diff --git a/internal/service/transaction.go b/internal/service/transaction.go
index 9dada59..cabf5ed 100644
--- a/internal/service/transaction.go
+++ b/internal/service/transaction.go
@@ -512,18 +512,6 @@ func (s TransactionImpl) validateAndEnrichTransaction(ctx context.Context, tx *s
 	return &transaction, nil
 }
 
-// There are the following constallations and their explanation:
-//
-//	Account	| TreasureChest	| Value	| Description
-//	--------|---------------|-------|----------------
-//	Y		| Y				| +		| Invalid
-//	Y		| Y				| -		| Bought a good
-//	Y		| N				| +		| Income
-//	Y		| N				| -		| For moving money between accounts
-//	N		| Y				| +		| Saving
-//	N		| Y				| -		| For moving money between treasure chests
-//	N		| N				| +		| Invalid
-//	N		| N				| -		| Invalid
 func (s TransactionImpl) updateErrors(t *types.Transaction) {
 	errorStr := ""
 
diff --git a/internal/types/transaction.go b/internal/types/transaction.go
index b53d0c2..a4f8a9e 100644
--- a/internal/types/transaction.go
+++ b/internal/types/transaction.go
@@ -13,6 +13,19 @@ import (
 //
 // If it becomes necessary to precalculate snapshots for performance reasons, this can be done in the future.
 // But the transaction should always be the source of truth.
+//
+// There are the following constallations and their explanation:
+//
+//	Account	| TreasureChest	| Value	| Description
+//	--------|---------------|-------|----------------
+//	Y		| Y				| +		| Invalid
+//	Y		| Y				| -		| Expense
+//	Y		| N				| +		| Deposit
+//	Y		| N				| -		| Withdrawal (for moving between accounts)
+//	N		| Y				| +		| Saving
+//	N		| Y				| -		| Withdrawal (for moving between treasure chests)
+//	N		| N				| +		| Invalid
+//	N		| N				| -		| Invalid
 type Transaction struct {
 	Id     uuid.UUID `db:"id"`
 	UserId uuid.UUID `db:"user_id"`