You are in a tough situation if there is no accountability and business owners run the show. Some initial thoughts to try and effect change could be:
- First and foremost you need the tone at the top to set the rules. This should come from your CFO and he should understand the importance of tracking these costs correctly and ensuring the right impacts are being recorded in the financial statements. You cant force change unless the CFO has your back and is willing to push the business owners to accomodate your needs.
- If your CFO is not a resource or ally, then I would frame the question in terms of audit risk - both for US GAAP and regulatory reporting (I assume you are in the health business and therefore regulated by states). A state examiner may take issue with the process and lack of visibility and cause disruption in the business through additional oversight or penalties. For US GAAP this may result in a qualified opinion given the dollars we are speaking about. These are real risks and management needs to be aware if they dont correct the process they will have to live with the consequences.
- Third, I dont know if you sign off on SOX, but I do and anytime there is an issue that I do not believe is correct, I list this as a deficiency. This will go to the audit committee and the CEO/CFO will not sign off without a plan to correct the situation. Typically, when I do this, it results in consensus discussions that creates the change I need so that I do not qualify my signature.
- I assume when you say this is to rig bonuses that performance is measured relative to a plan. This was the case at my company and I was able (over the course of 5 years) to convince management that plan performance was meaningless for bonus structures and we have since moved to a growth rate. This way, if they continue to defer costs in the future through capitalization, eventually the expense will hit and they will be forced to generate real business performance to get their bonus. This is a tough sell and relys on CEO/CFO willing to change the structure (not an easy sell).
- Lastly, If you truly are not supported on this, just make sure you have documentation that you disagreed with the approach and attempted to make change but powers above decided not to act on it. This protects you in case they are looking for a scapegoat when someone finally realizes their mistake (as you note there is fingerpointing).
Wish I could be more help but you seem to be in a no-win situation.