How to Calculate Capital Gains Tax
Short-term vs long-term treatment, including the net investment income surtax.
How this number is built
Calculating it yourself
Step 1
Work out the true cost basis including commissions and reinvested dividends.
Step 2
Confirm the holding period from trade dates, not settlement dates.
Step 3
Add other income, since the long-term rate brackets stack on top of it.
Step 4
Offset with realised losses, which reduce the taxable gain directly.
Step 5
Check whether the net investment income surtax applies at your income level.
What people ask next
Can losses offset ordinary income?
A limited amount each year, with the remainder carried forward to future years.
What about a home sale?
A primary residence has its own exclusion rules that this calculator does not model.
Searches this page answers
| Related search | Goes to |
|---|---|
| capital gains | Capital Gains Tax Calculator |
| how to calculate capital gains | Capital Gains Tax Calculator |
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