Some reliable IRA tax deduction calculators are available through the Internal Revenue Service, Turbo Tax and H&R Block websites, notes each organization's website. Additional available calculators include W-4 withholding, education credits and deduction finders.
The IRS website offers information for all taxpayers, including self-employed, parents and students, among others, states the IRS website. The withholding calculator allows taxpayers to calculate how much they are required to withhold from their paychecks.
Tax services, such as Turbo Tax and H&R Block, offer taxpaying advice, calculators and tools, according to the company websites. The H&R Block website also offers tax articles, including articles on IRAs, to educate taxpayers on how to contribute and available deductions.