3.5M
employees served
1.1M
filings processed
<0.5%
quarterly rejection rate
Built to keep you compliant, accurate, and informed

Stay ahead of regulations with ease
Federal, state, and local tax requirements shift constantly. OneSourve Virtual (OSV) monitors every change and applies updates inside your Workday tenant, so your filings stay current without your team chasing the latest rules.


Ensure accuracy and avoid costly penalties
Workday calculates and withholds. OSV files, pays, and reconciles. Our named tax specialists handle federal, state, and local payroll tax filings, W-2s, and amendments with an agency rejection rate of less than half a percent.

Real-time visibility into every filing
Track every payroll tax filing and payment in real time through OSVSphere. Your team sees every deadline, filing status, and flagged issue as it happens, so we're working from the same view and catching problems early.


The tech behind cleaner payroll tax filings
Our proprietary tax portal runs over 50 data audit points before anything gets submitted, catching rate mismatches, invalid SSNs, negative wages, and foreign address issues before they become rejections. When something bounces back, we work on it during the filing period and refile the corrected data. The result: a quarterly rejection rate under half a percent.
Why Workday customers choose OSV
“I don’t have to worry about the level of expertise. I know that it exists at OSV and honestly, I turn that risk over to the OSV organization to figure out how to get our taxes paid for and processed and backups and everything. And that is an OSV problem.”
Senior Director of Global Payroll, Procore
“Your tax side is huge ... It’s nice to know that I do my piece and walk away, and then I might hear back a little bit of, ‘Hey, we need this,’ or ‘Hey, we need that.’ I will never in my career go without a company that handles the tax side ... If I had to deal with taxes on my own and garnishment, my team would have to triple.”
Senior Payroll Manager, Aptive
“I don’t see HKS ever being able to do what OSV has been able to do for us with federal, state, and local taxes. If we had to do it in-house, we would probably have to increase payroll team headcount.”
Global Payroll Manager, HKS
Frequently asked questions
What levels of payroll support does OSV offer?
OSV’s payroll services run across a spectrum of support tiers, from light back-office help to full end-to-end management. You can outsource core payroll processing, payroll tax filing, and wage garnishment administration. Choose any combination or bundle them all together, with everything running inside your Workday tenant.
What does it mean to run payroll "in-tenant"?
“In-tenant" means OSV's payroll team works directly within your live Workday instance — the same system of record your HR and finance teams already use — rather than pulling your data into a separate payroll platform. When OSV processes payroll, you see the transactions in real time in Workday, not a mirrored or delayed version.
If we outsource payroll, how do we stay in control?
You maintain full approval authority and visibility — OSV doesn’t execute anything without your sign-off, and everything happens in your Workday tenant, so you see it in real time. That means you’re accountable for payroll outcomes without drowning in the manual execution.
If we add employees or complexity, will payroll processing accuracy or speed decline?
No. OSV is built to absorb growth, whether that’s new hires, new entities, new locations, or added complexity. Payroll doesn’t break every time you expand because it’s the same infrastructure behind the 3M+ employees OSV already serves across its customer base.
How does OSV handle multi-state and multi-jurisdiction payroll tax?
OSV's payroll tax specialists manage federal, state, and local filings on your behalf, with automated rate updates and reconciliation built into the process. That's part of how OSV processes $8.3B in tax annually without your team tracking every jurisdiction's rules by hand. You keep full visibility and control even as the filing work moves off your plate.
Who’s responsible if a garnishment order is missed or processed incorrectly?
Garnishment errors carry real legal and financial exposure, so OSV doesn’t fold this into general payroll processing. It’s handled as its own dedicated services, staffed by payroll specialists trained specifically in garnishment compliance from initial receipt through the full lifecycle of the order. That specialized handling is what keeps the compliance risk off your team’s plate in the first place.



