Postby DavidTreitel » Sat Dec 15, 2018 1:50 pm
Jane - just a helpful hint. You doubtless have a PTIN (so that you can sign as preparer to avoid the IRS preparer penalty). You are hopefully also qualified in the States (as an EA or CPA). From a practical perspective, however, as you are located in the UK you will want to double check with your PII insurer that you are insured to prepare US tax returns for your client.
In terms of tax, as you are preparing an 1120-F, is this a protective 1120-F? Did the company directors have any US workdays? If so, are you also preparing their individual US tax returns (Form 1040NR) and ITIN applications (Form W-7)? Happy to act as an IRS Certifying Acceptance Agent for ITIN applications if needed.