-A FREEZE
-E FREEZE
P- FREEZE
-G FREEZE
-R FREEZE
100

Normal Processing time for an amended return

What is 20 weeks

100

Number of responsibility codes

What is 4?
100

TC that indicates refund deletion (BMF only)

What is TC 842

100

Math Error 653

What is "We didnt allow the amount claimed as EITC, CTC, ACTC or COD?"

100

Letter Indicating that the TP's return is under review

What is CP 05?
200

I indicate the amended return went to exams (IM a TC)

TC 971 015

200

Responsibility code 4

What is a Frivolous Return?

200

These letters indicate who's involvement, Letter 4883c, 5071c, 5747c?

What is TPP? 

200

Math Error 572

What is "We didnt allow all or part of the amount you claimed as Residential Energy Credit"

200

TC that sets the -R freeze

What is TC 570?

300
TC that indicates the amended return is being processed by Accounts Management

What is TC 971 012

300

Letter sent to encourage TP to file a corrected return

What is Letter 3176c

300

TC indicates TP returned refund check

What is TC 841?

300

Math Error 615

What is " We changed your QBID....?"

300

We, TC 971 AC 140, AC 122,  indicate who's involvement

What is Automated Questionable Credit Indicators? 

400

I indicate a duplicate return was received (Im a TC) 

What is TC 976

400

TC that sets the -E freeze

What is TC 810?
400

Blocking series 77711, 77712, 77713, 77714 indicates who's involvment

What is Return Integrity Verification Operations (RIVO)? 

400

Math Error 271

What is "We changed the amount of Self Employment Tax on Page 2 of your tax return"?

400

Correspondence Letter Indicating Questionable Refund Hold

What is Letter 4464c? 
500

I indicate that a subsequent return was received (Im a TC)

What is TC 977

500

NPT for review

What is 154 days? 

500

TC that indicates portion of refund returned by FI / erroneous refund payment

What is TC 720?


500

Math Error 643

What is "We didnt allow your spouse's personal exemption because....ITIN has expired?" 

500

TC that releases/reverses a  -R freeze TC 570

What is TC 571?