The current tax rate brackets are available on the website for the Internal Revenue Service, according to the IRS. The information is available in a downloadable format, so users can refer to the information while they are offline.
The booklet that includes the tax forms for completing an annual tax return also provides tax rate tables toward the back the book, states the IRS. Each tax form has its own tax table, meaning a form 1040 tax return rate table is different from that for a 1040-EZ rate table. The forms are also available on external sites such as Bankrate.com, according to Bankrate.