Mississippi Payroll Tax Registration

Withholding tax account (Taxpayer Access Point)

Mississippi Department of Revenue (DOR)

You'll receive:

A Mississippi withholding tax account number from the Taxpayer Access Point (TAP) portal.

Send Unify:

Your Mississippi withholding tax account number.

Unemployment tax account

Mississippi Department of Employment Security (MDES)

Typical wait:

Often immediately online; some registrations go to MDES staff for approval. By mail, usually about a week.

You'll receive:

A 10-digit MDES employer account number and a new-employer rate of 1.00% in year 1, 1.10% in year 2, and 1.20% in year 3 and after until you qualify for an experience rate, on the first $14,000 per employee.

Send Unify:

Your MDES account number and your rate notice.

Choose Register New Business on the MDES tax portal. The new-employer rates don't include the separate Workforce Investment and Training contribution.