holidays

Tax Day, the official deadline for filing an individual tax return (or requesting an extension). (United States, Philippines)

Tax Day

Day to file federal income tax returns

In the United States, Tax Day is the day on which individual income tax returns are due to be submitted to the federal government. Since 1955, Tax Day has typically fallen on or just after April 15. Tax Day was first introduced in 1913, when the Sixteenth Amendment was ratified.
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Tax returns in the United States

Tax returns in the United States are reports filed with the Internal Revenue Service (IRS) or with the state or local tax collection agency containing information used to calculate income tax or other taxes. Tax returns are generally prepared using forms prescribed by the IRS or…
Source: Wikipedia (CC BY-SA)

April 15

Day of the year

April 15 is the 105th day of the year in the Gregorian calendar; 260 days remain until the end of the year.
Source: Wikipedia (CC BY-SA)