Payroll Client Onboarding
Complete your new-client paperwork in one sitting — Form W-4 (2026), Form I-9, ACH authorization, and our New Client Authorization Packet. Sign electronically and download your completed documents instantly.
Before you start, have these ready
Your progress is saved in this browser tab — but sensitive numbers are never stored.
- 01
Your details
Social Security number, date of birth, home address, phone, and email.
- 02
Business details
Registered entity name, entity type, registered address, and your EIN if you have one.
- 03
Banking
Bank routing and account numbers for the account payroll will be processed against.
- 04
I-9 documents
A list of acceptable original documents (passport, or driver's license plus Social Security card) to show your employer representative in person.
Your information is encrypted in transit and at rest. Documents are prepared for Better Business Services, Inc.
