TaxLens is a UK tax-awareness simulator for PAYE earners. Enter your numbers. See your position. No advice, no jargon — just clarity.
Simulations based on publicly available HMRC rules. You control what you save.
Currently in development · Join the waitlist · No product available yet · More income types coming soon
Illustrative only. Based on 2025/26 HMRC rules. Not financial advice.
Personal allowance tapers to zero between £100k–£125,140. Effective rate: 60%.
Higher-rate taxpayers can reclaim 40% on contributions. It doesn't happen automatically.
A cash bonus is fully taxed. Via pension sacrifice, you often keep significantly more.
Above £60k, child benefit is clawed back. Above £80k, it's gone entirely.
£20k annual ISA allowance resets April 5th. Unused allowance is lost permanently.
Donations via Gift Aid reduce adjusted net income — potentially below the £100k threshold.
Salary, bonus, pension, student loan, child benefit. No bank connection needed.
Your estimated tax, take-home and tax-awareness overview. Traps flagged instantly.
Adjust pension contributions or bonus sacrifice. See the illustrative impact in real time.
Full educational snapshot for 2025/26. Bring it to your accountant or use it yourself.
Contractors, sole traders and directors: coming soon. Join the waitlist.
Monthly planning tools in development. Join the waitlist for early-access pricing.
Tax-awareness overview: moderate
3 areas identified where common planning approaches may be relevant to explore.
Flags identified
Year-end checklist
Illustrative sample only. Not financial advice.
Beta access opening in batches. Add your email and we'll let you know when your spot is ready — plus a free 2025/26 tax-year checklist.
No spam. You control what you save.
Early-access price for waitlist members
Full price will be £19 at launchNo payment taken now. Only charged when ready — and only if you choose to proceed.
By continuing you agree to our Privacy Policy and Terms of Use.
Your answers shape your snapshot. Never used to identify you individually.
No payment taken now. We'll be in touch when your snapshot is ready.
Thanks for reserving early access. TaxLens is currently in development — we're building it now. No payment will be taken until the product is ready and you choose to proceed.
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This isn't a corporate about page. It's an honest explanation of the problem we're trying to solve, what TaxLens is, and what it isn't.
If you're a UK professional earning a reasonable salary, you probably know there are things you could be doing better with your tax position. But actually understanding how they apply to your specific income picture usually means an afternoon of this:
After all of that, most people still don't have a joined-up picture of their own income and tax position.
TaxLens was created to make UK tax concepts easier to understand — through educational simulations, plain-English explanations, and calculations based on publicly available HMRC rules.
Built by a UK tech professional with direct experience of PAYE income, pension planning confusion, and the specific frustration of trying to understand a complex tax position across multiple fragmented sources.
Our goal is to help UK earners better understand their income and tax position before making financial decisions — or before walking into a conversation with an accountant or adviser.
Not to replace professional advice. Not to manage anyone's money. Just to make the starting point less confusing and less expensive than it currently is.
If any of this sounds familiar — the googling, the fragmented answers, the vague sense that you're missing something — TaxLens was built for you.
TaxLens is operated by Jaydeep Karkare, trading as TaxLens. For UK GDPR purposes, we are the data controller for personal data collected through this website. Contact: privacy@taxlens.io.
| Data | Why | Legal basis |
|---|---|---|
| Email address | To notify you when TaxLens launches | Consent (Art 6(1)(a)) |
| Salary band (optional) | Anonymously aggregated to prioritise features | Consent (Art 6(1)(a)) |
| Income picture responses (optional) | Anonymously aggregated to shape product | Consent (Art 6(1)(a)) |
| Biggest tax question (optional) | Anonymously aggregated to shape content | Consent (Art 6(1)(a)) |
| Analytics / usage data | To understand and improve the website | Legitimate interests (Art 6(1)(f)) |
We do not collect special category data. Salary and income figures entered into TaxLens simulations are processed locally in your browser and are not transmitted to or stored on our servers.
To operate the waitlist and notify you at launch. To improve the product — questionnaire responses are primarily analysed in aggregated and anonymised form. To communicate product updates, if you have consented. We will never use your data for advertising or sell it to third parties.
We share data only with service providers necessary to operate TaxLens: email delivery provider (to store your email and send notifications), website hosting provider, and analytics provider (subject to cookie consent). All providers are bound by data processing agreements.
Waitlist emails are retained until you unsubscribe or request deletion. Questionnaire responses are retained in anonymised form; identifiable responses deleted within 12 months. Analytics data retained for up to 26 months.
Request a copy of your data.
Ask us to correct inaccurate data.
Ask us to delete your data.
Object to processing based on legitimate interests.
Withdraw at any time without affecting prior processing.
Receive your data in machine-readable format.
To exercise any right, contact us at privacy@taxlens.io. We respond within one calendar month. You may also complain to the ICO at ico.org.uk or 0303 123 1113.
TaxLens is for adults only. We do not knowingly collect data from anyone under 18. Contact us if you believe a minor has submitted data.
ICO: ico.org.uk · 0303 123 1113
By accessing taxlens.co.uk you agree to these Terms of Use. If you do not agree, please do not use the website. These terms apply to all visitors and waitlist members.
TaxLens provides educational information, illustrative estimates and tax-awareness simulations only. All outputs are based on publicly available HMRC tax rules and user-entered assumptions.
TaxLens does not provide financial advice, investment advice, tax advice, or any regulated service under the Financial Services and Markets Act 2000. TaxLens is not authorised or regulated by the Financial Conduct Authority.
Nothing on this website constitutes a personal recommendation, suitability assessment, or suggestion that any financial product or strategy is appropriate for your circumstances. TaxLens does not recommend specific pension providers, investment platforms, funds, ETFs or financial products.
We make reasonable efforts to reflect current HMRC rules. However, tax rules change frequently and outputs may not reflect the latest changes. All outputs are illustrative estimates based on user-entered assumptions and do not account for every aspect of your individual tax position. You should not rely solely on TaxLens outputs when making financial decisions. We strongly recommend consulting a qualified tax adviser or FCA-authorised financial adviser for personalised guidance.
To the fullest extent permitted by law, TaxLens and its operators exclude all liability for any loss arising from reliance on our simulations, any financial or tax decisions made on the basis of our outputs, any inaccuracy in our content, or any interruption to the website. Nothing in these terms excludes liability for death or personal injury caused by negligence, or fraud.
All content on this website is owned by or licensed to TaxLens and protected by applicable intellectual property laws. You may not reproduce or distribute TaxLens content without express written permission, except for personal non-commercial use.
These terms are governed by the laws of England and Wales. Disputes shall be subject to the exclusive jurisdiction of the courts of England and Wales.
Cookies are small text files placed on your device by websites you visit. Under UK GDPR and PECR, we must tell you what cookies we use, why, and obtain your consent before placing non-essential cookies.
| Cookie | Type | Purpose | Duration |
|---|---|---|---|
| cookie_consent | Essential | Stores your cookie consent preference | 12 months |
| session_id | Essential | Maintains your session | Session |
| _ga, _ga_XXXXX | Analytics | Analytics — only set with your consent | Up to 2 years |
We do not use marketing, advertising or tracking cookies. We do not build profiles of individual users or share data with advertising networks.
You can manage or withdraw consent at any time via your browser settings or by contacting us. Note that disabling essential cookies may affect how the website functions. For more information visit allaboutcookies.org or ico.org.uk/cookies.
Any salary, pension or income figures you enter into TaxLens simulations are processed locally in your browser only. They are not transmitted to our servers, not stored as cookies, and not retained after your session ends.