Can I sign a 433D? Do I need a 2848? Or is a check the box on the 1040 ok? My client filed a 2012 tax return with a balance due. I sent in form 9465 asking for $85 per month. The IRS sent a notice saying our offer was "too low" and set up a $70 per month payment plan. Computer errors!!!! They cancelled the direct withdrawal so I...