Web Developer Invoice Template
A web developer invoice bills hr, lists labour, services and fees on separate lines and states the terms (Net 15, billed every two weeks). This template is pre-filled for build a custom appointment booking feature with online payment for an existing physiotherapy clinic website and deploy it to production: 8 lines totalling $7,290.00 before tax. Edit it and download the PDF.
Pre-filled for a web developer: build a custom appointment booking feature with online payment for an existing physiotherapy clinic website and deploy it to production. Example prices: replace them with your own.
From
Lakeside Web Development
890 Market Street
Madison, WI 53703
billing@example.com
(615) 555-0190
Invoice
Bill to
Robin Okafor
311 Pine Road
Fairview, OR 97024
client@example.com
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Technical specification and API reviewBooking flow, data model, payment provider documentation | 6 hr | $110.00 | $660.00 |
| Front-end booking form and calendar viewResponsive, keyboard accessible, inline validation | 22 hr | $110.00 | $2,420.00 |
| Back-end endpoints and database tablesAppointments, therapist availability, reminder queue | 18 hr | $110.00 | $1,980.00 |
| Payment provider integrationCheckout, webhooks and refunds, built in test mode first | 10 hr | $110.00 | $1,100.00 |
| Automated tests and staging review | 8 hr | $95.00 | $760.00 |
| Production deploymentDatabase migration, rollback plan, error alerts | 1 project | $350.00 | $350.00 |
| Transactional email service, first monthBilled at cost, then moved to the clinic's own account | 1 month | $20.00 | $20.00 |
| Post-launch bug-fix window14 days, fixes to the delivered scope only | 1 project | $0.00 | $0.00 |
- Subtotal
- $7,290.00
- Balance due
- $7,290.00
Notes
Thank you for choosing Lakeside Web Development. Terms: Net 15, billed every two weeks.
Payment details
Bank transfer or card. Please quote the invoice number.
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Web Developer invoice at a glance
| Typical job | Build a custom appointment booking feature with online payment for an existing physiotherapy clinic website and deploy it to production |
|---|---|
| Main billing unit | hr |
| Usual payment terms | Net 15, billed every two weeks |
| Deposit practice | Developers commonly invoice the first two weeks of estimated hours, or 25-50 percent of a fixed price, before starting work for a new client. |
| Sample lines | 8 lines, $7,290.00 before tax |
| Largest line | Front-end booking form and calendar view: $2,420.00 (33%) |
| Labour hours billed | 64 h, $6,920.00 |
| Trade-specific fields | Project name, Repository, Staging URL, Billing period, Ticket or pull request refs |
Sample web developer invoice line items
Build a custom appointment booking feature with online payment for an existing physiotherapy clinic website and deploy it to production: 8 lines adding up to $7,290.00, split into labour $6,920.00 (95%), services $350.00 (5%) and fees $20.00 (0%).
| Item | Qty | Rate | Amount |
|---|---|---|---|
| Technical specification and API review (Booking flow, data model, payment provider documentation) | 6 hr | $110.00 | $660.00 |
| Front-end booking form and calendar view (Responsive, keyboard accessible, inline validation) | 22 hr | $110.00 | $2,420.00 |
| Back-end endpoints and database tables (Appointments, therapist availability, reminder queue) | 18 hr | $110.00 | $1,980.00 |
| Payment provider integration (Checkout, webhooks and refunds, built in test mode first) | 10 hr | $110.00 | $1,100.00 |
| Automated tests and staging review | 8 hr | $95.00 | $760.00 |
| Production deployment (Database migration, rollback plan, error alerts) | 1 project | $350.00 | $350.00 |
| Transactional email service, first month (Billed at cost, then moved to the clinic's own account) | 1 month | $20.00 | $20.00 |
| Post-launch bug-fix window (14 days, fixes to the delivered scope only) | 1 project | $0.00 | $0.00 |
| Subtotal | $7,290.00 | ||
| Total before tax | $7,290.00 |
What a web developer invoice should include
- Your web development business name, address, phone and email, plus a tax ID if you are registered
- The customer's name and billing address (Robin Okafor in the sample)
- A unique invoice number (INV-4680) and the issue date
- Payment terms and a due date: Net 15, billed every two weeks
- Project name: for example Build a custom appointment booking feature with online payment for an existing physiotherapy clinic website and deploy it to production
- Repository: for example See notes
- Staging URL: for example See notes
- Billing period: for example 24 November 2026
- Line items in hr or per item, each with quantity, rate and amount
- How to pay you: bank details, card link or cheque payee
How web developers bill
Web developers often bill hourly against a written estimate for custom builds and integrations, or quote a fixed price per feature when the specification is tight.
Web developers commonly use "Net 15, billed every two weeks", so payment is due 15 days after the invoice date. Developers commonly invoice the first two weeks of estimated hours, or 25-50 percent of a fixed price, before starting work for a new client.
U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2024: median hourly wage of Web Developers $43.72 (employees, not contractor rates). The sample's $110.00 per hour for "Technical specification and API review" is 2.5 times that employee figure; a business rate also has to cover insurance, tools, travel, unbilled admin time and profit.
Web Developer invoicing tips
- Reference the ticket or pull request numbers behind each block of hours, so the client's technical lead can trace every billed line to merged code.
- Put hosting, email delivery and API usage on separate at-cost lines, or move them to the client's own accounts, because those services keep charging after your engagement ends.
- Show the post-launch bug-fix window as a zero-priced line with its end date, which makes it plain that fixes requested after that date are new billable work.
- When you bill against an estimate, print the estimated hours, hours used to date and hours remaining on every invoice, so an overrun is never a surprise on the last one.
Web Developer billing disputes to head off
- Clients sometimes relabel new feature requests as bugs to avoid paying for them; defining a bug on the invoice as delivered scope not working as specified draws the line.
- Ownership of the code becomes a fight when the final invoice is unpaid; stating that code and repository access transfer on payment in full settles who owns what.
Work a web developer can bill for
Core tasks of Web Developers (O*NET 15-1254.00, O*NET 29.x task statements, CC BY 4.0). Each can become a line on the invoice.
- Design, build, or maintain Web sites, using authoring or scripting languages, content creation tools, management tools, and digital media.
- Perform or direct Web site updates.
- Confer with management or development teams to prioritize needs, resolve conflicts, develop content criteria, or choose solutions.
- Back up files from Web sites to local directories for instant recovery in case of problems.
- Evaluate code to ensure that it is valid, is properly structured, meets industry standards, and is compatible with browsers, devices, or operating systems.
- Maintain understanding of current Web technologies or programming practices through continuing education, reading, or participation in professional conferences, workshops, or groups.
How to make a web developer invoice
-
Add both parties
Enter Lakeside Web Development (your business) and the customer, Robin Okafor, then project name.
-
Number and terms
Give it a unique number such as INV-4680 and set the terms to Net 15, billed every two weeks.
-
List the work
One line per item: the sample runs from "Technical specification and API review" (6 hr) to "Post-launch bug-fix window" (1 project).
-
Check the total
The 8 lines come to $7,290.00; add sales tax only if your state taxes web development work.
-
Download and send
Download the PDF or print it, then keep a copy with the web development work records.
Frequently asked questions
How do I make a web developer invoice?
Add your web development business details, the customer, project name, repository, staging url and billing period, then one line per item with quantity and rate. The template above is pre-filled with 8 lines for build a custom appointment booking feature with online payment for an existing physiotherapy clinic website and deploy it to production totalling $7,290.00; change the prices and download the PDF.
How do web developers charge?
Mostly hr. Web developers often bill hourly against a written estimate for custom builds and integrations, or quote a fixed price per feature when the specification is tight.
When should a web developer invoice be paid?
Net 15, billed every two weeks is the usual arrangement. Developers commonly invoice the first two weeks of estimated hours, or 25-50 percent of a fixed price, before starting work for a new client. Put the terms and the due date on the invoice so there is no doubt.
How much do web developers earn per hour?
U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2024: median hourly wage of Web Developers $43.72 (employees, not contractor rates). Self-employed rates are usually higher because they cover overhead and unbilled time.