SEIS and EIS Tax Relief: The 2026/27 Guide for Investors and Founders
SEIS gives 50 percent income tax relief, EIS gives 30 percent, and from 6 April 2026 the EIS company limits doubled while SEIS was left exactly where it was. This guide covers both schemes for investors and founders, the reliefs that matter more than the headline rate, and the advance assurance squeeze that is now the real bottleneck.
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