Understanding your taxes and business finances doesn’t have to be complicated. Our collection of free business calculators is designed to help entrepreneurs, self-employed professionals, and small business owners quickly estimate their tax liabilities, plan ahead, and make smarter financial decisions. Whether you’re calculating your Self Assessment tax, Corporation Tax, Dividend Tax, or comparing sole trader vs limited company profits, our tools give you instant, reliable estimates based on current UK tax rates.

At Grow My Acorn, we’ve created these calculators to simplify the numbers so you can focus on what really matters — growing your business. Each tool comes with clear explanations and practical insights to help you understand what the results mean for your bottom line. Whether you’re planning for tax season, managing cash flow, or exploring new business structures, this section gives you the clarity and confidence to stay financially in control all year round.