Payroll Processing Services that pay your people correctly, on time, every time
End-to-end outsourced payroll management - payroll runs, statutory withholdings, quarterly tax forms, year-end W-2s and 1099s, and benefits administration across every location you operate in.
What's included
A complete, senior-reviewed payroll engagement - scoped to your volume and your stack.
Payroll runs
Scheduled processing for salaried, hourly, and contractor payrolls.
Withholdings & filings
Federal and state withholdings, 941 & 940 quarterly and annual forms.
W-2s & 1099s
Year-end forms prepared, validated, and distributed on schedule.
Benefits administration
Deductions, employer contributions, and reconciliations to providers.
Multi-state & multi-entity
Consistent payroll across states, entities, and locations.
Payroll reconciliation
Every run tied back to the general ledger and tax liabilities.
Results our clients count on
Real numbers from how we run engagements - not adjectives.
Why teams choose DiligenceOS for payroll
Zero missed deadlines
Filing calendars and reminders managed for you across jurisdictions.
Platform expertise
ADP, Gusto, Paylocity, Intuit Payroll, and more - we work in your system.
One team for payroll + books
Payroll entries land in the ledger reconciled, not as a mystery lump.
“We run payroll in four states with three pay schedules. Since moving it to DiligenceOS we have not missed a single filing date.”
Frequently asked questions
Can you handle multi-state payroll?
Yes - multi-state and multi-entity payroll is a core part of our work, including state registrations tracking, local withholdings, and separate filing calendars per jurisdiction.
Which payroll platforms do you support?
ADP, Gusto, Paylocity, Intuit/QuickBooks Payroll, and most major providers. We process inside your existing platform, so you keep control of the account.
What happens if a filing is wrong or late?
Every payroll run is reconciled and reviewed by a second person before filing. In the rare case of an error, we correct and refile immediately and cover penalty exposure caused by our work.
Get a fixed quote for payroll
A free 30-minute call with a senior accountant: we review how it runs today, estimate your savings, and give you a clear plan - whether or not we work together.