MFS Municipal Income Fund Class A (MFIAX)

Fund Assets	6.68B
Expense Ratio	0.785%
Min. Investment	$1,000
Turnover	12.00%
Dividend (ttm)	0.31
Dividend Yield	4.00%
Dividend Growth	4.44%
Payout Frequency	Monthly
Ex-Dividend Date	Sep 30, 2026

Previous Close	7.67
YTD Return	-3.52%
1-Year Return	-2.52%
5-Year Return	-1.60%
52-Week Low	7.57
52-Week High	8.29
Beta (5Y)	0.30
Holdings	2372
Inception Date	Sep 7, 1993

About MFIAX

MFS Municipal Income Fund Class A is a mutual fund designed to deliver a total return with a primary focus on generating income that is exempt from federal income tax, while also considering opportunities for capital appreciation. This fund predominantly invests in high-quality municipal bonds, allocating over 98% of its portfolio to municipal securities, with a minimal percentage in high yield and investment-grade corporate bonds as well as cash equivalents. Managed by a seasoned investment team, the fund utilizes a disciplined risk-budgeting approach and integrates both quantitative tools and fundamental credit research to identify and manage risks. Since its inception in 1986, it has aimed to provide stable, tax-advantaged income suitable for investors with long-term goals and varying risk tolerances. The fund tracks its performance against the Bloomberg Municipal Bond Index, acting as a benchmark for the broader municipal bond market. With substantial net assets, it plays a prominent role in the fixed income market, particularly for investors seeking federally tax-exempt income through a diversified municipal bond portfolio.

• Fund Family: MFS
• Category: Muni National Long
• Performance Rating: Average
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: MFIAX
• Share Class: A
• Index: Bloomberg Municipal Bond TR

Performance

MFIAX had a total return of -2.52% in the past year, including dividends. Since the fund's inception, the average annual return has been 4.02%.

Equivalent Funds

These are funds that follow the same index from the other major fund companies.

Symbol	Provider	Name	Expense Ratio
FLUVX	Fidelity	Fidelity Advisor Municipal Income M	0.73%
FKISX	Fidelity	Fidelity Advisor Municipal Income C	1.44%
FROGX	Fidelity	Fidelity Advisor Municipal Income I	0.49%
FUENX	Fidelity	Fidelity Flex Municipal Income Fund	n/a
FHIGX	Fidelity	Fidelity Municipal Income Fund	0.43%

Other Share Classes

These are alternative share classes of the same fund, from the same provider.

Symbol	Share Class	Expense Ratio
MPMNX	R6	0.47%
MMIDX	A1	0.54%
MIMIX	I	0.54%
MMIGX	B1	1.29%

Dividend History

Ex-Dividend	Amount	Pay Date
Sep 30, 2026	$0.02604	Oct 1, 2026
Aug 31, 2026	$0.02666	Sep 1, 2026
Jul 31, 2026	$0.02614	Aug 3, 2026
Jun 30, 2026	$0.02534	Jul 1, 2026
May 29, 2026	$0.02614	Jun 1, 2026
Apr 30, 2026	$0.02521	May 1, 2026

Data Sources: Tiingo, Twelve Data, and more

Historical data is provided by Tiingo. Delayed stock pricing data is provided by Twelve Data. Several fund data points are also provided by Finnhub.

Last checked:

Oct 15, 2026

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