Final answer:
The amount to be reported as total liabilities on the balance sheet at the end of January is $5,050.
Step-by-step explanation:
The amount to be reported as total liabilities on the balance sheet at the end of January is $5,050.
The liabilities include the promissory note for $3,850 and the unpaid bill for utilities of $3,750. However, since the consulting firm paid $825 on account, this amount will be subtracted from the total liabilities.
Therefore, $3,850 + $3,750 - $825 = $5,050 will be reported as the total liabilities on the balance sheet at the end of January.