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Label Element Value
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America®  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk/Return [Heading] oef_RiskReturnHeading Intermediate Bond Fund of America®
Expense Narrative [Text Block] oef_ExpenseNarrativeTextBlock

4. The “Annual fund operating expenses” table and information under the heading “Example” in the “Fees and expenses of the fund” section of the summary and statutory prospectus for IBFA is amended to read as follows. Except as indicated below, footnotes in the prospectus remain unchanged.
Expenses Restated to Reflect Current [Text] oef_ExpensesRestatedToReflectCurrent Restated to reflect current fees.
Expense Example [Heading] oef_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] oef_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds.

The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same. You may be required to pay brokerage commissions on your purchases and sales of Class F-2, F-3, 529-F-2 or 529-F-3 shares of the fund, which are not reflected in the example.

Expense Example by, Year, Caption [Text] oef_ExpenseExampleByYearCaption Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] oef_ExpenseExampleNoRedemptionByYearCaption For the share classes listed to the right, you would pay the following if you did not redeem your shares:
Expense Example Closing [Text Block] oef_ExpenseExampleClosingTextBlock

Keep this supplement with your summary and statutory prospectuses.
Supplement to Prospectus [Text Block] oef_SupplementToProspectusTextBlock

Prospectus Supplement

 

March 1, 2026  

 

For the most recent summary and statutory prospectuses of the following funds:

American Funds Mortgage Fund® (AFMF)
American High-Income Trust® (AHIT)

 

  

Intermediate Bond Fund of America® (IBFA)

U.S. Government Securities Fund® (GVT)

 
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class A  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.30%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.14%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.65%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 315
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 453
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 603
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,040
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class R-1  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.10%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.31%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 133
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 415
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 718
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,579
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class R-2  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.75%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.35%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.31%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 133
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 415
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 718
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,579
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class R-3  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.18%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.89%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 91
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 284
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 493
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,096
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class R-4  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.13%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.59%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 60
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 189
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 329
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 738
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class R-5  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.09%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.30%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 31
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 97
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 169
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 381
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class C  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.14%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.35%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 237
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 428
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 739
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 1,432
Expense Example, No Redemption, 1 Year oef_ExpenseExampleNoRedemptionYear01 137
Expense Example, No Redemption, 3 Years oef_ExpenseExampleNoRedemptionYear03 428
Expense Example, No Redemption, 5 Years oef_ExpenseExampleNoRedemptionYear05 739
Expense Example, No Redemption, 10 Years oef_ExpenseExampleNoRedemptionYear10 $ 1,432
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class F-1  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.22%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.68%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 69
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 218
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 379
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 847
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class 529-A  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.23%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.19%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.63%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 313
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 447
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 592
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,017
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class 529-C  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.19%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.40%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 243
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 443
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 766
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 1,185
Expense Example, No Redemption, 1 Year oef_ExpenseExampleNoRedemptionYear01 143
Expense Example, No Redemption, 3 Years oef_ExpenseExampleNoRedemptionYear03 443
Expense Example, No Redemption, 5 Years oef_ExpenseExampleNoRedemptionYear05 766
Expense Example, No Redemption, 10 Years oef_ExpenseExampleNoRedemptionYear10 $ 1,185
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class 529-E  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.12%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.83%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 85
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 265
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 460
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,025
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class 529-F-1  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.27%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.73%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 75
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 233
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 406
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 906
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class F-2  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.15%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.36%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 37
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 116
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 202
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 456
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class R-6  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.04%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.25%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 26
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 80
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 141
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 318
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class R-2E  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.60%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.22%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.03%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 105
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 328
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 569
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,259
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class R-5E  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.19%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.40%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 41
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 128
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 224
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 505
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class F-3  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.04%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.25%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 26
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 80
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 141
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 318
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class 529-T  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.19%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.65%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 315
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 453
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 603
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,040
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class T  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.14%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 310
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 437
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 576
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 981
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class 529-F-2  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.13%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.34%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 35
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 109
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 191
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 431
INTERMEDIATE BOND FUND OF AMERICA | Intermediate Bond Fund of America® | Class 529-F-3  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.21% [1]
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.09%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.30%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 31
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 97
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 169
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 381
[1] Restated to reflect current fees.