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Spartacus Tax & Consulting

Resources

Tax Tools

IRS forms, filing deadlines, and financial calculators to help you stay on top of your taxes.

IRS Forms & Publications

Direct links to commonly used IRS forms and publications

Form 1040 — U.S. Individual Income Tax ReturnForm 1040-ES — Estimated Tax for IndividualsForm W-4 — Employee Withholding CertificateForm W-2 — Wage and Tax StatementForm 1099-NEC — Nonemployee CompensationForm 1120 — U.S. Corporation Income Tax ReturnForm 1120-S — S Corporation Income Tax ReturnForm 1065 — U.S. Return of Partnership IncomeForm 990 — Return of Organization Exempt from Income TaxForm 941 — Employer Quarterly Federal Tax ReturnForm 4868 — Application for Automatic Extension of TimeIRS Publications Library

Tax Filing Due Dates

All due dates assume the date falls on a business day. If a due date falls on a weekend or holiday, the deadline moves to the next business day.

January 15

Q4 estimated tax payment due (Form 1040-ES)

January 31

W-2s and 1099-NECs must be furnished to recipients

February 28 / March 31

Paper / e-file deadline for most information returns (W-2, 1099)

March 15

S-Corporation (Form 1120-S) and Partnership (Form 1065) returns due

April 15

Individual income tax returns (Form 1040) due; Q1 estimated tax payment due

April 15

C-Corporation (Form 1120) returns due

June 16

Q2 estimated tax payment due (Form 1040-ES)

September 15

Q3 estimated tax payment due; extended S-Corp and Partnership returns due

October 15

Extended individual income tax returns (Form 1040) due

December 31

Deadline for most year-end tax planning strategies

Financial Calculators

Tax and financial calculators to help you plan and estimate

IRS Withholding Estimator

Estimate your federal income tax withholding and see how your refund, take-home pay, or balance due may change.

IRS Free File

Prepare and file your federal income tax return for free using guided tax software.

IRS Tax Map

Search IRS publications and forms by topic to find the information you need.

Self-Employment Tax Calculator

Calculate your self-employment tax obligation based on your net self-employment income.

Capital Gains Tax Estimator

Understand how capital gains from the sale of assets are taxed at the federal level.

Retirement Savings Contribution Credit

Check if you qualify for the Saver's Credit for contributing to a retirement account.

Need Help With Your Taxes?

Our experienced team is here to help you navigate tax preparation and financial planning. Contact us today.

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