Wow, your organization needs to hire an analyst! I am saying, that is a relatively easy problem for the modern organization. It is called the cost of doing business, and sometimes you need to pay for the things that the business requires. Perhaps, a different hiring method needs to be utilized when hiring the back office in such an organization.
This is not a technical problem, but a legal one. You really need to consult a pro in your area to assist, as we are discussing taxes.
What happens when you tell the tax man that you plugged in an EXCEL formula you cut and pasted from CCM.NET? Do you thing he cares?
It's kind of fun to do the impossible! -Walter Elias Disney