Tax Center

Find an overview of how mutual funds are taxed, details about the tax forms you receive from MFS, and instructions for using this information to complete your tax return.

Cost-Basis Reporting
Information on the mandatory cost-basis requirements that are effective for mutual fund shares purchased after January 1, 2012.

Preparation & Filing Information
Information you'll need to file your taxes, including funds not issuing Form 1099-DIV, online tax forms and account access, percentage of government income, earned income by state, and alternative minimum tax percentage.

Tax Form Guides
Specific tax form information, including sample forms and instructions for Form 1099-DIV, Form 1099-B, Form 1099-R and the MFS Average Cost Statement.

Education & Support Resources
A variety of materials to help you prepare and file your taxes, including frequently asked questions, glossary of tax terms, tax preparation check list, phone numbers and contact information, instructions for ordering duplicate tax forms, and links to helpful Web sites.

2017 Capital Gains Estimates
October 6, 2017

IRS Form 8937
Report of Organizational Actions Affecting Basis of Securities.