Fwiw most counties no longer require a bill of sale on private automobile transfer. Just a filled out title. Since they no longer tax the transaction on sale price but on blue book value. They don't care how good a deal you got, you'll be taxed on what they think it's worth.
Yep, I found that out the hard way with a 16' trailer I bought a few years back.
If land is sold, I know the realtor (if one is used) will have a record of the sale price, and the title company will as well, but I'm not sure who else would be privy to that information........ not the public for sure.
My interest...
Texas Realtors Assoc members has all that data available to them via MLS, but it's proprietary information and is not to be shared but at the last central appraisal district meeting I attended, they put a motion to the BoD to piggybackoff Travis County's contract with a big data gathering company so the local CAD could have records of what everything in the county was bought/sold for. (Travis County offered that option to my county, and presumably other counties as well)
The problem is, that same company sells that data to just about anybody and the whole thing has left a sour taste in my mouth.
There are currently 2-3 lawsuits going on in Travis County about how this company operates, and according to TRA, one of the issues is that the company somehow got access to MLS data and sold it to Travis County and it ended up in both the Travis County CAD AND the local tax office. Tax office and CAD, according to State Comptroller are mandated to operate completely independent of each other, with the CAD merely to appraise property, assign a market value to it and administer any exemptions WITHOUT any pressure or influence in regards to the county's monetary requirements to provide services. Sharing sale prices with the tax office seems to be going down a pretty slippery slope to me.
I was one of only 4 public citizens at that public SJ County meeting so I doubt many in this county know what their county is up to.