How we calculate tax estimates

Default: until you set a tax profile, estimates assume the most common federal long-term capital-gains bracket (15%) for long-term gains and a representative ordinary-income rate for short-term gains. Estimates carrying this assumption are marked with an amber “Assuming 15%, set your rate” badge.

Personalized: set your filing status and household income band in Account → Tax settings and we map them to the corresponding federal brackets: your short-term gains use your marginal ordinary-income rate, and your long-term gains use your 0% / 15% / 20% capital-gains rate. Those estimates carry a green “Your rate” badge instead.

Estimates cover federal capital-gains tax on the gains a sale would realize, split between short-term and long-term holding periods.

Not modeled: state and local taxes, the 3.8% Net Investment Income Tax (NIIT), the Alternative Minimum Tax (AMT), capital-loss carryforwards, deduction phase-outs, and interactions with the rest of your return. Your actual bill can differ materially.

A sell preview is a hypothetical: it simulates selling the quantity you enter against your position's open tax lots (a lot is one batch of shares bought together on the same day), without recording anything. We compute the same sale several ways and compare:

• FIFO consumes your oldest lots first (most brokers' default).
• Highest cost consumes the lots with the highest cost per share first, usually realizing the least gain and the lowest estimated tax.
• Specific lots let you choose exactly which lots to sell.

For each method we show the realized gain, its long/short split, the estimated tax at your rates, and after-tax proceeds. A lot is long-term once held more than 365 days; lots close to that mark get a “Long in Nd” badge, since waiting can move the gain to the lower long-term rate.

Wash sales: if you bought the same security within the ±30-day window around a sale at a loss, the IRS wash-sale rule can disallow that loss. We flag at-risk previews and show when the window ends, but we don't adjust basis across accounts you haven't linked.

Moneyta, operated by Dataexpansed LLC, provides portfolio analytics and educational content for informational purposes only. Nothing here is personalized tax advice or a recommendation to buy, sell, or hold any security. Rules change and individual situations vary, so please consult a qualified tax professional before acting on any estimate.