Investing — explained properly
A growing investing library for UK investors: ETF education, an options course, pensions, account choice and tax-aware investing basics. Honest about the risks. Free.
Where to start on an investing question
This hub points you to the right guide; it does not replace the detailed ETF, options, pensions or Capital Gains Tax pages. Start with what the money is for, then open the page for the account or investment you are actually considering.
The UK ETF Library
A professional ETF section for UK investors: the deep ETF guide, selector-style compare tool, weighted builder, overlap checker, model portfolios, metric glossary, wrapper notes, and a clean split between plain equity income funds and covered call plus futures products.
The UK options course
A neutral course on exchange-traded options, for education: 26 strategies in course order across three levels, worked in pounds on ICE, FTSE 100 and US contracts, with Greeks and implied volatility, assignment and expiry, UK tax worked examples, the SA108, and five tools.
The Complete UK Pensions Guide
State, workplace and personal pensions explained from first principles. Allowances, tax relief, access rules, FSCS & PPF protection, CASS — and the changes announced for 2027, 2028 and 2029.
ETF investing carries market risk and values can fall. Options are high risk: a bought option can lose its whole premium, and some written positions can lose more than the money put in. Selling uncovered (naked) options carries theoretically unlimited loss potential. Neither guide constitutes financial advice. Ensure you fully understand any instrument before investing capital, and consult a regulated financial adviser for your personal circumstances.
New to investing? Start with these foundational ideas before diving into the full guides.
The single most important ETF decision. Acc reinvests dividends automatically — unit price grows. Dist pays dividends as cash. Inside an ISA both are equally tax-free. Outside an ISA, acc triggers "notional distribution" rules.
Read in ETF guide →Covered call ETFs write call options on what they hold and pay the premium out as income. In a rising market the calls cap the upside, so part of the distribution is paid for by giving up capital gains, and the fund's price can fall behind its underlying index over time. A distribution rate is not a return.
Read the covered-call ETF guide →A 2x ETF doesn't deliver 2x the long-term return. Daily resets mean volatility decay compounds against you. A 2x fund in a volatile sideways market can lose heavily while the underlying ends flat. These are for short-term tactical use only.
Read in ETF guide →An option's time value runs down as expiry approaches, other things being equal. A buyer pays for that time value and loses it if the price does not move far enough soon enough; a writer (covered calls, iron condors) receives it, in exchange for the risk of a move against the position.
Read in options library →Four options: an out-of-the-money call and put are written, and further out-of-the-money options are bought on each side to cap the loss. The position takes in a net credit and keeps all of it only if the price ends between the two written strikes at expiry. Four legs mean four bid-ask spreads.
Read in options library →Most retail options gains are subject to Capital Gains Tax, not Income Tax. The premium for writing a traded option is a gain when the option is written; a later buy-back or exercise changes that computation, and a lapse leaves it as it was (HMRC CG55536 and, for a buy-back, CG55545, checked 10 October 2026).
Read the worked examples →The full topic map
UK investing covers wrappers (ISA, SIPP, GIA, LISA), assets (ETFs, funds, individual stocks, gilts, bonds, alternatives), tax treatment (CGT, dividends, EIS/SEIS/VCT, crypto), and platforms. This hub maps the full territory.
Tax wrappers — ISA, SIPP, GIA, LISA
The wrapper choice typically matters more than the underlying investment for long-term returns. ISA gives tax-free growth + tax-free withdrawal. SIPP gives tax relief on the way in, taxed on the way out (with 25% tax-free). GIA is taxable but unlimited. A LISA can be opened from age 18 to 39 and used for a first home or from age 60.
- Complete UK ISA guide — all ISA types + rules
- ISA vs Pension — the lifetime trade-off
- ISA vs GIA calculator — tax savings over time
- LISA calculator — 25% government bonus
- Flexible ISA explained — withdraw and replace rules
ETFs and passive investing
Exchange-traded funds (ETFs) are the default vehicle for most UK passive investors. Key decisions: Acc vs Dist, hedged vs unhedged, fund domicile (Ireland for tax efficiency), and TER. UK Tax Drag's ETF browser covers ~168 UK-available UCITS ETFs.
- Complete UK ETF guide — the foundational explainer
- ETF compare tool — filter UK-listed ETFs and compare charges side by side
- ETF model portfolios — core + satellite templates
- ETF overlap checker — avoid double-exposure
- Global equity ETFs — VWRP, FWRG, SWDA, EXIW
- S&P 500 ETFs for UK investors — CSPX, VUAG, VUSA, SPXS
- Bond ETFs — gilts, global agg, USD corp
Portfolio construction
The standard frameworks: one-fund global (simplest), 3-fund portfolio (equity + bond + international), or modular core-satellite (multiple ETFs by region/factor). For UK retail investors, most diversification benefits are captured by 1-3 ETFs.
- One-fund global portfolio — the simplest possible
- 3-fund portfolio guide — three funds covering shares and bonds
- Cautious core portfolio — conservative allocation
- iShares ETFs for UK investors — the Core building blocks
- Vanguard ETFs for UK investors — the range and the platform
- Rebalancing guide — when and how
Tax on investment income and gains
Outside an ISA/SIPP wrapper, UK investors face dividend tax (10.75% / 35.75% / 39.35%), savings interest tax (using PSA), and CGT (18% / 24% from 30 Oct 2024) on disposals above the £3,000 annual exempt amount.
- Dividend tax calculator — rates + allowance
- Savings interest tax — PSA + starting rate band
- CGT on shares calculator — pool tracking + rates
- Complete CGT guide — all the rules in one place
- Bed-and-ISA guide — migrate GIA into ISA
Pensions for investors
Pension contributions get Income Tax relief at your highest rate (40% for a higher-rate taxpayer), growth inside the pension is free of tax, and usually up to 25% can be taken tax-free, within the £268,275 Lump Sum Allowance. Employer contributions are paid on top of salary.
- Pension projection calculator — long-term forecasting
- SIPP platforms compared — platform comparison
- LISA vs SIPP — when each wins
- Higher-rate relief calculator — reclaim 20% via SA
Alternative investments and tax shelters
EIS (30% relief), SEIS (50% relief) and VCTs (20% relief on shares issued from 6 April 2026, 30% before, plus tax-free dividends) are the main UK tax-advantaged routes for higher-risk early-stage investing. Crypto, P2P lending, options trading and structured products each have specific UK tax treatments.
- EIS/SEIS relief calculator — 30%/50% income tax relief
- VCT relief calculator — 20% + tax-free dividends
- Crypto tax calculator — gains + income + DeFi
- Crypto investor guide — full UK tax framework
- UK options trading guide — tax + mechanics
How UK Tax Drag holds itself to account
Pages are checked against the primary sources listed on each page and reviewed by the Editor; corrections are logged in the changelog. Pages are drafted with the help of AI tools (how AI is used). No affiliate revenue. No sponsored content. No paid placements.
UK Tax Drag is an independent publication by Finsolve Consulting Limited, not affiliated with or endorsed by HMRC, GOV.UK or any government body.