One limitation of the balance sheet is that only the assets acquired in transactions can be included. Therefore, some of a company's most valuable assets will not be reported on the balance sheet. For example, assume that a company developed an internet business that now attracts millions of visitors each day and has $10 million in annual revenues. Since the internet business was not purchased from another company and its cost to develop was not significant, the company's balance sheet will include the business's cash, receivables and some related payables. However, the company's balance sheet will not be reporting the internet business at anywhere near the $30 million that the company was offered for the internet business.
Similarly, the immensely talented designers and content writers employed by an internet business cannot be reported as assets on the company's balance sheet since they were not acquired (and accountants are not able to compute a precise amount for these human resources). This is also the case for a company's reputation, its brand names that were developed through years of effective marketing, its customers' future demand for its unique services, etc.
Another limitation of the balance sheet pertains to a company's long-term (or noncurrent) assets which have increased in value since the time they were purchased in a transaction. For instance, a company's land will be reported at an amount no greater than its cost (due to the accountant's cost principle). Its buildings will be reported at their cost minus their accumulated depreciation (due to the cost principle and the matching principle). Hence, the amounts reported on the balance sheet for a company's land and buildings could be much lower than their market value.