District of Columbia · State Income Tax Deduction
State Income Tax Deduction in District of Columbia (2026)
Deduct state and local income taxes, or sales taxes, as part of the federal SALT itemized deduction. District of Columbia has a progressive income tax with a top rate of 10.75%, so a District of Columbia filer's combined marginal rate on the next dollar at $101,722 of income is about 30.5% (22% federal + 8.5% DC).
2026 savings example for District of Columbia
Planning estimate for a single filer earning $101,722 (District of Columbia median household income in LevyIO's state dataset) who removes $5,000 from taxable income. Federal tax uses the 2026 IRS brackets after the $16,100 standard deduction; DC tax uses the state brackets in LevyIO's dataset and assumes the state follows the federal treatment.
Estimated total savings
$1,525
Federal savings
$1,100
$13,549 → $12,449 · 22% bracket
DC state savings
$425
$5,805 → $5,380 · 8.5% marginal
Combined marginal rate
30.5%
≈ $305 saved per $1,000 deducted
Statutory maximum for this item in LevyIO's dataset: $40,400.
Federal × District of Columbia marginal rates (2026, single)
Gross-income ranges include the federal standard deduction. The DC column is the state marginal rate at the midpoint of each range. The last column is the tax saved per $1,000 deducted at that combined rate.
| Federal bracket | Gross income (single) | DC marginal | Combined | Per $1,000 |
|---|---|---|---|---|
| 10% | $16,100 - $28,500 | 4% | 14% | $140 |
| 12% | $28,500 - $66,500 | 6% | 18% | $180 |
| 22% | $66,500 - $121,800 | 8.5% | 30.5% | $305 |
| 24% | $121,800 - $217,875 | 8.5% | 32.5% | $325 |
| 32% | $217,875 - $272,325 | 8.5% | 40.5% | $405 |
| 35% | $272,325 - $656,700 | 9.25% | 44.25% | $443 |
| 37% | Over $656,700 | 9.75% | 46.75% | $468 |
Eligibility & forms
Taxpayers who itemize and deduct state/local income taxes or general sales taxes on Schedule A
- Part of the combined SALT cap
- Must itemize
- Choose income taxes OR sales taxes, not both
- Property taxes share the same overall SALT limit
Federal forms: Schedule A
District of Columbia filing notes
DC uses the federal standard deduction. The 10.75% top rate affects income over $1M. DC offers an EITC at 70% of federal. Check reciprocity with MD and VA.
Common mistakes: Double-counting property tax in SALT; Not considering sales tax alternative; Assuming the federal SALT deduction also reduces state taxable income.
Frequently asked questions
How much can the State Income Tax Deduction save a District of Columbia taxpayer in 2026?
In LevyIO's example, a single filer with $101,722 of income (the District of Columbia median household income in our state dataset) who removes $5,000 from taxable income saves about $1,100 in 2026 federal tax (22% marginal bracket) plus about $425 in District of Columbia tax (8.5% state marginal rate), roughly $1,525 combined. It is a planning estimate computed from the 2026 IRS brackets and LevyIO's DC bracket data, not a survey figure.
What is the District of Columbia income tax rate for 2026?
District of Columbia has a progressive income tax with a top rate of 10.75%. The DC standard deduction in LevyIO's dataset is $14,600 single / $29,200 married. High top rate (10.75%). Uses federal standard deduction. Estate tax ($4.71M exemption). Highest median income.
Who qualifies for the State Income Tax Deduction in District of Columbia?
Taxpayers who itemize and deduct state/local income taxes or general sales taxes on Schedule A. The federal rules are the same in every state; the requirements are: Part of the combined SALT cap; Must itemize; Choose income taxes OR sales taxes, not both; Property taxes share the same overall SALT limit. District of Columbia filers should confirm on the DC return whether the state follows the federal treatment.
Which forms do I file to claim the State Income Tax Deduction?
Federal: Schedule A. District of Columbia: check the DC Office of Tax and Revenue instructions for the matching state schedule. Common mistakes: Double-counting property tax in SALT; Not considering sales tax alternative; Assuming the federal SALT deduction also reduces state taxable income.
State Income Tax Deduction in other states
More District of Columbia deductions and credits
- District of Columbia income tax guide 2026
- Backdoor Roth IRA Conversion in District of Columbia
- Child & Dependent Care Credit in District of Columbia
- Qualified Charitable Distribution (QCD) in District of Columbia
- Rental Real Estate Safe Harbor (QBI) in District of Columbia
- Student Loan Interest Deduction in District of Columbia
Sources
Reviewed 2026-09-17. Estimates are educational planning figures computed from the IRS 2026 inflation adjustments and LevyIO's state bracket dataset; they are not tax advice.