Cashflow planning for US IRAs when an expat or retiring outside the USA. Be tax optimised (don’t pay more tax that you need too), avoid high withholding taxes, and have a plan into retirement. We can forecast and show how income streams are “sequenced” to keep you in the lowest possible global tax bracket and cash when you need it.
Cashflow and tax planning for US Pesions
Financial planning shouldn’t be a “black box.” Just as the millstones in our heritage balancing precision tools with power to create a refined product, our approach to cross-border wealth management focuses on simplifying complexity. We don’t just “handle” your US and UK assets; we integrate them into a single, cohesive framework where every decision in one country is balanced against the rules of the other.
Why this is hard to get right
Most advisers — whether UK-based or US-based — are not equipped to model this correctly.
A UK independent financial adviser typically knows PAYE, ISAs, SIPPs, and UK income tax in depth. They have rarely encountered a Form 1040, a Required Minimum Distribution schedule, or a Roth conversion calculation. The IRS is not their world.
A US financial adviser or CPA understands the IRS framework well. But they often have limited working knowledge of HMRC’s treatment of US pension income, the UK Personal Allowance taper, or how a Foreign Tax Credit interacts with a UK self-assessment return.
The result is that most US persons in the UK end up with:
- A US adviser who handles the IRS side without knowing the UK tax consequences
- A UK adviser who knows they’re out of their depth and refers the American parts elsewhere
- A CPA filing the 1040 without a joined-up financial plan behind it
The gap between these advisers is where costly mistakes happen. Getting IRA distribution timing wrong, missing the Roth conversion window, or misapplying the treaty can mean significantly higher tax over a retirement — not just a one-year problem.
What Edale does differently seeing tax optimisation, investments and product use as a whole
Edale has specialised in US/UK cross-border financial planning since it’s establishment. As an FCA-authorised (Reference No. 812332) and work exclusively with clients who have financial lives in multiple countries — US citizens in the UK, dual citizens, expats, and Green Card holders.
We don’t refer the American parts, or in that fact any parts, out. We handle all sides.
We own in-house own IRA/Roth Cashflow Modeller — because no off-the-shelf planning tool could do this calculation correctly for the variety of clients, scenarios and plans we present. Standard cashflow software doesn’t know what Article 17 is, let alone how the March 2025 guidance changes it.
The IRA/Roth Cashflow Modeller — how it works
Edale software is a proprietary tool that projects your IRA and Roth balances from your current age to your life expectancy, applying both US and UK tax rules simultaneously.
Here’s what it models:
- US bracket-fill conversion strategy
- Each year, the tool calculates how much of your Traditional IRA to convert to Roth in order to fill your chosen US federal tax bracket — typically the 22% or 24% bracket — without tipping into the next one. It does this across every year of your projection, accounting for your other income sources, the standard deduction, and annual growth.
- Four treaty treatment scenarios
- In light of the March 2025 guidance, the tool models your IRA distributions under four treaty positions:
- 1. UK-exempt (the pre-March 2025 assumption — now contested)
- 2. Full UK income tax applies
- 3. Split liability between the US and UK
- 4. A custom effective rate agreed between you and your tax advisers
- This matters because the retrospective application of HMRC’s new position is still legally unresolved. Different clients may be in different positions depending on their history, and the optimal strategy depends on which treatment applies to you.
- In light of the March 2025 guidance, the tool models your IRA distributions under four treaty positions:
- Foreign Tax Credit modelling
- The tool shows you the net tax outcome under each scenario — US federal tax paid, UK tax applied, foreign tax credit offset, and the remaining UK liability. For additional rate taxpayers, the FTC gap can be substantial and is worth understanding before you take any distributions.
- Required Minimum Distributions
- Using IRS Uniform Life Tables and the age-73 RMD start age under SECURE 2.0, the tool calculates your RMDs year by year from when they begin. You can see exactly which years carry the highest combined tax burden — and where voluntary conversions before age 73 create room for better outcomes.
- Scenario comparison
- The tool runs multiple strategies side by side — bracket-fill at different levels, fixed annual conversion, full conversion over a set period, and no conversion as a baseline — and compares them on total Roth value at retirement, lifetime tax cost, net after-tax income, and remaining estate value.
Every model produces a full report showing the conversion schedule, distribution projections, key figures by year, and the scenario comparison. It’s designed to be shared with your US CPA so they can see the plan behind the numbers before they file.
Who is US IRA pension taxation and cashflow planning for
This service is for US persons in the UK who:
- Hold a Traditional IRA and haven’t yet decided how or when to draw it down
- People considering or have already begun a Roth conversion and want to know if the strategy still makes sense under the new HMRC position
- Are approaching age 73 and need to understand RMD obligations in a UK tax context
- Had a financial plan built before March 2025 and want to check whether it still holds
- Have a US CPA but no UK adviser co-ordinating with them on the treaty and cashflow side
There is no minimum portfolio size. If the situation is complex, we want to help.
What a conversation with Edale looks like
The first step is a free initial consultation — no obligation, no fees. We’ll look at your US retirement accounts, your UK tax position, and what the March 2025 guidance means for your specific situation.
If it makes sense to build a model, we’ll do that as part of the advice process. The model isn’t a generic output — it’s built around your actual balances, your income, your filing status, and the treaty position that applies to you.
We work alongside your US CPA or tax accountants, not instead of them. Plans come with the treaty position clearly stated, tax estimation, and modelled — so your CPA is confirming a plan that was designed collaboratively, not discovering tax consequences after the fact.
HMRC made US Pension cash flow planning critical from 2025
If you are a US citizen or dual citizen living in the UK with an IRA, the rules changed in March 2025. HMRC issued updated guidance that reverses a widely held assumption about how IRA distributions are taxed in the UK — and the impact on retirement planning is significant.
What changed in March 2025
On 12th March 2025, HMRC published updated guidance on how lump sum distributions from US pension plans — including Traditional IRAs — are taxed for UK residents.
For over 20 years, the standard position was that lump sum IRA distributions paid to a UK resident were fully exempt from UK income tax under Article 17(2) of the US–UK Double Taxation Agreement. Most advisers, CPAs, and clients operated on that basis.
HMRC now says that is wrong
HMRC is invoking the saving clause — Article 1(4) of the treaty — to override the Article 17(2) exemption. The effect is that the UK can now tax IRA lump sum distributions received by UK residents, with a foreign tax credit available for US taxes already paid. Because the UK’s additional rate (45%) is higher than the US top federal rate (37%), and because foreign tax credits rarely cover the full gap, many US persons in the UK now face an estimated 8–11% uplift in their global tax on IRA distributions compared to what their plan assumed.
What this means in practice:
- Lump sum IRA withdrawals that were considered UK tax-free may now be subject to UK income tax at 20%, 40%, or 45% depending on your income
- The foreign tax credit from US federal tax paid will reduce the UK bill but not eliminate it for most higher earners
- The definition of “lump sum” now matters significantly — HMRC’s guidance distinguishes between lump sums and regular income-style distributions, and now there is no line between them.
- Whether the new treatment applies retrospectively is still not resolved
- Roth conversion strategy changes materially under the new rules — in many cases, converting sooner rather than later becomes more compelling.
- If your existing plan was built on the pre-March 2025 assumption, it may no longer reflect your actual tax position.