v3.26.1
Shareholder Report
 12 Months Ended
Feb. 28, 2026
USD ($)
$ / shares
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Franklin New York Tax-Free Income Fund
Entity Central Index Key 0000703112
Entity Investment Company Type N-1A
Document Period End Date Feb. 28, 2026
Shareholder Report Annual or Semi-Annual annual shareholder report
Class A  
Shareholder Report [Line Items]  
Fund Name Franklin New York Tax-Free Income Fund
Class Name Class A
Trading Symbol FNYQX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin New York Tax-Free Income Fund for the period March 1, 2025, to February 28, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) DIAL BEN/342-5236.
Additional Information Phone Number (800) DIAL BEN/342-5236
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class A
$81
0.80%
Expenses Paid, Amount $ 81
Expense Ratio, Percent 0.80%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended February 28, 2026, Class A shares of Franklin New York Tax-Free Income Fund returned 3.63%. The Fund compares its performance to the  Bloomberg New York Municipal Bond Index, which returned 4.65% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Overweight to  bonds with no external credit rating
↑
Overweight to bonds with 20 years to maturity
↑
Overweight to A rated bonds
Top detractors from performance:
↓
Underweight bonds with 10 years or less to maturity
↓
Selection in AA rated bonds
↓
Selection in A rated bonds
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended February 28, 2026
 
1 Year
5 Year
10 Year
Class A
3.63
0.71
1.57
Class A (with sales charge)
-0.25
-0.05
1.18
Bloomberg Municipal Bond Index
4.96
1.44
2.43
Bloomberg New York Municipal Bond Index
4.65
1.47
2.29
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at (800) DIAL BEN/342-5236 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 2,687,285,818
Holdings Count | $ / shares 450
Advisory Fees Paid, Amount $ 12,319,831
Investment Company Portfolio Turnover 14.51%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of February 28, 2026)
Total Net Assets
$2,687,285,818
Total Number of Portfolio Holdings
450
Total Management Fee Paid
$12,319,831
Portfolio Turnover Rate
14.51%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of February 28, 2026)
Portfolio Composition*  (% of Total Investments)
image
 [1]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class A1  
Shareholder Report [Line Items]  
Fund Name Franklin New York Tax-Free Income Fund
Class Name Class A1
Trading Symbol FNYTX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin New York Tax-Free Income Fund for the period March 1, 2025, to February 28, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) DIAL BEN/342-5236.
Additional Information Phone Number (800) DIAL BEN/342-5236
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*
Class A1
$66
0.65%
[2]
Expenses Paid, Amount $ 66
Expense Ratio, Percent 0.65%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended February 28, 2026, Class A1 shares of Franklin New York Tax-Free Income Fund returned 3.89%. The Fund compares its performance to the  Bloomberg New York Municipal Bond Index, which returned 4.65% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Overweight to  bonds with no external credit rating
↑
Overweight to bonds with 20 years to maturity
↑
Overweight to A rated bonds
Top detractors from performance:
↓
Underweight bonds with 10 years or less to maturity
↓
Selection in AA rated bonds
↓
Selection in A rated bonds
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended February 28, 2026
 
1 Year
5 Year
10 Year
Class A1
3.89
0.86
1.70
Class A1 (with sales charge)
-0.02
0.09
1.31
Bloomberg Municipal Bond Index
4.96
1.44
2.43
Bloomberg New York Municipal Bond Index
4.65
1.47
2.29
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at (800) DIAL BEN/342-5236 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 2,687,285,818
Holdings Count | $ / shares 450
Advisory Fees Paid, Amount $ 12,319,831
Investment Company Portfolio Turnover 14.51%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of February 28, 2026)
Total Net Assets
$2,687,285,818
Total Number of Portfolio Holdings
450
Total Management Fee Paid
$12,319,831
Portfolio Turnover Rate
14.51%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of February 28, 2026)
Portfolio Composition*  (% of Total Investments)
image
 [3]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class C  
Shareholder Report [Line Items]  
Fund Name Franklin New York Tax-Free Income Fund
Class Name Class C
Trading Symbol FNYIX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin New York Tax-Free Income Fund for the period March 1, 2025, to February 28, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) DIAL BEN/342-5236.
Additional Information Phone Number (800) DIAL BEN/342-5236
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*
Class C
$122
1.20%
[4]
Expenses Paid, Amount $ 122
Expense Ratio, Percent 1.20%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended February 28, 2026, Class C shares of Franklin New York Tax-Free Income Fund returned 3.33%. The Fund compares its performance to the  Bloomberg New York Municipal Bond Index, which returned 4.65% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Overweight to  bonds with no external credit rating
↑
Overweight to bonds with 20 years to maturity
↑
Overweight to A rated bonds
Top detractors from performance:
↓
Underweight bonds with 10 years or less to maturity
↓
Selection in AA rated bonds
↓
Selection in A rated bonds
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended February 28, 2026
 
1 Year
5 Year
10 Year
Class C
3.33
0.33
1.15
Class C (with sales charge)
2.33
0.33
1.15
Bloomberg Municipal Bond Index
4.96
1.44
2.43
Bloomberg New York Municipal Bond Index
4.65
1.47
2.29
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at (800) DIAL BEN/342-5236 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 2,687,285,818
Holdings Count | $ / shares 450
Advisory Fees Paid, Amount $ 12,319,831
Investment Company Portfolio Turnover 14.51%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of February 28, 2026)
Total Net Assets
$2,687,285,818
Total Number of Portfolio Holdings
450
Total Management Fee Paid
$12,319,831
Portfolio Turnover Rate
14.51%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of February 28, 2026)
Portfolio Composition*  (% of Total Investments)
image
 [5]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class R6  
Shareholder Report [Line Items]  
Fund Name Franklin New York Tax-Free Income Fund
Class Name Class R6
Trading Symbol FKTJX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin New York Tax-Free Income Fund for the period March 1, 2025, to February 28, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) DIAL BEN/342-5236.
Additional Information Phone Number (800) DIAL BEN/342-5236
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class R6
$51
0.50%
Expenses Paid, Amount $ 51
Expense Ratio, Percent 0.50%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended February 28, 2026, Class R6 shares of Franklin New York Tax-Free Income Fund returned 3.94%. The Fund compares its performance to the  Bloomberg New York Municipal Bond Index, which returned 4.65% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Overweight to  bonds with no external credit rating
↑
Overweight to bonds with 20 years to maturity
↑
Overweight to A rated bonds
Top detractors from performance:
↓
Underweight bonds with 10 years or less to maturity
↓
Selection in AA rated bonds
↓
Selection in A rated bonds
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended February 28, 2026
 
1 Year
5 Year
10 Year
Class R6
3.94
1.01
1.81
Bloomberg Municipal Bond Index
4.96
1.44
2.43
Bloomberg New York Municipal Bond Index
4.65
1.47
2.29
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at (800) DIAL BEN/342-5236 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 2,687,285,818
Holdings Count | $ / shares 450
Advisory Fees Paid, Amount $ 12,319,831
Investment Company Portfolio Turnover 14.51%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of February 28, 2026)
Total Net Assets
$2,687,285,818
Total Number of Portfolio Holdings
450
Total Management Fee Paid
$12,319,831
Portfolio Turnover Rate
14.51%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of February 28, 2026)
Portfolio Composition*  (% of Total Investments)
image
 [6]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Advisor Class  
Shareholder Report [Line Items]  
Fund Name Franklin New York Tax-Free Income Fund
Class Name Advisor Class
Trading Symbol FNYAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin New York Tax-Free Income Fund for the period March 1, 2025, to February 28, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) DIAL BEN/342-5236.
Additional Information Phone Number (800) DIAL BEN/342-5236
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*
Advisor Class
$56
0.55%
[7]
Expenses Paid, Amount $ 56
Expense Ratio, Percent 0.55%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended February 28, 2026, Advisor Class shares of Franklin New York Tax-Free Income Fund returned 3.99%. The Fund compares its performance to the  Bloomberg New York Municipal Bond Index, which returned 4.65% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Overweight to  bonds with no external credit rating
↑
Overweight to bonds with 20 years to maturity
↑
Overweight to A rated bonds
Top detractors from performance:
↓
Underweight bonds with 10 years or less to maturity
↓
Selection in AA rated bonds
↓
Selection in A rated bonds
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended February 28, 2026
 
1 Year
5 Year
10 Year
Advisor Class
3.99
0.96
1.80
Bloomberg Municipal Bond Index
4.96
1.44
2.43
Bloomberg New York Municipal Bond Index
4.65
1.47
2.29
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at (800) DIAL BEN/342-5236 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 2,687,285,818
Holdings Count | $ / shares 450
Advisory Fees Paid, Amount $ 12,319,831
Investment Company Portfolio Turnover 14.51%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of February 28, 2026)
Total Net Assets
$2,687,285,818
Total Number of Portfolio Holdings
450
Total Management Fee Paid
$12,319,831
Portfolio Turnover Rate
14.51%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of February 28, 2026)
Portfolio Composition*  (% of Total Investments)
image
 [8]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
[1]
* Does not include derivatives, except purchased options, if any.  
[2]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[3]
* Does not include derivatives, except purchased options, if any.  
[4]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[5]
* Does not include derivatives, except purchased options, if any.  
[6]
* Does not include derivatives, except purchased options, if any.  
[7]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[8]
* Does not include derivatives, except purchased options, if any.