3 to 7 Years. Keep receipts that support tax deductions for three to seven years. The Internal Revenue Service can randomly audit your return up to three years after the filing date or if it suspects you made an error. That deadline extends to six years if it believes you underreported income by 25 percent or more.
Why do muscles twitch. When we experience involuntary muscle contraction and relaxation, it is known as a muscle twitch. A muscle twitch is the result of an electronic impulse sent to that particular muscle by a nerve that is out of voluntary control for the moment at least.Muscle fasciculation can exhibit in different forms and in different degrees, but the most common form of the phenomenon is twitching of the eyelids.iabetics may experience involuntary muscle twitches due to the effect of insulin, but there are other drugs as well, which are known to affect the nervous system in such a way that certain muscles begin to twitch.
Multiple sclerosis is a disease of the central nervous system that affects muscle coordination and can lead to finger spasms. A muscular disease called Myopathy is the weakening of the muscles that may include the fingers. Overconsumption, or withdrawal, of caffeine can cause the muscles to twitch. Excessive exercise can take its toll on the muscles of the fingers, causing pain and twitching.