◉ 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.
◉ Who this is for
- •US C-Corps with UK operations
- •UK-owned US C-Corps
✓ What you get
- ✓Form 1120 preparation
- ✓State return coordination
- ✓Transfer-pricing review where applicable
At a glance
- Key forms
- 1120
- Category
- Business Tax
- Turnaround
- 2–3 weeks once documents are complete
- Filed by
- ACCA-qualified IRS Enrolled Agent
Our approach
US business filings that fit the UK reality.
A US LLC, partnership or corporation owned or run from the UK sits between two systems that rarely line up — distributions, basis, and the credit for UK tax paid all have to be reconciled, and a US corporation with foreign shareholders brings its own reporting (Forms 5472, 1120-F) that is easy to miss.
We prepare the US business return with the UK side in view from the start, track basis and distributions so they are not taxed twice, and make sure any inbound-reporting obligations are met rather than discovered in an IRS notice.
- US and UK treatment of distributions and basis reconciled, not assumed
- Owner-level and entity-level filings prepared as one coherent set
- Inbound reporting (5472 / 1120-F) checked for US entities with foreign owners
Our process
How we handle your filing
Four steps from first email to filed return. Fixed fee confirmed in writing before any work begins.
01
Intake
Send us your situation by email or the enquiry form. We come back with the questions we need answered — every source of income for the year, filing history, accounts and entities — and a tailored document list.
02
Review
We analyse your position, flag any cross-border risks, and confirm the scope and fixed fee in writing before any work starts.
03
Prepare
Draft returns and schedules are prepared with plain-English commentary on key positions for your review.
04
File
You sign electronically; we e-file with the IRS / FinCEN and send you the acceptance confirmations for your records.
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.
Prices are indicative starting points and exclude UK VAT, which applies to UK-resident clients only. We quote in writing once we have confirmed every source of income and your filing history for the years involved.
FAQs
Common questions
Related services
Others in Business Tax
LLC tax returns
Federal returns for single- and multi-member LLCs — reported on Schedule C or Form 1065 depending on structure and election.
Learn more →
Partnership returns (Form 1065, K-1)
US partnership returns including K-1s for each partner, with attention to international allocations.
Learn more →
S-Corporation returns
S-Corp filings (Form 1120-S) and shareholder K-1s — including cross-border shareholder considerations.
Learn more →
Who this is for
Situations where this filing usually applies
Ready to get this filed?
Tell us your situation and we’ll reply by email within 2 working days with our questions, then a written scope, fixed fee and document list.