EX-99.19a-1

MFS® Intermediate Income Trust

P.O. Box 43078

Providence, RI 02940-3078

Notice to shareholders Source of distribution

Distribution period

October-2025

Distribution amount per share

$0.01952

The following table sets forth the estimated amounts of the current distribution and the cumulative distributions paid this fiscal year to date from the following sources: net investment income, net realized short-term capital gains, net realized long-term capital gains and return of capital or other capital source. The fund’s fiscal year begins each November 1st. All amounts are expressed per common share.

 

Current

% Breakdown of

Total cumulative

% Breakdown of the total

 

distributions for the

cumulative distributions

 

distribution

current distribution

fiscal year to date

for the fiscal year to date

Net Investment Income

0.00781

40%

0.09186

 

39%

 

Net Realized ST Cap Gains

0.00000

0%

0.00000

 

0%

 

Net Realized LT Cap Gains

0.00000

0%

0.00000

 

0%

 

Return of Capital or

0.01171

60%

0.14367

 

61%

 

Other Capital Source

 

 

Total (per common share)

0.01952

100%

0.23553

 

100%

 

Average annual total return (in relation to NAV) for the five years ended 9-30-2025

 

 

1.47%

 

Annualized current distribution rate expressed as a percentage of month end NAV as of 9-30-2025

 

8.55%

 

Cumulative total return (in relation to NAV) for the fiscal year through 9-30-2025

 

 

5.62%

 

Cumulative fiscal year distributions as a percentage of NAV as of 9-30-2025

 

 

8.60%

 

You should not draw any conclusions about the fund's investment performance from the amount of this distribution or from the terms of the fund's managed distribution plan.

The fund estimates that it has distributed more than its income and capital gains; therefore, a portion of your distribution may be a return of capital. A return of capital may occur, for example, when some or all of the money that you invested in the fund is paid back to you. A return of capital distribution does not necessarily reflect the fund's investment performance and should not be confused with "yield" or "income."

The amounts and sources of distributions reported in this notice are only estimates and are not being provided for tax- reporting purposes. The actual amounts and sources of the amounts for tax-reporting purposes will depend upon the fund's investment experience during the remainder of its fiscal year and may be subject to changes based on tax regulations. The fund will send you a Form 1099-DIV for the calendar year that will tell you how to report these distributions for federal income tax purposes.

If you have any questions regarding this information, please call our fund service department at 1-800-637-2304 any business day from 9 a.m. to 5 p.m. Eastern time.

MINSN-1025

MFS® Intermediate Income Trust

P.O. Box 43078

Providence, RI 02940-3078

Notice to shareholders Source of distribution

Distribution period

September-2025

Distribution amount per share

$0.01951

The following table sets forth the estimated amounts of the current distribution and the cumulative distributions paid this fiscal year to date from the following sources: net investment income, net realized short-term capital gains, net realized long-term capital gains and return of capital or other capital source. The fund’s fiscal year begins each November 1st. All amounts are expressed per common share.

 

Current

% Breakdown of

Total cumulative

% Breakdown of the total

 

distributions for the

cumulative distributions

 

distribution

current distribution

fiscal year to date

for the fiscal year to date

Net Investment Income

0.00800

41%

0.08424

 

39%

 

Net Realized ST Cap Gains

0.00000

0%

0.00000

 

0%

 

Net Realized LT Cap Gains

0.00000

0%

0.00000

 

0%

 

Return of Capital or

0.01151

59%

0.13177

 

61%

 

Other Capital Source

 

 

Total (per common share)

0.01951

100%

0.21601

 

100%

 

Average annual total return (in relation to NAV) for the five years ended 8-31-2025

 

 

1.40%

 

Annualized current distribution rate expressed as a percentage of month end NAV as of 8-31-2025

 

8.51%

 

Cumulative total return (in relation to NAV) for the fiscal year through 8-31-2025

 

 

5.24%

 

Cumulative fiscal year distributions as a percentage of NAV as of 8-31-2025

 

 

7.85%

 

You should not draw any conclusions about the fund's investment performance from the amount of this distribution or from the terms of the fund's managed distribution plan.

The fund estimates that it has distributed more than its income and capital gains; therefore, a portion of your distribution may be a return of capital. A return of capital may occur, for example, when some or all of the money that you invested in the fund is paid back to you. A return of capital distribution does not necessarily reflect the fund's investment performance and should not be confused with "yield" or "income."

The amounts and sources of distributions reported in this notice are only estimates and are not being provided for tax- reporting purposes. The actual amounts and sources of the amounts for tax-reporting purposes will depend upon the fund's investment experience during the remainder of its fiscal year and may be subject to changes based on tax regulations. The fund will send you a Form 1099-DIV for the calendar year that will tell you how to report these distributions for federal income tax purposes.

If you have any questions regarding this information, please call our fund service department at 1-800-637-2304 any business day from 9 a.m. to 5 p.m. Eastern time.

MINSN-0925

MFS® Intermediate Income Trust

P.O. Box 43078

Providence, RI 02940-3078

Notice to shareholders Source of distribution

Distribution period

August-2025

Distribution amount per share

$0.01944

The following table sets forth the estimated amounts of the current distribution and the cumulative distributions paid this fiscal year to date from the following sources: net investment income, net realized short-term capital gains, net realized long-term capital gains and return of capital or other capital source. The fund’s fiscal year begins each November 1st. All amounts are expressed per common share.

 

Current

% Breakdown of

Total cumulative

% Breakdown of the total

 

distributions for the

cumulative distributions

 

distribution

current distribution

fiscal year to date

for the fiscal year to date

Net Investment Income

0.00778

40%

0.07664

 

39%

 

Net Realized ST Cap Gains

0.00000

0%

0.00000

 

0%

 

Net Realized LT Cap Gains

0.00000

0%

0.00000

 

0%

 

Return of Capital or

0.01166

60%

0.11986

 

61%

 

Other Capital Source

 

 

Total (per common share)

0.01944

100%

0.19650

 

100%

 

Average annual total return (in relation to NAV) for the five years ended 7-31-2025

 

 

1.18%

 

Annualized current distribution rate expressed as a percentage of month end NAV as of 7-31-2025

 

8.51%

 

Cumulative total return (in relation to NAV) for the fiscal year through 7-31-2025

 

 

4.10%

 

Cumulative fiscal year distributions as a percentage of NAV as of 7-31-2025

 

 

7.17%

 

You should not draw any conclusions about the fund's investment performance from the amount of this distribution or from the terms of the fund's managed distribution plan.

The fund estimates that it has distributed more than its income and capital gains; therefore, a portion of your distribution may be a return of capital. A return of capital may occur, for example, when some or all of the money that you invested in the fund is paid back to you. A return of capital distribution does not necessarily reflect the fund's investment performance and should not be confused with "yield" or "income."

The amounts and sources of distributions reported in this notice are only estimates and are not being provided for tax- reporting purposes. The actual amounts and sources of the amounts for tax-reporting purposes will depend upon the fund's investment experience during the remainder of its fiscal year and may be subject to changes based on tax regulations. The fund will send you a Form 1099-DIV for the calendar year that will tell you how to report these distributions for federal income tax purposes.

If you have any questions regarding this information, please call our fund service department at 1-800-637-2304 any business day from 9 a.m. to 5 p.m. Eastern time.

MINSN-0825

MFS® Intermediate Income Trust

P.O. Box 43078

Providence, RI 02940-3078

Notice to shareholders Source of distribution

Distribution period

July-2025

Distribution amount per share

$0.01948

The following table sets forth the estimated amounts of the current distribution and the cumulative distributions paid this fiscal year to date from the following sources: net investment income, net realized short-term capital gains, net realized long-term capital gains and return of capital or other capital source. The fund’s fiscal year begins each November 1st. All amounts are expressed per common share.

 

Current

% Breakdown of

Total cumulative

% Breakdown of the total

 

distributions for the

cumulative distributions

 

distribution

current distribution

fiscal year to date

for the fiscal year to date

Net Investment Income

0.00779

40%

0.06728

 

38%

 

Net Realized ST Cap Gains

0.00000

0%

0.00000

 

0%

 

Net Realized LT Cap Gains

0.00000

0%

0.00000

 

0%

 

Return of Capital or

0.01169

60%

0.10978

 

62%

 

Other Capital Source

 

 

Total (per common share)

0.01948

100%

0.17706

 

100%

 

Average annual total return (in relation to NAV) for the five years ended 6-30-2025

 

 

1.38%

 

Annualized current distribution rate expressed as a percentage of month end NAV as of 6-30-2025

 

8.47%

 

Cumulative total return (in relation to NAV) for the fiscal year through 6-30-2025

 

 

4.10%

 

Cumulative fiscal year distributions as a percentage of NAV as of 6-30-2025

 

 

6.42%

 

You should not draw any conclusions about the fund's investment performance from the amount of this distribution or from the terms of the fund's managed distribution plan.

The fund estimates that it has distributed more than its income and capital gains; therefore, a portion of your distribution may be a return of capital. A return of capital may occur, for example, when some or all of the money that you invested in the fund is paid back to you. A return of capital distribution does not necessarily reflect the fund's investment performance and should not be confused with "yield" or "income."

The amounts and sources of distributions reported in this notice are only estimates and are not being provided for tax- reporting purposes. The actual amounts and sources of the amounts for tax-reporting purposes will depend upon the fund's investment experience during the remainder of its fiscal year and may be subject to changes based on tax regulations. The fund will send you a Form 1099-DIV for the calendar year that will tell you how to report these distributions for federal income tax purposes.

If you have any questions regarding this information, please call our fund service department at 1-800-637-2304 any business day from 9 a.m. to 5 p.m. Eastern time.

MINSN-0725

MFS® Intermediate Income Trust

P.O. Box 43078

Providence, RI 02940-3078

Notice to shareholders Source of distribution

Distribution period

June-2025

Distribution amount per share

$0.01947

The following table sets forth the estimated amounts of the current distribution and the cumulative distributions paid this fiscal year to date from the following sources: net investment income, net realized short-term capital gains, net realized long-term capital gains and return of capital or other capital source. The fund’s fiscal year begins each November 1st. All amounts are expressed per common share.

 

Current

% Breakdown of

Total cumulative

% Breakdown of the total

 

distributions for the

cumulative distributions

 

distribution

current distribution

fiscal year to date

for the fiscal year to date

Net Investment Income

0.00740

38%

0.05988

 

38%

 

Net Realized ST Cap Gains

0.00000

0%

0.00000

 

0%

 

Net Realized LT Cap Gains

0.00000

0%

0.00000

 

0%

 

Return of Capital or

0.01207

62%

0.09770

 

62%

 

Other Capital Source

 

 

Total (per common share)

0.01947

100%

0.15758

 

100%

 

Average annual total return (in relation to NAV) for the five years ended 5-31-2025

 

 

1.41%

 

Annualized current distribution rate expressed as a percentage of month end NAV as of 5-31-2025

 

8.50%

 

Cumulative total return (in relation to NAV) for the fiscal year through 5-31-2025

 

 

2.99%

 

Cumulative fiscal year distributions as a percentage of NAV as of 5-31-2025

 

 

5.73%

 

You should not draw any conclusions about the fund's investment performance from the amount of this distribution or from the terms of the fund's managed distribution plan.

The fund estimates that it has distributed more than its income and capital gains; therefore, a portion of your distribution may be a return of capital. A return of capital may occur, for example, when some or all of the money that you invested in the fund is paid back to you. A return of capital distribution does not necessarily reflect the fund's investment performance and should not be confused with "yield" or "income."

The amounts and sources of distributions reported in this notice are only estimates and are not being provided for tax- reporting purposes. The actual amounts and sources of the amounts for tax-reporting purposes will depend upon the fund's investment experience during the remainder of its fiscal year and may be subject to changes based on tax regulations. The fund will send you a Form 1099-DIV for the calendar year that will tell you how to report these distributions for federal income tax purposes.

If you have any questions regarding this information, please call our fund service department at 1-800-637-2304 any business day from 9 a.m. to 5 p.m. Eastern time.

MINSN-0625

MFS® Intermediate Income Trust

P.O. Box 43078

Providence, RI 02940-3078

Notice to shareholders Source of distribution

Distribution period

May-2025

Distribution amount per share

$0.01957

The following table sets forth the estimated amounts of the current distribution and the cumulative distributions paid this fiscal year to date from the following sources: net investment income, net realized short-term capital gains, net realized long-term capital gains and return of capital or other capital source. The fund’s fiscal year begins each November 1st. All amounts are expressed per common share.

 

Current

% Breakdown of

Total cumulative

% Breakdown of the total

 

distributions for the

cumulative distributions

 

distribution

current distribution

fiscal year to date

for the fiscal year to date

Net Investment Income

0.00763

39%

0.05248

 

38%

 

Net Realized ST Cap Gains

0.00000

0%

0.00000

 

0%

 

Net Realized LT Cap Gains

0.00000

0%

0.00000

 

0%

 

Return of Capital or

0.01194

61%

0.08563

 

62%

 

Other Capital Source

 

 

Total (per common share)

0.01957

100%

0.13811

 

100%

 

Average annual total return (in relation to NAV) for the five years ended 4-30-2025

 

 

1.73%

 

Annualized current distribution rate expressed as a percentage of month end NAV as of 4-30-2025

 

8.45%

 

Cumulative total return (in relation to NAV) for the fiscal year through 4-30-2025

 

 

3.35%

 

Cumulative fiscal year distributions as a percentage of NAV as of 4-30-2025

 

 

4.97%

 

You should not draw any conclusions about the fund's investment performance from the amount of this distribution or from the terms of the fund's managed distribution plan.

The fund estimates that it has distributed more than its income and capital gains; therefore, a portion of your distribution may be a return of capital. A return of capital may occur, for example, when some or all of the money that you invested in the fund is paid back to you. A return of capital distribution does not necessarily reflect the fund's investment performance and should not be confused with "yield" or "income."

The amounts and sources of distributions reported in this notice are only estimates and are not being provided for tax- reporting purposes. The actual amounts and sources of the amounts for tax-reporting purposes will depend upon the fund's investment experience during the remainder of its fiscal year and may be subject to changes based on tax regulations. The fund will send you a Form 1099-DIV for the calendar year that will tell you how to report these distributions for federal income tax purposes.

If you have any questions regarding this information, please call our fund service department at 1-800-637-2304 any business day from 9 a.m. to 5 p.m. Eastern time.

MINSN-0525