Construction Invoicing Guide: Get Paid Faster

You finished the job. The client is happy. Now you just need to get paid. Simple, right?

Anyone who has worked in construction for more than a year knows better. The average construction company waits 60 to 90 days to collect payment. Between slow approvals, disputed line items, retainage holdbacks, and clients who suddenly “lost” the invoice, your cash flow takes a beating even when business is good.

Meanwhile, you still have to make payroll, pay your subs, cover material costs, and keep the lights on. That gap between doing the work and collecting the money is where a lot of good contractors go under.

This guide covers how to build better construction invoices, choose the right construction invoicing software, and put systems in place that get money in your account faster.

Why Construction Invoicing Is Different

Most invoicing software was built for freelancers or retail businesses. Send an invoice, get paid, done. Construction does not work that way.

Your invoicing needs to handle:

• Progress billing so you can bill based on percentage of completion, not just flat amounts
• Retention tracking to hold back the agreed percentage and release it at closeout
• Change orders that automatically update the contract value and flow into your next invoice
• Lien waivers that get sent and signed alongside payment
• AIA-style billing (G702/G703 forms) for commercial work
• Job costing integration so every invoice ties back to actual costs and you can see real profit margins

If your invoicing tool cannot do at least half of those things, it was not built for construction.

What Makes a Good Construction Invoice

A good invoice is not just a bill. It is a document that moves through the approval process without getting stuck.

Clear Identification

At the top of every invoice:

• Your company name, address, phone number, and email
• Your contractor license number (required in many states)
• The client or GC name and billing address
• The project name and project address (these are often different)
• A unique invoice number
• The invoice date and payment due date

Missing or wrong information is one of the top reasons invoices get bounced back. If the project address does not match what the client has on file, it gets delayed.

Itemized Work Description

Never send a lump-sum invoice that just says “for services rendered” and a total. Break it down:

• A description of the work performed
• The quantity (hours, square feet, linear feet, units)
• The unit price
• The extended total

Tie your line items back to the contract or schedule of values. This makes it easy for the client to match your invoice to the contract and approve it without questions.

Change Order Documentation

List change order work separately. Include the change order number, description, approved amount, and the portion being billed on this invoice. Never bury change order work inside regular line items. When clients see unfamiliar charges mixed into the regular billing, they get nervous and start asking questions.

Retainage Calculation

Show the retainage being held as a separate line:

• Gross amount billed this period
• Less retainage (at the agreed percentage)
• Net amount due this period
• Cumulative retainage held to date

Running Balance

Show a running total: total contract amount (including approved change orders), total billed to date, total received to date, retainage held to date, and current amount due. This gives the client confidence that the math adds up and makes it harder for someone to “forget” about a previous invoice.

Progress Billing vs. Fixed Price Billing

There are two main approaches to billing construction work.

Fixed Price (Lump Sum) Billing

You agree on a total project cost upfront and bill at agreed milestones. For example:

• 10% at contract signing
• 20% at foundation complete
• 25% at framing complete
• 25% at rough-ins complete
• 15% at substantial completion
• 5% at final completion

This works well for smaller residential projects where the scope is well-defined. The client knows exactly what they are paying at each stage, and you get predictable cash flow.

Progress Billing (Percentage of Completion)

With progress billing, you invoice monthly based on the percentage of each line item that is complete. This is the standard for commercial construction and larger residential projects.

Example:

Progress billing keeps cash flowing throughout the project, but it requires disciplined tracking of what is actually complete.

Understanding AIA-Style Billing

If you work on commercial projects, you will encounter AIA (American Institute of Architects) billing documents.

AIA G702: Application and Certificate for Payment

The summary sheet showing your total contract amount, approved change orders, work completed to date, materials stored, retainage, and the amount you are requesting.

AIA G703: Continuation Sheet

The detailed schedule of values that supports the G702. It lists every line item, the scheduled value, previous work completed, work completed this period, materials presently stored, total completed and stored, percentage complete, balance to finish, and retainage.

Tips for AIA Billing

• Get the schedule of values approved early. Submit within the first week. Break down vague line items into specifics.
• Be accurate on percentages. If framing is 72% complete, report 72%. Experienced PMs catch inflated numbers.
• Submit on time, every time. Miss the billing date and your payment gets pushed to the next cycle.
• Include backup documentation. Attach lien waivers, sub invoices, and material receipts.

Retainage: What You Need to Know

Retainage is one of the most frustrating parts of construction billing. The owner (or GC, for subs) withholds 5% to 10% of each progress payment until substantial completion.

On a $500,000 project with 10% retainage, that is $50,000 sitting in someone else’s account for the duration of the job.

Protecting Yourself on Retainage

• Know your state laws. Many states cap retainage at 5% or require escrow accounts.
• Track retainage separately. Include it on every invoice and submit a release invoice at substantial completion.
• Negotiate terms. On your own contracts, consider reducing retainage to 5% or eliminating it on smaller residential projects.
• Tie release to your scope. If you are a sub, try to negotiate retainage release when your scope is complete, not when the entire project finishes.

The Best Construction Invoicing Software (2026)

Choosing the right construction invoicing software can cut days or weeks off your payment cycle. Here are the top options ranked by how well they handle real construction billing.

1. Projul - Best All-in-One for Contractors

Pricing: Core at $4,788/year, Core+ at $7,188/year, Pro at $14,388/year (no per-user fees)

Projul was built by a contractor who got tired of duct-taping five different tools together. Invoicing is just one piece of a platform that covers CRM, estimating, scheduling, time tracking, job costing, and project management.

What sets Projul apart for invoicing:

• Progress billing built directly into each project (Core+ and above). Bill by percentage complete, line item, or milestone.
• Change orders flow straight into invoices (Core+ and above). When the homeowner adds that extra bathroom vanity, it shows up on the next bill automatically.
• Retention tracking with automatic calculations and release scheduling
• QuickBooks Online two-way sync so your books stay current without double entry (Core+ and above)
• Online payments through JustiFi with next-day deposits
• Client portal where clients can see invoices, approve change orders, and make selections (Core+ and above)

The biggest advantage? No per-user fees. Most construction software charges $50 to $100 per user per month. When you have 15 office staff, 30 field crew, and 20 subs who need access, that adds up fast. Projul’s flat rate means everyone gets access.

G2 Rating: 4.7/5 | Capterra Rating: 4.7/5

See Projul pricing and start a free trial

2. QuickBooks Online - Best Standalone Accounting

Pricing: Simple Start at $38/mo, Essentials at $65/mo, Plus at $99/mo, Advanced at $275/mo

QuickBooks is the accounting software most contractors already use. Its invoicing is solid for basic billing: professional invoices, online payments, recurring billing, and outstanding balance tracking.

But QuickBooks was built for accounting, not construction. It does not understand progress billing, retention, or change orders out of the box. Most contractors use QuickBooks for accounting and pair it with a construction-specific platform that syncs invoices back automatically.

G2 Rating: 4.0/5 | Capterra Rating: 4.3/5

3. Buildertrend - Best for Large Residential Builders

Pricing: Starts around $499/mo (custom pricing). Per-user fees apply on most plans.

Buildertrend ties invoicing into project management and supports progress billing and change order tracking. The customer portal lets homeowners view and pay invoices online.

The downside is cost. Many users report annual bills north of $8,000 to $10,000, and per-user pricing adds up when your team grows.

G2 Rating: 4.2/5 | Capterra Rating: 4.5/5

4. JobTread - Best for Budget-Focused Workflow

Pricing: Starts around $4,788/year (custom pricing)

JobTread has strong estimating and budgeting tools with invoicing that flows directly from estimates and budgets. It supports progress billing, change orders, and QuickBooks Online integration.

The trade-off is that JobTread focuses on the financial side. If you need full project management, scheduling, CRM, and field tools in one platform, you will need additional software.

G2 Rating: 4.8/5 | Capterra Rating: 4.8/5

5. FreshBooks - Best Generic Invoicing for Sole Proprietors

Pricing: Lite at $21/mo, Plus at $38/mo, Premium at $65/mo

FreshBooks makes invoicing dead simple with a clean interface and a great mobile app. But it was not built for construction. No progress billing, no retention tracking, no change order integration, and no job costing. If you invoice flat-rate jobs, it could work. The moment you need phased billing, you have outgrown it.

G2 Rating: 4.5/5 | Capterra Rating: 4.5/5

6. Contractor Foreman - Best Budget Construction-Specific Option

Pricing: Free plan (1 user), Standard at $49/mo, Plus at $87/mo, Premium at $148/mo

Contractor Foreman includes invoicing, estimating, scheduling, and project management at a lower price point. It supports progress billing, change order tracking, and QuickBooks integration. The interface is more basic and the mobile experience could be smoother, but for a contractor watching every dollar, it is a solid starting point.

G2 Rating: 4.5/5 | Capterra Rating: 4.5/5

Feature Comparison: Construction Invoicing Software

Why QuickBooks Integration Is Non-Negotiable

Around 80% of small contractors use QuickBooks for their accounting. Your construction invoicing software needs to play nice with it.

Look for two-way sync, not just a one-way export. Two-way means when a payment is recorded in QuickBooks, it updates in your invoicing tool too. And when you create an invoice in your construction software, it shows up in QuickBooks automatically.

Projul’s QuickBooks Online integration syncs customers, invoices, payments, and expenses in both directions. You create the invoice in Projul where all your project data lives, and it lands in QuickBooks where your bookkeeper lives.

7 Common Invoicing Mistakes That Slow Down Payment

1. Invoicing Late

The longer you wait to invoice, the longer you wait to get paid. Every day between completing the work and sending the invoice is a day you gave away for free. Pick a billing date and stick to it.

2. Sending Invoices to the Wrong Person

Plenty of invoices get delayed because they went to the project manager instead of accounts payable. Confirm the billing contact and submission method at the start of every project.

3. Missing Backup Documentation

An invoice that generates questions generates delays. Include all backup documentation, reference the contract and change order numbers, and make the math transparent.

4. Burying Change Order Charges

When clients see unfamiliar charges mixed into regular line items, they get nervous. Keep change order work listed separately with clear references.

5. Ignoring Lien Rights

Mechanics lien rights are one of the most powerful tools to protect against non-payment. Send preliminary notices on every project, even when you expect no payment issues. It is cheap insurance.

6. Not Offering Online Payments

Some contractors see payment times drop by 10 to 15 days just by adding online payment options. The easier you make it to pay, the faster money hits your account.

7. Using Generic Invoicing Tools

Manual invoicing or generic tools that were not built for construction create data silos and double entry. Construction invoicing software automates the tedious parts and connects invoices to your estimates, change orders, and job costs.

How Projul Handles the Full Invoice Lifecycle

Most invoicing tools handle the “send invoice, get paid” part. Projul handles the whole story.

Lead comes in through the CRM. You build an estimate. The client signs it in the customer portal. It becomes a project with a budget. Your crews get scheduled and their time gets tracked against the budget.

When it is time to bill, you create an invoice from the actual project data. Every cost, every change order, every material is already there. The retention calculates automatically. The client gets an email with a link to view and pay in the customer portal. The payment syncs to QuickBooks.

That is one flow. No copying numbers between apps. No “let me check the spreadsheet.” No waiting for the office manager to get back to process an invoice.

Your field team tracks time and your office team sees the costs update in real time. When you invoice, you are billing from real numbers, not estimates from three weeks ago.

Setting Up Your Invoicing Process

Here is a simple framework to get organized.

At contract signing: Confirm billing terms, billing contacts, required documentation, and submission method. Set up the schedule of values if applicable. Add billing deadlines to your calendar.

During the project: Track costs and progress in real time. Log change orders as they are approved. Keep backup documentation organized as you go, not at billing time.

At each billing period: Review work completed, prepare the invoice with all required documentation, and submit on time. Verify retainage calculations and previous payment credits.

After submission: Follow up within a week to confirm receipt. Follow up again a few days before the due date. If payment is late, escalate per your contract terms.

At project completion: Submit final invoice including retainage release. Collect lien waivers from subs. Close out the job in your accounting system.

The Bottom Line

Getting paid in construction should not be harder than doing the actual work. But for too many contractors, chasing payments is a constant drain on time, energy, and cash flow.

The fix comes down to two things: better invoices and better tools. Build clear, detailed invoices that move through approval without questions. Submit them on time, every time. And use construction invoicing software that connects your estimates, change orders, job costs, and accounting in one place.

Projul gives you invoicing that ties into your entire workflow, with no per-user fees and two-way QuickBooks sync. Start a free trial and see how it works on your next project.