Delaware GRT guide
How to file the Delaware Gross Receipts Tax
A practical walk-through of filing the Delaware GRT — what to gather, where to file, the deadlines, and the mistakes that trip people up.
Last reviewed June 2026 against Delaware Division of Revenue guidance.
What you'll need
- Your Delaware gross receipts for the filing period
- A Delaware business license and your activity category
- A Delaware Taxpayer Portal account
Step by step
- 1Obtain a Delaware business license for your activity.
- 2Confirm your filing frequency — most businesses file monthly or quarterly.
- 3Apply the per-period exclusion ($100,000/month or $300,000/quarter; $1,250,000/month for manufacturers).
- 4File and pay online at the Delaware Taxpayer Portal by the 20th of the following month (monthly) or the end of the next month (quarterly).
Where to file
Delaware Gross Receipts Tax Return
Filed online via the Delaware Taxpayer Portal
Official form / filing portalDeadlines
Monthly or quarterly (by volume).
- Monthly filers20th of next month
- Quarterly filersEnd of next month
- FilingOnline portal only
Common mistakes to avoid
- There are no deductions for costs — the exclusion is the only relief.
- The exclusion is per filing period, not an annual lump sum.
- Online filing is mandatory, and periods with no tax due still require a return.
Estimate your Delaware GRT and get a pre-filled worksheet first.
Open calculatorGeneral information, not tax advice — confirm the current procedure with the Delaware Division of Revenue or a qualified CPA before filing.