
| Design system setup (components, tokens, documentation) | flat fee | $5,000-20,000 |
| Monthly design retainer | per month | $3,000-10,000 |
Typical US ranges. Rates vary by region, experience, and job size.
| Description | Qty | Rate | Amount |
|---|---|---|---|
| UX flows and wireframes - onboarding and dashboard (Phase 2) | 28 hours | $110.00 | $3,080.00 |
| High-fidelity UI design - 24 screens, desktop and mobile | 34 hours | $110.00 | $3,740.00 |
| Clickable prototype for user testing (Figma) | 8 hours | $110.00 | $880.00 |
| Usability test sessions - moderation and summary report (5 participants) | 1 flat fee | $1,200.00 | $1,200.00 |
| Participant incentives (5 x $50 gift cards, at cost) | 5 each | $50.00 | $250.00 |
| Total | $9,150.00 | ||
Notes: Phase 2 of 3 per the agreement dated March 4. Payment due within 15 days of invoice date. Late balances accrue 1.5% interest per month. Includes two rounds of revisions on UI; additional rounds billed at $110 per hour. Design files transfer to client upon final payment.
Ties the invoice to the agreed scope so the client's finance team can match it to the contract or statement of work.
Shows what the client is paying for, since design work is less visible than physical goods.
Clients often ask for backup on hourly work, and a short log prevents back-and-forth.
Documents when extra billing is justified and reminds the client of the limits in your agreement.
Lets you recover expenses at cost or with an agreed markup, with receipts available if requested.
Larger companies often will not process an invoice without a PO or cost center reference.
Makes clear when ownership of final files passes, which is commonly tied to payment in full.
A deposit of 25-50% before work starts is common for fixed-fee projects, with the remainder tied to milestones such as end of research, approved wireframes, and final handoff. Hourly and retainer work is usually invoiced monthly or biweekly, with retainers billed in advance at the start of the month. Net 15 or net 30 is typical, though larger companies may insist on net 45 or net 60, so confirm before signing. Late fees of 1-1.5% per month are common if stated in your contract. Clients usually pay by ACH, wire, or card; card payments may carry a processing fee you can pass on if your agreement allows it.
State in your contract that source files and full usage rights transfer once the invoice is paid. Share view-only prototypes until then so you keep leverage on the last milestone.
Define the number of revision rounds per phase and bill extra rounds at your hourly rate. Without a cap, feedback cycles can double the real hours on a fixed-fee project.
Invoice at the close of research, UX, UI, and handoff. A single invoice at the end of a three-month project leaves you carrying the risk if the client stalls.
Workshops, review calls, and async feedback rounds take real hours. Either include them in your fixed fee with a stated limit or log them on time-based invoices.
When a client adds a flow or a platform, send a short change note with the added cost before starting. Then reference it on the next invoice.
Use hourly or day rates when scope is unclear or you are embedded with a team. Use fixed fees when deliverables are well defined, such as an MVP design or design system. Many designers use fixed fees per phase with hourly billing for anything outside scope.
Yes, and it is common to. Discovery often determines the scope of everything that follows, so many designers bill it as its own phase or paid workshop before quoting the rest of the project.
List them as a separate line item at cost, with the number of participants and incentive amount. Keep receipts. Some designers add a small handling fee, which should be agreed in advance.
Refer to the revision limit in your agreement and send a change estimate for the extra work. Bill it as a separate line item on the next invoice, labeled as out-of-scope revisions.
It depends on your state. Some states tax digital or professional services and many do not. Check your state's rules or ask an accountant, and show any tax collected as its own line on the invoice.
Send a Product Designer estimate for approval, then turn it into an invoice when the work is done.
Product Designer estimate template