Development hours
Per hour
Feature work, bug fixes and technical tasks billed by time spent.
Sprints · Retainers · Support
Developer Invoice Generator
Create Professional Developer Invoices
Software work is billed in shapes that clients do not always recognise: sprints, hours, fixed-scope builds, support retainers and the infrastructure that runs underneath.
The generator opens with development line items in place — sprint work, review and deployment, and a maintenance retainer — ready to edit and download as a PDF.
Loaded with developer line items you can edit, rename or remove.
What is a developer invoice?
A developer's invoice bills for engineering time and the deliverables it produced: features shipped, systems integrated, bugs resolved or ongoing maintenance provided. It often covers a billing period rather than a single job, because software work continues across months.
The challenge is legibility. A client sees a working product, not the hours behind it, so invoices that name the features, tickets or sprint periods are approved far faster than invoices that state a number of hours and nothing else.
How to invoice as a developer
- Step 1
Decide the billing unit
Sprint, hourly, fixed scope or retainer — matching whatever the engagement agreed.
- Step 2
Name the work in product terms
Features, integrations or ticket references rather than internal technical shorthand.
- Step 3
Separate build from support
New development, maintenance and incident response are different budgets on the client's side.
- Step 4
Include review, deployment and meetings
Hours spent shipping and coordinating are chargeable when the agreement says so — list them, don't bury them.
- Step 5
Pass through services at cost
Hosting, APIs and licences as separate expense lines, ideally owned by the client's own accounts.
- Step 6
Set terms and send with a summary
A one-paragraph summary of what shipped, plus the PDF, makes approval a formality.
What to include on a developer invoice
- Your name or company and contact details
- Client company, the approving contact and billing email
- Invoice number, issue date and the billing period or sprint
- Development hours or sprint fee with the work described
- Fixed-scope deliverables named as specified
- Support or maintenance retainer with what it covers
- Third-party services and licences at cost
- Payment terms, bank details and any purchase order reference
Common charges for developers
Sprint or iteration
Per sprint
A fixed period of capacity, usually one or two weeks, at an agreed rate.
Fixed-scope build
Project fee
A defined deliverable specified up front and invoiced on completion or by stage.
Code review and deployment
Per hour
Review, release management and deployment support around the build itself.
Maintenance retainer
Per month
Ongoing updates, monitoring and a defined response commitment.
Hosting and third-party services
At cost
Infrastructure, APIs and licences paid on the client's behalf.
Example developer invoice
A month of sprint work with deployment support, a maintenance retainer and a passed-through service cost.
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Sprint work — checkout feature build (hrs) | 40 | 110.00 | 4,400.00 |
| Code review and deployment support (hrs) | 4 | 110.00 | 440.00 |
| Monthly maintenance retainer — April | 1 | 500.00 | 500.00 |
| Hosting and error monitoring (expense, at cost) | 1 | 128.00 | 128.00 |
| Subtotal | 5,468.00 | ||
| Tax (10%) | 546.80 | ||
| Total due — Net 30 | 6,014.80 | ||
Tips for getting invoices paid
Invoice on a fixed cycle
Monthly or per sprint, on the same date. Predictable invoices get budgeted for; irregular ones get queried.
Quote the purchase order number
Company clients often cannot pay without it. Ask for the PO before the work starts, not after the invoice bounces.
Summarise what shipped
A short list of delivered features turns an approval into a two-minute read for a non-technical manager.
Bill discovery work
Scoping, estimating and architecture are the highest-value hours you spend. Charge for them.
Common invoice mistakes for developers
Hours with no context
'40 hours development' invites scrutiny. Name the features or tickets those hours produced.
Free overruns
Silently absorbing extra hours on a fixed-price build rewards under-scoping and erodes your rate.
Paying for the client's infrastructure
Services on your card become an unbilled subscription. Pass them through or transfer the accounts.
No boundary on support
A retainer with unlimited scope becomes an unlimited obligation. Define included hours and response times.
Frequently asked questions
Should I invoice by sprint or by hour?
Sprints suit ongoing product work with a predictable cadence, hours suit ad hoc tasks, and a fixed price suits a clearly specified build. All three can appear on the same invoice when a month contained all three.
How do I invoice a support or maintenance retainer?
One line naming the month and what the retainer covers — for example response times, security updates and a block of included hours. Work beyond the included hours goes on a separate line at your standard rate.
Can I bill for code review, deployment or meetings?
Yes, when they are part of the engagement. These hours are real and often invisible to the client, so name them explicitly rather than absorbing them into feature work.
How do I pass through hosting or third-party services?
List each service as its own expense line at cost. Where possible, have the client own the accounts directly, so a cancelled engagement does not leave you paying their infrastructure bill.
What about bug fixes after delivery?
Distinguish warranty fixes covered by the agreement from new work. Fixes to what you built are usually included for an agreed period; changes to requirements are chargeable and belong on their own line.
How should I bill a discovery or scoping phase?
As a paid piece of work with its own deliverable, such as a technical specification or estimate. It protects the time spent scoping and gives the client something of value even if the build never starts.
Related tools and reading
Create your developer invoice
Edit the line items, add your details and download a clean PDF. Free, no account and no watermark.