Home Online Services Maryland Online Business Tax Providers Maryland Online Business Tax Providers The following software vendors are offering online electronic filing for Maryland business returns/reports. These vendors may charge a fee for providing their service. Click on their link to determine their fee schedule and eligibility requirements. SOFTWARE COMPANY SOFTWARE NAME AVAILABLE RETURN TYPE WEB ADDRESS Trustfile Trustfile Software Sales and Use Tax https://www.avalara.com/us/en/products/returns/small-business.html Accountantsworld Accountantsworld Software Withholding https://www.accountantsworld.com Intuit, Inc. QuickBooks Withholding https://payroll.intuit.com/