And Xero’s cheapest plan limits you to just 5 bills and 20 invoices a month. Only its priciest plan includes multi-currency acceptance. If you take payments from customers across the globe, though, Xero’s online accounting software might not work for you. Xero also integrates with over 800 third-party accounting and payroll apps-more than any other accounting service provider, even Quickbooks. Most importantly, though, Xero makes collaboration easy: each plan includes unlimited users at no additional cost. Sales tax tracking, customization, and reporting.Each plan-including the cheapest, $11 a month-offers these key features: But its features are where Xero absolutely excels. Xero’s sleek dashboard and easy-on-the eyes software are fantastic entry points for simplicity-loving Mac users.