The advantage to Fixed Asset Manager is the ability to create Reports.  For example you can group assets into categories:  like furniture, equipment, land improvements, etc.  whereas the tax software just gives you a date sorted list.  Also, for your question if the client bought 20 of the same item (e.g. exercise bikes) you could enter the total purchase as one item. Then in the Tools section you can have that item split into 20 lines.  After that you would delete the master 20 item asset.  Same with disposals.  You can sell a lot of assets (as one line and then in Tools apportion it automatically.   I also use it on clients with a ton of assets but I did have one client with 3,500 trailers each with a separate ID and it blew up the software. ProSeries told me that their limit was around 1,900 (this was a few years back).