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Top Rated Billing and Invoicing Software with Contingency billing

Last updated: July 2026

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145 software options

Stripe Billing logo

Subscriptions and invoicing for ambitious businesses

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Stripe Billing is an end-to-end billing automation solution that helps businesses manage subscriptions and invoices with flexible billing components and billing logic. Stripe Billing helps businesses support new billing models, capture more revenue, and accept more payments globally.

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Xero logo

Cloud-based accounting software for small businesses

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Xero is an award-winning online accounting software with billing and invoicing solutions designed for small business owners and accountants, available on any computer or mobile device with an internet connection. Easily manage your cash flow, bills, and invoices all in one place.

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Abby logo

Billing and invoicing platform

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Abby helps businesses ensure that customer documents are legal and comply with the rules. Customers can pay online and receive reminders for late payments.

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Bill4Time logo

Cloud-based billing and invoicing tool for law firms.

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Fast and easy client billing ensures that you aren't spending your valuable time doing back office work. With flexible billing methods with hourly and flat fee.

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Everhour logo

Time tracking, scheduling, budgeting & expenses software.

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Everhour is a time tracker that can facilitate the billing & invoicing process and integrate with the most popular accounting software such as QuickBooks, Xero, and FreshBooks. Сhoose a billing method, set a billing rate, automate your invoicing process, and keep track of your finances fully.

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Fiverr logo

Time tracking, invoicing and payments app for freelancers

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Fiverr Workspace (formerly AND.CO) is a cloud-based solution for freelance and small business workers, designed to streamline the time & expense tracking process with tools such as invoicing, contract creation, time tracking, expense tracking, & more. Fiverr Workspace also provides native mobile app support for Android & iOS.

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Clio logo

Cloud-based legal practice management tool for law firms.

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Legal billing software that gives you sleek, customizable invoices. Generating a bill and receiving payment with Clio is quick and easy—and can be done online.

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Invoice Ninja logo

More than Invoicing. Powerful Apps to Run Your Business!

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Create. Send. Get Paid.

Invoice Ninja is the leading small-business platform to invoice, accept payments, track expenses & time tasks. Designed for freelancers and small to medium size businesses, Invoice Ninja is a suite of apps to help you get paid.

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Amberlo logo

Law Practice Management software for law firms of all sizes.

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Billing & Invoicing Built for Law Firms. Easily track time, apply hourly rates, fixed fees, or matter budgets, and generate professional invoices in just a few clicks. Create estimates, convert them into invoices, batch-approve bills, and customise invoice templates with your firm’s branding.

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Obat logo

Comprehensive tool designed for construction specialists

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Obat is a tool designed for building specialists. It offers a host of relevant features which can be adapted to meet the requirements of small and large companies in this sector. Obat also includes an invoicing function with customizable documents available in company colors.

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Gestionale sul Web logo

Enterprise resource planning and accounting software

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Gestionale sul Web is an ERP software focused on billing and invoicing, helping businesses manage sales documents, customer invoices, supplier billing, payments, price lists, offers, orders, margins, and financial flows in one integrated platform.

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Avaza logo

All-in-one, client-focused project management for teams.

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Access multi-currency expense tracking, budgeting and billing all in one app with Avaza. Available in the cloud, from any device.

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PracticePanther Legal Software logo

Cloud-based law practice management platform for law firms.

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PracticePanther is the highest-rated, easiest-to-use, all-in-one legal billing and invoicing software on the market. Trusted by tens of thousands of solo, small, and mid-sized law firms across 170+ countries, to automate and streamline firm operations on any device, anywhere.

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ZarMoney logo

Cloud-based accounting solution for businesses of all sizes

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ZarMoney is a cloud-based accounting solution designed to assist businesses of all sizes with the management of inventory and finances. Key features include team collaboration, quote generation, invoicing, transaction tracking, remote access, and approval workflows.

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Invoicely logo

Free Online Invoice Software for Small Businesses

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invoiceky enables freelancers and small businesses to create, send and manage an unlimited number of simple and professional looking invoices.

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LeanLaw logo

Legal billing software for small to mid-sized law firms.

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Customize Your Client's Invoice
Easily edit and control the level of detail, without assistance, of what your clients see on their legal invoices. When they understand their bills, they might just pay you faster. See unpaid bills.
Add LEDES activity & litigation codes to meet your clients’ needs.

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Tridens Monetization logo

The innovative cloud billing and invoice management software

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Tridens Monetization enables service providers to quickly launch innovative digital subscription and usage-based services that differentiate against competitors, develop recurring revenues, and deepen customer relationships.

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OneDeck logo

Business management platform

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Smart, intelligent and automated platform for all your business management needs

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TopNotepad logo

All-in-one software for managing small businesses

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TopNotepad is a cloud-based business management solution for freelancers and small businesses, offering invoicing, accounting and indirect tax (Sales Tax/VAT/GST) compliance solution.

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OneBill logo

Lead to Revenue Redefined

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OneBill is a revenue management software that provides businesses with tools to streamline subscription management and billing processes. It enables to manage administrative operations, including automated order provisioning & activation, CPQ, revenue reporting, commission management, etc.

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Mekari Jurnal logo

Growth Made Easy

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Mekari Jurnal streamlines finance & operations with integrated reporting, inventory, and production management to drive business growth.

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BigTime logo

AI-powered scoping, project, time, and billing software

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BigTime helps reduce operational costs, align talent to projects, accelerate payments, and enable decision-making. With 20+ years of experience, BigTime can get you up and running quickly, operate with flexibility and agility, and enable you to solve today’s challenges and scale with you tomorrow.

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Fortis logo

Embedded payments and invoicing for B2B workflows

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Fortis is a payment processing and invoicing solution that helps businesses receive payments, monitor transactions, capture eSignatures, send payment requests, and more on a centralized platform. It enables team members to create one-time and recurring invoices in compliance with PCI-DSS guidelines.

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Dash logo

Automated A/R for teams who want to keep revenue in-house

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Dash is a cloud-based SaaS platform that helps small businesses manage billing and recover overdue balances with automation. The tools streamline collections, reduce manual follow-up, and let customers self-serve, helping teams keep more revenue in-house.

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IntegriBill logo

Helps start-ups and established providers "get it right."

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IntegriBill is an accurate, affordable, feature-rich billing and customer care software for Telcos and MSPs. It benefits customers with affordable conversions, low monthly minimums, exceptional customer support, and nominal setup costs.

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