Idaho Payroll Tax Registration Guide for Employers (2025)

Powered by US TAX BAY – Your Nationwide Payroll Compliance Partner

Planning to hire employees in Idaho? Before you can run payroll, you must register for Idaho payroll tax accounts, including withholding tax and unemployment insurance (UI) tax. These accounts ensure your business is compliant with state employment and tax laws.

With hiring happening remotely and across multiple states, many businesses rely on US TAX BAY to complete their payroll tax registrations quickly and correctly—so you can onboard and pay your team without delay.

🏛️ Overview: Payroll Taxes in Idaho

Employers in Idaho are required to register for:

• Withholding Tax – for Idaho state income tax withheld from employee wages

• Unemployment Insurance (UI) Tax – paid by the employer to support the state’s unemployment fund

Both accounts are set up through a single registration form, which simplifies the process for business owners.

1. Employer Withholding Tax Registration – Idaho

Agency: Idaho State Tax Commission

Who Must Register: Any employer who pays wages to workers living or working in Idaho and withholds Idaho income tax.

How to Register:

✅ Complete Form IBR-1: Idaho Business Registration

✅ Register online via Idaho Business Registration Portal or by mail

✅ A Federal EIN is required to apply

This form registers your business for withholding tax, sales tax, and other applicable tax accounts.

2. Unemployment Insurance (UI) Tax Registration – Idaho

Agency: Idaho Department of Labor

Who Must Register: Employers that:

• Pay $1,500 or more in wages in a calendar quarter, OR

• Employ at least one person for 20 weeks in a calendar year

How to Register:

✅ Use the same Form IBR-1 (Idaho Business Registration)

✅ File online or submit the form by mail

Once registered, you’ll receive your Idaho UI account number to report and pay unemployment tax.

✅ Let US TAX BAY Take Care of It

Don’t stress about paperwork and state portals—US TAX BAY handles the entire payroll tax registration process in Idaho and all other states.

Our services include:

✔️ Idaho Withholding & UI Tax Account Setup

✔️ EIN Assistance (if needed)

✔️ State Portal Registration & Access Setup

✔️ Personalized Support from Payroll Experts

🚀 Ready to Hire in Idaho?

Let US TAX BAY register your Idaho payroll tax accounts so you can hire with confidence.

We’ll handle the compliance—accurately and on time.

👉 Book Your Free Consultation

📧 info@ustaxbay.com | 🌐 www.ustaxbay.com

US TAX BAY – Fast. Affordable. Done Right.

Your Trusted Partner for Nationwide Payroll Compliance

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