diff --git a/docs/Prices.md b/docs/Prices.md
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@@ -0,0 +1,89 @@
+[**◀ Home**](index.md)
+
+# Prices
+
+This provides an overview and documentation for the [prices](https://swissrets.ch/docs/noNamespace/complexType/prices.html) tag.
+
+## Explanation
+
+Prices defined in a property are essential. Because of it's inherit complexity and to make sure the values are understood correctly please refer to this guide as to what actually means what.
+
+## Fixed price (buy)
+
+Property for sale with a fixed price.
+* **extra**: TODO: Good question? Is this similar to yearlyOperationAndMaintenanceCosts?
+* **wirPercentage**: The percententage of the gross price which has to paid in WIR Franc electronic currency.
+
+```xml
+
+ active
+
+
+ 850000
+ 25000
+ 5
+
+
+
+```
+
+## Auction
+
+Property for sale within an auction. Bidders can consequently increase the current standing of the auction price. The last bidder usually wins.
+
+The element `` has the following distinctions:
+
+* **start:**: The time the property is up for auction and for sale.
+* **expiration:**: The time when the property can not be auctioned any longer and gets disabled.
+* **minimalIncrease:**: To a amount that is required for each bid to increase.
+* **value:**: The starting price
+
+```xml
+
+ active
+
+ 745
+
+
+```
+
+## Bidding process
+
+Property for sale within a bidding war. Here anyone can bid a sum that is larger or equal to the asking price. The bidder with the largest commitment usually wins.
+
+The element `` has the following distinctions:
+
+* **start:**: The time that bidding can commence.
+* **bindingStart**: The start where offers become legally binding.
+* **expiration:**: The time when the property gets removed from the bidding War.
+* **value:**: The minimal asking price
+
+```xml
+
+ active
+
+ 745
+
+
+```
+
+## Property for rent.
+
+* **gross**: The total price (net + extra)
+* **net**: The cost minus extra costs (gross - extra)
+* **extra**: the difference between gross and net (gross - net)
+
+Usually only two are required and the third can be calculated based on the other two. But the XML generator can choose to provide all three.
+
+```xml
+
+ active
+
+
+ 8500
+ 7500
+ 1000
+
+
+
+```
diff --git a/docs/index.md b/docs/index.md
index d9c5a5f..a47a330 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -25,6 +25,7 @@ Schema location declaration for validation.
1. Details
- [Attachments](./Attachments.md) - images, documents, links
- [Availability](Availability.md) - lifecycle states
+ - [Prices](Prices.md) - Some clarifications for pricings (buy, rent, auction, bidding)
- [Categories](Categories.md) - categorization
- [Characteristics](./Characteristics.md) - facts and features
- [Applicables](./Characteristics.md#type-applicable)
diff --git a/schema/schema.xsd b/schema/schema.xsd
index 80695a3..8601fa8 100644
--- a/schema/schema.xsd
+++ b/schema/schema.xsd
@@ -730,6 +730,21 @@
+
+
+
+
+
+
+
+
+ Starting price for a bidding war.
+
+
+
+
+
+