A claim for credit or refund shall be filed with the Director in writing and shall state the specific grounds upon which it is founded. The Director may by regulations prescribe the information to be included in a claim. A claim may not be amended after the last date prescribed by § 539 of this title for filing a claim for credit or refund if the net effect of the amendment would be an increase in the amount of the overpayment.
Structure Delaware Code
Chapter 5. PROCEDURE, ADMINISTRATION AND ENFORCEMENT
Subchapter III. Procedure and Administration
§ 522. Assessment final if no protest.
§ 524. Notice of determination after protest.
§ 525. Determination of Director final.
§ 527. Evidence of related federal determination.
§ 529. Time for performing certain acts postponed by reason of service in combat zone.
§ 531. Limitations on assessment.
§ 532. Recovery of erroneous refund.
§ 533. Interest on underpayment.
§ 534. Failure to file tax return or to pay tax.
§ 535. Fraud and other penalties.
§ 536. Accuracy-related penalty.
§ 537. Authority to make credits or refunds.
§ 539. Limitations on credit or refund.
§ 540. Interest on overpayments.
§ 541. Form of claims for credit or refund; amendments.
§ 542. Notice of disallowance; finality.
§ 543. Claim for credit or refund or protest deemed disallowed.
§ 544. Review of determinations of Director on protests.
§ 545. Collection of debts owed to certain State agencies.
§ 546. Voluntary Tax Compliance Initiative.
§ 547. Professional and occupational licenses; denial or suspension.
§ 548. Paid tax preparers; required information on returns and claims for refund.