Businesses registered in New Jersey file sales and use tax returns quarterly on Form ST-50, submitted electronically through the state’s Tax Portal by 11:59 p.m. on the 20th of the month after each calendar quarter ends.1New Jersey Division of Taxation. Filing and Remitting Sales and Use Tax The tax rate is 6.625% on most tangible goods, specified digital products, and certain services.2State of New Jersey – Department of the Treasury – Division of Taxation. Sales and Use Tax Higher-volume sellers also make monthly payments during the first two months of each quarter. Paper returns are not accepted.
Quarterly Deadlines and When Monthly Payments Kick In
You file an ST-50 every quarter, even when you made no sales and owe no tax.1New Jersey Division of Taxation. Filing and Remitting Sales and Use Tax The four deadlines are:
- First quarter (January through March): April 20
- Second quarter (April through June): July 20
- Third quarter (July through September): October 20
- Fourth quarter (October through December): January 20
If the 20th falls on a weekend or legal holiday, the deadline moves to the next business day.
Monthly payments are a separate obligation on top of the quarterly return. You must file a monthly voucher only when both conditions apply: you collected more than $30,000 in New Jersey sales and use tax during the prior calendar year, and you owe more than $500 for the month in question.1New Jersey Division of Taxation. Filing and Remitting Sales and Use Tax If your prior-year collections were $30,000 or less, monthly payments are never required, no matter how large a given month gets. Monthly payments go through the Tax Portal under the “Monthly Voucher” form type and are reconciled on the following quarterly ST-50.
What You Report on the ST-50
Start with total gross receipts from all New Jersey sources for the quarter. This includes every sale, taxable or not, and covers sales you have invoiced but not yet been paid for.1New Jersey Division of Taxation. Filing and Remitting Sales and Use Tax From that figure, subtract exempt sales: clothing and footwear, most grocery items, prescription and over-the-counter drugs, disposable household paper products, newspapers, and sales to tax-exempt organizations, among others.3New Jersey Division of Taxation. New Jersey Sales Tax Guide The remainder is your taxable receipts. Multiply by 6.625% for the tax due.
The same return handles use tax. Use tax applies when your business buys goods or services for use in New Jersey without paying New Jersey sales tax at purchase, which happens often with out-of-state vendors and online orders. The rate is the same 6.625%, and the amount is reported on the ST-50 alongside collected sales tax.2State of New Jersey – Department of the Treasury – Division of Taxation. Sales and Use Tax
If your business is certified in an Urban Enterprise Zone, qualifying sales made within the zone are taxed at half the standard rate (3.3125%), and your return must reflect that reduced rate on those transactions.4New Jersey Division of Taxation. Urban Enterprise Zone
Discovered an error after filing? Submit an amended return through the portal with every line completed, not just the corrected ones. If the amendment produces an overpayment, claim it by filing Form A-3730, either by mail or through the portal.1New Jersey Division of Taxation. Filing and Remitting Sales and Use Tax
How to File and Pay Through the Tax Portal
Log into the state’s Tax Portal, select the sales tax filing type, and choose the period you’re filing for. The system prompts you through gross receipts, exempt sales, taxable receipts, and the tax computation. Payments are also submitted electronically, with three accepted methods:1New Jersey Division of Taxation. Filing and Remitting Sales and Use Tax
- Electronic check drawn from your bank account, with no processing fee
- Electronic funds transfer, an ACH debit initiated through the portal
- Credit card, with a processing fee added on top of the tax payment
After submission, the portal generates a confirmation page with a number and timestamp. Save it. If the state later questions whether you filed on time, that confirmation is your proof.
If You Sell on a Marketplace
Platforms like Amazon, eBay, Etsy, and Walmart Marketplace are treated as marketplace facilitators under New Jersey law, which puts the tax obligation on the platform for sales it facilitates through listing, payment processing, or fulfillment.5Justia. New Jersey Code 54:32B-3.6 The platform collects and remits the tax on those transactions, not you.
You still file your own ST-50 for any direct sales made outside the marketplace, including through your own website. Track platform sales separately so you don’t report those amounts a second time on your return. The marketplace’s collection covers only the transactions it processed.
Penalties for Filing or Paying Late
New Jersey imposes three separate charges when a return is late, and they run at the same time:
- Late filing penalty of 5% of the unpaid tax for each month or partial month the return is late, capped at 25%, plus a flat $100 for each month overdue6New Jersey Division of Taxation. New Jersey Tax Debts – Type Selection
- Late payment penalty of 5% of the tax due if payment misses the deadline
- Interest at the prime rate plus 3%, compounded annually, on the unpaid balance. At year-end, accumulated penalties and interest fold into the balance that keeps accruing.6New Jersey Division of Taxation. New Jersey Tax Debts – Type Selection
A business that owes $5,000 and files two months late would face a $500 late filing penalty (5% × 2 months), $200 in flat penalties ($100 × 2 months), and a $250 late payment penalty (5% of the balance), before interest is added. And the person who signed the registration as the responsible party is personally liable for these amounts, because sales tax is a trust fund obligation.7New Jersey Division of Taxation. Responsible Person Acknowledgement and Judgment Authorization Corporate structure does not shield the responsible person from personal collection.
Records to Keep in Case of Audit
The Division of Taxation has four years from the date you filed a return to audit it.8New Jersey Division of Taxation. New Jersey State Tax Audit Your Rights and Responsibilities If you never filed, or filed a fraudulent return, there is no time limit.9New Jersey Division of Taxation. New Jersey Taxpayers’ Bill of Rights Keep sales records, exemption certificates, purchase invoices, and point-of-sale data for at least four years from the filing date of each return.
Audits most often turn on three issues: taxable items classified as exempt, use tax not paid on out-of-state purchases, and reported receipts that don’t match bank deposits. Ledgers that clearly separate taxable and exempt sales, with exemption certificates on file for every exempt customer, are the strongest defense. The burden of proving reported numbers rests with the taxpayer, so gaps in records usually cost the business rather than the state.