Not a lot of companies can afford to have a full time accounts team on board to help navigate the various financial and tax laws that any growing organization has to tackle. Many small to medium sized business owners do not think that this is something that will be necessary until their company grows past a certain size, however, that is not necessarily the case. At different sizes and at different growth rates you will find that there are different types of laws, tax brackets, and company requirements that you have to fulfill and it can get very confusing for anyone who is not well versed with a lot of technical financial terms.
A lot of business owners also make the mistake of thinking that getting one accountant to come in and solve all the companies financial problems will be good enough. This is not true and can end up either putting too much pressure on one person and actually ruining good progress that your company might be making. The best way to deal with this is to partner up with an accounting firm who is able to allocate resources to you to help solve your financial and tax law problems. Having a team ready to work for your will both get things done a lot faster and also keep things better in check so one person cannot ruin the whole thing or end up trying to steal from the company (which happens quite often with singular accountants in a company.
Having a good accounting firm selection will give you a reasonable price for the many power and will not require you to keep a salaried resource to do the work that you only need done once a month or once a quarter depending on your company and work.