diff --git a/src/pybroker/common.py b/src/pybroker/common.py
index a16ce87..b2fa131 100644
--- a/src/pybroker/common.py
+++ b/src/pybroker/common.py
@@ -152,11 +152,13 @@ class FeeInfo(NamedTuple):
     """Contains info for custom fee calculations.
 
     Attributes:
+        symbol: Trading symbol.
         shares: Number of shares in order.
         fill_price: Fill price of order.
         order_type: Type of order, either "buy" or "sell".
     """
 
+    symbol: str
     shares: Decimal
     fill_price: Decimal
     order_type: Literal["buy", "sell"]
diff --git a/src/pybroker/portfolio.py b/src/pybroker/portfolio.py
index c4bd61c..61541d4 100644
--- a/src/pybroker/portfolio.py
+++ b/src/pybroker/portfolio.py
@@ -353,6 +353,7 @@ def __init__(
 
     def _calculate_fees(
         self,
+        symbol: str,
         fill_price: Decimal,
         shares: Decimal,
         order_type: Literal["buy", "sell"],
@@ -364,6 +365,7 @@ def _calculate_fees(
             fees = to_decimal(
                 self._fee_mode(
                     FeeInfo(
+                        symbol=symbol,
                         shares=shares,
                         fill_price=fill_price,
                         order_type=order_type,
@@ -424,7 +426,7 @@ def _add_order(
         shares: Decimal,
     ) -> Order:
         self._order_id += 1
-        fees = self._calculate_fees(fill_price, shares, type)
+        fees = self._calculate_fees(symbol, fill_price, shares, type)
         order = Order(
             id=self._order_id,
             date=date,
diff --git a/tests/test_portfolio.py b/tests/test_portfolio.py
index 2dc2774..aac017f 100644
--- a/tests/test_portfolio.py
+++ b/tests/test_portfolio.py
@@ -733,6 +733,7 @@ def test_sell_when_all_shares_and_fractional():
 
 
 def calc_fees(fee_info):
+    assert fee_info.symbol == SYMBOL_1
     assert fee_info.shares == SHARES_1
     if fee_info.order_type == "buy":
         assert fee_info.fill_price == FILL_PRICE_1