Most firms don't set out to do expat work. A long-time client takes an assignment in Singapore, a partner's neighbor marries abroad, an entity opens a foreign subsidiary — and suddenly there's a Form 2555, a Form 1116, an FBAR, and a streamlined-filing question sitting on a desk built for domestic 1040s. The return takes four times as long as it bills for, and the risk of getting it wrong is asymmetric.
The math nobody runs
A single expat return with foreign income, a foreign tax credit, and four foreign accounts can absorb a full day of senior time once you include the research, the currency conversions, and the second-guessing. Bill it at your domestic rate and you've lost money on your most complex work. Bill it at what it actually costs and the client balks. Outsourcing breaks that bind: a fixed wholesale rate per return, a margin you set, and your senior people back on the work that scales.
Risk is the real reason
FBAR penalties start at five figures. A missed Form 8938, a mishandled PFIC, a streamlined submission filed under the wrong procedure — these are not the errors you want to discover in an exam. A desk that files thousands of these a season has seen the edge cases yours will hit once. That pattern memory is the thing you're actually buying.
You're not outsourcing the return. You're outsourcing the part of the return that keeps you up at night.
Without losing the client
The fear that stops most firms is simple: hand the work to someone else and you hand them the relationship. That's a workflow problem, not a law of nature. Done right, the client never sees the desk — the engagement letter, the portal, the invoice, and the signature all stay under your firm. What changes is only who does the preparation, and whether you can see it happening.
- The client signs your engagement letter and pays your invoice.
- The return is prepared on the same platform you'd use yourself, so you watch every step.
- An IRS-licensed EA signs, with full representation rights, behind your firm's name.
Outsourcing expat returns isn't a retreat from the work — it's a decision about which work earns its keep in your shop and which is better done by people who do only that. The firms that make the call early tend to be the ones still taking new expat clients in March.