diff --git a/lib/lunchmoney.rb b/lib/lunchmoney.rb
index f85e0b7..d75b2e0 100644
--- a/lib/lunchmoney.rb
+++ b/lib/lunchmoney.rb
@@ -12,6 +12,7 @@ class Module
   include T::Sig
 end
 
+# Add type alias for when Integer and Float can both be used
 Number = T.type_alias { T.any(Integer, Float) }
 
 require_relative "lunchmoney/version"
diff --git a/lib/lunchmoney/budget/config.rb b/lib/lunchmoney/budget/config.rb
index 3bdbd5c..2bd3169 100644
--- a/lib/lunchmoney/budget/config.rb
+++ b/lib/lunchmoney/budget/config.rb
@@ -7,7 +7,10 @@ class Config < LunchMoney::DataObject
     # API object reference documentation: https://lunchmoney.dev/#config-object
 
     sig { returns(Integer) }
-    attr_accessor :config_id, :amount, :to_base
+    attr_accessor :config_id
+
+    sig { returns(Number) }
+    attr_accessor :amount, :to_base
 
     sig { returns(String) }
     attr_accessor :cadence, :currency, :auto_suggest
@@ -16,9 +19,9 @@ class Config < LunchMoney::DataObject
       params(
         config_id: Integer,
         cadence: String,
-        amount: Integer,
+        amount: Number,
         currency: String,
-        to_base: Integer,
+        to_base: Number,
         auto_suggest: String,
       ).void
     end
diff --git a/lib/lunchmoney/recurring_expenses/recurring_expense/recurring_expense.rb b/lib/lunchmoney/recurring_expenses/recurring_expense/recurring_expense.rb
index ad1f34f..7c8a84b 100644
--- a/lib/lunchmoney/recurring_expenses/recurring_expense/recurring_expense.rb
+++ b/lib/lunchmoney/recurring_expenses/recurring_expense/recurring_expense.rb
@@ -35,7 +35,7 @@ class RecurringExpense < RecurringExpenseBase
         plaid_account_id: T.nilable(Integer),
         asset_id: T.nilable(Integer),
         transaction_id: T.nilable(Integer),
-        to_base: T.nilable(Integer),
+        to_base: T.nilable(Number),
       ).void
     end
     def initialize(cadence:, payee:, amount:, currency:, billing_date:, type:, source:, id:, created_at:,
diff --git a/lib/lunchmoney/recurring_expenses/recurring_expense/recurring_expense_base.rb b/lib/lunchmoney/recurring_expenses/recurring_expense/recurring_expense_base.rb
index 6ca1ac8..1de1752 100644
--- a/lib/lunchmoney/recurring_expenses/recurring_expense/recurring_expense_base.rb
+++ b/lib/lunchmoney/recurring_expenses/recurring_expense/recurring_expense_base.rb
@@ -7,7 +7,7 @@ class RecurringExpenseBase < LunchMoney::DataObject
     sig { returns(String) }
     attr_accessor :payee, :currency, :amount
 
-    sig { returns(T.nilable(Integer)) }
+    sig { returns(T.nilable(Number)) }
     attr_accessor :to_base
 
     sig do
@@ -15,7 +15,7 @@ class RecurringExpenseBase < LunchMoney::DataObject
         payee: String,
         amount: String,
         currency: String,
-        to_base: T.nilable(Integer),
+        to_base: T.nilable(Number),
       ).void
     end
     def initialize(payee:, amount:, currency:, to_base:)
diff --git a/lib/lunchmoney/transactions/transaction/split.rb b/lib/lunchmoney/transactions/transaction/split.rb
index 64a6b05..337f95d 100644
--- a/lib/lunchmoney/transactions/transaction/split.rb
+++ b/lib/lunchmoney/transactions/transaction/split.rb
@@ -4,12 +4,12 @@
 module LunchMoney
   # Object used to split a transaction when updating https://lunchmoney.dev/#update-transaction
   class Split < TransactionModificationBase
-    sig { returns(T.any(Integer, String)) }
+    sig { returns(T.any(Number, String)) }
     attr_accessor :amount
 
     sig do
       params(
-        amount: T.any(Integer, String),
+        amount: T.any(Number, String),
         payee: T.nilable(String),
         date: T.nilable(String),
         category_id: T.nilable(Integer),