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Construction invoices and payments

Never get paid late again

It’s the most important part of every job you take on as a subcontractor – getting paid on time, for the total amount due. Whether you focus on residential or commercial work, Knowify offers easy-to-use solutions for invoicing clients and collecting payment.

Abstraction of an invoice and closeup of tracking their status in Knowify | Invoicing and payments | Knowify features

Use the right contract for the job

Quickly send out professional-looking e-signable fixed price, cost plus, or AIA-syle contracts for every type of project.

Manage change orders with ease

Create, share, and approve change orders that impress clients and automatically factor into your invoicing schedule.

Streamline your billing process

Easily handle progress, time and materials, or fixed price billing in one software that syncs with QuickBooks.

Make timely payment simple

Work with one of Knowify’s approved partners to offer clients easy payment options, or access a pay app advance through Billd.

All-in-one job costing & project management software

Knowify helps specialty contractors manage their entire project lifecycle. Create a project budget, send out a proposal, track project milestones and financials, manage your team, and handle accounts payable and receivable, all in one place that syncs directly with QuickBooks.

Screenshot of the contract view in Knowify where you see line items, the ability add change orders and invoice the customer | Invoicing and payments | Knowify features


Quickly create professional contracts that your clients can sign electronically. Knowify supports fixed price, cost plus, maintenance contracts, and AIA-style contracts.

Change orders

Keep project managers and office staff on the same page with Knowify’s simple to use change order management that automatically integrates with your project’s invoicing.

Invoices & payment

Maintain healthy cashflow and get paid quickly with support for multiple billing formats and automatic payment reminders for overdue clients. Manage AP & AR in a single, organized place.

“Knowify is the main reason we’ve grown so much in the last few years. As the owner of the company – it easily saves me 20-40 hours a week vs what I was doing on paper before. And that number goes up exponentially for about half the company.”

Nathan Kohatsu
Owner, UK Electric

The best QuickBooks Online integration in the construction industry

For small businesses looking for better construction invoicing software, there’s no better combination than Knowify+QuickBooks Online. The platforms sync both ways in real time, so you can invoice clients and pay bills through either system, work where you’re comfortable, and have confidence that your data will never miss a beat.

The best construction accounting solution at the best price

Get the best price on Knowify+QuickBooks Online guaranteed when you sign up today.

Contracts & Invoice types

  • Fixed-price
  • AIA-style
  • Cost plus
  • Maintenance
  • Progress billing
  • Time & materials billing

Fixed price contracts

Break down project pricing and handle progress billing with the flexibility you need. Invoice by percentage or a set dollar amount of the total contract, individual line items, or by units of work performed. Factor change orders into your invoicing schedule automatically so there’s never any question as to where you stand.

AIA-style contracts

Professional, fixed-price pay apps. Bill in AIA G702 and G703 format and break down jobs and billing progress by line item. Your change orders are factored in automatically, so there’s no extra work on your end.

Cost plus contracts

Get reimbursed for your materials, time, and expertise. Bill a fixed price once or on a recurring basis, and handle time and materials jobs with ease.

Maintenance contracts

For maintenance and inspection work, Knowify’s maintenance contracts provide a detailed history of past work performed, and automatically schedule recurring visits for your team in the future.

Don’t wait around to get paid.

Try Knowify free for 14 days, and experience next-level business control and organization for yourself.


Here you can find most frequently asked questions about how Knowify. If you still have question do no hesitate to reach out to us at

What is construction invoicing software?

Construction invoicing software is business management software designed specifically for the needs of contractors. It goes beyond the typical invoicing functions found in solutions like QuickBooks Online, and offers constructions-specific billing methods, while typically integrating with the project management process. Best-in-class construction invoicing software like Knowify allows you to automatically incorporate change orders into your invoices, send clients payment reminders, and can handle otherwise painful invoicing tasks, such as tracking retainage, or creating a schedule of values.

What kinds of contracts does Knowify handle?

Knowify allows you to create four different types of contracts, and automatically enables the appropriate billing styles to accompany each type.

  • Fixed price contracts, including lump sum or progress billing
  • Fixed price contracts with AIA-style billing
  • Cost plus contracts, including time+materials billing, or custom billing
  • Maintenance contracts, for jobs that require recurring service visits.

Are AIA payment applications included in my Knowify subscription?

Every Knowify subscription includes the ability to create and send payment applications, and can automatically create a schedule of values and track project retainage. You can also use official forms G702 and G703, including the AIA logo, for a small additional fee. Learn more about our partnership with AIA Contract Documents here.

How long does it take to create an invoice in Knowify?

Knowify automatically creates professional-looking invoice documents in seconds, using your project plan and budget. You always have the ability to customize, edit, and preview your invoice before sending it by email to your client.

Can I customize or configure my invoices to look a certain way?

Absolutely. Knowify gives you simple tools to personalize the look of your invoices. Include your company logo, terms and conditions, and any special comments or instructions you’d like. Break down projects by line item, or show the full project as one lump sum. Include a schedule of values as needed, and attach documents to your invoice such as photos of completed work, a copy of the initial contract, or anything else you can think of.

How does Knowify help me manage my change orders?

Knowify makes it simple to communicate change orders to the client, and automatically factors approved change orders into invoices, so you never over-bill or under-bill the client.

How will I know when a change order is accepted?

Knowify allows you to send out change orders electronically for signature, and automatically updates your project upon approval.

Can I send payment reminders for my construction invoices using Knowify?

Knowify allows you to set auto-reminders for your clients whenever you send invoices. Set how many days you want to wait before reminding the client, and Knowify will automatically email them a friendly reminder message.

Can I easily manage and report on all my invoices in Knowify?

See all of your invoices along with their status from a single, easy-to-understand dashboard in Knowify.