diff --git a/src/ytdl_sub/script/parser.py b/src/ytdl_sub/script/parser.py
index 17127b4c..5d6ee489 100644
--- a/src/ytdl_sub/script/parser.py
+++ b/src/ytdl_sub/script/parser.py
@@ -41,6 +41,11 @@ UNREACHABLE = UnreachableSyntaxException(
 
 BRACKET_NOT_CLOSED = InvalidSyntaxException("Bracket not properly closed")
 
+NUMERICS_ONLY_ARGS = InvalidSyntaxException(
+    "Numerics can only be used as arguments to functions, maps, or arrays"
+)
+NUMERICS_INVALID_CHAR = InvalidSyntaxException("Invalid value when parsing a numeric")
+
 
 def UNEXPECTED_CHAR_ARGUMENT(parser: ArgumentParser):
     return InvalidSyntaxException(f"Unexpected character when parsing {parser.value} arguments")
@@ -64,6 +69,10 @@ def _is_variable_start(char: str) -> bool:
     return char.isalpha() and char.islower()
 
 
+def _is_numeric_start(char: str) -> bool:
+    return char.isnumeric() or char == "-"
+
+
 class _Parser:
     def __init__(self, text: str):
         self._text = text
@@ -154,17 +163,38 @@ class _Parser:
 
     def _parse_numeric(self) -> Integer | Float:
         numeric_string = ""
+
+        if self._read(increment_pos=False) == "-":
+            numeric_string += "-"
+            self._pos += 1
+        if has_decimal := (self._read(increment_pos=False) == "."):
+            numeric_string += "."
+            self._pos += 1
+
         while ch := self._read(increment_pos=False):
-            if not (ch.isnumeric() or ch == "."):
+            if ch == "-":
+                raise NUMERICS_INVALID_CHAR
+
+            if ch == ".":
+                if has_decimal:
+                    raise NUMERICS_INVALID_CHAR
+                has_decimal = True
+
+                self._pos += 1
+                numeric_string += ch
+            elif ch.isnumeric():
+                self._pos += 1
+                numeric_string += ch
+            else:
                 break
 
-            self._pos += 1
-            numeric_string += ch
+        if numeric_string == "." or numeric_string == "-":
+            raise NUMERICS_INVALID_CHAR
 
         try:
             numeric_float = float(numeric_string)
         except ValueError:
-            raise StringFormattingException(f"Invalid numeric: {numeric_string}")
+            raise UNREACHABLE
 
         if (numeric_int := int(numeric_float)) == numeric_float:
             return Integer(value=numeric_int)
@@ -190,7 +220,7 @@ class _Parser:
         if self._read(increment_pos=False) == "%":
             self._pos += 1
             return self._parse_function()
-        if self._read(increment_pos=False).isnumeric():
+        if _is_numeric_start(self._read(increment_pos=False)):
             return self._parse_numeric()
         if (self._read(increment_pos=False, length=4) or "").lower() == "true":
             self._pos += 4
@@ -377,6 +407,8 @@ class _Parser:
                     self._ast.append(self._parse_map())
                 elif _is_variable_start(ch1):
                     self._ast.append(self._parse_variable())
+                elif _is_numeric_start(ch1):
+                    raise NUMERICS_ONLY_ARGS
                 else:
                     raise UNEXPECTED_CHAR_ARGUMENT(parser=ArgumentParser.SCRIPT)
             elif bracket_counter == 0:
diff --git a/tests/unit/script/types/test_array.py b/tests/unit/script/types/test_array.py
index ea2f44c0..f4b0e8b7 100644
--- a/tests/unit/script/types/test_array.py
+++ b/tests/unit/script/types/test_array.py
@@ -2,7 +2,6 @@ import re
 
 import pytest
 
-from ytdl_sub.script.parser import BRACKET_NOT_CLOSED
 from ytdl_sub.script.parser import UNEXPECTED_CHAR_ARGUMENT
 from ytdl_sub.script.parser import UNEXPECTED_COMMA_ARGUMENT
 from ytdl_sub.script.parser import ArgumentParser
diff --git a/tests/unit/script/types/test_integer.py b/tests/unit/script/types/test_integer.py
new file mode 100644
index 00000000..49907dfe
--- /dev/null
+++ b/tests/unit/script/types/test_integer.py
@@ -0,0 +1,62 @@
+import re
+from typing import Tuple
+
+import pytest
+
+from ytdl_sub.script.parser import NUMERICS_INVALID_CHAR
+from ytdl_sub.script.parser import NUMERICS_ONLY_ARGS
+from ytdl_sub.script.parser import UNEXPECTED_CHAR_ARGUMENT
+from ytdl_sub.script.parser import UNEXPECTED_COMMA_ARGUMENT
+from ytdl_sub.script.parser import ArgumentParser
+from ytdl_sub.script.script import Script
+from ytdl_sub.script.types.array import ResolvedArray
+from ytdl_sub.script.types.resolvable import Float
+from ytdl_sub.script.types.resolvable import Integer
+from ytdl_sub.script.types.resolvable import String
+from ytdl_sub.script.utils.exceptions import InvalidSyntaxException
+
+
+class TestInteger:
+    @pytest.mark.parametrize(
+        "integer",
+        [
+            "{1}",
+            "{  1  }",
+            "{-1}",
+            "{   -1   }",
+            "{0001}",
+            "{  0001   }",
+        ],
+    )
+    def test_integer_not_arg(self, integer: str):
+        with pytest.raises(InvalidSyntaxException, match=re.escape(str(NUMERICS_ONLY_ARGS))):
+            Script({"integer": integer}).resolve()
+
+    @pytest.mark.parametrize(
+        "integer, expected_integer",
+        [
+            ("{%int(1)}", 1),
+            ("{%int(  1  )}", 1),
+            ("{%int(-1)}", -1),
+            ("{%int(   -1   )}", -1),
+            ("{%int(0001)}", 1),
+            ("{%int(  0001   )}", 1),
+        ],
+    )
+    def test_integer(self, integer: str, expected_integer: int):
+        assert Script({"integer": integer}).resolve() == {"integer": Integer(expected_integer)}
+
+    @pytest.mark.parametrize(
+        "integer",
+        [
+            "{%add(0, --1)}",
+            "{%add(0,  1-  )}",
+            "{%add(0,-1-)}",
+            "{%add(0,   -1 -   )}",
+            "{%add(0,0001a)}",
+            "{%add(0,  0001b   )}",
+        ],
+    )
+    def test_invalid_integer(self, integer: str):
+        with pytest.raises(InvalidSyntaxException, match=re.escape(str(NUMERICS_INVALID_CHAR))):
+            Script({"integer": integer}).resolve()