TaxStone Services
Complex tax.
Clear solutions.
Federal returns, foreign asset reporting, treaty planning, expatriation, and business tax — grouped by the situation that triggers them. We read the footnotes, parse the exceptions, and make the rules work for you.
What we offer.
Built for Americans in the UK. From annual returns to complex cross-border planning, we handle every layer of your US tax obligations so you stay compliant, pay only what you owe, and never lose sleep over the IRS.
- Form 1040 — US resident return for citizens & Green Card holders abroad→
- Form 1040NR — non-resident return for US-source income→
- Form 1040X — amended returns to fix errors or claim missed credits→
- Foreign Earned Income Exclusion (Form 2555) — exclude up to ~$126k→
- Foreign Tax Credits (Form 1116) — offset UK tax against US liability→
- Treaty positions (Form 8833) under the US-UK double tax treaty→
All categories
Ten categories. One filing relationship.
Pick the situation that triggered the work — we’ll fork into the specific forms from there. Most engagements span at least two categories; the fee quote covers all of them.
60+
US tax forms covered end-to-end
10
service categories — one stop for cross-border filings
Fixed
fees, agreed before any work begins
EA + ACCA
dual-qualified to act in the US and UK
What every engagement gets
The non-negotiables, regardless of category.
Pricing, scope, and how a return reads when it lands at the IRS — these are the things we hold steady across every engagement, whether you’re filing a single 1040 or unpicking a decade of missed disclosures.
- A fee quote before any work starts — no open-ended hourly billing
- Plain-English commentary on every position taken on your return
- IRS Enrolled Agent representation on any notice or audit that follows
- Carry-forwards and elections tracked year on year, not re-discovered each season
Need help choosing the right service?
Send your situation and we’ll shortlist the filings that actually apply to you.