Wave is an accounting software that helps small business owners manage their finances. It was founded in 2010 and is based in Toronto, Canada.

Wave offers a number of features, including:

1. Billing: Wave allows you to create and send professional-looking invoices to clients. You can also set up recurring bills, send automatic payment reminders, and accept payments online.
2. Expense Tracking: You can use Wave to track your business expenses and classify them for tax purposes. You can also connect your bank accounts to Wave to automatically import transactions.
3. Scan receipts: Wave offers a mobile app that allows you to scan receipts and automatically upload them to your Wave account. This will help you keep track of your expenses more easily.
4. Accounting: Wave provides basic accounting tools, such as balance sheets and income statements, to help you understand the financial health of your business.
5. Wage: Wave also offers a payroll service that allows you to pay your employees and process payroll taxes.
6. Multi-currency support: If you do business with customers or suppliers in multiple currencies, Wave allows you to track and record transactions in different currencies. This can help you avoid currency exchange fees and simplify the accounting process.
7. Sales tax tracking: Wave allows you to track and manage sales tax for your business. You can set individual tax rates for different products and services, and Wave will automatically calculate the tax on your invoices.
8. Integration: While Wave doesn't have as many integrations as some other accounting software options, it does offer integration with popular apps like PayPal, Etsy, and Shopify. This can help you simplify the accounting process and avoid manual data entry.
9. Customizable reports: Wave offers a number of customizable reports, such as income statements and cash flow statements, to help you better understand the financial performance of your business. You can also export these reports to Excel or Google Sheets if you need to manipulate the data further.
10. Customer Support: Wave offers customer support via email and live chat. They also have an extensive knowledge base including articles, videos, and webinars to help you get the most out of the software.

Overall, Wave is a great option for small business owners looking for user-friendly accounting software. While it may not have as many features as some paid options, it does offer a number of useful tools to help you manage your finances more effectively.