Resources & Links
Helpful Sites
- Internal Revenue Service
- Social Security Administration
- Delaware Division of Revenue
- Form I-9 Compliance
New Hire Reporting
- New Hire Reporting Information
- Delaware – Fax W4 to 326-6232
Forms
Federal
IRS Withholding Calculator https://apps.irs.gov/app/tax-withholding-estimator
Delaware
Maryland
Payroll
Pennsylvania
Contact Information
IRS
800-829-1040
DE Dept of Labor
302-761-8482
PO Box 41785, Philadelphia, PA 19101-1785
DE Div of Revenue
302-577-8200
820 N. French St., Wilmington, DE 19801
City of Wilmington
302-576-2415
820 N. French St., Wilmington, DE 19801



