The Fees and Commissions play a vital role for every transactions. They are used when fees are to be  settled/charged during the life cycle of a contract.

Such Fees includes expenses occurred for Swift Messages, Handling Fee, Postal Fee, Interest Fee, Liability commission, Amendment commission, Agents commission, Assignment Fee, Discrepancy Fee, Settlement Fee, Advising Fee and so on.

When new Fee set up is done first, a default condition is created with the specified method of calculation.

To maintain Fee codes, DBIFEE transaction is used.  

Select it from the menu item[Static Data -> Fee/Interest -> Fee]. 

(Administrator and designer users can directly start this transaction by clicking the  (Launch transaction ) available in the Panel headline without having to select the relevant menu ) 

To add a new Fee , click on the  to create a new fee.

When you have made your changes, click on ( )  Save function to save all the the data entered in the transaction to the database.

The “Relevant Amount” field contains the amount type that is used as the basis for calculating the relevant tiered amounts for fees. The definition of the amount the fee is to apply to is in the condition itself. This can, however, vary if it makes sense from a banking perspective.

The description of the fee in all system languages is used for the display in the Settlement Panel and as a proposal for letters. If fees are displayed in SWIFT or DTA messages, appropriate permitted language-neutral codes are used.

The Booking Type offers the following for selection:

• Charge
• Commission - distinction to “Fee” only relevant for statistical purposes
• All-in Fee - a fee defined in this way can be used as an all-in fee
• VAT - a fee defined in this way can be used as VAT
• Check External Fee - used in business sector 'check' as part of a check route agreement, it may have been arranged with the collecting back what fee it is entitled to for collecting the payment documents. This fee is to be stored for the check route in the static data and must be designated as a “check external fee” in the definition of the fee. Within the business transaction “check presentation”, this fee is then treated as a pass through charge to be deducted from the countervalue of the checks to the presenter but credited to the collecting back at a later stage or at certain intervals

“All-in” fee is then used instead of the single fee. Several single fees with the same “All-in” fee mean that the fee is only charged once.

"VAT" is calculated on the fee amount and added to it.

The “Income” checkbox is to be checked when the revenues represent income for the bank (e.g. processing fees), as opposed to charges, which represent a replacement of expenses incurred by the bank (e.g. postage).

The income account that recognizes the fee is specified in the “Account” field.

The “Accruing account” tag indicates the internal interim account to which fees to be accrued are posted.

The period for which the fee is to apply is determined by the “Begin date” and “End date” fields. The fee can only be used during these two dates.

If the checkbox “Modification of Description Allowed in Settlement” is checked, then the fee description can be changed in the Settlement panel.

The “Usable in” field is used to define the business sector and the transactions in which the fee can be used. If the field is left empty there are no restrictions on use. Otherwise, permitted sectors are defined by their two-digit sector code and transactions by their transaction code. Both codes are preceded by a plus sign.

After the fee has been saved, the user is automatically taken to the Adding a Condition transaction. DBAFEC. This allows the required conditions to be captured.

Exclude last day for Interest Calculation for Loans and Advances:

In case of interest calculation on Loans (TRCX commission) and Advance(BPCX commission), to exclude the last day in the calculation of interest period, the 'Interest' should be defaulted in the Booking Type drop down field in Fee set up as shown in the below screenshot,

Please refer the link for Fee Conditions related article.

See also these articles with worked examples;
Varying Settlement Period 

Varying Calculation Period

Varying Type of Tiers in fee calculation