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About

Instant Invoice is a free online invoice generator built for freelancers, contractors, and small businesses who need to create and send professional invoices without the hassle of complex accounting software. Create polished invoices in seconds with no signup required. Fill in your details, add line items, taxes, and discounts, then download as a PDF or send directly to your client. Support for 50+ currencies makes it ideal for international billing. Choose from professionally designed templates across Business, Freelancer, Tech, Healthcare, and more — available in PDF, Word, and Excel formats. Need it even faster? Use the AI Invoice Generator — simply describe your invoice in plain English and get a ready-to-download PDF instantly. Upgrade to Pro at just $7/month for unlimited invoices, payment buttons, client management, and revenue tracking. Or grab a one-time credit pack from $1 — no subscription needed.

About

The most successful businesses use online solutions for accepting payments. Octobat brings automatic and compliant tax invoice generation for every type of online operation. SaaS, ecommerce stores and marketplaces must issue invoices respecting specific national and international rules. Octobat supports one-off invoicing and fully automates recurring billing workflows. Thanks to our direct integrations and API, plug Octobat to your payment service providers and comply automatically with international and specific country regulations - Octobat helps you keep control of your billing workflow, supporting both recurring payments as well as one-time charges. Octobat support both one time or recurring invoicing. Issue and deliver your invoices each time a renewal occurs - compliance made recurring. Decide when you wish to send or not to send invoices and credit notes automatically to your customers - avoid manual duties and focus on your business.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Freelancers & independent contractors Small business owners Agencies & consultants Service-based professionals (designers, developers, photographers, etc.) Startups needing lightweight invoicing without accounting software

Audience

Companies seeking a solution to manage compliant tax invoices on autopilot

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$7
Instant Invoice offers a free plan with 2 invoices to get started — no credit card required. Upgrade to Pro at $7/month for unlimited invoices, no watermarks, payment buttons, client management, and revenue tracking. Prefer not to subscribe? Grab a one-time credit pack from just $1 — no expiry, no commitment.
Free Version Supported
Free Trial Supported

Pricing

$1 per month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Supported

Company Information

Instant Invoice
Founded: 2025
United Kingdom
www.instantinvoice.io

Company Information

Octobat
Founded: 2014
France
www.octobat.com

Alternatives

Alternatives

Invoigin

Invoigin

Vayns
Probill Plus

Probill Plus

Probill Software Services

Categories

Invoice Generators Supported

Categories

Billing and Invoicing Features

Billing Portal Supported
Contact Database Supported
Contingency Billing Not Supported
Customer Portal Not Supported
Customizable Invoices Supported
Dunning Management Supported
Hourly Billing Not Supported
Invoice History Supported
Mobile Payments Not Supported
Multi-Currency Supported
Online Invoicing Supported
Online Payments Supported
Payment Processing Supported
Project Billing Not Supported
Recurring/Subscription Billing Supported
Service Ticket Billing Not Supported
Tax Calculator Supported

Integrations

QuickBooks Accountants Supported

Integrations

QuickBooks Accountants Not Supported
Claim Instant Invoice and update features and information
Claim Instant Invoice and update features and information
Claim Octobat and update features and information
Claim Octobat and update features and information