The tax bureau does not send special personnel to audit the accounts. How do they know if your company has truthfully declared it? Whether there is any irregular behavior (such as white entry, etc.). ) Does business entertainment expenses include the part exceeding the standard in pre-tax expenses? Are there any non-operating expenses such as fines, late fees and donation fees that cannot be charged before tax?
So, although you have already made tax adjustment when the tax is remitted, how can you believe it if the tax bureau doesn't take a look, check and calculate for itself? Seeing is believing!
As for some expenses that have not been invoiced, you should deal with them quickly. In the future, you should ask the cashier to reject the IOUs when paying the money, and gently tell your unit leader the seriousness of IOUs, which is against the financial system.
If the tax authorities don't check carefully, it's your luck. Anyway, if you find out, you have to accept fines and warnings.