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Schedule K
(Form 990)
Department of the Treasury
Internal Revenue Service
Supplemental Information on Tax-Exempt Bonds
SchKMediumBullet Complete if the organization answered "Yes" to Form 990, Part Ⅵ, line 24a. Provide descriptions,
explanations, and any additional information in Part Ⅵ.
SchKMediumBullet Attach to Form 990.
SchKMediumBulletGo to www.irs.gov/Form990 for instructions and the latest information.
OMB No. 1545-0047
2021
Open to Public
Inspection
Name of the organization
TRUSTEES OF BOSTON COLLEGE
 
Employer identification number
04-2103545
Part Ⅰ
Bond Issues
(a) Issuer name (b) Issuer EIN (c) CUSIP # (d) Date issued (e) Issue price (f) Description of purpose (g) Defeased (h) On
behalf of
issuer		 (i) Pool
financing
Yes No Yes No Yes No
A MASS DFA - SERIES S
  		04-3431814 57583UZQ4 08-20-2013 156,252,258 SEE PART VI   X   X   X
B MASS DFA - SERIES T
  		04-3431814 57584XK42 01-31-2017 141,202,852 SEE PART VI   X   X   X
C MASS DFA - SERIES U
  		04-3431814 57584YZH5 04-02-2020 187,464,608 SEE PART VI   X   X   X
D MASS DFA - Series V
  		04-3431814 57584YN54 06-24-2021 165,003,907 See Part VI   X   X   X
Part Ⅱ
Proceeds
A B C D
1 Amount of bonds retired .................. 53,830,000 0 10,560,000 0
2 Amount of bonds legally defeased .............. 0 0 0 0
3 Total proceeds of issue .................. 156,256,983 141,202,852 187,464,608 165,007,818
4 Gross proceeds in reserve funds ............. 0 0 0 0
5 Capitalized interest from proceeds ............. 3,639,607 0 0 2,111,204
6 Proceeds in refunding escrows ............... 0 0 135,980,000 0
7 Issuance costs from proceeds ............... 676,551 922,840 1,057,037 0
8 Credit enhancement from proceeds ............. 0 0 0 0
9 Working capital expenditures from proceeds ............. 0 0 0 0
10 Capital expenditures from proceeds ............. 56,365,583 0 0 159,990,507
11 Other spent proceeds ............. 95,575,242 140,280,012 50,427,571 0
12 Other unspent proceeds ............. 0 0 0 2,906,107
13 Year of substantial completion ............. 2016 2010 2014 2022
Yes No Yes No Yes No Yes No
14 Were the bonds issued as part of a current refunding issue of tax-exempt
bonds (or, if issued prior to 2020, a current refunding issue)? ........ 		X     X X     X
15 Were the bonds issued as part of an advance refunding issue of taxable
bonds (or, if issued prior to 2020, an advance refunding issue)? ........ 		  X X     X   X
16 Has the final allocation of proceeds been made? .......... X   X   X   X  
17 Does the organization maintain adequate books and records to support the final allocation of proceeds? .................. X   X   X   X  
For Paperwork Reduction Act Notice, see the Instructions for Form 990.
Cat. No. 50193E
Schedule K (Form 990) 2021

Schedule K (Form 990) 2021
Page 2
Part Ⅲ
Private Business Use
A B C D
Yes No Yes No Yes No Yes No
1 Was the organization a partner in a partnership, or a member of an LLC, which owned property financed by tax-exempt bonds? .............   X   X   X   X
2 Are there any lease arrangements that may result in private business use of bond-financed property? ............... X   X   X   X  
3a Are there any management or service contracts that may result in private business use of bond-financed property? ............. X   X   X   X  
b If "Yes" to line 3a, does the organization routinely engage bond counsel or other outside counsel to review any management or service contracts relating to the financed property? X   X   X   X  
c Are there any research agreements that may result in private business use of bond-financed property? ............. X   X   X   X  
d If "Yes" to line 3c, does the organization routinely engage bond counsel or other outside counsel to review any research agreements relating to the financed property? X   X   X   X  
4 Enter the percentage of financed property used in a private business use by entities other than a section 501(c)(3) organization or a state or local government ....SchKMediumBullet 0.900 % 1.440 % 0.140 % 0.530 %
5 Enter the percentage of financed property used in a private business use as a result of unrelated trade or business activity carried on by your organization, another section 501(c)(3) organization, or a state or local government ......... SchKMediumBullet        
6 Total of lines 4 and 5 ............. 0.900 % 1.440 % 0.140 % 0.530 %
7 Does the bond issue meet the private security or payment test? ...   X   X   X   X
8a Has there been a sale or disposition of any of the bond-financed property to a nongovernmental person other than a 501(c)(3) organization since the bonds were issued?.............   X   X   X   X
b If "Yes" to line 8a, enter the percentage of bond-financed property sold or disposed of. ..        
c If "Yes" to line 8a, was any remedial action taken pursuant to Regulations sections 1.141-12 and 1.145-2? .............   X   X   X   X
9 Has the organization established written procedures to ensure that all nonqualified bonds of the issue are remediated in accordance with the requirements under
Regulations sections 1.141-12 and 1.145-2? ........ 		X   X   X   X  
Part Ⅳ
Arbitrage
A B C D
Yes No Yes No Yes No Yes No
1 Has the issuer filed Form 8038-T, Arbitrage Rebate, Yield Reduction and Penalty in Lieu of Arbitrage Rebate? ...   X   X   X   X
2 If "No" to line 1, did the following apply? ....
a Rebate not due yet? .......         X   X  
b Exception to rebate? ........                
c No rebate due? ......... X   X          
If "Yes" to line 2c, provide in Part Ⅵ the date the rebate
computation was performed ......
3 Is the bond issue a variable rate issue? .....   X   X   X   X
Schedule K (Form 990) 2021

Schedule K (Form 990) 2021
Page 3
Part Ⅳ
Arbitrage (Continued)
A B C D
Yes No Yes No Yes No Yes No
4a Has the organization or the governmental issuer entered into a qualified hedge with respect to the bond issue?   X   X   X   X
b Name of provider .......... 0
  		0
  		0
  		0
 
c Term of hedge .........        
d Was the hedge superintegrated? ......                
e Was the hedge terminated? ........                
5a Were gross proceeds invested in a guaranteed investment contract (GIC)?   X   X   X   X
b Name of provider .......... 0
  		0
  		0
  		0
 
c Term of GIC .........        
d Was the regulatory safe harbor for establishing the fair market value of the GIC satisfied? ........                
6 Were any gross proceeds invested beyond an available temporary period?   X   X   X   X
7 Has the organization established written procedures to monitor the requirements of section 148? ... X   X   X   X  
Part Ⅴ
Procedures To Undertake Corrective Action
--------------------------------------------------------------------------------------------------------------- A B C D
Yes No Yes No Yes No Yes No
Has the organization established written procedures to ensure that violations of federal tax requirements are timely identified and corrected through the voluntary closing agreement program if self-remediation is not available under applicable regulations? X   X   X   X  
Part Ⅵ
Supplemental Information. Provide additional information for responses to questions on Schedule K. (See instructions).
Return Reference Explanation
SCHEDULE K, PART I, COLUMN F A. REFUNDING MHEFA SERIES N (9/04/03) - CONSTRUCTION, RENOVATION AND EQUIPMENT FOR VARIOUS BUILDINGS ON MULTIPLE CAMPUSES. B. ADVANCE REFUNDING OF SERIES P (07/26/07) - CONSTRUCTION, RENOVATION, AND EQUIPMENT FOR VARIOUS BUILDINGS ON MULTIPLE CAMPUSES. C. REFUNDING PORTION OF SERIES M-1, SERIES Q1 AND Q2, AND SERIES R1 AND R2 - CONSTRUCTION, RENOVATION, AND EQUIPMENT FOR VARIOUS BUILDINGS ON MULTIPLE CAMPUSES. D. NEW MONEY ISSUANCE - CONSTRUCTION, RENOVATION, AND EQUIPMENT FOR VARIOUS BUILDINGS ON MULTIPLE CAMPUSES. PART II, LINE 3 THE DIFFERENCE BETWEEN THE AMOUNT OF TOTAL PROCEEDS AND THE ISSUE PRICE IN PART I IS THE RESULT OF INVESTMENT EARNINGS. Part IV, 2c. The rebate calculation dates are follows: Series S: 8/31/2016; SERIES T: 12/31/2020
Schedule K (Form 990) 2021

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