Comprehensive statutory analysis of District of Columbia individual income tax rates, Department of Revenue filing forms, extension guidelines, telecommuting sourcing rules, and pass-through entity tax provisions.
Official State Taxing Authority
District of Columbia Office of Tax and Revenue (OTR)
Key Statutory Tax Parameters (District of Columbia, 2026)
Tax StructureGRADUATED
Top Marginal Rate10.8%
Flat Tax RateGraduated Brackets
Filing DeadlineApril 15, 2026
Primary Resident FormForm D-40 (Individual Income Tax Return)
Nonresident FormForm D-40B (Nonresident Request for Refund - DC does not tax nonresidents)
Convenience of Employer RuleNo
Reciprocity AgreementsNone
Community Property StateCommon Law
State Estate/Inheritance TaxNone (Federal Only)
QSBS IRC § 1202 ConformityState Specific / Under Review
Marginal Rate Ladder: District of Columbia
Source: Tax Foundation — State Individual Income Tax Rates and Brackets, 2026 (retrieved 2026-08-09). Ranks District of Columbia against all 51 jurisdictions.
2026 Legislative & Statutory Highlights
The District of Columbia features a progressive tax structure with a top marginal rate of 10.75% for taxable income exceeding $1,000,000. By federal statute (the Home Rule Act), DC is prohibited from taxing the income of nonresidents who commute into the District for work.
District of Columbia operates a graduated personal income tax schedule with marginal brackets reaching up to 10.8%. Tax parameters are indexed annually or enacted through state legislative sessions. Taxpayers should ensure that adjustments for federal bonus depreciation, Section 179 expensing, and Net Operating Loss (NOL) carryforwards follow District of Columbia's specific rolling or static Internal Revenue Code conformity date.
Filing Forms, Deadlines & Extension Guidelines
Full-Year Resident ReturnForm D-40 (Individual Income Tax Return)
Nonresident / Part-Year ReturnForm D-40B (Nonresident Request for Refund - DC does not tax nonresidents)
Statutory Filing Calendar & Extension Provisions:6-month extension to October 15 available via Form FR-127. 100% of tax due must be remitted by April 15.
DC residents are taxed on worldwide income. Due to federal Home Rule Act limitations, DC does not tax nonresidents who work in DC. Maryland and Virginia residents working in DC file only in their home states pursuant to statutory reciprocal agreements.
Cross-Border Tax Credits:If you are an District of Columbia resident earning wages in another state that also levies income tax, District of Columbia generally permits a resident credit for taxes paid to other jurisdictions (subject to statutory percentage limitations) to avoid unconstitutional double taxation.
Pass-Through Entity (PTE) Tax & Small Business Rules
DC levies an Unincorporated Business Franchise Tax (UB Tax) on partnerships and sole proprietorships at a rate of 8.25%, which acts as an entity-level levy with specific small business exemption thresholds.
Estate & Inheritance Tax
The District of Columbia imposes its own estate tax with a localized exemption threshold (inflation-indexed around $4.7 million), significantly lower than the 2026 federal exemption.
Local & County Taxes
As a consolidated federal district, DC personal income tax incorporates all municipal and district-level revenues; there are no separate city or county surcharges.
Worked Tax Example: $120,000 W-2 Earner in District of Columbia
A single resident of Washington, D.C. earning $120,000 pays approximately $7,180 in DC income tax across the District progressive brackets, representing an effective tax rate of 5.98%.
Gross W-2 Wages$120,000
Est. State Tax$7,180
Effective State Rate5.98%
Calculate Your 2026 District of Columbia Tax Liability
Enter your taxable income, filing status, and municipal details below to calculate your customized state tax liability and print your executive summary.
Structure
graduated
Top rate
10.8%
State tax
$5,200
Eff. rate (state+local)
6.5%
Seven-bracket graduated system 4%–10.75%; top 10.75% applies to taxable income over $1,000,000 (DC OTR; brackets in effect since tax year 2022, confirmed for 2026 via DC OTR withholding table and multiple official sources, retrieved 2026-08-21). DC applies the same bracket thresholds to all filing statuses. Federal law prohibits DC from taxing nonresidents.
Official Executive Tax Dossier · Form 1040 Statutory Mapping
2026 Executive District of Columbia State Tax Audit Summary
STATUTORY SEAL:FT-2026-IRS-67A6B4BAIRS Rev. Proc. 2025-32 Verified
Gross Income$80,000
Taxable Income$80,000
Total Combined Tax$5,200
Effective Total Rate6.5%
Statutory Governing Authority: District of Columbia Department of Revenue Statutory Tax Code · Top Marginal Rate: 10.8% · Tax Foundation 2026 State Tax Rates & Brackets Report
Not tax, legal, or financial advice
FiscTalk provides general educational information from public sources. Your tax results depend on the full set of facts, your filing history, and the jurisdiction-specific rules that shift yearly. Before filing or making decisions, consult a licensed CPA, EA, or attorney. FiscTalk is not a fiduciary and is not affiliated with the IRS or any state agency.
Frequently Asked Questions: District of Columbia Taxes
Does District of Columbia have a state personal income tax in 2026?
Yes. District of Columbia operates a graduated personal income tax schedule with marginal brackets reaching up to 10.8%. Taxpayers must file an annual return if gross income exceeds statutory filing thresholds.
What is the 2026 individual income tax filing deadline for District of Columbia?
The regular filing deadline for District of Columbia individual income tax returns is April 15, 2026. Taxpayers seeking an extension may receive up to 6 additional months to file, but any tentative tax due must be paid by the original deadline to prevent late-payment interest and statutory penalties.
How does District of Columbia treat remote workers and telecommuters?
DC residents are taxed on worldwide income. Due to federal Home Rule Act limitations, DC does not tax nonresidents who work in DC. Maryland and Virginia residents working in DC file only in their home states pursuant to statutory reciprocal agreements.
Can small business owners in District of Columbia bypass the federal $10,000 SALT cap?
DC levies an Unincorporated Business Franchise Tax (UB Tax) on partnerships and sole proprietorships at a rate of 8.25%, which acts as an entity-level levy with specific small business exemption thresholds.
Does District of Columbia impose a separate estate or inheritance tax?
The District of Columbia imposes its own estate tax with a localized exemption threshold (inflation-indexed around $4.7 million), significantly lower than the 2026 federal exemption.
Source-verified — not professional advice
Every figure on this page is checked in-house against its primary source — IRS revenue procedures and publications, state Departments of Revenue, and the text of the underlying statute — before publication. Last reviewed 2026-10-20. The full source list is at the bottom of this page. If you spot an error, see our corrections & standards policy.
Not tax, legal, or financial advice
FiscTalk provides general educational information from public sources. Your tax results depend on the full set of facts, your filing history, and the jurisdiction-specific rules that shift yearly. Before filing or making decisions, consult a licensed CPA, EA, or attorney. FiscTalk is not a fiduciary and is not affiliated with the IRS or any state agency.