Top Invoicing Apps for Freelancers and Solopreneurs Under $20

Wave offers completely free invoicing and accounting software, making it ideal for startups with tight budgets. It includes unlimited invoices, payment processing fees only when you get paid, and basic accounting features without any monthly subscription costs.

A popular cloud-based platform known for its user-friendly interface and automated invoicing features. The basic plan is affordable and provides essential tools for tracking time, expenses, and creating professional invoices, perfect for service-based freelancers.

Hiveage combines task management with invoicing and time tracking in a single, simple interface. Priced at a low monthly fee, it helps solopreneurs manage projects, create estimates, and generate invoices without the complexity of enterprise software.

A desktop application for Windows that allows for offline invoicing with no recurring subscription fees. It offers a one-time purchase model, providing unlimited invoice generation and payment tracking, ideal for those who prefer local data storage.

Invoice Simple provides straightforward, easy-to-use invoicing tools with a transparent pricing structure. The starter plan is budget-friendly and includes essential features like email integration and PDF exports, suitable for simple freelance workflows.

Zoho offers a generous free version and low-cost upgrades for advanced features like multi-currency support and time tracking. Its integration with the broader Zoho ecosystem makes it a strong choice for solopreneurs already using other business tools.

An open-source accounting software that allows for free self-hosting or affordable cloud plans. It is highly customizable and includes invoicing, banking, and expense tracking, appealing to tech-savvy freelancers who want control over their data.

Tailored for independent contractors, this plan focuses on mileage tracking, expense separation, and quarterly tax estimates. Priced competitively, it offers seamless integration with QuickBooks Online for those planning to scale their business later.

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Bonsai is designed specifically for creative freelancers, combining contracts, time tracking, and invoicing. Its pricing is competitive for the value provided, offering proposal automation and client portals to streamline the entire freelance engagement process.

Popular in Europe, Moneybird offers automated invoicing and bookkeeping with an affordable monthly fee. It integrates with various payment gateways and provides real-time insights into cash flow, suitable for international freelancers handling multi-currency transactions.

InvoiceOwl provides a free tier with limited features and affordable upgrades for unlimited invoices and branding. It emphasizes simplicity and speed, allowing solopreneurs to create and send professional invoices quickly via email or text.

Odoo's invoicing module can be used for free with a single app subscription, offering enterprise-grade features. It is highly scalable and integrates with CRM, inventory, and accounting, ideal for solopreneurs expecting significant growth.

While primarily an app builder, Zoho Creator allows for custom invoice generation with a low-cost license. It is best suited for users with specific workflow requirements who need to build tailored billing solutions rather than using standard templates.

Invoice Ninja is a self-hosted solution with affordable cloud hosting options. It offers extensive customization, including custom portals and multiple payment gateway integrations, making it versatile for freelancers with diverse client payment preferences.

Primarily an expense management tool, Pleo offers basic invoicing capabilities for teams. Its low-cost plans and seamless receipt scanning make it a good complementary tool for freelancers who need to manage both income and expenditure efficiently.

A completely free web-based tool for generating simple PDF invoices without registration. While it lacks advanced features, it is perfect for occasional invoicing needs and users who want a quick, no-frills solution without any cost.

Invoicely offers affordable monthly plans with features like recurring invoices, time tracking, and client management. Its intuitive design and comprehensive feature set make it a strong contender for freelancers looking to professionalize their billing process.

Sortly is primarily an inventory management app but offers basic invoicing for asset-heavy freelancers. Its visual interface helps track items sold or leased, making it useful for photographers or rental businesses that need inventory and billing linked.

PayPal allows free invoice creation directly through its platform, leveraging its existing payment infrastructure. While it charges transaction fees, there are no monthly subscriptions, making it a convenient option for freelancers who already use PayPal for transactions.