IT Invoice Templates for Support, Development and Repair Work

IT work gets priced in very different ways. A support contract might charge a monthly fee for each device you look after, a development team might bill a sprint's hours by role, a website build might be paid in milestones, and a repair shop bills parts and bench time for one machine. Start from the way your agreement prices the work, then pick the template below that is laid out for it.

Every template here comes as three files: a PDF blank form to fill in, and a DOCX and an XLSX file that hold the filled-in sample described under it. The sample figures are invented and carry no currency symbol.

Support contracts and consulting: IT consulting

The IT consulting invoice template combines four charge types on one invoice: a fee for each device you manage that month, project work paid by milestone, consulting time by the hour, and licenses you buy for the client and rebill at what they cost you.

In its November sample, the client is an architecture firm with 12 devices, charged 45.00 each for "Monitoring, patching and help desk" (540.00). Milestone 2 of a network refresh is 1,800.00 and milestone 3 is 1,200.00. Consulting comes to 6.5 hours at 125.00: 500.00 for a security review and 312.50 for on-site printer and VPN setup. Together those make 4,352.50 before tax. Below the tax line, two licenses are rebilled at cost, 420.00 for the firewall subscription and 60.00 for backup on each device, adding 480.00, so the client owes 4,832.50.

PDF blank form · DOCX with the sample · XLSX with the sample

Ticket-based IT support

If you bill support requests one ticket at a time rather than a fixed fee per device, that's a different task from a consulting engagement. Start from the separate IT support invoice template page instead.

Development sprints: software development

The software development invoice template charges for a sprint by role, with a separate rate for each role, and adds any fixed-fee milestone the client has signed off.

The sample is Sprint 14 for a logistics client's scheduling platform. The senior developer's 48 hours at 125.00 come to 6,000.00; the developer's 60 at 95.00 to 5,700.00; QA's 20 at 80.00 to 1,600.00. With the accepted Milestone 3 at 4,500.00, the work totals 17,800.00. Third-party costs for staging hosting, mapping calls and error-monitoring seats are rebilled at cost, 528.65, after the tax line, bringing the total owed to 18,328.65.

PDF blank form · DOCX with the sample · XLSX with the sample

Website projects: web development or web design

The web development invoice template is for building and launching a site. Its sample charges 3,000.00 when the design is approved and 4,500.00 at launch, then 950.00 for 10 extra hours at 95.00, 6 on extra page templates and 4 on moving product content, for 8,450.00 before tax. A year of hosting, the domain renewal and a plugin license are rebilled at cost (337.00), and the 1,500.00 retainer paid up front is credited, so 7,287.00 is due.

PDF blank form · DOCX with the sample · XLSX with the sample

The web design invoice template is for the design work before a build. It bills discovery, mockups and the handoff to a developer as phase fees (900.00, 2,400.00 and 700.00), shows the 2 revision rounds included at 0.00, and adds a third round at 350.00, a subtotal of 4,350.00. Stock photos and a web font license add 192.00 at cost, and the 2,000.00 deposit is credited, leaving 2,542.00 due.

PDF blank form · DOCX with the sample · XLSX with the sample

Maintenance retainers: mobile app development

The mobile app development invoice template covers a month of looking after a live app: a fixed monthly retainer with some hours built in, and any time over that billed by the hour.

Its sample retainer is 1,200.00 for October and includes 10 hours. The app took 19.5 hours that month, so the 9.5 hours over the allowance cost 110.00 each: 6 hours for an iOS 26 compatibility update (660.00) and 3.5 hours for a checkout crash fix (385.00). The subtotal is 2,245.00, and hosting, crash reporting and push notifications add 258.20 at cost, for 2,503.20 due.

PDF blank form · DOCX with the sample · XLSX with the sample

App builds: Android development

The Android development invoice template bills a new app in stages. Its sample charges two milestones (6,500.00 for core features and 4,000.00 for the release candidate), 14 hours of QA testing and bug fixes at 110.00 (1,540.00) and an app store submission (350.00), a subtotal of 12,390.00. A developer account, push notifications and crash reporting add 109.00 at cost, and a 3,000.00 retainer is credited, leaving 9,499.00 due.

PDF blank form · DOCX with the sample · XLSX with the sample

Hardware: computer repair

The computer repair invoice template is for fixing one customer's device. It has fields for the machine, its serial number and what the customer says is wrong, then bills a diagnostic fee, data recovery, parts and bench labor.

Its sample laptop repair charges a 49.00 diagnostic, 120.00 for data recovery and 59.00 for a backup drive, then the parts as their own lines (89.00 for a 1 TB solid-state drive and 32.00 for an 8 GB memory module), and 1.75 hours of bench time at 70.00 (105.00 and 17.50). The amount due is 471.50.

PDF blank form · DOCX with the sample · XLSX with the sample

• Tie it to the agreement. Fill in the reference fields your template has, such as an agreement or statement of work, a purchase order or project number, a sprint, a ticket or a device's serial number, so the client can tie the invoice back to what they signed.
• Keep units honest. Bill devices, hours, milestones, rounds or parts in the unit your agreement uses, and show the quantity and rate so the line amount can be checked.
• Separate what you pass through. Licenses, hosting and third-party services bought for the client go on their own lines at cost, below the tax line, and keep the provider's bills to back them up.
• Credit what's already paid. Show a deposit or retainer received earlier as a credit line before the amount due, as the web, design and Android samples do.
• Check the tax line. Every sample shows sales tax at 0% on a line marked "if applicable". The templates leave that decision to you: ask the tax agency for your area whether IT services, software or parts are taxed.