Form of state. 1  1918â1938: A democratic republic. 2  1938â1939: After annexation of Sudetenland by Germany in 1938, the region gradually turned into a state with loosened connections among the Czech, Slovak, and Ruthenian parts.n 1938, Adolf Hitler demanded control of the Sudetenland. Britain and France ceded control in the Appeasement at the Munich Conference, ignoring the military alliance Czechoslovakia had with France. First, in October 1938, Nazi Germany occupied and annexed the Sudetenland border region.
So thatâs how long we advise in our charts. 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. Three years: Tax return forms and schedules plus all information to support what you claimed on your return, especially records related to property, investments, or business assets (for depreciation). 2  While there are exceptions, the IRS has 3 years to assess additional tax and audit returns.