How to plan for your yearly tax
The simplest way to avoid a tax shock is to set money aside every month against the year ahead. This estimator turns your turnover and margin into a yearly tax figure and a monthly amount to keep aside.
It is an estimate, not a return. The turnover tax regime charges 3% of turnover; a limited company pays 30% of net profit; a sole trader pays graduated rates that average roughly a quarter of profit. Allowable expenses, reliefs and instalment tax all change the real number, so use this to plan, then file on your actual figures.