From 1 January 2025, some entrepreneurs can use the cash PIT, i.e. settle revenues and costs only after actual payment. To choose this method, you must run a sole proprietorship, not exceed PLN 1 million in revenue in the previous year and not keep accounting books. The choice of the cash method should be reported to the head of the tax office by 20 February (or by the 20th day of the month after starting business during the year). The cash method is valid throughout the year and does not apply to, among others, companies or transactions with individuals who do not run a business. Cash PIT can improve financial liquidity, because the tax is paid only after the actual payment is received.