# MFS High Income Fund — new fund registration

MFS SERIES TRUST III registered fund series on Form 485APOS, filed 2010-03-31. Featured series: MFS High Income Fund.

## Registration

- Registrant / trust: MFS SERIES TRUST III
- CIK: 0000225604
- Form: 485APOS
- Filed: 2010-03-31
- State of incorporation: MA
- Accession: 0001193125-10-072806
- Reported net assets: $2.0B

## Series & classes (23)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | A | MHITX | — |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | R4 | MHIJX | — |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | 529A | EAHIX | — |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | 529B | EMHBX | — |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | 529C | EMHCX | — |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | B | MHIBX | — |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | C | MHICX | — |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | I | MHIIX | — |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | R1 | MHIGX | — |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | R2 | MIHRX | — |
| [MFS High Income Fund](https://search.stillhousedata.com/fund/S000002427) | R3 | MHIHX | — |
| [MFS High Yield Opportunities Fund](https://search.stillhousedata.com/fund/S000002428) | A | MHOAX | — |
| [MFS High Yield Opportunities Fund](https://search.stillhousedata.com/fund/S000002428) | B | MHOBX | — |
| [MFS High Yield Opportunities Fund](https://search.stillhousedata.com/fund/S000002428) | C | MHOCX | — |
| [MFS High Yield Opportunities Fund](https://search.stillhousedata.com/fund/S000002428) | I | MHOIX | — |
| [MFS High Yield Opportunities Fund](https://search.stillhousedata.com/fund/S000002428) | R1 | MHORX | — |
| [MFS High Yield Opportunities Fund](https://search.stillhousedata.com/fund/S000002428) | R2 | MHOSX | — |
| [MFS High Yield Opportunities Fund](https://search.stillhousedata.com/fund/S000002428) | R3 | MHOTX | — |
| [MFS High Yield Opportunities Fund](https://search.stillhousedata.com/fund/S000002428) | R4 | MHOUX | — |
| [MFS High Yield Opportunities Fund](https://search.stillhousedata.com/fund/S000002428) | W | MHOWX | — |
| [MFS Municipal High Income Fund](https://search.stillhousedata.com/fund/S000002429) | A | MMHYX | — |
| [MFS Municipal High Income Fund](https://search.stillhousedata.com/fund/S000002429) | B | MMHBX | — |
| [MFS Municipal High Income Fund](https://search.stillhousedata.com/fund/S000002429) | C | MMHCX | — |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.25%
- Gross expense ratio: 0.86%
- Management fee: 0.45%
- Net expense ratio: 0.85%
- Other expenses: 0.16%

## Investment objective

The funds investment objective is to seek total return with an emphasis on high current income, but also considering capital appreciation.

## Advisers

- [MASSACHUSETTS FINANCIAL SERVICES COMPANY (Advisor)](https://search.stillhousedata.com/firm/110045)

## Other filings by this registrant (4)

- [485APOS — 2014-03-31](https://search.stillhousedata.com/launch/0001104659-14-024282)
- [485APOS — 2012-06-29 (1 new series)](https://search.stillhousedata.com/launch/0001104659-12-046855)
- [485APOS — 2008-03-28](https://search.stillhousedata.com/launch/0001193125-08-068320)
- [485APOS — 2007-03-29](https://search.stillhousedata.com/launch/0000950156-07-000224)

## More

- [Registrant profile: MFS SERIES TRUST III](https://search.stillhousedata.com/registrant/225604)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001193125-10-072806.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.