Construction Billing Software: Best Tools for 2026

Construction billing software is what turns finished work into an invoice the owner, GC or homeowner will actually approve and pay. Most contractors do not lose money on the work. They lose it in the gap between the work and the check: a pay app that got kicked back, a change order nobody billed, retainage that sat for a year because nobody tracked it.

I ran three restoration companies for more than 14 years. The jobs that hurt cash flow were rarely the bad jobs. They were the good jobs that got billed late, billed wrong, or billed and then forgotten. This guide covers the billing workflows that matter in construction (progress billing, AIA G702/G703, time and materials, change orders and retainage), the tools that handle each one, and what has to happen after the invoice goes out so the money actually lands. If you want the full receivables picture, our construction accounts receivable guide picks up where billing ends.

What construction billing software does

Generic invoicing tools assume you sell a thing, send a bill and get paid. Construction does not work that way. A single job might be billed monthly against a schedule of values, carry 5 to 10 percent retainage, pick up a dozen change orders and end with a separate retainage invoice months after the last crew left. Construction billing software exists to keep all of that straight.

At a minimum, good construction billing software should:

• Bill against the contract. Each invoice should know the original contract value, approved change orders, what was billed before and what is left.
• Calculate retainage automatically. Withhold it on each invoice, track the running balance by job and release it cleanly at the end.
• Turn approved change orders into billable lines. If a change order is approved but never makes it onto an invoice, you did the work for free.
• Produce the format the payer wants. AIA G702/G703 for most commercial work, a GC's custom form or portal for subs, a clear progress invoice for homeowners.
• Post to the books. Invoices should land in your accounting system with the right job and cost codes, so job costing and your aging report match what was actually billed.

The five billing workflows construction billing software has to handle

Before you look at any product, write down which of these you actually use. Most contractors use two or three. The right tool is the one that handles yours without workarounds.

Progress billing

Progress billing means invoicing a portion of the contract as the work moves forward, either by percent complete or by milestones. The trap is billing by feel. If your superintendent says the job is 60 percent done but your costs say 45 percent, someone needs to reconcile that before the invoice goes out. Overbilling feels good for a month and then shows up as a cash hole at the end of the job. Underbilling means you are financing the owner.

Look for software that builds progress invoices from the estimate or schedule of values, shows billed to date and remaining on every invoice, and blocks you from billing over a line without a deliberate override.

AIA G702 and G703 pay applications

The G702 is the Application and Certificate for Payment, the summary page. The G703 is the continuation sheet that breaks the schedule of values into line items with work completed this period, work completed before, stored materials and retainage. AIA also publishes subcontractor versions (G702S and G703S). The official forms are licensed through AIA Contract Documents, so some tools print true AIA forms through a license and others produce an "AIA-style" layout. If your owner or architect insists on the real form, ask which one you are getting.

The most common reasons a pay app gets rejected are math that does not tie to the last application, change orders billed before they were signed, stored materials without backup, and missing lien waivers. Software fixes the first two automatically. The last two are process, and the best tools at least remind you.

Time and materials billing

T&M billing lives or dies on the daily ticket. If the field does not record hours, materials and equipment with a signature each day, the office ends up rebuilding the invoice from memory and the customer disputes it. In restoration, this was most of our billing, and the jobs that got paid on time were the ones where the signed ticket, the photos and the invoice all told the same story. Our post on bulletproof documentation covers what to capture.

Look for software that turns field tickets straight into invoice lines, applies your markup rules, and marks costs as billed so they do not get billed twice.

Change orders

Change orders are where contractors leave the most money on the table. The work gets done on a handshake, the paperwork lags, and by the time anyone remembers, the owner is arguing about it. Your billing software should treat an approved change order as a new line on the contract and push it onto the next invoice. It should also keep pending change orders off the invoice, because billing unapproved changes is one of the fastest ways to get a whole pay app rejected.

Retainage on invoices

Retainage is money you have earned but the owner holds back, usually until substantial completion or final acceptance. On a large job that can be a big share of your profit. The problem is that it is easy to forget. It does not show up as past due in a normal aging report because it is not due yet, and when it finally is due, nobody sends the release invoice.

Good construction billing software withholds retainage on each invoice (as a percent, per line or with a cap), keeps a running retainage receivable by job, and lets you bill the release as its own invoice. Then put a date on your calendar for every retainage balance. If you work in QuickBooks, our QuickBooks for contractors guide covers how to set retainage up so it does not distort your income.

Best construction billing software for 2026

There is no single best tool. There is a best tool for the way you bill. Here is how the main options line up, based on what each vendor lists on its own site and help pages in November 2026. I have left prices out where vendors only quote on request.

Sources: vendor product pages and help documentation for Intuit QuickBooks, Sage 100 Contractor, Foundation Software, Procore, Buildertrend, Knowify and Siteline, checked November 2026.

How to choose construction billing software

Skip the feature checklist for a minute and walk through one real job. Take a job you billed last quarter and ask each vendor to bill it in the demo.

Getting billed work paid

An invoice is a request, not a payment. The contractors who get paid on time do a few simple things every billing cycle, whatever software they use.

Payment terms matter too. Clear terms in the contract, deposits on residential work and agreed billing dates on commercial work all make billing easier to collect. Our post on reducing late payments in construction goes deeper, and if an invoice is already badly overdue, start with how to collect unpaid construction invoices.

Where AR Workflow fits next to your construction billing software

To be clear about what we do: AR Workflow is not billing software, accounting software or a general ledger. It does not create pay apps or calculate retainage. It is the receivables layer that sits next to QuickBooks Online and follows up on the invoices you have already billed.

Once an invoice is open in QuickBooks Online, AR Workflow puts it on a follow-up schedule and sends automated emails, two-way texts and ringless voicemail from a dedicated number. Homeowners get a payment link so they can pay from their phone. An aging dashboard shows every open invoice by age so nothing slips. On insurance work it treats adjusters and carriers differently and never sends them a payment link; those messages ask for status and documentation instead. See how it works with QuickBooks collections and automated payment reminders.

A common setup for a small or mid-size contractor looks like this: estimating and progress invoices in Buildertrend, Knowify or QuickBooks, the books in QuickBooks Online, and AR Workflow handling follow-up and payment collection on the receivables side.

Frequently asked questions

What is construction billing software?

Construction billing software creates invoices that match how construction contracts are paid: progress billing against a schedule of values, AIA G702/G703 pay applications, time and materials, change orders and retainage. It tracks what has been billed to date on each job and sends the invoice to your accounting system.

Can QuickBooks do AIA billing?

QuickBooks Online supports progress invoicing off an estimate. Intuit lists G702/G703 payment applications as a beta feature in Intuit Enterprise Suite, its higher-end online product, so check your plan. Many contractors on QuickBooks Online who bill AIA pay apps add a construction billing tool that connects to it, or move to a construction accounting system with AIA billing built in.

How should retainage show on an invoice?

Each invoice should show the gross amount billed this period, the retainage withheld (by percent or per line), and the net amount due. The running retainage balance should be tracked by job, and the release should be billed as its own invoice once the contract condition is met.

What is the difference between progress billing and AIA billing?

Progress billing is any method of invoicing part of a contract as work is completed. AIA billing is a specific, standardized form of progress billing that uses the G702 summary and G703 continuation sheet, common on commercial jobs using AIA contracts.

Do I need separate software for billing and collections?

Often, yes. Billing tools are built to create accurate invoices. Most do little after the invoice is sent beyond a basic reminder. If invoices regularly sit past 30 days, a receivables tool that follows up on a schedule by email, text and voicemail fills that gap.

Photo: Unsplash. Product details are based on vendor websites and help documentation as of November 2026 and can change. AIA, G702 and G703 are trademarks of The American Institute of Architects.