v3.25.2
Shareholder Fees - INCOME FUND OF AMERICA
Sep. 30, 2025
Class A  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 1.00% [1]
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class 529-A  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 3.50%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 1.00% [1]
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class C  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 1.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class 529-C  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 1.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class 529-E  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class 529-T  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 2.50%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class T  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 2.50%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class F-1  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class 529-F-1  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class F-2  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class F-3  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class 529-F-2  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class 529-F-3  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class R-1  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class R-2  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class R-3  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class R-4  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class R-5  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class R-6  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class R-2E  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Class R-5E  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
[1] A contingent deferred sales charge of 1.00% applies on certain redemptions made within 18 months following purchases of $1 million or more made without an initial sales charge. Contingent deferred sales charge is calculated based on the lesser of the offering price and market value of shares being sold.