v3.26.1
Average Annual Total Returns
 12 Months Ended 60 Months Ended 109 Months Ended 120 Months Ended 161 Months Ended 490 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
 [2]
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)              
Prospectus [Line Items]              
Average Annual Return, Percent 7.30% (0.36%)   1.90% [1] 2.01%    
Bloomberg 65% High-Grade/35% High-Yield Index (reflects no deduction for fees, expenses, or taxes)              
Prospectus [Line Items]              
Average Annual Return, Percent 3.62% 1.29%   3.32% [1] 3.06%    
Lipper High Yield Municipal Debt Funds Average              
Prospectus [Line Items]              
Average Annual Return, Percent 2.59% 1.04% 3.05%   2.84%    
T. Rowe Price Tax-Free High Yield Fund - Investor Class              
Prospectus [Line Items]              
Average Annual Return, Percent 3.98% 1.57%     2.92%    
Performance Inception Date             Mar. 01, 1985
T. Rowe Price Tax-Free High Yield Fund - Investor Class | After Taxes on Distributions              
Prospectus [Line Items]              
Average Annual Return, Percent 3.98% 1.56%     2.91%    
T. Rowe Price Tax-Free High Yield Fund - Investor Class | After Taxes on Distributions and Sales              
Prospectus [Line Items]              
Average Annual Return, Percent 4.03% 2.01%     3.08%    
T. Rowe Price Tax-Free High Yield Fund - I Class              
Prospectus [Line Items]              
Average Annual Return, Percent 4.12% 1.70%   3.22%      
Performance Inception Date       Nov. 29, 2016      
T. Rowe Price Tax-Free High Yield Fund - Advisor Class              
Prospectus [Line Items]              
Average Annual Return, Percent 3.60% 1.25%     2.65%    
Performance Inception Date           Aug. 08, 2012  
[1] Return since 11/29/16.
[2] Return since 11/30/16.