diff --git a/ledger/update.jq b/ledger/update.jq
index cdd0d05..368e4b4 100644
--- a/ledger/update.jq
+++ b/ledger/update.jq
@@ -1,3 +1,23 @@
+# Takes in a string as the transaction description and returns the
+# acconut to categorize as.
+def categorize_transaction:
+  if test("MURNMGMT-MIRA") then "Expenses:Bills:Rent"
+  elif test("VERIZON\\s+DES") then "Expenses:Bills:Internet"
+  elif test("PEPCO\\s+PAYMENTUS|WASHINGTON\\s+GAS\\s+DES") then "Expenses:Bills:Utilities"
+  elif test("HEALTHEQUITY\\s+INC") then "Assets:HealthEquity"
+  elif test("LOCKHEED\\s+MARTIN") then "Income:Work"
+  elif test("CASH\\s+REWARDS") then "Income:Gifts"
+  elif test("Roosters") then "Expenses:Essentials:Hygiene"
+  elif test("ALASKA\\s+AIR") then "Expenses:Travel:Flights"
+  elif test("HELP\\.UBER\\.COMCA") then "Expenses:Travel:Taxi"
+  elif test("STEAM GAMES") then "Expenses:Entertainment:Games"
+  elif test("YouTubePremium|DOORDASHDASHPASS|Prime\\s+Video\\s+Channels|TIDAL\\.COM|Amazon Grocery|SIMPLEFIN BRIDGE|(APPLE\\.COM.*RECURRING$)") then "Expenses:Subscriptions"
+  elif test("MOMS OF|SAFEWAY\\.COM|MAYORGA") then "Expenses:Food:Groceries"
+  elif test("CHICK-FIL-A|GEMELLIS\\s+ITALIAN|CHIPOTLE|SHEETZ|KUNG\\s+FU\\s+TEA") then "Expenses:Food:Restaurants"
+  elif test("GRUBHUB|DD\\s+\\*DOORDASH") then "Expenses:Food:Delivery"
+  elif test("MARKET@WORK") then "Expenses:Food:Snacks"
+  else "UNKNOWN" end;
+
 def format_transactions:
     map(
         .name as $name |
@@ -7,7 +27,7 @@ def format_transactions:
     sort_by(.transacted_at) |
     map(
         (.transacted_at | strftime("%Y/%m/%d")) + " " +
-        (.description | gsub("\\s+"; " ")) + "\n    UNKNOWN    $" +
+        (.description | gsub("\\s+"; " ")) + "\n    " + (.description | categorize_transaction) + "    $" +
         (-(.amount | tonumber) | tostring) + "  ; Payee: " +
         .payee + "\n    " +
         .account + "\n"
@@ -20,4 +40,4 @@ def rename_accounts:
     elif (.| startswith("Amazon Prime Rewards Visa Signature")) then "Amazon"
     end));
 
-.accounts | rename_accounts | format_transactions[]
\ No newline at end of file
+.accounts | rename_accounts | format_transactions[]