This calculator supports UK/US assumptions only. Choose the applicable market in the calculator or its named UK/US tool. Israeli rules are not implemented.
UK Tax Tools · 07
EIS / SEIS, real cost, real downside.
Income-tax relief plus loss relief means even a total loss costs surprisingly little. The upside is uncapped and CGT-free.
Investment
£
Your tax position
Outcome assumption
Effective net loss
£8,400
After income tax relief and (where relevant) loss relief.
Income tax relief
£6,000
Loss relief
£5,600
Net outcome
-£8,400
Outcome breakdown - share of the original investment
IT reliefLoss reliefNet cost at risk
Downside-capped. A total loss costs much less than the gross amount once income-tax relief and loss relief are stacked. The higher your marginal rate, the smaller the net loss.
Illustrative figures only, 2025/26 reliefs. EIS / SEIS investments are highly illiquid and most fail. Not advice. For your situation, consult a qualified adviser.
Risk capital, planned.
Worth models EIS, SEIS and VCT alongside your pension, ISA and equity comp, so you can see how the asymmetric bets fit the whole picture. Join the waitlist.
Frequently asked questions
What is loss relief?
If your EIS or SEIS investment makes a loss, you can offset that loss against either capital gains tax or income tax in the year of disposal. For a higher-rate taxpayer offsetting against income, that is another 40-45% recovery on the lost capital, stacked on top of the original income-tax relief, the after-tax cost of a total loss is much smaller than the gross.
Are EIS and SEIS suitable for everyone?
No. These are illiquid investments in early-stage companies. Most fail. The reliefs only help if you have income tax to relieve in the first place, basic-rate taxpayers get less benefit, and non-taxpayers get nothing. The schemes are designed for sophisticated investors who can absorb total losses on individual positions.
Funds vs direct?
EIS funds spread investment across 10-30+ companies, smoothing the inevitable failures. Direct investment in a single company concentrates the risk dramatically. For most retail investors, funds are the sensible default; direct is for people who want to back specific founders.
We use cookies to keep the site working and, with your consent, to measure what is working across analytics and ad platforms.We use cookies to keep the site working and, with your consent, to measure what is working across analytics and ad platforms. See our Privacy Policy.
Cookie Preferences
Choose which cookies you allow. Necessary cookies cannot be disabled as they are required for the site to function.