Fast & easy invoicing.Get paid, not delayed.
1Book Invoice is the preferred invoice software for freelancers and small businesses. Create and send invoices to customers from any device, get notified when your invoices are viewed, and stay connected via email and push notifications.
With the 1Book Invoice app, sending invoices is fast, secure, and designed to help your business get paid faster.
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Trusted by freelancers and businesses everywhere
Send professional invoices in minutes
Get back time to focus on billable, productive work with the simplest invoicing solution built for contractors, freelancers, and small businesses. Stop switching between tabs, apps, or devices with real-time syncing.

Customize your invoice
Add your brand logo, set colours, customize text and more. Add tax, discounts, additional charges. Track the status of each invoice.

Automate your workflow
Set up recurring invoices, automatic payment reminders, and deposit requests. Save time on repetitive invoicing tasks.

Track and get paid
Get notified when your invoice is viewed. Accept online payments with card, or send invoices via email, link, or messaging apps.
One tool, to manage your business
Get started in minutes
Designed to get you from signup to an expert, our intuitive interface and guided onboarding ensure you spend less time learning and more time actually using our tool.
Run your entire business in one flow
Run your entire business in one flow – from lead to payment. Generate leads with our AI Website Builder, nurture them in the CRM, schedule meetings, send invoices or proposals (even contracts), and get paid online. No more switching between disconnected tools (and tabs).

Work faster, smarter - with AI
Our AI-powered tools simplify and speed up everyday admin tasks. No gimmicks – just AI where it genuinely helps.
AI Documents
Create invoices, proposals, contracts, and more in minutes. Get back lost time from admin, our users save an average of ~8 hours every week.
AI Agents
Your personal AI teammates - ready to handle tasks, follow instructions, and keep things moving without your constant participation.
AI Chat
Use our built-in AI assistant with natural, conversational text. Need to create a new invoice or customer, or generate a proposal? Ask and it'll deliver.
Easiest small business software
Loved by 1M+ freelancers and small businesses
“As a small business, overhead is a major concern. I came across 1Book when I was looking for invoicing apps and haven’t looked anywhere else since then.”
Patrick · Uncle Pat Plumbing
1Book proved to be the ideal solution for Uncle Pat Plumbing. Our user-friendly interface and robust features allowed Patrick to streamline his invoicing and financial processes seamlessly.
Read their story“The easy way to enter invoices and expenses makes tax time so much simpler!”
John · Texas Spa Boss, LLC
With 1Book, John could generate invoices in minutes, allowing him to dedicate more time to serving his clients and less time on paperwork.
Read their story“Super easy to use 1Book on my phone. Very simple. Also being linked with Stripe allows me to take tap and go card payment with my phone or accept Afterpay card payment.”
Simone · Standout Party Props
With 1Book, Simone streamlined her invoicing and payment process, making business transactions seamless and efficient.
Read their storyPricing
Different plans for unique needs
Free
Get startedDocuments
- eSignature: Up to 3 per month
- Invoice: Up to 3 per month
- Open/Download mobile app
Features
- Real-time syncing across web and mobile
- Convert documents
- Gmail Add-on
- Save as PDF
- Accept deposits
- Automatic overdue reminders
- Recurring invoices
- Add your brand logo
- Card payment
- AI Contract
- AI Website Builder
Support
- Self-help guides
- Video tutorials
- Chat and email support
Starter
Get startedSave up to 23%. US$91.20, billed annually
or US$7.60 /month
Documents
- eSignature: Up to 3 per month
- Invoice: Unlimited
Features
- Real-time syncing across web and mobile
- Convert documents
- Gmail Add-on
- Save as PDF
- Accept deposits
- Automatic overdue reminders
- Recurring invoices
- Add your brand logo
- Card payment
- AI Contract
- AI Website Builder
Support
- Self-help guides
- Video tutorials
- Chat and email support
Professional
Get startedSave 23%. US$468.00, billed annually
or US$39.00 /month
Documents
- eSignature: Up to 3 per month
- Invoice: Unlimited
Features
- Real-time syncing across web and mobile
- Convert documents
- Gmail Add-on
- Save as PDF
- Accept deposits
- Automatic overdue reminders
- Recurring invoices
- Add your brand logo
- Card payment
- AI Contract
- AI Website Builder
Support
- Self-help guides
- Video tutorials
- Chat and email support
Get started in minutes
5-minute setup, no credit card needed.