By TurboTax The IRS Form 1099-K tracks income received through third-party payment methods, like credit credits, PayPal, and other payment services. 1099-K: The BasicsTax season requires some planning and organization for everyone, and that’s especially true when you’re self-employed. On top of tracking business-related expenses, you’ll likely need to track income streams from several clients. Get every dollar you deserve with unlimited tax advice from experts who know self-employment taxes inside and out. Whether you’re a freelancer, independent contractor, small business owner, or have multi…