Tax Stone

Pensions & Investments

ISAs & UK funds (PFIC)

ISAs are not tax-free for US persons. Unit trusts, OEICs, and investment funds inside ISAs are typically PFICs.

Overview

Why this filing matters

ISAs are not tax-free for US persons. Unit trusts, OEICs, and investment funds inside ISAs are typically PFICs.

Note — ISAs reportable as PFICs.

◉ Who this is for

  • US persons with stocks & shares ISAs
  • Clients with UK fund-based investments

✓ What you get

  • Per-holding PFIC analysis
  • Election strategy (MTM vs. QEF)
  • Annual 8621 filings

At a glance

Key forms
8621
Turnaround
2–3 weeks once documents are complete
Filed by
ACCA-qualified IRS Enrolled Agent

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
ISAs & UK funds (PFIC)

Our process

How we handle your filing

Four steps from first call to filed return. Fixed fee confirmed before any work begins.

  1. 01

    Intake

    30-minute scoping call. We confirm your situation, required filings, and send a tailored document list.

  2. 02

    Review

    We analyse your position, flag any cross-border risks, and confirm the scope and fee before any work starts.

  3. 03

    Prepare

    Draft returns and schedules are prepared with plain-English commentary on key positions for your review.

  4. 04

    File

    E-file with the IRS / FinCEN, send confirmations, and handle any follow-up notices or questions.

Pricing

Fixed fees — no surprises

ISA/PFIC strategy review: £350 + VAT. Annual PFIC reporting (Form 8621) is £150 + VAT per holding, with volume discounts for multiple funds.

FAQs

Common questions

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.