United Kingdom calculator
UK Dividend Reinvestment Calculator 2026/27
Compare dividend reinvestment inside an ISA with a taxable UK account.
Use the calculator ↓Adjust the assumptions
UK Dividend Reinvestment Calculator 2026/27
Compare dividend reinvestment inside an ISA with a taxable UK account.
Result
£0
View year-by-year breakdown ＋
| Year | Contributions | Growth | Balance |
|---|
Questions answered
What this calculator helps you work out
- What could reinvested UK dividends grow to?
- How could dividend tax affect compounding outside an ISA?
- What is the estimated difference between ISA and taxable reinvestment?
Common questions
UK Dividend Reinvestment Calculator 2026/27 FAQs
Are dividends in a UK ISA taxed?＋
GOV.UK states that dividend income from shares held in an ISA is not subject to dividend tax.
What is the dividend allowance for 2026/27?＋
The dividend allowance is £500.
Which dividend tax rate should I enter?＋
For 2026/27 the published rates above the allowance are 10.75%, 35.75% and 39.35%, depending on the applicable band.
Go beyond the result
Dividend Reinvestment in the UK: ISA vs Taxable Account
See a worked example, the trade-offs to consider and the assumptions that can change the answer.