So, that’s it. You walked into the U.S. Embassy in London, answered the questions, signed the oath, and handed over your passport for good. Maybe you felt a little weird watching them take it away. Or maybe you felt nothing but relief. Either way, you’re now officially no longer a U.S. citizen.
But here’s the thing: the moment you renounce isn’t the end of the road, it’s more like the middle. There’s still a bit of unfinished business with the IRS, and a few more forms before you can truly say you’re free.
You’re No Longer a “U.S. Person” (Which Matters More Than It Sounds)
First off: you’re not just a non-citizen now. You’ve also shed the label of U.S. person, which, for tax purposes, is kind of a bigger deal. That designation is what tied you to things like FATCA, FBAR, and those awkward conversations with your UK bank about why you still have to report to the IRS.
So what does that mean in practical terms?
- No more 1040s or FBARs.
- No more reporting worldwide income to the IRS.
- No more explaining to HSBC why you need special tax forms.
That’s the upside. The downside? You’re not totally done yet. There’s still one last round of paperwork.
You Still Owe a Final U.S. Tax Return
This catches a lot of people off guard. Renouncing doesn’t mean you skip your taxes that year, it just means you’re filing as a part-citizen, part-nonresident. Yes, it’s as messy as it sounds.
You’ll need to file a dual-status return, which includes:
- A regular Form 1040 covering January 1st to the day before your renunciation, and
- A Form 1040-NR for the rest of the year.
And Form 8854. This is the “exit form” where you declare your net worth, confirm you’re no longer a U.S. taxpayer, and swear you were tax-compliant for the five previous years.
If you don’t file it? The IRS can pretend you never left, which defeats the point entirely.
The Exit Tax: Will You Get Hit?
Here’s where things get more… annoying. If you’re considered a “covered expatriate“, you might owe an exit tax. Basically, you pay tax as if you sold all your stuff the day before you renounced. Even if you didn’t sell anything.
You’re “covered” in 2025 if:
- Your net worth was over $2 million USD,
- Your average annual tax liability for the last five years was over $206,000,
- Or you weren’t fully tax-compliant for the last five years.
That means your UK home, your pension, even shares you’ve held for years might be treated like they were sold. Yes, the U.S. taxes theoretical money. Welcome to the IRS’s imagination.
Some people get around it. If you were born with dual citizenship and lived most of your life outside the U.S., or if you’re under 18.5, you might be exempt, but you still need to file Form 8854 to claim it.
What Happens to Your U.S. Accounts?
Now that you’re not a U.S. citizen, some American banks may decide they don’t want to deal with you anymore. That’s not personal, it’s compliance.
A few things to know:
- Some U.S. banks may freeze or shut down accounts held by non-U.S. persons.
- Your FATCA status will need to be updated with any foreign (UK) banks you use.
- You’re finally free of FBAR filing, which feels like a small but satisfying win.
- If you still have a 401(k) or IRA in the U.S., you’ll be taxed as a nonresident alien, usually 30% withholding on distributions, unless the S.-UK tax treaty helps you out.
You might want to talk to a cross-border advisor before touching anything. There are treaty elections and forms you can use to reduce that withholding, but you have to do it right.
Does the UK Care?
Not particularly. As long as you’re still a UK tax resident, Her Majesty’s Revenue and Customs (HMRC) doesn’t really care whether or not you’re still American.
But there are a few practical things:
- Update your tax records if you previously reported as a U.S. citizen.
- Revisit your estate planning, especially if you still own property or investments in the U.S.
- And for the love of god, don’t lose your Certificate of Loss of Nationality (CLN). It’s your proof of non-citizenship. Banks might ask for it. Visa officers too. It’s a one-page paper, but it holds power.
A Few Final Thoughts
Renouncing isn’t for everyone. Some people do it for tax reasons. Some are just tired of the hassle. Some are making a statement. Whatever your reason, it’s not a decision made lightly and it doesn’t erase your connection to the U.S. entirely. It just changes the terms.
And yeah, the paperwork is tedious. The rules are confusing. But once you’re through this last stretch, things genuinely do get simpler. No more tax duplications. No more conflicting systems. No more waking up in a cold sweat wondering if you missed an FBAR deadline.
If you’re in the thick of it and unsure what to do next, especially with Form 8854 or your dual-status return, it’s worth talking to someone who knows how this dance works. Not a giant firm. Expat Tax Online actually deals with these filings for real people,
You’ve already done the hard part. Now it’s just about finishing it cleanly.
