Maryland business filing due dates
The Maryland deadlines Ordexly tracks for Oct 2026 to Oct 2027. Every date links to the agency page it was checked against (last checked ). Which ones apply to a business depends on its registrations and filing frequency, so confirm with the agency.
Annual reports & franchise tax
| Due | Deadline | Source |
|---|---|---|
| Maryland Personal Property Return / Annual Report 2027 | official source |
Sales & use tax
| Due | Deadline | Source |
|---|---|---|
| Maryland sales and use tax return (monthly) Oct 2026 | official source | |
| Maryland sales and use tax return (monthly) Nov 2026 Moved from Sun, Dec 20 (weekend). | official source | |
| Maryland sales and use tax return (annual) 2026 | official source | |
| Maryland sales and use tax return (monthly) Dec 2026 | official source | |
| Maryland sales and use tax return (quarterly) Q4 2026 | official source | |
| Maryland sales and use tax return (monthly) Jan 2027 Moved from Sat, Feb 20 (weekend). | official source | |
| Maryland sales and use tax return (monthly) Feb 2027 Moved from Sat, Mar 20 (weekend). | official source | |
| Maryland sales and use tax return (monthly) Mar 2027 | official source | |
| Maryland sales and use tax return (quarterly) Q1 2027 | official source | |
| Maryland sales and use tax return (monthly) Apr 2027 | official source | |
| Maryland sales and use tax return (monthly) May 2027 Moved from Sun, Jun 20 (weekend). | official source | |
| Maryland sales and use tax return (monthly) Jun 2027 | official source | |
| Maryland sales and use tax return (quarterly) Q2 2027 | official source | |
| Maryland sales and use tax return (monthly) Jul 2027 | official source | |
| Maryland sales and use tax return (monthly) Aug 2027 | official source | |
| Maryland sales and use tax return (monthly) Sep 2027 | official source | |
| Maryland sales and use tax return (quarterly) Q3 2027 | official source |
Payroll & withholding
| Due | Deadline | Source |
|---|---|---|
| Maryland MW506 quarterly employer withholding return (quarterly) Q4 2026 | official source | |
| Maryland MW506 quarterly employer withholding return (quarterly) Q1 2027 | official source | |
| Maryland MW506 quarterly employer withholding return (quarterly) Q2 2027 | official source | |
| Maryland MW506 quarterly employer withholding return (quarterly) Q3 2027 | official source |
Unemployment / reemployment
| Due | Deadline | Source |
|---|---|---|
| Maryland UI quarterly contribution report (quarterly) Q3 2026 | official source | |
| Maryland UI quarterly contribution report (quarterly) Q4 2026 | official source | |
| Maryland UI quarterly contribution report (quarterly) Q1 2027 | official source | |
| Maryland UI quarterly contribution report (quarterly) Q2 2027 | official source |
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Nearby: Delaware due dates · District of Columbia due dates · Pennsylvania due dates · Virginia due dates · West Virginia due dates
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