Managing taxes can be complex, especially with ever-changing deadlines and requirements. Whether you're a business owner or an individual taxpayer in Miami, Florida, staying on top of tax obligations is essential to avoid penalties and ensure compliance. This guide provides an all-in-one resource for the 2025 tax calendar, IRS forms, publications, and crucial tax due dates, helping you stay prepared throughout the year.
Quarterly Estimated Tax Payment Deadlines
Individuals and businesses that pay estimated taxes must adhere to these due dates:
January 15, 2025 – Q4 2024 Estimated Tax Payment Due
April 15, 2025 – Q1 2025 Estimated Tax Payment Due
June 15, 2025 – Q2 2025 Estimated Tax Payment Due
September 15, 2025 – Q3 2025 Estimated Tax Payment Due
For additional details on estimated tax payments, visit the IRS Estimated Tax Payments page.
Individual Tax Deadlines
April 15, 2025 – Individual Tax Return (Form 1040) Due
April 15, 2025 – Deadline to File for a Tax Extension (Form 4868)
October 15, 2025 – Extended Individual Tax Returns Due
For further guidance, check out our Tax Services page.
Business Tax Deadlines
Corporations & Partnerships
March 15, 2025 – Partnership and S-Corporation Tax Returns (Forms 1065, 1120S) Due
April 15, 2025 – C-Corporation Tax Returns (Form 1120) Due
September 15, 2025 – Extended Partnership and S-Corp Returns Due
October 15, 2025 – Extended C-Corporation Tax Returns Due
Payroll & Employment Tax Deadlines
Employers must file payroll tax forms and make tax deposits by the following dates:
January 31, 2025 – W-2 & 1099-NEC Forms Due to Employees/Contractors
January 31, 2025 – Q4 2024 Payroll Tax Returns (Form 941) Due
April 30, 2025 – Q1 2025 Payroll Tax Returns Due
July 31, 2025 – Q2 2025 Payroll Tax Returns Due
October 31, 2025 – Q3 2025 Payroll Tax Returns Due
For more payroll compliance information, visit our Accounting Services page.
State & Sales Tax Deadlines
State tax deadlines vary based on location and tax type. In Florida, important deadlines include:
Monthly Sales Tax Payments – Due on the 20th of each month
Quarterly Sales Tax Payments – Due April 20, July 20, October 20, January 20
Annual Business Tax Filings – Due May 1, 2025
For detailed Florida tax deadlines, visit the Florida Department of Revenue website.
Retirement Account Contribution Deadlines
April 15, 2025 – IRA and Roth IRA Contributions for 2024 Deadline
April 15, 2025 – HSA Contributions for 2024 Deadline
September 15, 2025 – SEP IRA Contributions for Business Owners DeadlineLearn more about tax-advantaged accounts in our Business Management Support section.
Understanding and using the correct IRS forms and publications is essential for tax compliance. This page provides direct links to the most commonly used IRS documents, ensuring you have the resources you need for accurate tax filing.
Form 1040: U.S. Individual Income Tax Return – Standard federal tax return for individuals.
Form 1040-ES: Estimated Tax for Individuals – For taxpayers making estimated tax payments.
Form 1040-X: Amended U.S. Individual Income Tax Return – To amend a previously filed return.
Form W-4: Employee’s Withholding Certificate – Determines tax withholding from wages.
Form 1120: U.S. Corporation Income Tax Return – For C-corporations filing tax returns.
Form 1120-S: U.S. Income Tax Return for an S Corporation – Used by S corporations.
Form 1065: U.S. Return of Partnership Income – For partnership tax filings.
Form 940: Employer’s Annual Federal Unemployment (FUTA) Tax Return – Employers’ unemployment tax reporting.
Form 941: Employer’s Quarterly Federal Tax Return – For reporting employment taxes.
Form 1099-NEC: Nonemployee Compensation – Reports payments to independent contractors.
Form 1099-MISC: Miscellaneous Income – Reports various types of income.
Form 5498: IRA Contribution Information – Reports IRA contributions.
Form 8606: Nondeductible IRAs – For taxpayers with nondeductible IRA contributions.
Form 8814: Parents’ Election to Report Child’s Interest and Dividends – Allows parents to report a child's income.
Publication 17: Your Federal Income Tax – Comprehensive tax guide for individuals.
Publication 334: Tax Guide for Small Business – Guidance for sole proprietors and small businesses.
Publication 505: Tax Withholding and Estimated Tax – Explains withholding and estimated tax payments.
Publication 531: Reporting Tip Income – Guidance for workers receiving tip income.
Publication 502: Medical and Dental Expenses – Covers deductible medical and dental expenses.
Publication 503: Child and Dependent Care Expenses – Outlines tax credits for childcare.
Publication 526: Charitable Contributions – Information on deducting charitable donations.
Publication 535: Business Expenses – Covers business deductions.
Publication 936: Home Mortgage Interest Deduction – Explains mortgage interest deductions.
Publication 590-A: Contributions to IRAs – Covers IRA contributions.
Publication 590-B: Distributions from IRAs – Details IRA withdrawal rules.
Publication 970: Tax Benefits for Education – Information on education-related tax benefits.
Comprehensive Tax Services – Full-service tax solutions tailored for Miami residents.
Accounting Services – Ensure accurate financial reporting and compliance.
Business Management Support – Tax-efficient strategies for businesses.
The major deadlines include April 15 for individual tax filings, March 15 for corporate tax returns, and quarterly estimated tax payments on January 15, April 15, June 15, and September 15.
You can download forms and publications directly from the IRS website or visit our IRS Forms section for quick access.
Failure to file or pay taxes on time can result in penalties ranging from 5% of unpaid taxes per month to additional interest charges. Extensions are available but do not defer tax payments.
Florida does not impose a state income tax, but business owners must still comply with federal filing deadlines. Sales tax and other state-related filings have separate due dates.
Review the tax calendar, gather necessary documentation, and consult with a tax professional. Consider our Tax Planning Services for a customized approach.
