Loan taken from bank
Create account under loans (Liability)
Then create an income transaction under Transactions > Income > Create
Received into : Cash/Bank
Received From : Loan’s A/c
To calculate interest, Go to Interest Calculation Report under Other Reports
Enter the interest rate and select the account, it will calculate and show you the interest amount calculated.
After calculating the interest, you need to pass a journal entry
Create a journal entry under Transactions > Journal > Create
Interest A/c (under Direct Expense) Debit
Loan A/c Credit
When you are paying interest or EMI or loan amount
Then create an Expense Transactions under Transactions > Expense > Create
Paid from : Cash/Bank
Paid to : Loan A/c
Also you can see the Ledger Report of your loan account, it will show you that how much amount is still pending and how much amount you have paid.