American Century Government Income Trust N-CEN Annual report (registered investment company)

Pursuant to the Fund’s procedures adopted under Rule 10f-3, the Fund’s Board of Directors/Trustees receives a quarterly report in the form of a checklist as to the satisfaction of the applicable conditions of paragraph (c)(1) through (c)(8) of Rule 10f-3.

Fund	Inflation-Adjusted Bond Fund
Issuer	Apollo Management Holdings, L.P.
Ticker/Sedol	03765HAF8
Principal Amount (US$)	$498,520,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$2,721,919.20
Amount Purchased (Foreign$)	N/A
Trade Date	6/2/2020
Price (US$)	$99.704
Price-Foreign	N/A
Underwriter	Citigroup Global Markets Inc.
Other Syndicate Members:	Goldman Sachs & Co. LLC, BofA Securities, Inc., Apollo Global Securities, LLC, Barclays Capital Inc, BNP Paribas Securities Corp., U.S. Bancorp Investments, Inc., BMO Capital Markets Corp, Credit Suisse Securities (USA) LLC, Deutsche Bank Securities Inc., HSBC Securities (USA) Inc, J.P. Morgan Securities LLC, Mizuho Securities USA LLC, Morgan Stanley & Co. LLC, MUFG Securities Americas Inc, Nomura Securities International, Inc, RBC Capital Markets, LLC, SG Americas Securities, LLC, UBS Securities LLC, Wells Fargo Securities, LLC
Underwriting Spread	0.650%
Currency	USD

Fund	Inflation-Adjusted Bond Fund
Issuer	Bank of America Corp.
Ticker/Sedol	06051GJD2
Principal Amount (US$)	$3,000,000,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$4,610,000.00
Amount Purchased (Foreign$)	N/A
Trade Date	6/16/2020
Price (US$)	$100.00
Price-Foreign	N/A
Underwriter	BofA Securities, Inc.
Other Syndicate Members:	ABN AMRO Securities (USA) LLC, ANZ Securities, Inc., Banca IMI S.p.A., Bankinter S.A., BBVA Securities Inc., BMO Capital Markets Corp., Capital One Securities, Inc., CIBC World Markets Corp., Citizens Capital Markets, Inc., Commerz Markets LLC, Commonwealth Bank of Australia, Credit Agricole Securities (USA) Inc., Danske Markets Inc., DBS Bank Ltd., DZ Financial Markets LLC, Huntington Securities, Inc., ICBC Standard Bank Plc, ING Financial Markets LLC, KeyBanc Capital Markets Inc., Lloyds Securities Inc., Mizuho Securities USA LLC, MUFG Securities Americas Inc., nabSecurities, LLC, Natixis Securities Americas LLC, NatWest Markets Securities Inc., Nomura Securities International, Inc., Nordea Bank ABP, Rabo Securities USA, Inc., RBC Capital Markets, LLC, RB International Markets (USA) LLC, Regions Securities LLC, Santander Investment Securities Inc., SMBC Nikko Securities America, Inc., Standard Chartered Bank, SG Americas Securities, LLC, TD Securities (USA) LLC, UniCredit Capital Markets LLC, Academy Securities, Inc., Bancroft Capital, LLC, CastleOak Securities, L.P., Siebert Williams Shank & Co., LLC
Underwriting Spread	0.350%
Currency	USD

Fund	Inflation-Adjusted Bond Fund
Issuer	Bank of America Corp.
Ticker/Sedol	06051GJE0
Principal Amount (US$)	$3,000,000,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$4,200,000.00
Amount Purchased (Foreign$)	N/A
Trade Date	6/16/2020
Price (US$)	$100.00
Price-Foreign	N/A
Underwriter	BofA Securities, Inc.
Other Syndicate Members:	ABN AMRO Securities (USA) LLC, ANZ Securities, Inc., Banca IMI S.p.A., Bankinter S.A., BBVA Securities Inc., BMO Capital Markets Corp., Capital One Securities, Inc., CIBC World Markets Corp., Citizens Capital Markets, Inc., Commerz Markets LLC, Commonwealth Bank of Australia, Credit Agricole Securities (USA) Inc., Danske Markets Inc., DBS Bank Ltd., DZ Financial Markets LLC, Huntington Securities, Inc., ICBC Standard Bank Plc, ING Financial Markets LLC , KeyBanc Capital Markets Inc., Lloyds Securities Inc., Mizuho Securities USA LLC, MUFG Securities Americas Inc., nabSecurities, LLC, Natixis Securities Americas LLC, NatWest Markets Securities Inc., Nomura Securities International, Inc., Nordea Bank ABP, Rabo Securities USA, Inc., RBC Capital Markets, LLC, RB International Markets (USA) LLC, Regions Securities LLC, Santander Investment Securities Inc., SMBC Nikko Securities America, Inc., Standard Chartered Bank, SG Americas Securities, LLC, TD Securities (USA) LLC, UniCredit Capital Markets LLC, Academy Securities, Inc., Bancroft Capital, LLC, CastleOak Securities, L.P., Siebert Williams Shank & Co., LLC
Underwriting Spread	0.750%
Currency	USD

Fund	Inflation-Adjusted Bond Fund
Issuer	Citigroup Inc.
Ticker/Sedol	172967MS7
Principal Amount (US$)	$3,500,000,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$2,600,000.00
Amount Purchased (Foreign$)	N/A
Trade Date	5/26/2020
Price (US$)	$100.00
Price-Foreign	N/A
Underwriter	Citigroup Global Markets Inc.
Other Syndicate Members:	Banca IMI S.p.A., BMO Capital Markets Corp., Deutsche Bank Securities Inc., Huntington Securities, Inc., Lloyds Securities Inc., NatWest Markets Securities Inc., RBC Capital Markets, LLC, Scotia Capital (USA) Inc., SG Americas Securities, LLC, SMBC Nikko Securities America, Inc., UBS Securities LLC, UniCredit Capital Markets LLC, ABN AMRO Securities (USA) LLC, Academy Securities, Inc., Bank of China Limited, London Branch, BBVA Securities Inc., Cabrera Capital Markets LLC, Capital One Securities, Inc., CastleOak Securities, L.P., CIBC World Markets Corp., Citizens Capital Markets, Inc., Commonwealth Bank of Australia, Credit Suisse Securities (USA) LLC, DBS Bank Ltd., Desjardins Securities Inc., Fifth Third Securities, Inc., HSBC Securities (USA) Inc., ICBC Standard Bank Plc, ING Financial Markets LLC, KeyBanc Capital Markets Inc., Mischler Financial Group, Inc., nabSecurities, LLC, National Bank of Canada Financial Inc., Natixis Securities Americas LLC, Nomura Securities International, Inc., Regions Securities LLC, Roberts & Ryan Investments Inc., Santander Investment Securities Inc., TD Securities (USA) LLC, U.S. Bancorp Investments, Inc.
Underwriting Spread	0.425%
Currency	USD

Fund	Government Bond Fund
Issuer	Federal Home Loan Bank
Ticker/Sedol	3130AJHU6
Principal Amount (US$)	$1,492,560,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$3,000,000.00
Amount Purchased (Foreign$)	N/A
Trade Date	4/15/2020
Price (US$)	$99.504
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Nomura Securities International, Inc.
Underwriting Spread	0.100%
Currency	USD

Fund	Short-Term Government Fund
Issuer	Federal Home Loan Bank
Ticker/Sedol	3130AJHU6
Principal Amount (US$)	$1,492,560,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$1,500,000.00
Amount Purchased (Foreign$)	N/A
Trade Date	4/15/2020
Price (US$)	$99.504
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Nomura Securities International, Inc
Underwriting Spread	0.100%
Currency	USD

Fund	Government Bond Fund
Issuer	Freddie Mac
Ticker/Sedol	3137EAER6
Principal Amount (US$)	$3,498,530,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$18,292,314.00
Amount Purchased (Foreign$)	N/A
Trade Date	5/5/2020
Price (US$)	$99.958
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Citigroup Global Markets Inc., Nomura Securities International, Inc., Blaylock Van, LLC, Drexel Hamilton, LLC, Great Pacific Securities, Loop Capital Markets LLC, Samuel A. Ramirez & Company, Inc., Stern Brothers
Underwriting Spread	0.075%
Currency	USD

Fund	Short-Term Government Fund
Issuer	Freddie Mac
Ticker/Sedol	3137EAER6
Principal Amount (US$)	$3,498,530,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$12,894,582.00
Amount Purchased (Foreign$)	N/A
Trade Date	5/5/2020
Price (US$)	$99.958
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Citigroup Global Markets Inc., Nomura Securities International, Inc., Blaylock Van, LLC, Drexel Hamilton, LLC, Great Pacific Securities, Loop Capital Markets LLC, Samuel A. Ramirez & Company, Inc., Stern Brothers
Underwriting Spread	0.075%
Currency	USD

Fund	Government Bond Fund
Issuer	Fannie Mae
Ticker/Sedol	3135G04Z3
Principal Amount (US$)	$4,989,650,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$11,975,160.00
Amount Purchased (Foreign$)	N/A
Trade Date	6/17/2020
Price (US$)	$99.793
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Loop Capital Markets, LLC, Nomura Securities International, Inc., TD Securities (USA) LLC, CastleOak Securities, L.P., Mischler Financial Group Inc., Samuel A. Ramirez & Company, Inc., Stern Brothers & Co, Tribal Capital Markets, LLC
Underwriting Spread	0.125%
Currency	USD

Fund	Short-Term Government Fund
Issuer	Fannie Mae
Ticker/Sedol	3135G04Z3
Principal Amount (US$)	$4,989,650,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$ 2,494,825.00
Amount Purchased (Foreign$)	N/A
Trade Date	6/17/2020
Price (US$)	$99.793
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Loop Capital Markets, LLC, Nomura Securities International, Inc., TD Securities (USA) LLC, CastleOak Securities, L.P., Mischler Financial Group Inc., Samuel A. Ramirez & Company, Inc., Stern Brothers & Co, Tribal Capital Markets, LLC
Underwriting Spread	0.125%
Currency	USD

Fund	Government Bond Fund
Issuer	Federal Home Loan Bank
Ticker/Sedol	3130AK5E2
Principal Amount (US$)	$997,000,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$3,788,600.00
Amount Purchased (Foreign$)	N/A
Trade Date	9/10/2020
Price (US$)	$99.700
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Nomura Securities International, Inc., Academy Securities, Inc., Citigroup Global Markets Inc., Loop Capital Markets LLC
Underwriting Spread	0.100%
Currency	USD

Fund	Short-Term Government Fund
Issuer	Federal Home Loan Bank
Ticker/Sedol	3130AK5E2
Principal Amount (US$)	$997,000,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$1,196,400.00
Amount Purchased (Foreign$)	N/A
Trade Date	9/10/2020
Price (US$)	$99.700
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Nomura Securities International, Inc., Academy Securities, Inc., Citigroup Global Markets Inc., Loop Capital Markets LLC
Underwriting Spread	0.100%
Currency	USD

Fund	Government Bond Fund
Issuer	Freddie Mac
Ticker/Sedol	3137EAEW5
Principal Amount (US$)	$3,498,845,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$4,698,449.00
Amount Purchased (Foreign$)	N/A
Trade Date	9/2/2020
Price (US$)	$99.967
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Barclays Capital Inc, Nomura Securities International, Inc., Duncan Williams, Inc., Great Pacific Securities, Loop Capital Markets LLC, Mischler Financial Group, Inc., Multi-Bank Securities, Inc., Samuel A. Ramirez & Company, Inc.
Underwriting Spread	0.075%
Currency	USD

Fund	Short-Term Government Fund
Issuer	Freddie Mac
Ticker/Sedol	3137EAEW5
Principal Amount (US$)	$3,498,845,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$1,199,604.00
Amount Purchased (Foreign$)	N/A
Trade Date	9/2/2020
Price (US$)	$99.967
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Barclays Capital Inc, Nomura Securities International, Inc., Duncan Williams, Inc., Great Pacific Securities, Loop Capital Markets LLC, Mischler Financial Group, Inc., Multi-Bank Securities, Inc., Samuel A. Ramirez & Company, Inc.
Underwriting Spread	0.075%
Currency	USD

Fund	Government Bond Fund
Issuer	Freddie Mac
Ticker/Sedol	3137EAEX3
Principal Amount (US$)	$4,984,950,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$8,873,211.00
Amount Purchased (Foreign$)	N/A
Trade Date	9/23/2020
Price (US$)	$99.699
Price-Foreign	N/A
Underwriter	Citigroup Global Markets Inc.
Other Syndicate Members:	Deutsche Bank Securities Inc., Nomura Securities International, Inc., Academy Securities Inc., Bancroft Capital LLC/CA, Blaylock Van LLC, CastleOak Securities, R Seelaus & Co. Inc., Siebert Williams Shank & Co LLC
Underwriting Spread	0.100%
Currency	USD

Fund	Short-Term Government Fund
Issuer	Freddie Mac
Ticker/Sedol	3137EAEX3
Principal Amount (US$)	$4,984,950,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$697,893.00
Amount Purchased (Foreign$)	N/A
Trade Date	9/23/2020
Price (US$)	$99.699
Price-Foreign	N/A
Underwriter	Citigroup Global Markets Inc.
Other Syndicate Members:	Deutsche Bank Securities Inc., Nomura Securities International, Inc., Academy Securities Inc., Bancroft Capital LLC/CA, Blaylock Van LLC, CastleOak Securities, R Seelaus & Co. Inc., Siebert Williams Shank & Co LLC
Underwriting Spread	0.100%
Currency	USD

Fund	Government Bond Fund
Issuer	Freddie Mac
Ticker/Sedol	3137EAET2
Principal Amount (US$)	$2,494,350,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$2,494,350.00
Amount Purchased (Foreign$)	N/A
Trade Date	7/21/2020
Price (US$)	$99.774
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Citigroup Global Markets Inc., Nomura Securities International, Inc., Blaylock Van, LLC, Great Pacific Securities, Loop Capital Markets LLC, Mischler Financial Group, Inc., Multi-Bank Securities Inc, Stern Brothers
Underwriting Spread	0.063%
Currency	USD

Fund	Short-Term Government Fund
Issuer	Freddie Mac
Ticker/Sedol	3137EAET2
Principal Amount (US$)	$2,494,350,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$3,492,090.00
Amount Purchased (Foreign$)	N/A
Trade Date	7/21/2020
Price (US$)	$99.774
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Citigroup Global Markets Inc., Nomura Securities International, Inc., Blaylock Van, LLC, Great Pacific Securities, Loop Capital Markets LLC, Mischler Financial Group, Inc., Multi-Bank Securities Inc, Stern Brothers
Underwriting Spread	0.063%
Currency	USD

Fund	Government Bond Fund
Issuer	Freddie Mac
Ticker/Sedol	3137EAEU9
Principal Amount (US$)	$2,487,550,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$2,985,060.00
Amount Purchased (Foreign$)	N/A
Trade Date	7/21/2020
Price (US$)	$99.502
Price-Foreign	N/A
Underwriter	Wells Fargo Securities, LLC
Other Syndicate Members:	Citigroup Global Markets Inc., Nomura Securities International, Inc., Blaylock Van, LLC, Great Pacific Securities, Loop Capital Markets LLC, Mischler Financial Group, Inc., Multi-Bank Securities Inc, Stern Brothers
Underwriting Spread	0.100%
Currency	USD

Fund	Government Bond Fund
Issuer	Fannie Mae
Ticker/Sedol	3135G05Q2
Principal Amount (US$)	$4,466,160,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$7,939,840.00
Amount Purchased (Foreign$)	N/A
Trade Date	8/3/2020
Price (US$)	$99.248
Price-Foreign	N/A
Underwriter	Citigroup Global Markets Inc.
Other Syndicate Members:	Nomura Securities International, Inc., TD Securities (USA) LLC, CastleOak Securities, L.P., Great Pacific Securities, Loop Capital Markets, LLC, Multi-Bank Securities Inc, R Seelaus & Co Inc, Siebert Williams Shank & Co LLC
Underwriting Spread	0.175%
Currency	USD

Fund	Government Bond Fund
Issuer	Fannie Mae
Ticker/Sedol	3135G05Y5
Principal Amount (US$)	$3,994,280,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$10,984,270.00
Amount Purchased (Foreign$)	N/A
Trade Date	10/7/2020
Price (US$)	$99.857
Price-Foreign	N/A
Underwriter	Citigroup Global Markets Inc.
Other Syndicate Members:	J.P. Morgan Securities LLC, Nomura Securities International, Inc., Siebert Williams Shank & Co, LLC, Alamo Capital Financial Services, Bancroft Capital, LLC, CastleOak Securities, L.P., MFR Securities, Inc, Multi-Bank Securities, Inc.
Underwriting Spread	0.125%
Currency	USD

Fund	Inflation-Adjusted Bond Fund
Issuer	Bank of America Corporation
Ticker/Sedol	06051GJM2
Principal Amount (US$)	$1,000,000,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$1,240.000.00
Amount Purchased (Foreign$)	N/A
Trade Date	10/16/2020
Price (US$)	$100.00
Price-Foreign	N/A
Underwriter	BofA Securities, Inc.
Other Syndicate Members:	Academy Securities, Inc., ANZ Securities, Inc., BBVA Securities Inc., BMO Capital Markets Corp., Capital One Securities, Inc., CastleOak Securities, L.P., CIBC World Markets Corp., Commerz Markets LLC, Commonwealth Bank of Australia, Danske Markets Inc., DNB Markets, Inc., Drexel Hamilton, LLC, HSBC Securities (USA) Inc., Huntington Securities, Inc., ICBC Standard Bank Plc, ING Financial Markets LLC, Intesa Sanpaolo S.p.A., KeyBanc Capital Markets Inc., Lloyds Securities Inc., MFR Securities, Inc., Mizuho Securities USA LLC, MUFG Securities Americas Inc., nabSecurities, LLC, NatWest Markets Securities Inc., Nomura Securities International, Inc., Nordea Bank ABP, Nykredit Bank A/S, Penserra Securities LLC, PNC Capital Markets LLC, R. Seelaus & Co., LLC, Rabo Securities USA, Inc., Regions Securities LLC, Santander Investment Securities Inc., Scotia Capital (USA) Inc., SMBC Nikko Securities America, Inc., Standard Chartered Bank, Truist Securities, Inc., U.S. Bancorp Investments, Inc., UBS Securities LLC, UniCredit Capital Markets LLC, Westpac Capital Markets LLC
Underwriting Spread	0.875%
Currency	USD

Fund	Short-Term Government Fund
Issuer	Freddie Mac
Ticker/Sedol	3137EAEZ8
Principal Amount (US$)	$2,997,300,000.00
Principal Amount (Foreign$)	N/A
Amount Purchased (US$)	$7,992,800.00
Amount Purchased (Foreign$)	N/A
Trade Date	11/3/2020
Price (US$)	$99.910
Price-Foreign	N/A
Underwriter	Citigroup Global Markets Inc.
Other Syndicate Members:	Barclays Captial, Nomura Securities International, Inc., Academy Securities Inc., CastleOak Securities, Great Pacific Securities, Loop Capital Markets LLC, Multi-Bank Securities Inc., Siebert Williams Shank & Co LLC
Underwriting Spread	0.075%
Currency	USD