Compare the outgoing provider's final responsibilities with the incoming provider's accepted responsibilities for each affected account and period. Do not infer a transfer from a software activation date. The employer's tax accounts, provider access and agency authorizations need distinct records.
| Item | Outgoing provider evidence | Incoming provider evidence |
|---|---|---|
| Returns | Periods and records the provider still owns | Periods it has accepted in writing |
| Payments | Actual payment and settlement evidence | Approved future responsibility and confirmation process |
| Annual statements | Historical source totals and agreed role | Accepted wage-reporting arrangement |
| Accounts | Employer account records and remaining access | Approved access and setup evidence |
| Authority | Scope and status of existing permissions | Required permissions for specified activities |
| Exceptions | Open corrections, notices and missing records | Named owner for each transferred or retained item |
The reviewer confirms which permissions continue, change or end under the agency's actual rules. A provider switch does not mean registrations automatically transfer, that every state requires re-registration, or that all old authority should end immediately. Written scope and current instructions control the action.
Where two records appear to overlap, preserve both and request a professional decision. Do not assume the remedy is a new return, Form 941-X or another original W-2. Lower or equal deposit totals across different quarters do not establish a clean transition. This guide compares evidence questions and does not certify a particular provider's process, timing or result.
Practical questions
What should I compare first?
Compare the specific records, activities, named decision owners and evidence required for your situation.
Can a virtual or outsourced BPO team make the tax decisions?
The administrative scope described here does not include tax advice, signing, filing, payments or agency representation. Confirm any separate professional service and authority.
Do payroll software names establish capability?
No. ADP, Paychex, Paylocity, QuickBooks, UKG, Workday and Gusto identify possible source systems. Verify the actual product functions and permitted access for the engagement.
Scope
This is general information, not tax or legal advice. Official sources support the limited distinctions below, not market-wide provider capabilities or commercial terms. No rankings, prices, professional review or client results are claimed.