Command Code BMFOL Return Form 3520 Display
Internal Revenue Manual Part 2. Information Technology · 2026-10-03 edition · updated 2026-10-04 · United States
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LINE
POSITION
DESCRIPTION AND VALIDITY
1
01-05
Command Code: BMFOL or BMFOR
1
06
Command Definer Code: R
1
07-16
EIN
1
18-19
MFT
1
20-25
Tax Period
1
26-28
Plan Number
1
59-62
Name Control
1
76-80
Potentially Dangerous Taxpayer Indicator: PDT
Caution Indicator:CAU
2
01-17
DLN
2
71-72
Cycle of Latest Update
2
76-80
≡ ≡ ≡ ≡ ≡
3
01-09
Record From Retention Register
3
11-45
First Name Line UNRECOVERABLE RETENTION REGISTER for BMFOR)
3
47-73
Filing Requirements (Up to Four)-Plus Sign (+) if More (blank for BMFOR)
5
04-06
Substitute for Return (SFR) Indicator
5
08-17
Assessment Date
5
19-24
Transaction Cycle
5
27-47
Remittance Amount
5
49-58
Transaction Date
5
60-80
Total Tax Liability Amount
6
15
Designee Checkbox
blank = Insignificant
1 = Checkbox checked on return
6
32-36
Designee Pin
6
49-60
Preparer Phone Number
7
11-25
Audit Codes
7
45-80
Return Process Codes
8
11
Preparer Checkbox
8
28-36
Preparer PTIN
8
49-57
Preparer EIN
8
72-73
Foreign Code
9
28-37
Correspondence Received Date:
9
52
RPS Indicator
9
78
Math Status Code
10
20
Months Delinquent
The number of months for which a delinquency penalty was assessed
10
42-47
Taxpayer Notice Codes
10
73
Penalty and Interest Code
11
23-32
Alpha Condition Codes
11
49
Return Type
11
66-67
US Agent Code
11
78-80
ISSC Code
12
19-39
Tax per Taxpayer
12
65
≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡
13
19-39
Tax Shown on Return
13
60-80
Tax Assessed on Return
14
20-59
Name of Decedent
14
67-78
TIN of Decedent
15
20-59
Name of Creator of the Trust
15
67-78
TIN of Creator of the Trust
16
20-59
Name of Other Trust Owner
16
67-78
TIN of Other Trust Owner
17
20-59
Name of First Beneficiary Listed
17
67-78
TIN of First Beneficiary Listed
18
20-59
Name of Second Beneficiary Listed
18
67-78
TIN of Second Beneficiary Listed
19
20-59
Name of First Trustee Named
19
67-78
TIN of First Trustee Named
20
20-59
Name of Second Trustee Named
21
14-16
Auto Ext Indicator
24
21-23
Current Page Number
24
28-30
Last Page Number
24
48-50
Next Page Number
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