Yes. Bank accounts need to be revalued periodically.

Basically you post a $1.00 G/L transaction between Currency Exchange and the foreign currency bank account, then post the opposite amount. The first transaction is done at an exchange rate of 1 + the amount you need to adjust, the second one reverses the first transaction at a rate of 1.000

So if you need to adjust the home currency value down by $2,101.70 you would debit the Exchange gain / loss account by $1.00 at a rate of 2,102.7000, credit the bank account. The next transaction would credit exchange gain / loss by $1.00 at 1.00

The net effect is to correct the home currency value without a net change to the foreign currency amount.

Other foreign currency amounts (i.e. receivables and payables) can be revalued in a similar way, or with an extra G/L account (i.e. if 1200 is A/R, create a 1201 account for Gain/Loss as of year end)

Receivables and Payables are always cleared out as they are paid, so there's no need to revalue them throughout the year.