District of Columbia Business Tax Extension LLC & Partnership – S Corporation – C Corporation – Fiduciary
Connect with a U.S.-based CPA or Enrolled Agent to prepare and file your District of Columbia business return. Upfront pricing, secure document upload, no surprises.
Connect with a TaxPro →District of Columbia Business Tax Extension – LLC & Partnership
FR-128 | DC Extension of Time to File • LLC & PartnershipWashington DC LLC & Partnership Tax Extension
Washington DC LLCs and partnerships with DC unincorporated business income file Form D-30 (Unincorporated Business Franchise Tax Return) with the DC Office of Tax and Revenue (OTR). The return is due April 15, 2026, and a six-month extension to October 15, 2026 is available by filing Form FR-128 (Extension of Time to File a DC Franchise or Partnership Return) with full payment of DC tax owed by April 15, 2026. Unlike the federal partnership deadline of March 15, DC’s D-30 follows the April 15 corporate schedule.
Extending a DC LLC or Partnership Return
File Form FR-128 with full payment of DC tax owed by April 15, 2026 to extend the Form D-30 deadline to October 15, 2026. Submit online at MyTax.DC.gov or mail with payment to: DC Office of Tax and Revenue, PO Box 96020, Washington, DC 20090-6020. Confirm all quarterly Form D-30ES estimated payments are current before the April 15 deadline to minimize the balance due with the extension.
DC LLC Extension Steps
- Calculate your DC unincorporated business franchise tax liability before April 15, 2026 to determine the amount due with Form FR-128.
- File Form FR-128 with full payment by April 15, 2026 via MyTax.DC.gov or by mail to extend Form D-30 to October 15, 2026.
- Confirm all Form D-30ES quarterly estimated payments are current through the extension period.
- File the completed Form D-30 with the DC Office of Tax and Revenue by October 15, 2026.
Need more time for your Washington DC LLC or partnership return? File Form FR-128 before April 15, 2026.
File Your Extension NowWorking with a Tax Professional
LLC & Partnership returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your District of Columbia return is filed accurately and on time.
- Get matched with a verified U.S.-based CPA or Enrolled Agent
- Upload your business documents via secure drag-and-drop
- Review your return with transparent, upfront pricing
- Your TaxPro files the District of Columbia return by October 15, 2026
P.O. Box 96166
Washington, DC 20090-6166
LLC & Partnership Quick Reference
| Entity Type | LLC & Partnership |
| Extension Status | Automatic with approved IRS Form 7004 |
| Original Filing Deadline | April 15, 2026 |
| Extended Filing Deadline | October 15, 2026 |
| Payment Due | April 15, 2026 (100% of tax owed) |
District of Columbia Business Tax Extension – S Corporation
FR-128 | DC Extension of Time to File • S CorporationWashington DC S Corporation Tax Extension
Washington DC does not recognize federal S corporation elections for DC tax purposes. S corporations doing business in Washington DC must file Form D-20 (Corporate Franchise Tax Return) and pay DC Corporate Franchise Tax at 8.25%—the same as C corporations. The Form D-20 return is due April 15, 2026, and a six-month extension to October 15, 2026 is available by filing Form FR-128 with full payment of DC tax owed by April 15, 2026.
Extending a DC S Corporation Return
File Form FR-128 with full payment of DC Corporate Franchise Tax owed by April 15, 2026 to extend the Form D-20 filing deadline to October 15, 2026. Submit online at MyTax.DC.gov or by mail to: DC Office of Tax and Revenue, PO Box 96020, Washington, DC 20090-6020. S corporation shareholders still report their individual DC income on Form D-40 separately—the corporate D-20 extension does not cover personal returns.
DC S Corporation Extension Steps
- Calculate DC Corporate Franchise Tax on Form D-20—DC taxes S corporations at 8.25% on net income with a minimum tax of $250 or $1,000 depending on gross receipts.
- File Form FR-128 with full payment by April 15, 2026 via MyTax.DC.gov to extend the D-20 deadline to October 15, 2026.
- Ensure all D-20ES estimated tax payments are current before the April 15 deadline.
- File the completed Form D-20 with the DC Office of Tax and Revenue by October 15, 2026.
S corporation in Washington DC? File Form FR-128 by April 15, 2026 to extend your D-20 to October 15.
File Your Extension NowWorking with a Tax Professional
S Corporation returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your District of Columbia return is filed accurately and on time.
- Get matched with a verified U.S.-based CPA or Enrolled Agent
- Upload your business documents via secure drag-and-drop
- Review your return with transparent, upfront pricing
- Your TaxPro files the District of Columbia return by October 15, 2026
P.O. Box 96166
Washington, DC 20090-6166
S Corporation Quick Reference
| Entity Type | S Corporation |
| Extension Status | Automatic with approved IRS Form 7004 |
| Original Filing Deadline | April 15, 2026 |
| Extended Filing Deadline | October 15, 2026 |
| Payment Due | April 15, 2026 (100% of tax owed) |
District of Columbia Business Tax Extension – C Corporation
FR-128 | DC Extension of Time to File • C CorporationWashington DC C Corporation Tax Extension
Washington DC C corporations file Form D-20 (Corporate Franchise Tax Return) with the DC Office of Tax and Revenue (OTR). The return is due April 15, 2026 for calendar-year corporations, and a six-month extension to October 15, 2026 is available by filing Form FR-128 (Extension of Time to File a DC Franchise or Partnership Return) with full payment of DC tax owed by April 15, 2026. DC imposes an 8.25% Corporate Franchise Tax on net income with a minimum tax of $250 (gross receipts ≤ $1 million) or $1,000 (gross receipts > $1 million).
Extending a DC C Corporation Return
File Form FR-128 with full payment of DC Corporate Franchise Tax owed by April 15, 2026 to extend the Form D-20 filing deadline to October 15, 2026. Submit online at MyTax.DC.gov or mail with payment to: DC Office of Tax and Revenue, PO Box 96020, Washington, DC 20090-6020. Corporations that are part of a combined reporting group must ensure the entire group’s DC franchise tax obligations are addressed before the April 15 deadline.
DC C Corporation Extension Steps
- Estimate DC Corporate Franchise Tax on Form D-20 before April 15, 2026, accounting for combined reporting if applicable, to determine the amount due with Form FR-128.
- File Form FR-128 with full payment by April 15, 2026 via MyTax.DC.gov or by mail to extend the D-20 deadline to October 15, 2026.
- Reconcile all D-20ES quarterly estimated payments and address any shortfall before April 15, 2026.
- File the completed Form D-20 with the DC Office of Tax and Revenue by October 15, 2026.
Need more time for your Washington DC C corporation return? File Form FR-128 before April 15, 2026.
File Your Extension NowWorking with a Tax Professional
C Corporation returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your District of Columbia return is filed accurately and on time.
- Get matched with a verified U.S.-based CPA or Enrolled Agent
- Upload your business documents via secure drag-and-drop
- Review your return with transparent, upfront pricing
- Your TaxPro files the District of Columbia return by October 15, 2026
P.O. Box 96166
Washington, DC 20090-6166
C Corporation Quick Reference
| Entity Type | C Corporation |
| Extension Status | Automatic with approved IRS Form 7004 |
| Original Filing Deadline | April 15, 2026 |
| Extended Filing Deadline | October 15, 2026 |
| Payment Due | April 15, 2026 (100% of tax owed) |
District of Columbia Business Tax Extension – Fiduciary
FR-128 | DC Extension of Time to File • FiduciaryWashington DC Fiduciary (Estate & Trust) Tax Extension
Washington DC estates and trusts with DC taxable income file Form D-41 (Fiduciary Income Tax Return) with the DC Office of Tax and Revenue (OTR). The return is due April 15, 2026 for calendar-year filers. A six-month extension to October 15, 2026 is available; any DC fiduciary income tax owed must be paid in full by April 15, 2026—the extension applies to filing only, not to payment. DC fiduciary income is taxed at the same rates as individual income (up to 10.75%).
Extending a DC Fiduciary Return
To extend the Form D-41 filing deadline to October 15, 2026, file an extension request with payment of any DC fiduciary tax owed by April 15, 2026. Extensions can be requested online through MyTax.DC.gov or by mailing a request with payment to: DC Office of Tax and Revenue, PO Box 96019, Washington, DC 20090-6019. Refer to DC OTR Fiduciary Tax Forms for the current extension form required for Form D-41 filers.
DC Fiduciary Extension Steps
- Determine whether the estate or trust meets the DC D-41 filing threshold: gross income of $1,675 or more for estates, or $100 or more for trusts.
- Calculate DC fiduciary income tax owed and file an extension request with full payment by April 15, 2026 via MyTax.DC.gov to extend Form D-41 to October 15, 2026.
- Confirm whether DC fiduciary estimated payments (Form D-41ES) are required during the extension period.
- File the completed Form D-41 with the DC Office of Tax and Revenue by October 15, 2026.
Need more time for a Washington DC estate or trust return? Request a filing extension before April 15, 2026.
File Your Extension NowWorking with a Tax Professional
Fiduciary returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your District of Columbia return is filed accurately and on time.
- Get matched with a verified U.S.-based CPA or Enrolled Agent
- Upload your business documents via secure drag-and-drop
- Review your return with transparent, upfront pricing
- Your TaxPro files the District of Columbia return by October 15, 2026
P.O. Box 96166
Washington, DC 20090-6166
Fiduciary Quick Reference
| Entity Type | Fiduciary |
| Extension Status | Automatic with approved IRS Form 7004 |
| Original Filing Deadline | April 15, 2026 |
| Extended Filing Deadline | October 15, 2026 |
| Payment Due | April 15, 2026 (100% of tax owed) |
Extended? Your District of Columbia Business Return Deadline Is Coming Up.
Work with a U.S.-based CPA or Enrolled Agent who knows District of Columbia business taxes – secure upload, upfront pricing, and on-time filing.
Connect with a TaxPro →
Social Media
