Teslita
Free of charge

Tax-ready driving log and home-charging statement for your Tesla.

Every trip your Tesla takes, and every kWh it charges at home — logged automatically, classified with one tap, and exportable as a signed PDF your employer, accountant or tax authority can verify. Undocumented business kilometres become personal kilometres; Teslita makes sure none go missing.

Ready in two minutes No dongle or extra app Cryptographically signed reports

Home charging, documented for reimbursement

Every kWh your Tesla takes at home — date, time, duration, energy added, and derived cost. Location is verified by GPS at the moment of charging, so the statement proves the electricity went into this car at this address.

  • Per-session detail, not rounded monthly totals
  • Cost derived from your actual kWh price
  • Home location verified by GPS during each session
  • Signed PDF export with hash-chained audit trail
Teslita home-charging statement sample — 12 October sessions with kWh, cost, battery percentages and an Ed25519 signature.

For anyone whose employer reimburses home-charging costs — or who claims them on tax.

A driving log that writes itself

Teslita captures every trip your Tesla makes from the car's own gear, GPS and odometer signals. Start and end address, route, kilometres, timestamp — all automatic. You classify each trip as business, private or commute with one tap.

  • Every trip, no forgotten entries
  • Continuous odometer chain — no gaps an auditor can challenge
  • One-tap business / private / commute
  • Signed monthly export with a verifiable PDF signature
Teslita trip log sample — 284 trips across six months with odometer continuity and commute / private classifications.

For anyone who needs to prove which kilometres were for work — company-car drivers, the self-employed, or anyone claiming mileage reimbursement.

This is what you'll see after signup

A single dashboard that pulls every Supercharger session, every home kWh and every trip into one view — updated live as the car streams.

Teslita dashboard with sidebar navigation — Tesla Model Y at 80% plugged in, 28 charging sessions over one year totalling 735.25 kWh and €252.87, monthly breakdown bar chart, driving overview, cost per kWh by source and top charging locations.

Built to survive an audit

A log is only useful if whoever reviews it trusts it. Teslita is designed so your employer, accountant or tax auditor can verify the document on their own — without taking our word for it.

Hash-chained edit log

Every change to a trip or charging session is linked by cryptographic hash to the one before it. A tampered entry breaks the chain and the report fails verification.

Signed PDF exports

Every report is signed with an X.509 certificate. The signature embeds a fingerprint of the content and the moment it was exported — so you can prove the document hasn't been edited since submission.

Immutable source data

Teslita doesn't ask your Tesla how far you drove. The car streams raw odometer, GPS and gear signals to us as events, and reports are rebuilt from those raw events — not from editable totals.

Three steps, then it runs itself

Setup takes about two minutes. After that, you only touch Teslita when you want to classify a trip or download a report.

STEP 1

Connect your Tesla

Sign in through Tesla's own portal — we never see your password. Approve a virtual key in the Tesla app so your car can stream its signals to us.

STEP 2

Drive normally

Your Tesla streams gear, GPS, odometer and charging signals to Teslita automatically via Fleet Telemetry. Nothing to install, nothing to remember to start.

STEP 3

Classify and export

Tap each trip as business, private or commute — or batch-classify at month-end. Download a signed PDF for your employer, accountant or tax office.

Questions tax-conscious Tesla owners ask

Will my accountant or employer accept this?
The exported PDF contains the four data points any mileage-logbook standard expects: date, start and end address, odometer, and a business/private/commute classification. Each report is cryptographically signed — your accountant can verify in any standard PDF reader that nothing has been altered since export. Whether a specific employer or tax authority accepts a digital log at all is ultimately their decision, but Teslita gives you the evidence they are entitled to ask for.
Why is Teslita free?
Because it can be. Teslita is a side project, not a startup. Server costs are low, there's no paid tier, no ads, and no plan to sell or share your data. If that ever changes you'll hear about it long before it affects you — and any account will always be exportable in full, so you can walk away at any time.
Can I edit a trip after it's recorded?
Yes — you can correct a wrong classification, rename a location, or merge two trips that should have been one. Every edit is written to a hash-chained audit log together with a timestamp, so nothing is erased. That's what makes the final PDF defensible: a reviewer can see both the corrected trip and the history of how it got there.
How is my data stored, and who can see it?
Your telemetry is stored in a database scoped strictly to your account. No third parties receive it. Your home address is used only to classify trips as "home ↔ away" and to separate home charging from public charging — it never appears on shared reports unless you deliberately include it.
Can I export everything if I stop using Teslita?
Yes. Every trip, every charging session, every edit and every signed report is exportable as a structured JSON bundle plus the original PDF reports. No lock-in — if you leave, you walk away with the full history.
Do I need to install anything in the car?
No. Teslita uses Tesla's official Fleet Telemetry stream. You approve a virtual key in the Tesla app once, and the car streams its signals directly to Teslita. There is no dongle, no OBD adapter, no always-on app on your phone.
Does it work with every Tesla model?
Any Tesla that supports Fleet Telemetry — which covers all current Model S, 3, X and Y vehicles. If your car can be paired with a third-party virtual key in the Tesla app, it works with Teslita.
What if I forget to classify a trip for weeks?
Nothing is lost. Unclassified trips are still recorded with all their detail; they simply wait for you. You can classify weeks' worth of trips in a single sitting, or batch-assign a default to anything that matches a pattern (e.g. all trips to your office address = commute).
Is Teslita affiliated with Tesla?
No. Teslita is an independent service that uses Tesla's official Fleet Telemetry API with your explicit authorisation. It is not operated, endorsed, or otherwise affiliated with Tesla, Inc.

And the rest

Useful, but not why you came here.

Charging cost analytics

Monthly and annual breakdowns of home, Supercharger and other public charging — with the real cost per kWh.

Supercharger invoice archive

Teslita fetches and stores your original Tesla Supercharger invoices so you keep them even if Tesla archives them.

Live trip map

See every drive plotted on a map, with start and end addresses, duration and energy used.

Multi-vehicle

One account, any number of Teslas. Reports can be filtered or combined by car.

15 languages

Interface available in English, German, Danish, Dutch, French, Italian, Norwegian, Spanish, Swedish, Portuguese, Finnish, Polish, Chinese, Japanese and Korean.

Saved drivers & destinations

Autocomplete for frequent passengers, clients and destinations so classifying trips takes seconds, not minutes.

Start your driving log today. Free of charge.

Connect your Tesla in two minutes. Your first trips and charging sessions will be ready to export as soon as they're logged. Apps that do this commercially typically charge €40–100 per year — Teslita doesn't.

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