diff --git a/kibot/var_base.py b/kibot/var_base.py
index 976789fd..cab5ee23 100644
--- a/kibot/var_base.py
+++ b/kibot/var_base.py
@@ -4,6 +4,8 @@
 # License: GPL-3.0
 # Project: KiBot (formerly KiPlot)
 from .registrable import RegVariant
+from .optionable import Optionable
+from .fil_base import BaseFilter
 from .macros import macros, document  # noqa: F401
 
 
@@ -20,3 +22,34 @@ class BaseVariant(RegVariant):
             """ A comment for documentation purposes """
             self.file_id = ''
             """ Text to use as the """
+            # * Filters
+            self.exclude_filter = Optionable
+            """ [string|list(string)=''] Name of the filter to exclude components from BoM processing.
+                Use '_mechanical' for the default KiBoM behavior """
+            self.dnf_filter = Optionable
+            """ [string|list(string)=''] Name of the filter to mark components as 'Do Not Fit'.
+                Use '_kibom_dnf' for the default KiBoM behavior """
+            self.dnc_filter = Optionable
+            """ [string|list(string)=''] Name of the filter to mark components as 'Do Not Change'.
+                Use '_kibom_dnc' for the default KiBoM behavior """
+
+    def config(self):
+        super().config()
+        # exclude_filter
+        self.exclude_filter = BaseFilter.solve_filter(self.exclude_filter, 'exclude_filter')
+        # dnf_filter
+        self.dnf_filter = BaseFilter.solve_filter(self.dnf_filter, 'dnf_filter')
+        # dnc_filter
+        self.dnc_filter = BaseFilter.solve_filter(self.dnc_filter, 'dnc_filter')
+
+    def filter(self, comps):
+        # Apply all the filters
+        if self.exclude_filter:
+            for c in comps:
+                c.in_bom = self.exclude_filter.filter(c)
+        if self.dnf_filter:
+            for c in comps:
+                c.fitted = self.dnf_filter.filter(c)
+        if self.dnc_filter:
+            for c in comps:
+                c.fixed = self.dnc_filter.filter(c)
diff --git a/kibot/var_ibom.py b/kibot/var_ibom.py
index 4c0e31f1..5c3e5a07 100644
--- a/kibot/var_ibom.py
+++ b/kibot/var_ibom.py
@@ -62,6 +62,7 @@ class IBoM(BaseVariant):  # noqa: F821
         return False
 
     def filter(self, comps):
+        super().filter(comps)
         logger.debug("Applying IBoM style variants `{}`".format(self.name))
         # Make black/white lists case insensitive
         self.variants_whitelist = [v.lower() for v in self.variants_whitelist]
diff --git a/kibot/var_kibom.py b/kibot/var_kibom.py
index 069c88e7..44aba572 100644
--- a/kibot/var_kibom.py
+++ b/kibot/var_kibom.py
@@ -64,6 +64,7 @@ class KiBoM(BaseVariant):  # noqa: F821
         return not exclusive
 
     def filter(self, comps):
+        super().filter(comps)
         logger.debug("Applying KiBoM style variants `{}`".format(self.name))
         for c in comps:
             if not (c.fitted and c.in_bom):