Many firms will have an arranged overdraft that covers fluctuations in cash flow resulting from variable invoicing and uncertain creditor payments. An overdraft is generally easy to arrange, flexible and has the advantage of only charging interest on the balance actually outstanding. However, the rate of interest will be higher than for a formal loan, which will be more suitable for specific purchases.
Business credit cards can be extremely useful when they're issued to employees who make purchases and spend money on the company's behalf. Typical examples are sales representatives who are buying business lunches, spending nights in hotels and refuelling their cars as they travel the motorways.