The short version is that co-employment, which made payroll simple, makes ERC recovery complicated. If a Professional Employer Organization filed your quarters on an aggregate Form 941 with your share allocated on Schedule R, four problems follow — and each has a playbook.

Problem 1: You usually can’t sue for your own refund

Refund suits belong to the taxpayer that filed the return and paid the tax — the PEO. Client companies that sued the IRS directly have faced dismissal for lack of standing. The consequence is blunt: on a delayed or denied PEO-filed claim, the litigation lever must usually be pulled by the PEO or with the PEO, which converts a tax problem into a contract-management problem.

Problem 2: The information asymmetry

You may not know whether your claim was filed, for how much, or what the IRS has said — because every notice runs to the PEO. The demand list, in writing: filing confirmation with dates and per-quarter amounts, your Schedule R allocation, every piece of IRS correspondence (especially any Letter 105-C, whose two-year clock runs whether or not you’ve seen it), and the PEO’s written position on how refunds and interest pass through.

Problem 3: The PEO’s incentives are not yours

A PEO managing thousands of client claims rations its attention; your claim’s urgency is yours alone. Where cooperation stalls, the pressure points are contractual — cooperation clauses, implied covenants, and, where a PEO has received and sat on client refunds, breach-of-contract and unjust-enrichment theories against the PEO directly. Litigation-adjacent pressure usually produces movement long before trial.

Problem 4: PEO distress

A refund payable to a struggling PEO is unsecured exposure. If your PEO shows signs of distress, documentation and speed stop being best practices and become the whole strategy.

The playbook

Document the allocation now. Demand the correspondence file. Calendar any disallowance date the moment you learn it. And bring counsel in early — this is exactly the work our ERC litigation practice handles, alongside the responsibility framework and the deadlines on the refund tracker. Book a free 15-minute call — bring your PEO agreement; its cooperation clause is the first thing we’ll read.