CALCMONEY // CAPITAL GAINS // MA
Massachusetts adds 5.0% state tax on top of the 23.8% federal rate. On a $1M gain, total tax: $288,000.
Calculate Your Gain5.0%
28.8%
$144,000
$288,000
| Tax Component | Rate | On $500K Gain | On $1M Gain |
|---|---|---|---|
| Federal Long-Term Rate | 20.0% | $100,000 | $200,000 |
| Net Investment Income Tax (NIIT) | 3.8% | $19,000 | $38,000 |
| Massachusetts State Tax | 5.0% | $25,000 | $50,000 |
| Total Tax Owed | 28.8% | $144,000 | $288,000 |
| Net Proceeds (after tax) | $356,000 | $712,000 |
Federal rate assumes income in the 20% long-term bracket. NIIT applies to investors with MAGI above $200K (single) or $250K (married). State rate shown is the top applicable rate.
| Gain Amount | MA Total Tax | Zero-Tax State | MA Premium |
|---|---|---|---|
| $250,000 | $72,000 | $59,500 | +$12,500 |
| $500,000 | $144,000 | $119,000 | +$25,000 |
| $1,000,000 | $288,000 | $238,000 | +$50,000 |
| $2,500,000 | $720,000 | $595,000 | +$125,000 |
| $5,000,000 | $1,440,000 | $1,190,000 | +$250,000 |
Massachusetts taxes long-term capital gains at up to 5.0%. Combined with the 20% federal rate and 3.8% NIIT, a high-income MA investor faces 28.8% on a large capital event. On a $1M gain, that is $288,000 in total tax, leaving $712,000 after tax.
Massachusetts imposes a 4% surtax on income (including capital gains) above $1,000,000, in addition to the standard 5% rate.
The difference between realizing a gain in Massachusetts versus a zero-tax state like Texas or Florida is $50,000 per $1M in gains. For a $5M exit, the gap is $250,000. Domicile planning is a key lever for HNW investors ahead of a major liquidity event.
The NIIT adds 3.8% on top of the federal rate for investors with Modified Adjusted Gross Income above $200,000 (single) or $250,000 (married filing jointly). This threshold is not indexed to inflation, so it captures most HNW capital gain transactions regardless of state.
| Alaska | None |
| Florida | None |
| Nevada | None |
| New Hampshire | None |
| South Dakota | None |
| California | 13.3% |
| New Jersey | 10.8% |
| District of Columbia | 10.8% |
| Oregon | 9.9% |
| Minnesota | 9.8% |
Maryland
5.8% state rate
DCDistrict of Columbia
10.8% state rate
NJNew Jersey
10.8% state rate
CACalifornia
13.3% state rate