Is ti possible to buy a perpetual license?
Autodesk perpetual licenses end of sales is in two dates:
1. Stand-alone products and products from the LT to 31 January 2016
2. product packages (suites) to July 31, 2016

What is a maintenance plan or subscription to a perpetual license?
Earlier Maintenance subscription provides upgrades to new versions during the contract duration, add-ons published between versions, promotion and application of CAD Studio CS + , option use previous versions, licenses for home use and other benefits. 

What is a renewal of the contract?
Renew the subscription to a permanent license - maintenance - or rent after the expiry of the current rental or maintenance. For the extension, it must purchase the appropriate renewal.

How does it differ rent from perpetual licenses?
Rent license - Subscription, formerly Desktop Subscription is providing software licenses (functionally identical) only for a defined period of time after the trial license expires. Before the expiry it can be extended - renew . Within the rental customer receives similar benefits as in the case of a maintenance plan to a permanent license.

The payment for renting is a one-off?
Yes, for rental price is valid for the entire period. The period is always mentioned in the title option after selecting variants then you can see it in the product name.

What happens when the rent expires?
After the end of the period for which rent was purchased, the product stops working. For its further use, you must purchase renewal (extension) before the end of the previous period. After the end of the period, you can switch to another product that is better for your needs, for example: instead of AutoCAD LT choose Revit LT, Inventor LT or Fusion.

It is the license rent only for one computer?
Rented software can be installed on multiple computers, but it can use only one user. The user is identified by a unique account name Autodesk ID.

What's CS+?
Package of bonus products and services provided only by CAD Studio to Autodesk products. Includes in particular: add-on applications (by product), block libraries, families, models, materials, templates, tutorials, access to CAD Studio helpdesk, database access, VIP tips. 

How can I get technical support for products purchased?
Technical help using purchased software applications can be found on the CAD studio Helpdesk and portal

Can I pay without VAT or refund VAT?
If you are buying as company (EU countries only) with valid VAT ID in EU, you can pay by wire without tax. In this case please ask for approval by e-mail to you pay by card you can refund taxby EU law.

Where can I find the current Autodesk terms?
The Autodesk website: Terms of Autodesk Subscription for a single user

What is the difference between AutoCAD and AutoCAD LT?
LT version does not support some 3D functions, some advanced features and no add-on applications.