EX-99.CERT
MFS MULTIMARKET INCOME TRUST
CERTIFICATION
I, Tracy Atkinson, certify that:
1.	I have reviewed this report on Form N-Q of MFS Multimarket Income Trust;
2.	Based on my knowledge, this report does not contain any untrue statement of a
	material fact or omit to state a material fact necessary to make the statements made, in
	light of the circumstances under which such statements were made, not misleading
	with respect to the period covered by this report;
3.	Based on my knowledge, the schedules of investments included in this report fairly
	present in all material respects the investments of the registrant as of the end of the
	fiscal quarter for which the report is filed;
4.	The registrant’s other certifying officer and I are responsible for establishing and
	maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the
	Investment Company Act of 1940) and internal control over financial reporting (as
	defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the
	registrant and have:
	a.	designed such disclosure controls and procedures, or caused such disclosure
		controls and procedures to be designed under our supervision, to ensure that
		material information relating to the registrant, including its consolidated
		subsidiaries, is made known to us by others within those entities, particularly
		during the period in which this report is being prepared;
	b.	designed such internal control over financial reporting, or caused such internal
		control over financial reporting to be designed under our supervision, to
		provide reasonable assurance regarding the reliability of financial reporting and
		the preparation of financial statements for external purposes in accordance with
		generally accepted accounting principles;
	c.	evaluated the effectiveness of the registrant’s disclosure controls and
		procedures and presented in this report our conclusions about the effectiveness
		of the disclosure controls and procedures, as of a date within 90 days prior to
		the filing date of this report, based on such evaluation; and
	d.	disclosed in this report any change in the registrant’s internal control over
		financial reporting that occurred during the registrant’s most recent fiscal
		quarter that has materially affected, or is reasonably likely to materially affect,
		the registrant’s internal control over financial reporting; and
5.	The registrant’s other certifying officer and I have disclosed to the registrant’s auditors
	and the audit committee of the registrant’s board of directors (or persons performing
	the equivalent functions):
	a.	all significant deficiencies and material weaknesses in the design or
		operation of internal control over financial reporting which are reasonably
		likely to adversely affect the registrant’s ability to record, process,
		summarize, and report financial information; and

	b.	any fraud, whether or not material, that involves management or other
		employees who have a significant role in the registrant’s internal control over
		financial reporting.
Date:	March 24, 2006		TRACY ATKINSON
			Tracy Atkinson
			Treasurer (Principal Financial Officer and
			Accounting Officer)

EX-99.CERT
MFS MULTIMARKET INCOME TRUST
CERTIFICATION
I, Maria F. Dwyer, certify that:
1.	I have reviewed this report on Form N-Q of MFS Multimarket Income Trust;
2.	Based on my knowledge, this report does not contain any untrue statement of a
	material fact or omit to state a material fact necessary to make the statements made, in
	light of the circumstances under which such statements were made, not misleading
	with respect to the period covered by this report;
3.	Based on my knowledge, the schedules of investments included in this report fairly
	present in all material respects the investments of the registrant as of the end of the
	fiscal quarter for which the report is filed;
4.	The registrant’s other certifying officer and I are responsible for establishing and
	maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the
	Investment Company Act of 1940) and internal control over financial reporting (as
	defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the
	registrant and have:
	a.	designed such disclosure controls and procedures, or caused such disclosure
		controls and procedures to be designed under our supervision, to ensure that
		material information relating to the registrant, including its consolidated
		subsidiaries, is made known to us by others within those entities, particularly
		during the period in which this report is being prepared;
	b.	designed such internal control over financial reporting, or caused such internal
		control over financial reporting to be designed under our supervision, to provide
		reasonable assurance regarding the reliability of financial reporting and the
		preparation of financial statements for external purposes in accordance with
		generally accepted accounting principles;
	c.	evaluated the effectiveness of the registrant’s disclosure controls and procedures
		and presented in this report our conclusions about the effectiveness of the
		disclosure controls and procedures, as of a date within 90 days prior to the filing
		date of this report, based on such evaluation; and
	d.	disclosed in this report any change in the registrant’s internal control over
		financial reporting that occurred during the registrant’s most recent fiscal
		quarter that has materially affected, or is reasonably likely to materially affect,
		the registrant’s internal control over financial reporting; and
5.	The registrant’s other certifying officer and I have disclosed to the registrant’s auditors
	and the audit committee of the registrant’s board of directors (or persons performing
	the equivalent functions):
	a.	all significant deficiencies and material weaknesses in the design or
		operation of internal control over financial reporting which are reasonably
		likely to adversely affect the registrant’s ability to record, process,
		summarize, and report financial information; and

			EX-99.CERT
	b.	any fraud, whether or not material, that involves management or other
		employees who have a significant role in the registrant’s internal control over
		financial reporting.
Date:	March 24, 2006		MARIA F. DWYER
			Maria F. Dwyer
			President (Principal Executive Officer)