San Franciscoâofficially known as the City and County of San Franciscoâis a consolidated city-county, a status it has held since the 1856 secession of what is now San Mateo County. It is the only such consolidation in California.
Under New York's Tax Law, there is generally a three-year statute of limitations on tax audits, though in some cases (such as when fraud exists or when a substantial understatement has been made on an income tax return), the statute of limitations can last for as long as six years.
If memory serves you have to keep application, denials etc from credit bureaus several years. They can audit you on your taxes back 3 years I believe. There's enough variation that I keep mine 7 years. But I agree with @Dawn Anastasi though. I've been scanning everything into the computer and then throwing away the paper.