MBMAX Fees and Costs — MFS Massachusetts Municipal Bond Fund, Class B
Data updated: 2026-08-25
The net expense ratio is 1.57%: a 0.45% management fee, a 1.00% 12b-1 fee plus 0.18% other expenses, less a 0.06% fee waiver. This share class carries a deferred sales charge of up to 4.00%. Portfolio turnover was 12%.
MBMAX Fees and Expenses
Annual operating expenses and sales charges of MBMAX. Prospectus, as of March 31, 2026.
| Annual operating expenses | |
|---|---|
| Management fee | 0.45% |
| 12b-1 fee | 1.00% |
| Other expenses | 0.18% |
| Gross expense ratio | 1.63% |
| Fee waiver | −0.06% |
| Net expense ratio | 1.57% |
| Sales charges | |
|---|---|
| Max front load | 0.00% |
| Max deferred load | 4.00% |
| Redemption fee | — |
| Expense limitation in place (N-CEN) | Yes |
| Fees waived or reduced during the year | Yes |
| Waived fees subject to recoupment | No |
MBMAX Costs Over Time
On $10,000 invested in MBMAX, assuming 5% a year before costs, total costs come to $971 over 5 years, cutting the return by 1.65% a year. Illustration, not a forecast: it assumes today's net expense ratio throughout (a fee waiver may end).
| $10,000 invested | Sell after 1 year | Sell after 3 years | Sell after 5 years |
|---|---|---|---|
| Value before costs | $10,500 | $11,576 | $12,763 |
| Sales charges | $413 | $0 | $0 |
| Fund expenses (net expense ratio 1.57%) | $165 | $511 | $881 |
| Lost growth on money paid in costs | $0 | $25 | $90 |
| Total costs | $578 | $537 | $971 |
| Value after costs | $9,922 | $11,040 | $11,792 |
| Impact on return, per year | 5.78% | 1.65% | 1.65% |
MBMAX Trading Costs
Brokerage costs reported on SEC Form N-CEN for the fiscal year ending March 31, 2026.
- Explicit cost rate (commissions ÷ average net assets): —
- Total broker commissions: —
- Bought from dealers (principal trades, not a cost): $107.7M
- Portfolio turnover (prospectus): 12%
- Securities lending: none during the year
MBMAX Dealer Counterparties
Securities bought directly from dealers (principal trades).
| Broker | Amount | Share |
|---|---|---|
| Barclays Capital, Inc. | $19.2M | 19.38% |
| J.P. Morgan Securities LLC | $15.8M | 15.94% |
| Morgan Stanley & Co. LLC | $12.9M | 13.01% |
| BofA Securities, Inc. | $11.9M | 11.99% |
| Wells Fargo Securities, LLC | $9.7M | 9.77% |
| ICE Securities Execution & Clearing, LLC | $9.0M | 9.06% |
| Jefferies LLC | $6.5M | 6.58% |
| Goldman Sachs & Co. LLC | $5.4M | 5.45% |
| RBC Capital Markets, LLC | $4.9M | 4.98% |
| Mesirow Financial, Inc. | $3.8M | 3.84% |
MFS Massachusetts Municipal Bond Fund Share Classes
Net expense ratio and maximum front-end load of each share class, cheapest first.
| Ticker | Class | Net expense ratio | Front load |
|---|---|---|---|
| MPMAX | Class R6 | 0.50% | none |
| MTALX | Class I | 0.57% | none |
| MFSSX | Class A | 0.82% | 4.25% |
| MBMAX | Class B | 1.57% | none |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.