The calendar dates listed consist of Federal due dates and deadlines.
These dates are subject to change.
sticky_note_2 Please note: These dates do not reflect the changes in deadlines regarding disaster relief. To see more information from the IRS, you can visit this webpage for updates across the nation.
If an extension was requested, the deadline for filing extended tax returns for S Corps, LLCs, Partnerships is today.
➜ S-Corporations: File calendar year Form 1120S.
➜ Partnerships: File calendar year Form 1065.
Deadline for Q3 2025 estimated tax payment.
➜ Corporations: Deposit the second installment of your 2025 estimated tax.
➜ Individuals: Pay the third installment of 2025 estimated tax - Use Form 1040-ES.
If an extension was requested, the deadline for filing extended tax returns for Trusts is today.
➜ Trusts: File calendar year Form 1041.
If an extension was requested, the deadline for filing extended tax returns for C Corps, Trusts, Individuals is today.
➜ Corporations: File calendar year Form 1120.
➜ Individuals: File calendar year Form 1040.
Payroll Taxes Q3 2025 due October 31, 2025. (Reporting Period: July, August, September)
sticky_note_2 Please note: Delinquent if not filed by October 31, 2025. When the due date falls on a Saturday, Sunday, or legal holiday, the next business day is considered the last timely date.
The TBC Office is closed in observance of the holiday.
The TBC Office is closed in observance of the holiday.
Deadline for Q4 2025 estimated tax payment.
➜ Individuals: Pay the fourth installment of 2025 estimated tax - Use Form 1040-ES.
➜ You don’t have to make the payment due January 15, 2026, if you file your 2024 tax return by January 31, 2026, and pay the entire balance due with your return.
The TBC Office is closed in observance of the holiday.
Payroll Taxes Q2 2025 due July 31, 2025 (Reporting Period: April, May, June)
sticky_note_2 Please note: Delinquent if not filed by July 31, 2025. When the due date falls on a Saturday, Sunday, or legal holiday, the next business day is considered the last timely date.
The TBC Office is closed in observance of the holiday.
Deadline for Q2 2025 estimated tax payment.
➜ Corporations: Deposit the second installment of your 2025 estimated tax.
➜ Individuals: Pay the second installment of 2025 estimated tax - Form 1040-ES.
Starting today, QuickBooks Desktop 2022 software will be discontinued. This includes all 2022 versions of QuickBooks Desktop Pro, QuickBooks Desktop Premier, QuickBooks Desktop for Mac, and QuickBooks Enterprise Solutions 22.0. Other Intuit products are affected by the software discontinuation.
sticky_note_2 Please note: If you didn’t upgrade your QuickBooks Desktop 2022 by May 31, 2025, you won't have access to live technical support if you run into problems or any of the other Intuit services that can be integrated with QuickBooks Desktop. Discontinued versions won't receive the latest critical security patches and updates, which may expose your financial data and your product to security vulnerabilities.
The TBC Office is closed in observance of the holiday.
Today is the deadline to submit Form 571-L for Alameda County.
➜ Businesses are required by law to file an annual Business Property Statement (BPS) if their aggregate cost of business personal property is $100,000 or greater, or if the Assessor requests the information in writing.
➜ Separate filings are required for each business location.
➜ Statements are due April 1st.
➜ A 10% penalty will be applied if a BPS is received after May 7.
➜ Business Property Statements are confidential documents and are held secret by the Assessor.
sticky_note_2 Please note: Legal deadline for filing business personal property statements without penalty. If May 7 falls on a Saturday, Sunday or legal holiday, a property statement that is mailed and postmarked on the next business day shall be deemed to have been filed between the lien date and 5 p.m. May 7th.
Payroll Taxes Q1 due April 30, 2025. (Reporting period: January, February, March)
sticky_note_2 Please note: Delinquent if not filed by April 30, 2025. When the due date falls on a Saturday, Sunday, or legal holiday, the next business day is considered the last timely date.
The filing deadline for tax returns regarding C Corps (Form 1120), Trusts (Form 1041), Individuals (Form 1040 or 1040SR) is today.
➜ Corporations: For automatic 6-month extension, file Form 7004 and deposit estimated tax.
➜ Individuals: For automatic 6-month extension, file Form 4868 and deposit estimated tax.
Deadline for Q1 2025 estimated tax payment.
➜ Corporations: Deposit the first installment of your 2025 estimated tax.
➜ Individuals: Pay the first installment of 2025 estimated tax - Form 1040-ES.
Payroll Taxes Q4 due January 31, 2025. (Reporting period: October, November, December)
sticky_note_2 Please note: Delinquent if not filed by January 31, 2025. When the due date falls on a Saturday, Sunday, or legal holiday, the next business day is considered the last timely date.
Deadline for Q4 2024 estimated tax payment.
➜ Individuals: Pay the fourth installment of 2024 estimated tax - Use Form 1040-ES.
sticky_note_2 Please note: You don’t have to make the payment due January 15, 2025, if you file your 2023 tax return by January 31, 2025, and pay the entire balance due with your return.
The TBC Office is closed in observance of the holiday.
The TBC Office is closed in observance of the holiday.
The TBC Office is closed in observance of the holiday.
Corporations: File calendar year Form 1120.
Individuals: File calendar year Form 1040.
Payroll Taxes Q3 2024 due October 31, 2024. (Reporting Period: July, August, September
➜ Note: Delinquent if not filed by October 31, 2024. When the due date falls on a Saturday, Sunday, or legal holiday, the next business day is considered the last timely date.
Corporations: Deposit the second installment of your 2024 estimated tax.
Individuals: Pay the third installment of 2024 estimated tax - Use Form 1040-ES.
S-Corporations: File calendar year Form 1120S.
Partnerships: File calendar year Form 1065.
