Important Numbers for 2008

The highest estate tax rate remains at 45% and the exemption amount (the tax free part) also remains at $2 million. Meanwhile, in an effort to reduce your estate, you may give $12,000 under the annual exclusion.

For retirement plans, you can defer up to $15,500 through a 401(k) and $10,500 through a SIMPLE plan. Meanwhile, the IRA contribution limits increase to $5,000. All three retirement plans have higher limits if you above 50 ($20,500 for 401(k), $13,000 for SIMPLE, and $6,000 for IRA). Remember that you must have earned income to be eligible for those plans.

Speaking of earned income, the Social Security taxable wage limit has increased to $102,000. It'll be a little later in the year, if ever, before you see those taxes disappear from your check. If you are under the age of 65 and retired (lucky you!), you can earn up to $13,560 without losing your benefits.

Meanwhile, the kiddie tax is coming after your little ones that don't actually work for their income. The threshold increases to $1,800 for children up to the age of 19 unless they are full-time students, in which case the age limit is 24 years old.

But if you have a nanny or household help, you have to withhold taxes on wages over $1,600.