The short-term gain is often outweighed by the long-term cost
An under-reported contract looks like it only benefits the seller by lowering their immediate tax bill, but for the buyer it can mean a lower recorded purchase price that raises their own future tax burden when they sell -- often making it a bad deal in the long run for at least one side. As transaction-reporting systems get more sophisticated, the odds of detection are not small either, so this deserves careful judgment.
Understand the proper reporting process instead
If you are unsure about the correct way to report a property transaction price, it is worth taking the time to understand the standard reporting requirements around capital gains tax on a property sale so you know what "doing it right" actually looks like.
Frequently Asked Questions
Is there a way to undo an under-reported contract that has already been filed?
Depending on the situation, an amended or corrected filing may be possible in some cases, but this requires professional judgment specific to your circumstances. Consulting a tax professional or the relevant tax authority is the safer path.
What should I do if a real estate agent suggests an under-reported contract?
An agent recommending or facilitating a false contract can itself be a violation of applicable law. Insist on a proper, accurate transaction filing, and consider working with a different agent if necessary.