Tesla Stock (TSLA) Investment Calculator

What would a TSLA position bought at the IPO or any year-end since be worth today — as a lump sum or steady yearly buys — and how does it compare with an S&P 500 index fund? Then test target prices and estimate the tax on a sale. Values are shown in pounds, converted from TSLA's US-dollar prices.

Not investment advice. This is an educational calculator using approximate, split-adjusted year-end prices. Past performance does not predict future results, TSLA has been extremely volatile, and target prices are hypothetical. Speak to a regulated financial adviser or tax adviser before making investment or tax decisions.

Today's prices
Enter today's quote — defaults are placeholders. Both are quoted in US dollars.
Today's rate, used to turn US-dollar values into pounds.
Uses approximate year-end GBP/USD rates, so currency moves are included. Untick to ignore currency changes and use today's rate throughout.
Lump sum
Year-end closing price (or the June 2010 IPO price).
Regular investing
One buy at each year-end close from this year to 2025.
Your position
Enter as
The sale
In pounds, as on your contract notes. HMRC works out the gain in sterling, so currency moves count.
Held for
Your tax situation
Salary, pension, rental profit etc. this tax year, before the personal allowance. Gains that fit in the basic-rate band (up to £50,270) are taxed at 18%; the rest at 24%.
Other gains use up the exempt amount and basic-rate band first. Rates for 2025/26 onwards — verify with HMRC.
Your tax situation
After deductions, not counting this gain. Sets where long-term gains land in the 0/15/20% brackets.
For short-term gains.
0% in states with no income tax.
Worth today
—
—
Total return
—
—
Annualised (CAGR)
—
—
Same in S&P 500
—
—

Growth of your investment

Year-end values, price only

Year by year

Price data used (approximate, split-adjusted)

TSLA and the S&P 500 are priced in US dollars, so the prices below are in USD. Pound values elsewhere on this page use the approximate year-end GBP/USD rates in the last column (or today's rate if you untick historical rates).

TSLA year-end closes are adjusted for the 5-for-1 (2020) and 3-for-1 (2022) splits. The June 29, 2010 IPO price of $17.00 equals about $1.13 after splits. S&P 500 figures are index levels (price only — dividends, which have added roughly 1.5–2% a year, are not included). Values are rounded and may differ slightly from your broker's data.

How this is calculated

Why year-end prices only?
Year-end closes keep the data small and transparent, and they're enough to show the long-run picture. Real purchases happen at other prices, and intra-year swings for TSLA have often exceeded 50%, so your actual result may differ substantially.
Do I owe US tax on TSLA gains?
Generally not: the US doesn't tax capital gains made by UK residents on US shares, and you pay UK Capital Gains Tax instead. Your broker will usually ask you to complete a W-8BEN form, which matters for dividends (TSLA doesn't currently pay one). Check your own circumstances with a tax adviser.
What about losses?
If you sell for less than you paid, there's no CGT on the sale. Report the loss to HMRC (within four years) and it can offset other gains in the same tax year, with any excess carried forward to future years. Losses on shares can't be set against your salary.
How can I reduce CGT legally?
Common approaches are using each year's £3,000 exempt amount (selling in stages across tax years), transferring shares to a spouse or civil partner so both exemptions and basic-rate bands are used, and holding shares in an ISA (up to £20,000 of new subscriptions a year) or a pension. "Bed and ISA" — selling and rebuying inside an ISA — moves holdings into the tax-free wrapper over time.