NJ Tax Filing Deadlines You Shouldn't Miss

The deadlines that apply to most individuals

For most W-2 employees and individual filers, the deadline to file and pay both your federal and New Jersey return is April 15 (or the next business day if that date falls on a weekend or holiday). If you can't file by then, you can request a 6-month extension to file, though an extension to file is not an extension to pay. Any tax owed is still due by the original deadline to avoid interest and penalties.

Deadlines for business entities

Business filing deadlines depend on your entity type. Partnerships and S-Corporations typically file by mid-March, about a month ahead of individual returns, since their income needs to flow through to owners' personal returns via K-1s before those personal returns are due. C-Corporations generally follow the individual deadline, though this can vary based on your corporation's fiscal year. Because these dates shift depending on weekends, holidays, and your specific entity structure, it's worth confirming your exact deadline each year rather than assuming it's the same as last year's.

Quarterly estimated tax payments

If you're self-employed, a freelancer, or a business owner whose income isn't subject to withholding, you're generally expected to make quarterly estimated tax payments to both the IRS and New Jersey. These typically fall in mid-April, mid-June, mid-September, and mid-January of the following year. Missing these isn't just about the balance due at filing, it can also trigger an underpayment penalty even if you pay everything owed by April 15.

What if you miss a deadline?

Missing a deadline doesn't mean you're out of options. Filing as soon as possible, even late, generally reduces the penalties compared to not filing at all. If you're behind on a prior year, it's worth addressing sooner rather than later, both the IRS and the New Jersey Division of Taxation calculate penalties based on how much time has passed.

A simple way to stay ahead of deadlines

The businesses and individuals who handle tax season with the least stress are usually the ones who treat it as a year-round conversation rather than a once-a-year scramble. Quarterly check-ins, whether with a preparer or just a calendar reminder, catch estimated payment issues while there's still time to adjust, instead of discovering them in April.

This article is for general informational purposes and isn't personalized tax advice. Tax rules and thresholds change from year to year, confirm current figures with your preparer or directly at IRS.gov and nj.gov/treasury/taxation before filing.