If you cannot pay all the taxes that you owe, you may be able to:
Make monthly payments (You must have filed all past due returns)
The IRS usually will give you 60 months to pay your tax bill on a payment plan.
Most payment plans are accepted unless you have defaulted on a previous plan in the pass.
If you need help filing past due tax returns, Taxes Will Travel.com at http://taxeswilltravel.com will help you complete the necessary paperwork.
The IRS can collect outstanding taxes for ten years.