Create a quarterly overview of all payments (both received and paid). A cash flow analysis is similar to a summary of your the bank statement. Make sure to include payments on investments but also costs for incorporation, rental guarantees, acquisition costs of capital, et cetera. Also plan loan disbursements and repayments and capital disbursements and dividend payments. Please make sure you are as conservative as possible with revenues from sales, which have a habit of being disappointing in the early stages of your business. Consider payment periods (delays) and VAT payments.