Who this is for
- US C-Corps with UK operations
- UK-owned US C-Corps
Business Tax
C-Corporation returns
C-Corp compliance (Form 1120) for cross-border businesses, including state filings where relevant.
Overview
Why this filing matters
C-Corp compliance (Form 1120) for cross-border businesses, including state filings where relevant.
Note — C-Corp compliance for cross-border businesses.
What you get
- Form 1120 preparation
- State return coordination
- Transfer-pricing review where applicable
Our approach
Built for the cross-border edge cases.
Most US-UK filings fail the same way: a treaty position that wasn’t disclosed, a foreign account that slipped under FBAR thresholds, a PFIC election filed in the wrong year, a carry-forward not tracked from one preparer to the next. The cost of any single one of those is rarely catastrophic on its own — it’s the compounding over multiple filing seasons that quietly turns a clean tax life into a six-figure remediation project.
We start every engagement by looking at the edge cases first — the elections, the disclosures, the carry-forwards, the side-effects on next year’s return — and only then turn to the routine line items. The result is a filing that reads cleanly to anyone who picks it up next: another preparer, the IRS, or a successor in your own business.
- Position memo on every meaningful election, with the reasoning written down for the next return
- Carry-forwards (FTC, capital losses, PFIC basis) tracked year-on-year so nothing expires unused
- Plain-English commentary on every position taken — the kind that makes a future audit a non-event
Our process
How we handle your c-corporation returns
Four steps from first call to filed return. Fixed fee confirmed before any work begins.
- 01
Intake
30-minute scoping call. We confirm your situation, required filings, and send a tailored document list.
- 02
Review
We analyse your position, flag any cross-border risks, and confirm the scope and fee before any work starts.
- 03
Prepare
Draft returns and schedules are prepared with plain-English commentary on key positions for your review.
- 04
File
E-file with the IRS / FinCEN, send confirmations, and handle any follow-up notices or questions.
Pricing
Fixed fees — no surprises
C-Corp return (Form 1120): from £1,800 + VAT federal only. State returns, international schedules (foreign shareholders, controlled-group analysis, transfer pricing) are priced after scoping.
FAQs
Common questions about C-Corporation returns
Is a C-Corp ever better than an S-Corp for expats?
Yes — when shareholders include non-US persons (S-Corp isn't available), when retaining earnings in the corporation makes long-term sense, or when seeking VC investment (institutional investors typically require C-Corp).
What's the US corporate tax rate?
21% federal flat rate since 2017. State corporate taxes (0–12% depending on the state) stack on top, giving effective rates around 25–28% in most jurisdictions.
Are C-Corps subject to double taxation?
Yes — the corporation pays 21% federal tax on profits, and shareholders pay tax on dividends when distributed. The US-UK treaty reduces dividend withholding to 5% or 15% for qualifying UK shareholders with proper documentation.
Do UK shareholders get K-1s from a C-Corp?
No — C-Corps don't issue K-1s (that's a partnership concept). UK shareholders receive dividends reported on Form 1099-DIV (US addresses) or with withholding and 1042-S (non-US addresses).
Ready to get this filed?
Tell us your situation and we'll confirm scope, a fixed fee, and the documents we need — usually within one business day.