For most people, if you pay at least as much as your liability was the previous year, you're protected from any penalties or interest.

284

We wholeheartedly support keeping taxpayer information confidential.

257

When the $500,000 exclusion rule came into the law, a lot of people figured they'd never have that much gain, so they stopped keeping records of the improvements they made to the house. That could mean they'll wind up paying more tax than they should have.

144

They do have a business reputation they want to protect, because their sweet spot is returning clients. They might make a quick killing to sell the information once, then they basically will be out of business the next year.

141

It makes a lot of sense particularly if you're younger and not at your peak earning years. A high-income individual might want to think twice about enrolling in a Roth 401(k).

131