diff --git a/assets/layers/bike_parking/bike_parking.json b/assets/layers/bike_parking/bike_parking.json
index bdc89e1a4..403fe0c6b 100644
--- a/assets/layers/bike_parking/bike_parking.json
+++ b/assets/layers/bike_parking/bike_parking.json
@@ -998,6 +998,16 @@
           "weeks",
           "months"
         ]
+      },
+      "charge": {
+        "quantity": "duration",
+        "inverted": true,
+        "denominations": [
+          "days",
+          "weeks",
+          "months",
+          "years"
+        ]
       }
     }
   ]
diff --git a/src/Logic/SimpleMetaTagger.ts b/src/Logic/SimpleMetaTagger.ts
index 90dd0b9a9..15d358668 100644
--- a/src/Logic/SimpleMetaTagger.ts
+++ b/src/Logic/SimpleMetaTagger.ts
@@ -435,7 +435,7 @@ export default class SimpleMetaTaggers {
                         () => feature.properties["_country"]
                     )
                     let canonical =
-                        denomination?.canonicalValue(value, defaultDenom == denomination) ??
+                        denomination?.canonicalValue(value, defaultDenom == denomination, unit.inverted) ??
                         undefined
                     if (canonical === value) {
                         break
diff --git a/src/Models/Denomination.ts b/src/Models/Denomination.ts
index c7d898191..f962d7b82 100644
--- a/src/Models/Denomination.ts
+++ b/src/Models/Denomination.ts
@@ -110,19 +110,21 @@ export class Denomination {
      * @param value the value from OSM
      * @param actAsDefault if set and the value can be parsed as number, will be parsed and trimmed
      *
+     * import Validators from "../UI/InputElement/Validators"
+     *
      * const unit = Denomination.fromJson({
      *               canonicalDenomination: "m",
      *               alternativeDenomination: ["meter"],
      *               human: {
      *                   en: "{quantity} meter"
      *               }
-     *           }, "test")
-     * unit.canonicalValue("42m", true) // =>"42 m"
-     * unit.canonicalValue("42", true) // =>"42 m"
-     * unit.canonicalValue("42 m", true) // =>"42 m"
-     * unit.canonicalValue("42 meter", true) // =>"42 m"
-     * unit.canonicalValue("42m", true) // =>"42 m"
-     * unit.canonicalValue("42", true) // =>"42 m"
+     *           }, Validators.get("float"), "test")
+     * unit.canonicalValue("42m", true, false) // =>"42 m"
+     * unit.canonicalValue("42", true, false) // =>"42 m"
+     * unit.canonicalValue("42 m", true, false) // =>"42 m"
+     * unit.canonicalValue("42 meter", true, false) // =>"42 m"
+     * unit.canonicalValue("42m", true, false) // =>"42 m"
+     * unit.canonicalValue("42", true, false) // =>"42 m"
      *
      * // Should be trimmed if canonical is empty
      * const unit = Denomination.fromJson({
@@ -131,22 +133,26 @@ export class Denomination {
      *               human: {
      *                   en: "{quantity} meter"
      *               }
-     *           }, "test")
-     * unit.canonicalValue("42m", true) // =>"42"
-     * unit.canonicalValue("42", true) // =>"42"
-     * unit.canonicalValue("42 m", true) // =>"42"
-     * unit.canonicalValue("42 meter", true) // =>"42"
+     *           }, Validators.get("float"), "test")
+     * unit.canonicalValue("42m", true, false) // =>"42"
+     * unit.canonicalValue("42", true, false) // =>"42"
+     * unit.canonicalValue("42 m", true, false) // =>"42"
+     * unit.canonicalValue("42 meter", true, false) // =>"42"
      *
      *
      */
-    public canonicalValue(value: string, actAsDefault: boolean): string {
+    public canonicalValue(value: string, actAsDefault: boolean, inverted: boolean): string {
         if (value === undefined) {
             return undefined
         }
-        const stripped = this.StrippedValue(value, actAsDefault)
+        const stripped = this.StrippedValue(value, actAsDefault, inverted)
         if (stripped === null) {
             return null
         }
+        if(inverted){
+            return (stripped + "/" + this.canonical).trim()
+
+        }
         if (stripped === "1" && this._canonicalSingular !== undefined) {
             return ("1 " + this._canonicalSingular).trim()
         }
@@ -160,7 +166,7 @@ export class Denomination {
      *
      * Returns null if it doesn't match this unit
      */
-    public StrippedValue(value: string, actAsDefault: boolean): string {
+    public StrippedValue(value: string, actAsDefault: boolean, inverted: boolean): string {
         if (value === undefined) {
             return undefined
         }
@@ -178,10 +184,16 @@ export class Denomination {
 
         function substr(key) {
             if (self.prefix) {
-                return value.substr(key.length).trim()
-            } else {
-                return value.substring(0, value.length - key.length).trim()
+                return value.substring(key.length).trim()
             }
+            let trimmed =            value.substring(0, value.length - key.length).trim()
+            if(!inverted){
+                return trimmed
+            }
+            if(trimmed.endsWith("/")){
+                trimmed = trimmed.substring(0, trimmed.length - 1).trim()
+            }
+            return trimmed
         }
 
         if (this.canonical !== "" && startsWith(this.canonical.toLowerCase())) {
diff --git a/src/Models/ThemeConfig/Json/LayerConfigJson.ts b/src/Models/ThemeConfig/Json/LayerConfigJson.ts
index 3b31068ff..a2053e097 100644
--- a/src/Models/ThemeConfig/Json/LayerConfigJson.ts
+++ b/src/Models/ThemeConfig/Json/LayerConfigJson.ts
@@ -519,6 +519,7 @@ export interface LayerConfigJson {
     /**
      * Either a list with [{"key": "unitname", "key2": {"quantity": "unitname", "denominations": ["denom", "denom"]}}]
      *
+     * Use `"inverted": true` if the amount should be _divided_ by the denomination, e.g. for charge over time (`€5/day`)
      *
      * @see UnitConfigJson
      *
@@ -526,7 +527,7 @@ export interface LayerConfigJson {
      */
     units?: (
         | UnitConfigJson
-        | Record<string, string | { quantity: string; denominations: string[]; canonical?: string }>
+        | Record<string, string | { quantity: string; denominations: string[]; canonical?: string, inverted?: boolean }>
     )[]
 
     /**
diff --git a/src/Models/Unit.ts b/src/Models/Unit.ts
index 8be68110f..2a82a8ee0 100644
--- a/src/Models/Unit.ts
+++ b/src/Models/Unit.ts
@@ -15,16 +15,19 @@ export class Unit {
     public readonly eraseInvalid: boolean
     public readonly quantity: string
     private readonly _validator: Validator
+    public readonly inverted: boolean
 
     constructor(
         quantity: string,
         appliesToKeys: string[],
         applicableDenominations: Denomination[],
         eraseInvalid: boolean,
-        validator: Validator
+        validator: Validator,
+        inverted: boolean = false
     ) {
         this.quantity = quantity
         this._validator = validator
+        this.inverted = inverted
         this.appliesToKeys = new Set(appliesToKeys)
         this.denominations = applicableDenominations
         this.eraseInvalid = eraseInvalid
@@ -73,7 +76,7 @@ export class Unit {
     static fromJson(
         json:
             | UnitConfigJson
-            | Record<string, string | { quantity: string; denominations: string[] }>,
+            | Record<string, string | { quantity: string; denominations: string[], inverted?: boolean }>,
         tagRenderings: TagRenderingConfig[],
         ctx: string
     ): Unit[] {
@@ -210,7 +213,7 @@ export class Unit {
     private static loadFromLibrary(
         spec: Record<
             string,
-            string | { quantity: string; denominations: string[]; canonical?: string }
+            string | { quantity: string; denominations: string[]; canonical?: string, inverted?: boolean }
         >,
         types: Record<string, ValidatorType>,
         ctx: string
@@ -222,7 +225,7 @@ export class Unit {
             if (typeof toLoad === "string") {
                 const loaded = this.getFromLibrary(toLoad, ctx)
                 units.push(
-                    new Unit(loaded.quantity, [key], loaded.denominations, loaded.eraseInvalid, validator)
+                    new Unit(loaded.quantity, [key], loaded.denominations, loaded.eraseInvalid, validator, toLoad["inverted"])
                 )
                 continue
             }
@@ -252,7 +255,7 @@ export class Unit {
                 const canonical = fetchDenom(toLoad.canonical).withValidator(validator)
                 denoms.unshift(canonical.withBlankCanonical())
             }
-            units.push(new Unit(loaded.quantity, [key], denoms, loaded.eraseInvalid, validator))
+            units.push(new Unit(loaded.quantity, [key], denoms, loaded.eraseInvalid, validator, toLoad["inverted"]))
         }
         return units
     }
@@ -274,7 +277,7 @@ export class Unit {
         }
         const defaultDenom = this.getDefaultDenomination(country)
         for (const denomination of this.denominationsSorted) {
-            const bare = denomination.StrippedValue(valueWithDenom, defaultDenom === denomination)
+            const bare = denomination.StrippedValue(valueWithDenom, defaultDenom === denomination, this.inverted)
             if (bare !== null) {
                 return [bare, denomination]
             }
@@ -287,10 +290,13 @@ export class Unit {
             return undefined
         }
         const [stripped, denom] = this.findDenomination(value, country)
+        const human = denom?.human
+        if(this.inverted ){
+            return human.Subs({quantity: stripped+"/"})
+        }
         if (stripped === "1") {
             return denom?.humanSingular ?? stripped
         }
-        const human = denom?.human
         if (human === undefined) {
             return stripped ?? value
         }
@@ -300,6 +306,10 @@ export class Unit {
 
     public toOsm(value: string, denomination: string) {
         const denom = this.denominations.find((d) => d.canonical === denomination)
+        if(this.inverted){
+            return value+"/"+denom._canonicalSingular
+        }
+
         const space = denom.addSpace ? " " : ""
         if (denom.prefix) {
             return denom.canonical + space + value
@@ -307,7 +317,7 @@ export class Unit {
         return value + space + denom.canonical
     }
 
-    public getDefaultDenomination(country: () => string) {
+    public getDefaultDenomination(country: () => string): Denomination {
         for (const denomination of this.denominations) {
             if (denomination.useIfNoUnitGiven === true) {
                 return denomination
diff --git a/src/UI/Popup/TagRendering/TagRenderingQuestion.svelte b/src/UI/Popup/TagRendering/TagRenderingQuestion.svelte
index 831bd109a..0f3faa293 100644
--- a/src/UI/Popup/TagRendering/TagRenderingQuestion.svelte
+++ b/src/UI/Popup/TagRendering/TagRenderingQuestion.svelte
@@ -178,7 +178,9 @@
           checkedMappings,
           tags.data
         )
-        console.log("Constructing change spec from", {freeform: $freeformInput, selectedMapping, checkedMappings, currentTags: tags.data}, " --> ", selectedTags)
+        if(state.featureSwitches.featureSwitchIsDebugging.data){
+          console.log("Constructing change spec from", {freeform: $freeformInput, selectedMapping, checkedMappings, currentTags: tags.data}, " --> ", selectedTags)
+        }
       } catch (e) {
         console.error("Could not calculate changeSpecification:", e)
         selectedTags = undefined
diff --git a/src/UI/Popup/UnitInput.svelte b/src/UI/Popup/UnitInput.svelte
index 4efe8500f..f299f75fa 100644
--- a/src/UI/Popup/UnitInput.svelte
+++ b/src/UI/Popup/UnitInput.svelte
@@ -64,10 +64,14 @@
   )
 </script>
 
+{#if unit.inverted}
+  <div class="bold px-2">/</div>
+{/if}
+
 <select bind:value={$selectedUnit}>
   {#each unit.denominations as denom (denom.canonical)}
     <option value={denom.canonical}>
-      {#if $isSingle}
+      {#if $isSingle || unit.inverted}
         <Tr t={denom.humanSingular} />
       {:else}
         <Tr t={denom.human.Subs({ quantity: "" })} />
diff --git a/test/Models/Units.spec.ts b/test/Models/Units.spec.ts
index 278a57ef2..c2329c47d 100644
--- a/test/Models/Units.spec.ts
+++ b/test/Models/Units.spec.ts
@@ -1,6 +1,7 @@
 import { Unit } from "../../src/Models/Unit"
 import { Denomination } from "../../src/Models/Denomination"
 import { describe, expect, it } from "vitest"
+import Validators from "../../src/UI/InputElement/Validators"
 
 describe("Unit", () => {
     it("should convert a value back and forth", () => {
@@ -13,14 +14,36 @@ describe("Unit", () => {
                     nl: "{quantity} megawatt",
                 },
             },
+            Validators.get("float"),
             "test"
         )
 
-        const canonical = denomintion.canonicalValue("5", true)
+        const canonical = denomintion.canonicalValue("5", true, false)
         expect(canonical).toBe("5 MW")
-        const units = new Unit("quantity", ["key"], [denomintion], false)
+        const units = new Unit("quantity", ["key"], [denomintion], false, Validators.get("float"))
         const [detected, detectedDenom] = units.findDenomination("5 MW", () => "be")
         expect(detected).toBe("5")
         expect(detectedDenom).toBe(denomintion)
     })
+
+    it("should convert an inverted value back and forth", () => {
+        const denomintion = Denomination.fromJson(
+            {
+                canonicalDenomination: "year",
+                human: {
+                    en: "{quantity} year",
+                    nl: "{quantity} year",
+                },
+            },
+            Validators.get("float"),
+            "test"
+        )
+
+        const canonical = denomintion.canonicalValue("5", true, true)
+        expect(canonical).toBe("5/year")
+        const unit = new Unit("quantity", ["key"], [denomintion], false, Validators.get("float"), true)
+        const [detected, detectedDenom] = unit.findDenomination("5/year", () => "be")
+        expect(detected).toBe("5")
+        expect(detectedDenom).toBe(denomintion)
+    })
 })