Where Do Individuals File Taxes
For most U.S. individuals, taxes are due to the Internal Revenue Service (IRS), either electronically through IRS Free File or by mail to the IRS address listed in the instructions for your specific form IRS.gov. State taxes are filed with your state department of revenue or taxation, and some cities also impose local income taxes requiring separate filings.
The standard federal deadline for individual tax returns is April 15 of each year, but the exact due date shifts if the date falls on a weekend or holiday, and an automatic six-month extension moves the filing deadline to October 15 while any tax owed remains due April 15 IRS.gov. If you live abroad or are on active-duty military service, you may qualify for an additional automatic two-month extension to June 15.
Where Do Businesses File Taxes
Corporations, partnerships, and limited liability companies typically file with the IRS using forms such as 1120, 1065, or 1120-S, and many states require separate corporate or pass-through entity tax returns IRS.gov. The federal corporate tax return deadline is generally the 15th day of the fourth month after the fiscal year ends, with extensions available.
State and Local Business Tax Filings
Businesses must also register and file with state revenue agencies, and many states require annual reports and franchise or privilege taxes separate from income taxes Forbes. Sales tax obligations are usually handled through state departments of revenue, and certain industries must pay additional excise or environmental taxes to federal or state agencies.
Where Are Estimated Taxes Due
Estimated taxes are paid to the IRS via Electronic Federal Tax Payment System (EFTPS) or by mailing estimated tax vouchers with forms like 1040-ES, and the payments are due on April 15, June 15, September 15, and January 15 of the following year IRS.gov. Individuals with significant investment income, self-employment earnings, or large capital gains often must make these quarterly payments to avoid underpayment penalties.
Special Filing Situations
Certain taxpayers, including nonresident aliens, residents of U.S. territories, and those involved in specific industries like banking or insurance, may need to file with specialized IRS offices or additional agencies SEC.gov. Estates, trusts, and gift tax returns are directed to specific IRS centers based on the filer's location, and international tax obligations may require filings with the IRS and foreign tax authorities simultaneously.