John Quincy Adams was the son of President John Adams and Abigail Adams. As a diplomat, Adams played an important role in negotiating key treaties, most notably the Treaty of Ghent, which ended the War of 1812.
1 So thatâs how long we advise in our charts. 2  Check with your state about state income tax, though. Some make you keep tax records a really long time: In Ohio, itâs 10 years.  The IRS can also ask for records up to six years after a filing if they suspect someone failed to report 25% or more of his gross income.
What to keep after filing your taxes and how long. Knowing what information to save and for how long can be confusing. As a general rule of thumb, keep tax returns and related documents for at least three years from the April 15 filing deadline.nowing what information to save and for how long can be confusing. As a general rule of thumb, keep tax returns and related documents for at least three years from the April 15 filing deadline.