The best invoicing software makes it easy for you to track projects, estimates and invoices, and get paid on time. They include features that convert quotes into invoices automatically and track billable hours. Most offer client portals to get the approval of estimates easily so that you can get to work and get paid. The best invoicing software comes down to cost, limitations and features that make it easier for freelancers and small businesses to get paid for their work. If you’re paying a higher monthly fee for billing software, but you also get features to help you track expenses or manage projects, that could be worth it - Best Restaurant Billing Software . We considered how easy it is to use each software, whether you get unlimited invoices and clients and payment types. All of the best billing software lets you accept payments online, whether through a proprietary payment processor or a third-party company. Some offer w...