The Global Yield Map: What Your ISA Really Keeps

Unknown Speaker

Your ISA holds stocks from five different countries. Each one takes a different tax cut before you see a penny. Some take 15%. One takes 35%. And one? Zero.

Sophie

So which countries are costing you the most -- and when does a UK stock actually beat a US blue-chip? Let's run the numbers.

Unknown Speaker

Welcome to Net Worth It -- the UK dividend investing podcast that shows you what you actually keep. I'm Matt.

Sophie

And I'm Sophie. This podcast is for educational and informational purposes only. It does not constitute financial advice. We are not regulated by the Financial Conduct Authority. The value of investments can fall as well as rise, and you may get back less than you invest. Past performance does not guarantee future results. Always do your own research and consider seeking advice from a qualified, FCA-regulated financial adviser.

Unknown Speaker

Last episode we looked at yield traps -- when a 10% yield becomes zero. Today we're going wider: what happens across your entire ISA when you hold stocks from different countries? Because every country has a different tax bill attached.

Sophie

The global yield map. Let's draw it.

Unknown Speaker

Right, so after Episode One, I know US stocks cost me more than they look. The 4% yield that's really 3.4% after withholding tax and FX fees. But I've got other stocks too. Nestle -- that's Swiss. SAP -- German. TotalEnergies -- French. What's happening there?

Sophie

Different countries, different treaties, different rates. Some are better than the US. Some are worse. And one is completely free.

Unknown Speaker

Which one's free?

Sophie

UK stocks. If you're holding UK companies in your ISA, there's no withholding tax and no FX conversion. A 5% yield is actually 5% net.

Unknown Speaker

So that's the baseline.

Sophie

Exactly. That's what everything else gets measured against. And once you see the difference, you start to realise why geography matters as much as the yield number on your screen.

Unknown Speaker

Okay, walk me through it. Let's say I'm looking at a US stock yielding 4.5% and a UK stock yielding just 4%. The US stock looks better on paper, right?

Sophie

It does. But after 15% withholding tax and FX fees, that 4.5% US stock nets you about 3.8%. The UK stock at 4%? It nets you 4%. The lower-yielding UK stock actually pays you more.

Unknown Speaker

And that's just the US. What about Europe?

Sophie

That's where it gets interesting. Some European countries have lower withholding tax than the US. Some have higher. Let's map it out.

Sophie

Let's start with the favourites. France has one of the lowest withholding tax rates in Europe for UK investors. The treaty cap is 15%, but France actually applies a domestic rate of 12.8%. So a French stock like TotalEnergies, which currently yields around 5.4%, nets you about 4.7% after French withholding tax and FX fees.

Unknown Speaker

So that's better than the US -- but still worse than a UK stock at the same gross yield.

Sophie

Right. Now let's go the other direction. Switzerland.

Unknown Speaker

I've got Nestle. What's the damage?

Sophie

Swiss stocks start with a statutory withholding tax of 35%. Under the UK-Switzerland treaty, you're entitled to a reduced rate of 15% -- the same as the US. But here's the catch: to get that reduced rate, you have to manually reclaim the extra 20%.

Unknown Speaker

Manually? What does that involve?

Sophie

You need to file a form with the Swiss Federal Tax Administration, provide dividend vouchers from your broker, and get an HMRC Certificate of Residence. The timeline is typically 6 to 12 months, and you've got three years from the end of the calendar year to submit. Most investors only bother if the reclaimable amount is worth the effort -- say, over 500 pounds.

Unknown Speaker

Blimey. So if I don't reclaim, I'm stuck with the full 35%?

Sophie

Correct. Which turns a Nestle yield of around 3.9% into roughly 2.5% net. But if you do reclaim, you get back to about 3.3% -- similar to a US stock.

Unknown Speaker

And Germany?

Sophie

Germany initially withholds about 26%, but the treaty rate for UK investors is 15%. You can reclaim the difference, though it's another manual process. Once you factor in the 15% withholding and FX fees, a German stock like Allianz at 4% gross nets you about 3.4%.

Unknown Speaker

So most of Europe -- aside from France -- lands you at roughly the same place as the US. 15% withholding, give or take.

Sophie

Pretty much. The US, Switzerland if you reclaim, Germany if you reclaim, Netherlands at 10% -- they all cluster around that 15% drag. France is the outlier at 12.8%. And the UK is zero.

Unknown Speaker

Right. So how do I make sense of all this when I'm looking at my portfolio? I can't run this calculation in my head every time I see a yield.

Sophie

That's where the breakeven yield rule comes in. It's a simple question: how much does a foreign stock need to yield to match what a UK stock gives me net?

Unknown Speaker

Go on.

Sophie

Let's say you're comparing a UK bank yielding 5% with a US stock. The UK bank nets you 5%. For the US stock to match that after 15% withholding tax and 0.15% FX fees, it needs to yield about 5.9% gross.

Unknown Speaker

So a 6% US stock is roughly equivalent to a 5% UK stock.

Sophie

Exactly. That's your cost of admission to the US market -- about one percentage point of extra yield just to break even. For Switzerland, if you don't reclaim, the breakeven is even higher -- a Swiss stock needs to yield about 7.7% gross to match a UK stock at 5%.

Unknown Speaker

That's brutal.

Sophie

It is. Which is why most investors either reclaim the Swiss tax or avoid Swiss stocks in their ISA altogether.

Unknown Speaker

So in practice, if I want diversification -- US stocks, European stocks -- I'm paying roughly a one percentage point penalty on yield compared to staying all-UK.

Sophie

Correct. And that brings us to the diversification trade-off.

Unknown Speaker

Because here's the thing -- I don't want to go all-UK just to dodge withholding tax. The FTSE 100 is heavily weighted to banks and energy. No US tech, no European pharma innovation. I want diversification. But I also want to know what it's costing me.

Sophie

And that's exactly what Nestor shows you. In the portfolio view, you can see the net yield for every holding -- after withholding tax and FX fees are applied based on the country of domicile. So you can see at a glance which countries are costing you the most.

Unknown Speaker

And I can compare that against a UK-only alternative.

Sophie

Right. You might see that your blended portfolio -- say, 50% UK, 30% US, 20% Europe -- nets you 3.8% overall. Whereas a UK-only portfolio at the same gross yield would net you 4.2%. That 0.4% difference is the price you're paying for diversification.

Unknown Speaker

So I can decide if it's worth it.

Sophie

Exactly. It's not about avoiding foreign stocks -- it's about knowing what they cost you and making an informed choice. Some investors value the diversification and accept the drag. Others prefer to stay UK-heavy and maximise net income. Nestor just makes the cost visible.

Unknown Speaker

And the portfolio breakdown shows me the geographic split.

Sophie

Yes. You can see your exposure by country, by sector, and by net yield. If you're heavily concentrated in one region, you'll know. If one country is dragging your net income down disproportionately, you'll see it.

Sophie

So here's the one thing to take away from today: every country has a different price tag on your dividends. The UK is zero. The US is 15%. Switzerland is 35% unless you reclaim. France is 12.8%. Germany is 15% if you reclaim.

Unknown Speaker

And knowing the cost doesn't mean avoiding foreign stocks.

Sophie

Exactly. It means making informed choices about what diversification is worth to you. Because the highest gross yield isn't always the highest net income -- and geography is the hidden variable your broker never shows you.

Unknown Speaker

If you want to see the net yield for every holding in your portfolio -- broken down by country, with withholding tax and FX fees already calculated -- check out Nestor. The link's in the show notes.

Sophie

And just a reminder: the FTSE 100 is concentrated in a few sectors. Financials make up about 26% of the index, energy another 9%, and the top 10 holdings account for nearly half the index. So a UK-only strategy avoids withholding tax but gives you heavy exposure to banks, oil, and mining -- limited access to US tech growth or European pharma innovation. The diversification trade-off is real.

Unknown Speaker

Next episode: you know what different countries cost you. But where should each stock actually live -- ISA or GIA? We're breaking down the ISA versus GIA decision, stock by stock. That's Tuesday.

Sophie

Remember, nothing in this episode is personal financial advice. For decisions about your own portfolio, consider consulting an FCA-regulated adviser.

Unknown Speaker

Thanks for listening. See you Tuesday.

Sophie

See you then.