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Need to contact the District of Columbia Office of Tax and Revenue? Click the link below.
For OLTPRO, you must be an ERO in order to participate in Federal and State tax preparation. Find out how to be an ERO for District of Columbia.
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If you run into problems with the OLTPRO software - just contact our customer service department and they will help! OnLine Taxes has Free online chat and email assistance.
Tax Laws change every year. Find out how the federal tax law changes for 2007 will affect you.
OLT PRO Accounts
Supported Forms
Questions
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OLT PRO Accounts
Supported Forms
Questions
More Information
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