The Savvy Investor's Guide

Tax-smart investing for US, UK and expat readers


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Plain-English Investment Education

Investment education for thinking investors

Comprehensive UK and US guides on retirement, ISAs, SIPPs, IRAs, tax-efficient investing, and property. Built around primary sources, not soundbites. Edited by a real human, not a content farm.

Edited by James Heppe-Smith · Educational publisher, not authorised or regulated by the FCA (UK) or SEC (US).

The pieces we think are worth your half-hour right now: two UK, two cross-border for readers with both US and UK exposure, and two US-specific.

UK Mortgages

Mortgage rate cuts vs the 6% reality

Santander, Halifax, BM Solutions and Nationwide all cut rates this week. So why is the average 2-year fix still around 5.78%? UK gilt yields hit 17-year highs and that is where the answer lives.

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UK Consumer Rights

Should you use a CMC for your car finance claim?

The FCA’s 7 May review flagged misleading ads, unfair exit fees and up to 21 CMCs chasing the same claim. The free DIY route through the lender and FOS works fine. Here is what to do.

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US & UK Tax

Tax-loss harvesting in the US and UK

Crystallise capital losses without tripping the US wash-sale rule or the UK 30-day bed-and-breakfasting restriction. 2026 figures, the ETF pairs that actually work, the ten mistakes that quietly destroy most harvesters’ tax benefit.

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US & UK Property

Property investment for beginners

First strategy with limited capital. The numbers that determine whether a deal pays. Financing routes. Managing what you buy. Updated for the OBBBA tax framing in the US and the current UK mortgage rate environment.

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US Retirement

The complete 401(k) optimisation playbook

$35,750 contribution limits for ages 60-63, mega backdoor Roth at $72,000, Traditional vs Roth, mandatory Roth catch-up for $150k+ earners, expense ratios, and what to do at job changes. Built to add six figures to lifetime retirement savings.

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US Retirement

Backdoor Roth IRA: step-by-step

Income too high for a direct Roth IRA? The backdoor opens the door for high earners at $7,500 a year in 2026 ($8,600 if you are 50+). Fidelity, Vanguard and Schwab walkthroughs. Pro-rata math. Form 8606 line by line.

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Browse by topic

Six topic areas where the site has real depth. Each card opens that category’s full archive.

Retirement Planning

FIRE planning, Roth conversions, withdrawal rates, healthcare bridges, and the maths behind retiring on your own timeline.

12 articles →

Tax Strategy

Tax-loss harvesting, asset location, Roth conversions, capital gains timing, and the IRS/HMRC rules that move real money.

9 articles →

Investment Strategies

Index funds vs active, three-fund portfolios, factor investing, asset allocation by age, and the strategies that hold up across decades.

11 articles →

IRAs & Tax-Advantaged Accounts

Traditional vs Roth, backdoor and mega-backdoor Roth, HSA investing, 401(k) optimisation, 529-to-Roth rollovers under SECURE 2.0.

8 articles →

Property Investment

Residential vs commercial, BTL economics, getting started with limited capital, the deal maths that determines whether a property pays.

7 articles →

UK Investing

ISAs, SIPPs, mortgage and gilt-yield context, FCA regulation news, and the UK-specific tax-efficient investing playbook.

Growing →
James Heppe-Smith, founder and editor of The Savvy Investor's Guide

Meet the editor

James Heppe-Smith

Founder and editor of The Savvy Investor’s Guide and Pension Plain. Writes about UK and US personal finance, retirement planning, tax-efficient investing, and property — for the kind of reader who wants the working, not just the conclusion.

Not a financial adviser. The Savvy Investor’s Guide is an educational publisher. We are not authorised or regulated by the FCA (UK) or the SEC (US), and our content does not constitute personalised financial, investment, tax, or legal advice. We cite primary sources, show the maths, and explain trade-offs. We don’t tell you what to do.

Recent articles

More from the archives.

UK Crypto Regulation

The FCA’s 2026-2027 crypto timeline

Full regime live 25 October 2027. CP26/13 closes 3 June. FCA stakeholder webinar 21 May. Authorisations gateway opens 30 September 2026. Here is the full timeline for retail investors.

UK ISAs

Cash ISA Cap 2027: the £12,000 under-65 saver’s guide

From 6 April 2027 the under-65 Cash ISA limit drops from £20,000 to £12,000. The triple-whammy timeline, the cost of doing nothing, and the six-move strategy for the rest of 2026/27.

UK Estate Planning

Pension inheritance tax 2027: estate planning guide

From 6 April 2027 unspent UK pension pots fall into the IHT estate. What is changing, who is hit hardest, and the six planning moves to consider before the 2027 deadline.

Financial Independence

FIRE Movement: the complete 2026 guide

ACA subsidy cliff is back. Morningstar lifted the safe withdrawal rate to 3.9%. The IRS pushed limits higher. FI number, healthcare bridge, Roth conversion ladder, five interactive calculators.

US Retirement

529 to Roth IRA rollover: SECURE 2.0 guide

15-year rule, $35,000 lifetime cap, $7,500 annual limit, state-tax traps. Step-by-step execution to run the rollover cleanly in 2026.

All articles

Browse the full archive →

Also worth reading on Pension Plain

Our sister site covers UK public sector pension schemes in plain English. Two pieces that complement the Savvy Investor coverage.

Pension Plain

Pension inheritance tax from April 2027: what public sector members need to know

HMRC’s 11 May technical note explained for NHS, Teachers, Civil Service, AFPS, LGPS members. What is protected (the main DB pension), what is caught (AVC pots), and the new withholding-notice mechanism.

Read on Pension Plain →
Pension Plain

LGPS six megafunds: which pool is your fund in?

Border to Coast, LGPS Central, London CIV, LPP, Northern LGPS, Wales Pension Partnership. What pooling means for the £390bn LGPS, what changes in October 2026, and what (if anything) members will notice.

Read on Pension Plain →

Brand family

Also from James

Across UK public sector pensions, indie publishing, and the parent holding company.

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