Self Assessment - CGT Reinvestment Relief on EIS and SEIS

[UpTheIron]

Hi All. A less common tax/self-assessment query, I can't seem to find a definitive answer with a worked example online and I've found a couple of conflicting pieces of advice, so prior to seeking professional help I thought I'd ask here...

Within the same tax year I have:
- realised a gain liable to CGT but also eligible for Entrepreneurs Relief.
- invested in a number of early stage companies that are eligible for SEIS reliefs and I hold the relevant paperwork for this
- as above, but EIS rather than SEIS.

I have sufficient income tax liability to apply income tax relief from the EIS & SEIS investments and I've got this figured out on my tax return. It's the CGT calculation that is proving a little more tricky to pin down.

For example, let's say the numbers are:

£100k capital gain
£30k reinvested in SEIS
£3k reinvested in EIS

I know the SEIS & EIS investment reduces the CGT liabiliity, is this as straightforward as:

SEIS CGT Reinvestment Relief - reduce the £100k capital gain by £15k - 50% of the amount invested in the computations and annotate as such.
EIS CGT Deferral Relief - reduce the £100k capital gain by £3k in the computations and annotate as such.

This would then leave £82k liable to CGT (at 10% after allowances thanks to ER).

Is that correct? My confusion arises as I've seen a worked example from an accountant that shows the SEIS reinvestment at 100% but this conflicts with everything else I've seen.

Edit: I think I've answered my question.
100% of reinvested amount is deferred, so current liability is £67k. Upon disposal of the SEIS/EIS, SEIS CGT relief kicks in, meaning only 50% liability, EIS doesn't have the relief, so 100% CGT liability applies.

Edited by UpTheIron on Tuesday 5th October 14:21