IRS Letter 3339C – Audit Reconsideration – Additional Substantiation Request
The IRS wants you to provide additional proof to support your request for audit reconsideration.
Type of Notice: Return accuracy
Likely next step: Address an IRS tax audit
Why you received IRS Letter 3339C
- You filed a tax return which was selected for audit.
- The IRS sent you notices regarding the final audit determination, but you did not respond. They assessed taxes.
- You requested audit reconsideration.
- You provided documentation to prove your position.
- The IRS sent Letter 3339C to request additional documentation.
Notice deadline: 30 days
If you miss the deadline: The IRS may deny the request for audit reconsideration or only a partial change will be made.
Want more help?
Your tax professional can deal with the IRS for you. Learn more about H&R Block’s Tax Audit & Notice Services. Or make an appointment for a free consultation with a local tax professional by calling 855-536-6504 or finding a local tax pro.
Get help from an IRS expert
H&R Block’s experts can solve any IRS problem, no matter how complex.
Learn what the IRS is looking for during an audit, the steps you should take to prepare for an IRS audit, and when it's best to get expert help.
Get the facts from H&R Block about the four types of IRS penalty relief, and which IRS penalty relief option may be best for your situation.
Learn the three main benefits of engaging a power of attorney to research your IRS account and resolve your tax problems. Get the facts from the experts at H&R Block.
Separate fact from fiction when it comes to IRS audits. Learn what causes tax audits, what happens during an audit, and what to do if you get an IRS letter.
Get the facts from H&R Block about IRS payment options when you can't pay your tax bill, including short-term extensions, monthly payment plans, and more.
How long you can expect your IRS audit to last depends on the type of audit and the scope. Learn how to efficiently wrap up an audit from the tax experts at H&R Block.