Federal
- 1040.com
- Commercial site to retrieve current and back issues of both federal and state tax forms, instructions, and publications.
- Energy Star
- Provides qualifications for the federal tax credits for energy-efficient products or renewable energy systems for your home from the EPA and the U.S. Dept. of Energy.
- Internal Revenue Bulletins
- Official IRS publication announcing new rulings and tax regulations.
- Internal Revenue Service
- Official IRS site with current and back copies of federal tax forms and publications for downloading and printing.
- IRS Forms and Publications
- Official IRS web page for downloading or browsing forms and publications.
- Search IRS List of Recognized Charities & Non-Profits
- IRS Publication 78, which provides the current list of "recognized" 501(c)(3)s, is available online.
- Tax, Accounting and Payroll Sites Directory
- Directory of links to federal and state forms and publications, software products, news, and associations.
State
- Federation of Tax Administrators
- Provides a map for quick access to tax forms from all 50 states.
- Indiana Department of Revenue
- Official website for current and previous state tax forms, filing assistance, and full-text publications.
- Kentucky Department of Revenue
- Official Kentucky online taxpayer service center with tax forms, publications, assistance and links.
- Ohio Department of Taxation
- Official website with taxpayer advice, forms, publications, news releases, rules, and statistics.
- Ohio Income Tax Forms
- Downloadable income tax forms for individuals.
- Ohio’s Tax Finder
- Information on local taxing jurisdictions and tax rates for all addresses in the State of Ohio.
- Tax Policy Center – Tax Facts for States
- Need the sales tax rate for a particular state? Also includes other state revenue rates.
Local
- City of Cincinnati Income Tax Division
- Downloadable income tax forms and other information on the city income tax.
- Hamilton County Auditor
- Information on delinquent tax forecloses and sales from county agency responsible for collecting Ohio estate and personal property taxes.
- Hamilton County Treasurer
- Information on real estate taxes and records with links to unclaimed funds and tax rates.