| Business | Phone |
| Miller County Tax Assessor 400 Laurel St # 100, Texarkana 71854 | (870) 774-1502 |
| Miller County Tax Collector 400 Laurel St # 111, Texarkana 71854 | (870) 774-1001 |
| Miller County Treasurer 400 Laurel St, Texarkana 71854 | (870) 774-0003 |
| Revenue Dept 801 E 4th St, Texarkana 71854 | (870) 773-3871 |