The IRS receives [copies of] those automatically [from your employer and brokerage firm], so if your return doesn't include them you could provoke an audit.

You have to be careful if you take large, non-cash contributions. You have to back them up with receipts.

Remember, you don't want to have any more correspondence with the IRS than is necessary.

They are focusing on taxpayers making $100,000. They want to get a return on those returns.