v3.26.1
Shareholder Report
 6 Months Ended
Jun. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Vanguard Tax-Managed Funds
Entity Central Index Key 0000923202
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2026
C000012133 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Tax-Managed Balanced Fund
Class Name Admiral™ Shares
Trading Symbol VTMFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Vanguard Tax-Managed Balanced Fund (the "Fund") for the period of January 1, 2026, to June 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature. You can also request this information by contacting us at 800-662-7447.
Material Fund Change Notice [Text Block] The report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Admiral Shares $3 0.06%1
​1
Annualized.
Expenses Paid, Amount $ 3
Expense Ratio, Percent 0.06% [1]
Net Assets $ 12,251,000,000
Holdings Count | Holding 4,776
Investment Company Portfolio Turnover 4.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of June 30, 2026)
Fund Net Assets
(in millions)		 $12,251
Number of Portfolio Holdings 4,776
Portfolio Turnover Rate 4%
Holdings [Text Block]
Portfolio Composition % of Net Assets
(as of June 30, 2026)
Consumer Discretionary 6.1%
Consumer Staples 1.7%
Energy 1.5%
Financials 4.5%
Health Care 4.0%
Industrials 5.8%
Technology 19.8%
Utilities 1.1%
Tax-Exempt Municipal Bonds 52.8%
Other Assets and Liabilities—Net 2.7%
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Material Fund Change [Text Block]
How has the Fund changed?
Effective January 12, 2026, The Vanguard Group, Inc. exercises portfolio management responsibilities for the fund through its wholly-owned subsidiary, Vanguard Capital Management, LLC.
This is a summary of certain changes to the Fund since December 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Summary of Change Legend [Text Block]
This is a summary of certain changes to the Fund since December 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Updated Prospectus Phone Number 800-662-7447
Updated Prospectus Web Address https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
C000012135 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Tax-Managed Capital Appreciation Fund
Class Name Admiral™ Shares
Trading Symbol VTCLX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Vanguard Tax-Managed Capital Appreciation Fund (the "Fund") for the period of January 1, 2026, to June 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature. You can also request this information by contacting us at 800-662-7447.
Material Fund Change Notice [Text Block] The report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Admiral Shares $3 0.06%1
​1
Annualized.
Expenses Paid, Amount $ 3
Expense Ratio, Percent 0.06% [2]
Net Assets $ 29,877,000,000
Holdings Count | Holding 902
Investment Company Portfolio Turnover 4.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of June 30, 2026)
Fund Net Assets
(in millions)		 $29,877
Number of Portfolio Holdings 902
Portfolio Turnover Rate 4%
Holdings [Text Block]
Portfolio Composition % of Net Assets
(as of June 30, 2026)
Basic Materials 1.5%
Consumer Discretionary 12.7%
Consumer Staples 3.6%
Energy 3.2%
Financials 9.6%
Health Care 8.5%
Industrials 12.1%
Real Estate 2.0%
Technology 42.0%
Telecommunications 2.1%
Utilities 2.3%
Other Assets and Liabilities—Net 0.4%
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Material Fund Change [Text Block]
How has the Fund changed?
Effective January 12, 2026, The Vanguard Group, Inc. exercises portfolio management responsibilities for the fund through its wholly-owned subsidiary, Vanguard Portfolio Management, LLC.
This is a summary of certain changes to the Fund since December 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Summary of Change Legend [Text Block]
This is a summary of certain changes to the Fund since December 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Updated Prospectus Phone Number 800-662-7447
Updated Prospectus Web Address https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
C000012136 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Tax-Managed Capital Appreciation Fund
Class Name Institutional Shares
Trading Symbol VTCIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Vanguard Tax-Managed Capital Appreciation Fund (the "Fund") for the period of January 1, 2026, to June 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature. You can also request this information by contacting us at 800-662-7447.
Material Fund Change Notice [Text Block] The report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Institutional Shares $2 0.04%1
​1
Annualized.
Expenses Paid, Amount $ 2
Expense Ratio, Percent 0.04% [3]
Net Assets $ 29,877,000,000
Holdings Count | Holding 902
Investment Company Portfolio Turnover 4.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of June 30, 2026)
Fund Net Assets
(in millions)		 $29,877
Number of Portfolio Holdings 902
Portfolio Turnover Rate 4%
Holdings [Text Block]
Portfolio Composition % of Net Assets
(as of June 30, 2026)
Basic Materials 1.5%
Consumer Discretionary 12.7%
Consumer Staples 3.6%
Energy 3.2%
Financials 9.6%
Health Care 8.5%
Industrials 12.1%
Real Estate 2.0%
Technology 42.0%
Telecommunications 2.1%
Utilities 2.3%
Other Assets and Liabilities—Net 0.4%
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Material Fund Change [Text Block]
How has the Fund changed?
Effective January 12, 2026, The Vanguard Group, Inc. exercises portfolio management responsibilities for the fund through its wholly-owned subsidiary, Vanguard Portfolio Management, LLC.
This is a summary of certain changes to the Fund since December 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Summary of Change Legend [Text Block]
This is a summary of certain changes to the Fund since December 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Updated Prospectus Phone Number 800-662-7447
Updated Prospectus Web Address https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
C000012143 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Tax-Managed Small-Cap Fund
Class Name Institutional Shares
Trading Symbol VTSIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Vanguard Tax-Managed Small-Cap Fund (the "Fund") for the period of January 1, 2026, to June 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature. You can also request this information by contacting us at 800-662-7447.
Material Fund Change Notice [Text Block] The report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Institutional Shares $2 0.03%1
​1
Annualized.
Expenses Paid, Amount $ 2
Expense Ratio, Percent 0.03% [4]
Net Assets $ 11,475,000,000
Holdings Count | Holding 604
Investment Company Portfolio Turnover 12.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of June 30, 2026)
Fund Net Assets
(in millions)		 $11,475
Number of Portfolio Holdings 604
Portfolio Turnover Rate 12%
Holdings [Text Block]
Portfolio Composition % of Net Assets
(as of June 30, 2026)
Communication Services 3.6%
Consumer Discretionary 13.7%
Consumer Staples 3.2%
Energy 4.9%
Financials 18.2%
Health Care 12.0%
Industrials 17.1%
Information Technology 14.0%
Materials 4.4%
Real Estate 6.5%
Utilities 1.9%
Other Assets and Liabilities—Net 0.5%
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Material Fund Change [Text Block]
How has the Fund changed?
Effective January 12, 2026, The Vanguard Group, Inc. exercises portfolio management responsibilities for the fund through its wholly-owned subsidiary, Vanguard Portfolio Management, LLC.
This is a summary of certain changes to the Fund since December 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Summary of Change Legend [Text Block]
This is a summary of certain changes to the Fund since December 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Updated Prospectus Phone Number 800-662-7447
Updated Prospectus Web Address https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
C000012142 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Tax-Managed Small-Cap Fund
Class Name Admiral™ Shares
Trading Symbol VTMSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Vanguard Tax-Managed Small-Cap Fund (the "Fund") for the period of January 1, 2026, to June 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature. You can also request this information by contacting us at 800-662-7447.
Material Fund Change Notice [Text Block] The report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Admiral Shares $3 0.06%1
​1
Annualized.
Expenses Paid, Amount $ 3
Expense Ratio, Percent 0.06% [5]
Net Assets $ 11,475,000,000
Holdings Count | Holding 604
Investment Company Portfolio Turnover 12.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of June 30, 2026)
Fund Net Assets
(in millions)		 $11,475
Number of Portfolio Holdings 604
Portfolio Turnover Rate 12%
Holdings [Text Block]
Portfolio Composition % of Net Assets
(as of June 30, 2026)
Communication Services 3.6%
Consumer Discretionary 13.7%
Consumer Staples 3.2%
Energy 4.9%
Financials 18.2%
Health Care 12.0%
Industrials 17.1%
Information Technology 14.0%
Materials 4.4%
Real Estate 6.5%
Utilities 1.9%
Other Assets and Liabilities—Net 0.5%
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Material Fund Change [Text Block]
How has the Fund changed?
Effective January 12, 2026, The Vanguard Group, Inc. exercises portfolio management responsibilities for the fund through its wholly-owned subsidiary, Vanguard Portfolio Management, LLC.
This is a summary of certain changes to the Fund since December 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Summary of Change Legend [Text Block]
This is a summary of certain changes to the Fund since December 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Updated Prospectus Phone Number 800-662-7447
Updated Prospectus Web Address https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
[1]
Annualized.
[2]
Annualized.
[3]
Annualized.
[4] Annualized.
[5] Annualized.