The majority of deadlines listed here are for 2023 tax year. Some apply to upcoming Tax Years and some are IRS or Federal deadlines.
April 15, 2024
Tax Year 2023
Income Tax Return
Prepare and e-File an IRS (Due Date April 15, 2024) and New Jersey State Income Tax Return (Due Date April 15, 2024) until October 15, 2024. -
eFileIT
April 15, 2024
2023 Income Tax Extension
Tax Year 2023
Income Tax Return after the automatic April 15, 2024 New Jersey Tax Extension
Last day to e-File a 2023 New Jersey State Income Tax Return for Tax Extension Filers and late eFilers. You can
only e-File (to file by paper see below) New Jersey Income Tax Return together with an IRS Tax Return.
eFileIT
October 15, 2024 via mail-in Forms.
Forms incl. Mailing Address are listed below.
Tax Year 2023
Income Tax Return after the automatic April 15, 2024 New Jersey Tax Extension
Deadline for taxpayers who got an automatic NJ Tax Extension to file their New Jersey Income Tax Return by mail-in Forms - the Forms incl. mailing addresses are listed below - is October 15, 2024. (Optionally, the
eFileIT deadline is Oct. 15, 2024). Instructions on how to
only - without the IRS return -
prepare and file a New Jersey State Income Tax Return on eFile.com.
Tax Amendment for all Tax Years
IRS Due Dates
IRS Tax Return, Extension, Amendment Deadlines
2023, 2024, etc.
Other State Tax Return, Extension, Amendment Deadlines
2023, 2024, etc.
IRS Federal Income Tax Return, Amendment, Extension Deadlines
April 15, 2028
2023 New Jersey Income Tax Return Refund.
IRS Tax Return Refund Claim DeadlineThe last day to file - you will not face late filing penalties - and claim your 2023 New Jersey State Tax Return Refund. This deadline does not apply if you owe 2023 Income Taxes.