The table below analyses the Company's financial liabilities into relevant maturity groupings based on the remaining period at the balance sheet to the contractual maturity date. The amounts disclosed in the table are the contractual undiscounted cash flows. Balances due within 12 months equal their ***carrying balances*** as the impact of discounting is not significant.

Мой вариант: Размер остатков, сроки по которым наступают в течение 12 месяцев, равен размеру соответствующих балансовых остатков, т.к. влияние дисконтирования незначительно.

* 'Balance carried over'

or
* 'Balance carried forward' (c/f) (ie, to be transferred from the bottom of one column to the top of the next column, or from the bottom of one account to the top of the next account)?

(b/f = 'brought forward' (ie, transferred from the bottom of the previous column or previous account))