Associated Companies — How They Affect Your Corporation Tax Rate
How associated companies change your Corporation Tax thresholds. What counts, what doesn't, dormant company exemption, and how to report them on your CT600.
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Plain-English guides to UK Corporation Tax and CT600 filing.
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Corporation Tax Rates 2025/26 - Marginal Relief Calculator
UK corporation tax rates for 2025/26: 19% small profits rate, 25% main rate, and how marginal relief works for profits between £50,000 and £250,000.