Illinois & Indiana Capital Gains Tax Calculator
Combines federal long-term rates with Illinois’s 4.95% state treatment.
Illinois, Indiana share this page.
Their rules produce the same answer to within a rounding difference, so publishing
separate near-identical pages would add URLs without adding information. Every figure
below applies to both states.
Illinois capital gains estimator
Combines federal long-term rates with Illinois’s 4.95% state treatment.
Total tax on the gain —
Federal —
Illinois state —
Net investment income tax —
You keep —
Illinois at a glance
| Figure | Illinois | Source |
|---|---|---|
| State capital gains rate | 4.95% | [1] |
| State top marginal rate | 4.95% | [1] |
| Federal long-term rates | 0% / 15% / 20% | [2] |
| Net investment income tax | 3.8% above $200,000 | [2] |
Illinois highlighted. Same data as the table below, shown as a distribution so the comparison is visible at a glance.
Highlighted: Illinois, ranked 24 of 50. Median 4.55%.
Illinois tax by gain size and other income
Total tax (federal + Illinois + NIIT) on a long-term gain.
| Capital gain | $40,000 income | $60,000 income | $80,000 income | $100,000 income | $150,000 income | $200,000 income | $300,000 income | $500,000 income |
|---|---|---|---|---|---|---|---|---|
| $10,000 | $743 | $1,995 | $1,995 | $1,995 | $1,995 | $2,375 | $2,375 | $2,375 |
| $20,000 | $2,738 | $3,990 | $3,990 | $3,990 | $3,990 | $4,750 | $4,750 | $4,750 |
| $30,000 | $4,733 | $5,985 | $5,985 | $5,985 | $5,985 | $7,125 | $7,125 | $7,125 |
| $40,000 | $6,728 | $7,980 | $7,980 | $7,980 | $7,980 | $9,500 | $9,500 | $9,830 |
| $50,000 | $8,723 | $9,975 | $9,975 | $9,975 | $9,975 | $11,875 | $11,875 | $12,705 |
| $65,000 | $11,715 | $12,968 | $12,968 | $12,968 | $13,538 | $15,438 | $15,438 | $17,018 |
| $80,000 | $14,708 | $15,960 | $15,960 | $15,960 | $17,100 | $19,000 | $19,000 | $21,330 |
| $100,000 | $18,698 | $19,950 | $19,950 | $19,950 | $21,850 | $23,750 | $23,750 | $27,080 |
| $125,000 | $23,685 | $24,938 | $25,128 | $25,888 | $27,788 | $29,688 | $29,688 | $34,268 |
| $150,000 | $28,673 | $30,305 | $31,065 | $31,825 | $33,725 | $35,625 | $35,625 | $41,455 |
| $200,000 | $40,168 | $42,180 | $42,940 | $43,700 | $45,600 | $47,500 | $47,500 | $55,830 |
| $250,000 | $52,043 | $54,055 | $54,815 | $55,575 | $57,475 | $59,375 | $60,205 | $70,205 |
| $350,000 | $75,793 | $77,805 | $78,565 | $79,325 | $81,225 | $83,955 | $88,955 | $98,955 |
| $500,000 | $111,748 | $114,760 | $116,520 | $118,280 | $122,680 | $127,080 | $132,080 | $142,080 |
| $650,000 | $154,873 | $157,885 | $159,645 | $161,405 | $165,805 | $170,205 | $175,205 | $185,205 |
| $800,000 | $197,998 | $201,010 | $202,770 | $204,530 | $208,930 | $213,330 | $218,330 | $228,330 |
| $1,000,000 | $255,498 | $258,510 | $260,270 | $262,030 | $266,430 | $270,830 | $275,830 | $285,830 |
| $1,500,000 | $399,248 | $402,260 | $404,020 | $405,780 | $410,180 | $414,580 | $419,580 | $429,580 |
Worked figures for Illinois
Illinois values:
| Gain | Federal | State | Niit | Total | Effective |
|---|---|---|---|---|---|
| $25,000 | $3,750 | $1,238 | $0 | $4,988 | 19.95% |
| $50,000 | $7,500 | $2,475 | $0 | $9,975 | 19.95% |
| $75,000 | $11,250 | $3,713 | $0 | $14,963 | 19.95% |
| $100,000 | $15,000 | $4,950 | $0 | $19,950 | 19.95% |
| $150,000 | $22,500 | $7,425 | $1,900 | $31,825 | 21.22% |
| $200,000 | $30,000 | $9,900 | $3,800 | $43,700 | 21.85% |
| $300,000 | $45,000 | $14,850 | $7,600 | $67,450 | 22.48% |
| $500,000 | $78,330 | $24,750 | $15,200 | $118,280 | 23.66% |
| $750,000 | $128,330 | $37,125 | $24,700 | $190,155 | 25.35% |
| $1,000,000 | $178,330 | $49,500 | $34,200 | $262,030 | 26.20% |
How Illinois compares nationally
On state capital gains rate, Illinois ranks #24 of 50 at 4.95% — 9% above the median of 4.55%. The national range runs from 0.00% (Wyoming) to 13.30% (California).
| Rank | State | State capital gains rate |
|---|---|---|
| #22 | Alabama | 5.00% |
| #23 | Georgia | 4.99% |
| #24 | Illinois | 4.95% |
| #25 | West Virginia | 4.58% |
| #26 | Nebraska | 4.55% |
Flat state rate on gainss, ranked
Same rule structure as Illinois:
| State | State capital gains rate | vs Illinois |
|---|---|---|
| Washington | 7.00% | +41.4% |
| Illinois | 4.95% | — |
| North Carolina | 3.99% | -19.4% |
| Ohio | 3.50% | -29.3% |
| Pennsylvania | 3.07% | -38.0% |
Illinois questions, answered with Illinois numbers
Does Illinois tax capital gains?▾
Yes. Illinois applies 4.95% to capital gains. On a $100,000 long-term gain that is $4,950 in state tax, on top of $15,000 federal.
What would I owe on a $500,000 gain in Illinois?▾
About $118,280 total — $78,330 federal, $24,750 to Illinois, and $15,200 net investment income tax. You would keep roughly $381,720, an effective rate of 23.66%.
How does Illinois compare with a no-tax state?▾
Realising a $500,000 gain in Illinois costs $24,750 more than realising it in a state with no capital gains tax, such as Florida or Texas.
Other flat state rate on gainss
Last reviewed 2026-08-27. Illinois figures only — verify with the relevant Illinois agency before acting. How this is calculated.