Mitesco, Inc. (MITI) Post-Termination ISO Calculator
Calculator · free · no signup · MITILeft Mitesco, Inc. with vested ISOs? Most plans give you 90 days to exercise or forfeit. See your deadline, the AMT cost of exercising, and the share count that maximizes after-tax value.
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Your grant
Tax inputs
Grant timeline
Recommended exercise quantity
Exercise all 10,000
With 10%/yr expected growth over the 3-yr hold, every share's expected after-tax gain exceeds its marginal AMT cost. Net value: $171,946 at horizon.
Net after-tax value vs. shares exercised
Each point is the expected after-tax NPV at your hold horizon if you exercise that many shares now and let the rest expire.
Year-by-year tax breakdown
You pay the higher of Regular tax and Tentative AMT per jurisdiction, then subtract Credit recovered. The result is Net tax. Hover any number for the bracket-by-bracket breakdown.
| 1 | 10,000 | |||
| 2 | 0 | |||
| 3 | 0 |
Federal AMT credit
Earned
$134,654
Recovered
$29,764
Remaining
$104,890
The AMT credit only recovers in years where regular tax exceeds AMT — typically a year with no ISO exercise. It carries forward indefinitely (Form 8801) and applies in any future tax year where regular tax exceeds AMT.
Estimates only. Excludes disqualifying dispositions, NSOs, multi-state moves, and AMT preferences other than ISO bargain elements. Long-term capital gains tax assumes a qualifying disposition (ISO held ≥1 yr from exercise and ≥2 yr from grant); state LTCG follows ordinary brackets except where the state grants preferential treatment (HI, ND, SC, WI, AR, NM) or has a dedicated LTCG-only tax (WA). Assumes you are within the $100K ISO limit (any portion of an annual ISO grant whose FMV at grant exceeds $100K is treated as NSO from the start, §422(d)). State AMT figures are 2025 (next-year values published in late 2026). Not financial advice.
QSBS note. If your shares qualify (typically pre-IPO C-corp grants held 5+ years), a federal rule lets you exclude up to $10M of gain on a future sale from federal tax. That single rule shifts exercise-timing math more than AMT does. (This is §1202 “qualified small-business stock”.) Modeled in beta, not here.
You solved the exercise window. The beta plans what comes after it: the new shares, your remaining equity, hedges, and taxes in one multi-year plan.
Request beta access →Related calculators: Multi-Year ISO Exercise Schedule Calculator · Stock Concentration Calculator
About Mitesco, Inc.
Mitesco, Inc. (MITI) is a public AI company, incorporated in Nevada and headquartered in Vero Beach, FL. IPO'd Feb 22, 2012.
OTC; AI infrastructure/data center holding company.
Equity grants at Mitesco, Inc. typically include incentive stock options (ISOs) and non-qualified stock options (NSOs).
Mitesco secured a $30 million equity line of credit in June 2026 to fund acquisitions and expansion, capital raised as it shifts from its earlier operations into AI infrastructure. Incorporated in Nevada in 2012 and based in Vero Beach, Florida, the company (ticker MITI, traded over-the-counter on the OTCQB) now runs data centers through its Centcore subsidiary. Centcore builds a compact edge computing unit called TC/DC, a modular data center node meant to run AI workloads closer to users in homes, rural areas, and offices, with prototype testing set for Q3 2026 and commercial delivery targeted for Q1 2027.
Sources: mitescoinc.com · sec.gov · globenewswire.com · globenewswire.com
Equity comp at Mitesco, Inc.
- Mitesco has no active equity incentive plan today. Its 2021 Omnibus Securities and Incentive Plan was terminated by the board on January 7, 2024, which also cancelled all previously granted stock options that had not yet been exercised, for stated technical and compliance reasons. Since then the company has compensated its board and advisory board members with direct restricted stock issuances outside of any formal incentive plan, rather than through RSU or option grants with standard vesting terms.
Researched 2026-07-23.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Mitesco, Inc..
If you have left Mitesco, Inc. (MITI) with vested incentive stock options (ISOs), most stock plans give you 90 days from your departure date to exercise or forfeit them. Exercising everything at once concentrates the AMT bargain element into a single tax year. This calculator computes your window deadline from your departure date, the alternative minimum tax (AMT) cost of a full exercise at the current trading price, and the partial-exercise share count that maximizes expected after-tax value.
All Mitesco, Inc. tools → · Use the generic Post-Termination ISO Exercise Calculator for any company.
Mitesco, Inc. equity questions
- I left Mitesco, Inc.. How long do I have to exercise my ISOs?
- Most stock plans give you 90 days from your departure date to exercise vested incentive stock options (ISOs); unexercised options are forfeited when the window closes. Tax law is slightly wider: ISO treatment requires you to have been an employee within 3 months of exercise (Internal Revenue Code Section 422(a)(2)), so options exercised under an employer-extended window are taxed as non-qualified stock options (NSOs). Check your grant agreement for Mitesco, Inc.'s exact terms. The calculator above computes your deadline from your departure date, the alternative minimum tax (AMT) cost of exercising, and the share count that maximizes after-tax value.
- Does Mitesco, Inc. grant ISOs, NSOs, or RSUs?
- Equity compensation at Mitesco, Inc. typically takes the form of incentive stock options (ISOs) and non-qualified stock options (NSOs). Incentive stock options can trigger the alternative minimum tax (AMT) when you exercise.
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