Twenty calculators covering the tax side of a portfolio — what a sale really costs, where each asset belongs, and how much of the plan survives the transfer to the next generation. Estimates only; confirm anything material with your accountant.
Realized gains and loss harvesting
Everything that happens when a position is actually sold: the tax owed, the losses that can cancel it out, and the rules that quietly undo the benefit.
Tool 51
Tax-loss harvesting savings estimator
Sell losing positions to cancel out gains you already realised, then carry the rest forward.
Tax saved this year
$0
Losses used on short-term gains
$0
Losses used on long-term gains
$0
Deducted against income
$0
Carried to future years
$0
Losses offset short-term gains first because those are taxed hardest. Only $3,000 a year can be written off against ordinary income; the rest never expires.
Tool 53
Wash-sale 30-day warning engine
Repurchase the same security too soon and the loss deduction is disallowed and rolled into your new cost basis.
Status
Clear of the 30-day window
Deduction at risk
$0
Days to wait before rebuying
0 days
The window runs 30 days either side of the sale. A substantially identical fund counts, so swap to a similar-but-different index instead of waiting idle.
Tool 54
Capital gains tax drag estimator
The exact short-term versus long-term burden on the profits you realise from trading.
Realised gain
$0
Treatment
Short-term
Federal tax
$0
State tax
$0
Kept after tax
$0
Saved by holding to 12 months
$0
Anything sold inside twelve months is taxed at your income rate. Crossing the one-year line is usually the single cheapest tax decision available.
Tool 62
Specific-lot identification sales planner
Sell the highest-cost shares first so the least gain is realised.
Sell this order
—
Gain realised
$0
Tax on that gain
$0
Saved versus selling cheapest lots
$0
Your broker defaults to first-in-first-out, which usually sells your cheapest and most-appreciated shares. Naming the lot at the time of sale is what locks this in.
Tool 68
Loss carryforward tracker
Unused losses above the $3,000 annual limit roll forward until they are used up.
Loss pool
$0
Used against gains
$0
Used against income
$0
Still carried forward
$0
Tax saved this year
$0
Years to burn the rest at $3k
0
Carryforwards never expire, but they die with you — a very large pool is a reason to realise gains sooner rather than later.
Tool 70
Deferred capital gains annuity calculator
Spread one large sale over several years so the gain — and the tax — is recognised in slices.
Gain recognised
$0
Tax if sold all at once
$0
Tax per year when spread
$0
Extra growth on deferred tax
$0
Spreading a sale keeps each year's gain in a lower bracket and lets the unpaid tax keep earning for you in the meantime.