District of Columbia franchise tax: due date & fees (2026)
Quick answer
Calendar-year returns: April 15. Fiscal-year returns: fifteenth day of the fourth month after the tax year closes. Next business day when a deadline falls on a weekend or holiday.
Deadline rule
Calendar-year returns: April 15. Fiscal-year returns: fifteenth day of the fourth month after the tax year closes. Next business day when a deadline falls on a weekend or holiday.
Last verified Oct 25, 2026
How do I file?
Corporate franchise tax
Entity types
Corporation; foreign corporation
Last verified Oct 25, 2026 — source and quotation
Every corporation or financial institution must file a Corporate Franchise Tax Return (form D-20), including small businesses, professional corporations, and S corporations, if they carry on or engage in any trade, business, or commercial activity in the District of Columbia (DC) or receive income from DC sources.
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When do I file or renew?
Corporate franchise tax
Deadline rule
Calendar-year returns: April 15. Fiscal-year returns: fifteenth day of the fourth month after the tax year closes. Next business day when a deadline falls on a weekend or holiday.
Last verified Oct 25, 2026 — source and quotation
For calendar year filers (with tax years ending on December 31st), the original due date is April 15th. If this date falls on a weekend or holiday, the return is due on the next business day. ... For fiscal year filers, the return is due on the 15th day of the fourth month after the tax year closes. If that date falls on a weekend or holiday, the return is due on the next business day.Official source
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Official sources and verification (3)
Last verified Oct 25, 2026. Each quotation supports the corresponding published value.
Corporate franchise tax
Corporate franchise tax
For calendar year filers (with tax years ending on December 31st), the original due date is April 15th. If this date falls on a weekend or holiday, the return is due on the next business day. ... For fiscal year filers, the return is due on the 15th day of the fourth month after the tax year closes. If that date falls on a weekend or holiday, the return is due on the next business day.Official source
Last verified Oct 25, 2026
Corporation; foreign corporation
corporation; foreign_corporation
Every corporation or financial institution must file a Corporate Franchise Tax Return (form D-20), including small businesses, professional corporations, and S corporations, if they carry on or engage in any trade, business, or commercial activity in the District of Columbia (DC) or receive income from DC sources.Official source
Last verified Oct 25, 2026
Calendar-year returns: April 15. Fiscal-year returns: fifteenth day of the fourth month after the tax year closes. Next business day when a deadline falls on a weekend or holiday.
Calendar-year returns: April 15. Fiscal-year returns: fifteenth day of the fourth month after the tax year closes. Next business day when a deadline falls on a weekend or holiday. Applies to: Corporations carrying on business or receiving DC-source income.
For calendar year filers (with tax years ending on December 31st), the original due date is April 15th. If this date falls on a weekend or holiday, the return is due on the next business day. ... For fiscal year filers, the return is due on the 15th day of the fourth month after the tax year closes. If that date falls on a weekend or holiday, the return is due on the next business day.Official source
Last verified Oct 25, 2026
Not yet verified: corporate franchise tax: fee, corporate franchise tax: late penalty, corporate franchise tax: grace — see the official agency.
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Last verified Oct 25, 2026.
Official sources (1)
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