# HIGH-YIELD MUNICIPAL FUND — new fund registration

AMERICAN CENTURY MUNICIPAL TRUST registered fund series on Form 485APOS, filed 2009-07-16. Featured series: HIGH-YIELD MUNICIPAL FUND.

## Registration

- Registrant / trust: AMERICAN CENTURY MUNICIPAL TRUST
- CIK: 0000746458
- Form: 485APOS
- Filed: 2009-07-16
- Accession: 0000746458-09-000027
- Reported net assets: $577.0M

## Series & classes (15)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [HIGH-YIELD MUNICIPAL FUND](https://search.stillhousedata.com/fund/S000006471) | INVESTOR CLASS | ABHYX | — |
| [HIGH-YIELD MUNICIPAL FUND](https://search.stillhousedata.com/fund/S000006471) | A CLASS | AYMAX | — |
| [HIGH-YIELD MUNICIPAL FUND](https://search.stillhousedata.com/fund/S000006471) | B CLASS | AYMBX | — |
| [HIGH-YIELD MUNICIPAL FUND](https://search.stillhousedata.com/fund/S000006471) | C CLASS | AYMCX | — |
| [TAX-FREE BOND FUND](https://search.stillhousedata.com/fund/S000006472) | INVESTOR CLASS | TWTIX | — |
| [TAX-FREE BOND FUND](https://search.stillhousedata.com/fund/S000006472) | INSTITUTIONAL CLASS | AXBIX | — |
| [TAX-FREE MONEY MARKET FUND](https://search.stillhousedata.com/fund/S000006473) | INVESTOR CLASS | BNTXX | — |
| [LONG-TERM TAX-FREE FUND](https://search.stillhousedata.com/fund/S000006474) | INVESTOR CLASS | ACLVX | — |
| [LONG-TERM TAX-FREE FUND](https://search.stillhousedata.com/fund/S000006474) | INSTITUTIONAL CLASS | ACLSX | — |
| [LONG-TERM TAX-FREE FUND](https://search.stillhousedata.com/fund/S000006474) | A CLASS | MMBAX | — |
| [LONG-TERM TAX-FREE FUND](https://search.stillhousedata.com/fund/S000006474) | B CLASS | MMDBX | — |
| [LONG-TERM TAX-FREE FUND](https://search.stillhousedata.com/fund/S000006474) | C CLASS | ACTCX | — |
| [NEW YORK TAX-FREE FUND](https://search.stillhousedata.com/fund/S000025856) | INVESTOR CLASS | ANYIX | — |
| [NEW YORK TAX-FREE FUND](https://search.stillhousedata.com/fund/S000025856) | A CLASS | ANYAX | — |
| [NEW YORK TAX-FREE FUND](https://search.stillhousedata.com/fund/S000025856) | C CLASS | ANTCX | — |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.00%
- Gross expense ratio: 0.60%
- Management fee: 0.59%
- Net expense ratio: 0.60%
- Other expenses: 0.01%

## Investment objective

The fund seeks high current income that is exempt from federal income tax.

## Advisers

- [American Century Investment Management, Inc. (Advisor)](https://search.stillhousedata.com/firm/105778)

## Other filings by this registrant (12)

- [485APOS — 2020-01-02 (2 new series)](https://search.stillhousedata.com/launch/0000746458-20-000002)
- [485APOS — 2016-07-15](https://search.stillhousedata.com/launch/0000746458-16-000080)
- [485APOS — 2009-03-27 (4 new series)](https://search.stillhousedata.com/launch/0000746458-09-000008)
- [485APOS — 2005-12-14](https://search.stillhousedata.com/launch/0000746458-05-000043)
- [485APOS — 2005-07-19](https://search.stillhousedata.com/launch/0000746458-05-000015)
- [485APOS — 2005-05-13](https://search.stillhousedata.com/launch/0000746458-05-000013)
- [485APOS — 2003-12-15](https://search.stillhousedata.com/launch/0000746458-03-000028)
- [485APOS — 2002-12-23](https://search.stillhousedata.com/launch/0000746458-02-000035)
- [485APOS — 2002-10-10](https://search.stillhousedata.com/launch/0000746458-02-000031)
- [485APOS — 2002-10-01](https://search.stillhousedata.com/launch/0000746458-02-000029)
- [485APOS — 2001-07-19](https://search.stillhousedata.com/launch/0000746458-01-500007)
- [485APOS — 2001-02-23](https://search.stillhousedata.com/launch/0000746458-01-000006)

## More

- [Registrant profile: AMERICAN CENTURY MUNICIPAL TRUST](https://search.stillhousedata.com/registrant/746458)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0000746458-09-000027.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.