Free software development invoice generator
Bill sprints, milestones or tracked hours against a signed SOW, and pass through infrastructure and licences at cost.
Build your software development invoice
Prefilled with a two-sprint milestone invoice. Swap in your scope, rates and references, then download.
| Description | Qty | Rate | Amount |
|---|
What is a software development invoice?
A software development invoice has to survive review by someone who did not write the code. Referencing the SOW clause, the sprint, or the ticket range makes the work verifiable without technical judgement, which is what gets it through procurement.
Three billing shapes dominate: hourly with a cap, per-sprint at a fixed team rate, and per-milestone against acceptance criteria. Each is legitimate, but mixing them silently on one invoice is how disputes start. Label which applies to each line.
Infrastructure, third-party licences and API usage should be passed through at cost as separate lines. Absorbing them into a rate hides real spend from the client and quietly erodes your margin as their usage grows.
What to include
Everything below is already in the generator above — this is what each part is for.
SOW or contract reference
The agreement and clause the work was performed under.
Sprint, milestone or period
What unit of work this invoice covers, with dates.
Deliverables completed
Features shipped or milestones accepted, in terms the client recognises.
Hours and rates by role
Where hourly, hours by role — senior, mid, QA — at their own rates.
Pass-through costs
Cloud hosting, licences, API usage and third-party services at cost.
Ticket or PR references
Issue ranges or release tags so the work can be traced.
Three steps to a finished PDF
Reference the agreement
Client, SOW number, and the sprint, milestone or billing period covered.
Bill the work unit
Sprint or milestone fees, or hours by role, then pass-through costs at cost.
Download and send
Send the PDF at sprint close or milestone acceptance, with references attached.
Billing models, scope and getting paid on time
Pick one model per line and label it
Fixed-price milestones give the client certainty and put estimation risk on you. Per-sprint billing shares that risk and suits evolving scope. Hourly with a cap suits maintenance and unclear work. Any of them works; what fails is an invoice where the client cannot tell which one they are being charged under.
Make change requests their own lines
- Anything outside the SOW goes on a numbered change request, approved before the work starts.
- Bill approved change requests as separate lines that cite the approval date.
- Never quietly absorb scope — it is the fastest route to an unprofitable project and a bad relationship.
Bill on a rhythm and hold the terms
Fortnightly or monthly invoicing, net 15 to net 30, with late interest stated and a clause allowing you to pause work on overdue accounts. Development is expensive to keep staffed while waiting for payment, and the pause clause — used sparingly — is what makes the terms real rather than decorative.
Three mistakes that delay payment
No SOW or ticket reference
Procurement cannot verify what it is approving, so the invoice sits.
Scope creep billed as normal hours
Unapproved extra work looks like an overrun instead of an addition.
Infra absorbed into the rate
Cloud spend grows with the client's usage and eats your margin invisibly.