IRS Federal Tax Forms Hub:
Find IRS Forms by Type & Year
Learn how Form SS-4 (2023) works for obtaining an EIN, who must file, required details, and key rules for completing the IRS application accurately.
FILLABLE FORMS
Form SS-4 (2022) instructions for applying for an EIN, rules, requirements, and steps to complete your federal tax ID application accurately.
FILLABLE FORMSForm SS-4 (2021) instructions for obtaining an EIN, updating details, and meeting IRS requirements for accurate federal tax reporting.
FILLABLE FORMSForm SS-4 (2020) instructions for applying for an EIN, understanding IRS rules, and meeting federal requirements for business identification.
FILLABLE FORMSLearn how Form SS-4 (2019) works, who must apply, required details, and key IRS rules for securing an EIN for business or tax purposes.
FILLABLE FORMSLearn how to file Form SS-4 (2018) and request an EIN correctly using the IRS process, required details, and responsible party rules.
FILLABLE FORMSLearn how Form SS-4 (2017) works, when to file, required details, and how to avoid mistakes when applying for an EIN through the IRS.
FILLABLE FORMSLearn how to complete Form SS-4 (2016) and request an EIN for tax reporting, business filings, and federal compliance requirements in the United States.
FILLABLE FORMSLearn key rules, filing steps, and required details for completing Form SS-4 (2015) when requesting an Employer Identification Number with the IRS.
FILLABLE FORMSLearn how Form SS-4 (2014) works, who must apply, and what information is required when requesting an EIN from the IRS for business purposes.
FILLABLE FORMSLearn key rules for filing Form SS-4 (2013) and understand how to apply for an EIN correctly for your business using IRS requirements.
FILLABLE FORMSLearn how Form SS-4 (2012) works for securing an EIN, meeting IRS rules, and preparing accurate filings with the correct federal identification details.
FILLABLE FORMSLearn how Form SS-4 (2011) works, who must file, and how to request an EIN correctly with clear guidance on filing requirements and IRS rules.
FILLABLE FORMSForm SS-4 (2010) helps businesses apply for an EIN for tax reporting, hiring needs, and entity identification under IRS rules and federal guidelines.
FILLABLE FORMSLearn how Form 8832 (2024) lets eligible entities choose their federal tax classification and understand key rules, filing steps, and requirements.
FILLABLE FORMSHow To Find the Right IRS Form
Identify Your Filer Type
Pick a Form or Year
Browse by Situation
The Form 1040 Family
Form 1040
U.S. Individual Income Tax Return
File an annual individual income tax return, report wages and additional income, claim deductions and credit items, and calculate any refund or payment due.
View Form 1040 →Form 1040-SR
Senior Return (Age 65+)
Choose this optional version if you are age 65 or older and want the same schedules, instructions, and tax filing rules in a senior format.
View Form 1040-SR →Form 1040-NR
Nonresident Alien Return
Report U.S.-source income here if you are a nonresident alien or represent a related estate or trust with a federal tax return filing duty.
View Form 1040-NR →Form 1040-X
Amended U.S. Individual Return
Amend a previously filed Form 1040, 1040-SR, or 1040-NR when you need to correct income, filing status, deduction, credit, or payment information.
View Form 1040-X →Form 1040-ES
Estimated Tax for Individuals
Figure and pay estimated tax on income not subject to withholding, including self-employment income, interest, dividends, rents, and similar amounts.
View Form 1040-ES →Form 1040 Schedules
Business Tax Returns
Review these business tax forms for corporations, partnerships, estates, trusts, elections, extensions, and federal forms classification.
Form 1120
C-Corporation Income Tax Return
Report corporate income, deductions, credits, and income tax liability for domestic corporations.
View Form 1120 →Form 1120-S
S-Corporation Tax Return
File the information return for an S corporation and pass items through to shareholders.
View Form 1120-S →Form 1065
U.S. Return of Partnership Income
Submit the partnership information return and pass income, deduction, and credit items through.
View Form 1065 →Form 1041
Estate & Trust Income Tax Return
Report income, deductions, gains, losses, and tax liability for estates and trusts.
View Form 1041 →Form 2553
Election by a Small Business Corporation
Elect S corporation status for an eligible corporation or other qualifying entity.
View Form 2553 →Form 7004
Application for Automatic Extension (Business)
Request an automatic extension to file certain business returns, but not payments.
View Form 7004 →Form 8832
Entity Classification Election
Choose corporation, partnership, or disregarded classification for an eligible entity.
View Form 8832 →IRS Forms for Tax Debt, Collection, and Relief
Use these IRS forms to request payment plans, collection review, hardship consideration, innocent spouse relief, penalty abatement, lien action, or representation. Filing a form does not automatically stop collection, and penalties or interest may continue.
Form 9465
Installment Agreement Request
Request a monthly installment agreement when you cannot pay the full balance.
View Form 9465 →Form 433-A
Collection Information Statement (Individual)
Deliver detailed individual financial disclosure for collection alternatives, hardship review, or settlement.
View Form 433-A →Form 433-B
Collection Information Statement (Business)
Provide business financial disclosure for collection review, settlement analysis, or payment options.
View Form 433-B →Form 433-D
Direct Debit Installment Agreement
Set the terms for an approved direct debit installment agreement.
View Form 433-D →Form 433-F
Short-Form Collection Statement
Provide a shorter collection information statement for simpler individual cases.
View Form 433-F →Form 656
Offer in Compromise
Apply for an offer in compromise to settle tax debt for less.
View Form 656 →Form 656-L
OIC — Doubt as to Liability
Request an offer based on doubt as to liability, not collectability.
View Form 656-L →Form 8857
Request for Innocent Spouse Relief
Apply for innocent spouse relief from joint tax, penalty, and interest liability.
View Form 8857 →Form 12153
CDP Hearing Request
Submit a collection due process or equivalent hearing request after certain lien or levy notices.
View Form 12153 →Form 12277
Withdrawal of Filed Lien
Petition for withdrawal of a filed federal tax lien in qualifying cases.
View Form 12277 →Form 843
Claim for Refund and Penalty Abatement
File for a refund or abatement of certain taxes, penalties, interest, or fees.
View Form 843 →Form 911
Request for Taxpayer Advocate Service
Seek Taxpayer Advocate Service assistance when an unresolved IRS issue creates hardship.
View Form 911 →Form 2848
Power of Attorney
Authorize an eligible representative to represent you before the IRS and receive information.
View Form 2848 →Form 8821
Tax Information Authorization
Permit information access only, without granting representation authority or advocacy rights.
View Form 8821 →Forms for Employers and Workers
Handle employment tax and information return filings for withholding, paycheques, Social Security tax, Medicare tax, unemployment tax, and nonemployee compensation. These filings also cover employer reporting deadlines tied to wages, contractor payments, payroll records, and annual year-end filing requirements for businesses nationwide.
Foreign Financial Disclosure & Income
Review these international reporting forms carefully. Some taxpayers must attach IRS forms to an income tax return, while FBAR is filed electronically with FinCEN and not with the federal return.
FBAR (FinCEN 114)
Foreign Bank Account Report
Report foreign accounts exceeding $10,000 aggregate value on this separate electronic filing.
View FBAR (FinCEN 114) →Form 8938
Statement of Foreign Financial Assets
Disclose specified foreign financial assets here when you exceed the applicable filing thresholds.
View Form 8938 →Form 5471
Information Return of U.S. Persons (Foreign Corps)
Declare certain officer, director, or shareholder interests in foreign corporations.
View Form 5471 →Form 5472
Information Return of U.S. Corps with Foreign Owners
Document certain related-party transactions involving a foreign-owned U.S. corporation or similar filer.
View Form 5472 →Form 1116
Foreign Tax Credit
Claim the foreign tax credit on eligible foreign taxes paid or accrued.
View Form 1116 →Form 2555
Foreign Earned Income Exclusion
Figure the foreign earned income exclusion and housing exclusion or deduction.
View Form 2555 →IRS Transcripts and Past Returns
Get transcripts when you need wage and income data, adjusted gross income, or account history for tax filing. Order Form 4506 only when you need a full copy of a filed return.
Form 4506
Request for Copy of Tax Return
Obtain a copy of a previously filed tax return, usually for a fee.
View Form 4506 →Form 4506-T
Request for Transcript of Tax Return
Apply for transcript types such as return, account, wage and income, or non-filing.
View Form 4506-T →Form 1040 by Tax Year
Use the matching revision for each prior-year return from 2018 through 2025, as each Form 1040 is year-specific. For refund claims, the IRS generally applies the "three years from filing" or "two years from payment" rule under section 6511, subject to limited exceptions in some cases.
IRS Filing Deadlines at a Glance
Check standard annual and quarterly deadlines here, but confirm the current filing year because weekends, holidays, disaster relief, and extensions can change when a taxpayer must file.
IRS Forms by Life Situation
Search by life situation if you do not know the form number. This section connects common events, notices, and filing problems to the right instruction.
Key IRS Concepts to Know
Learn these core IRS concepts before filing because they affect assessment periods, refund rights, collection timelines, and whether certain relief or appeal options remain available.
What's New for Federal Tax Filing
Track annual filing updates because the IRS changes forms, thresholds, instructions, and online tools every season. Always confirm the current revision before you file or amend.
- Year-specific revisions: Use the exact tax-year return because a 2025 return is filed during 2026, and the wrong revision can delay processing, payments, credits, or valid refund claims.
- Inflation adjustments: Review current instructions each year because the IRS updates tax brackets, the standard deduction, contribution limits, and several credit thresholds before taxpayers begin filing federal returns.
- Electronic filing: Expect most taxpayers to e-file, with online accounts, IRS Free File for eligible income levels, and other electronic options helping people file online or pay.
- Information return thresholds: Confirm current thresholds, due dates, and electronic filing rules before issuing forms because reporting requirements may change based on the form, payer type, and applicable filing year.
- Penalty relief programs: Review current IRS guidance before requesting abatement because eligibility depends on timing and supporting facts, and Form 843 does not provide automatic approval for submitted claims.
For the most current information on tax law changes, refer to irs.gov/newsroom and the annual instructions for each form.
Sources and How We Built This Reference
See the official source framework behind this reference, which organizes IRS and Treasury materials by filer type, tax year, and common taxpayer needs.
Primary Sources
- IRS forms and publications pages for current revisions, PDFs, instructions, and publications
- IRS topic pages on payment plans, collection, transcript services, and filing options
- Internal Revenue Code sections on assessment, refund claims, collection limits, and penalties
- FinCEN and Treasury guidance for FBAR filing, deadlines, and foreign account reporting
- IRS annual instructions for year-specific thresholds, deadlines, credits, and calculations
How We Maintain Accuracy
- Annual review of form revisions, instructions for form updates, and posting dates
- Current-year and prior-year references separated so that taxpayers use the correct PDF
- Transcript, copy, and amendment functions checked against official IRS descriptions
- Collection and relief descriptions written to avoid implying guaranteed approval or automatic stays
- Content intended for general guidance, with final verification at irs.gov before filing
This reference was compiled and last reviewed during the 2025/2026 filing season. Always verify current rules, rates, deadlines, and filing requirements through official IRS sources before relying on specific information.
Reference compiled and last reviewed in the 2025/2026 filing season. Always verify against official IRS sources before relying on any specific rule, rate, or deadline.