TaxHeaven
Answers UK self-employed tax questions in ChatGPT using HMRC rates, from tax bills to VAT and deadlines.
What TaxHeaven can do in ChatGPT
UK self-employed tax figures on HMRC rates.
Tax Bill Estimate
Income tax, National Insurance and take-home pay.
MTD Check
See if Making Tax Digital applies and when.
Deadline Countdown
All your tax deadlines with countdown timers.
VAT Tools
Add or remove VAT and compare the Flat Rate Scheme.
Receipt Scanning
Scan receipts and sort them into tax categories.
You stay in control
You approve access, and you can disconnect TaxHeaven at any time.
Apps 1
What TaxHeaven does in ChatGPT
The TaxHeaven plugin answers UK tax questions for self-employed workers, freelancers, sole traders and landlords inside ChatGPT. It uses rates published by HMRC, the UK tax office, for the 2024-25 to 2026-27 tax years, so the figures match the official tables.
It has eight tools. They work out income tax, National Insurance and take-home pay for England and Scotland, check whether Making Tax Digital applies to you and when, list tax deadlines with countdowns, calculate payments on account and monthly saving amounts, and handle VAT sums and thresholds.
It can also tell you whether an expense is deductible under HMRC rules, calculate capital allowances on equipment and vehicles, and scan receipts into tax categories for your return. The listing says no sign-up is needed and no data is stored, and points to free HMRC-recognised software for MTD.
Who it is for
- UK sole traders and freelancers
- Landlords filing self-assessment
- Self-employed people facing MTD
How to add TaxHeaven to ChatGPT
- Open the TaxHeaven listing in ChatGPT ↗.
- Click Install plugin.
- Sign in to your TaxHeaven account when asked and approve the access it requests.
- Start a chat and ask for what you need, mentioning TaxHeaven if ChatGPT does not pick it up.
- To stop, disconnect TaxHeaven under apps in your ChatGPT settings.
Questions about TaxHeaven
What is the TaxHeaven ChatGPT plugin?
The TaxHeaven plugin answers UK tax questions for self-employed workers, freelancers, sole traders and landlords inside ChatGPT. It uses rates published by HMRC, the UK tax office, for the 2024-25 to 2026-27 tax years, so the figures match the official tables. It is listed in ChatGPT's plugin marketplace under Finance.
What can I ask TaxHeaven to do in ChatGPT?
For example: "I am self-employed in the UK earning £65k a year. What is my tax bill?", "I am a freelancer earning £55,000. Do I need to use Making Tax Digital?", "Scan and categorise this receipt for my tax records".
Who makes the TaxHeaven plugin for ChatGPT?
The ChatGPT listing names TaxHeaven Ltd as the developer. The version listed on 8 October 2026 was 1.0.0.
How do I add TaxHeaven to ChatGPT?
Open the TaxHeaven listing in ChatGPT, click Install plugin, sign in to your TaxHeaven account and approve the access it asks for. Then ask for what you need in a chat, mentioning TaxHeaven if ChatGPT does not pick it up.
Can TaxHeaven change things in my account, or only read?
It runs tax calculations from the figures you give and scans receipts you share. The listing says no sign-up is required and no data is stored.
Who is the TaxHeaven plugin for?
UK sole traders and freelancers, landlords filing self-assessment and self-employed people facing MTD.
Which tax years does TaxHeaven cover?
The listing says calculations use HMRC rates for 2024-25 through 2026-27.
Does it work for Scotland?
Yes. Income tax and take-home pay calculations cover England and Scotland.
Can it help with VAT?
It can add or remove VAT, compare the Flat Rate Scheme and check registration thresholds.
Does TaxHeaven see my ChatGPT chats?
When TaxHeaven is connected, ChatGPT may share the parts of your chats and memories that matter for a request with TaxHeaven. What TaxHeaven does with that data falls under its own terms and privacy policy. ChatGPT keeps your training-data settings, and you can disconnect at any time.
How do I disconnect TaxHeaven from ChatGPT?
Open your ChatGPT settings, go to apps, and disconnect TaxHeaven. You can reconnect later from the listing.
What are alternatives to TaxHeaven in ChatGPT?
Similar plugins in the ChatGPT marketplace include Expensify, Inkle and Kintsugi AI. Each has its own page in this directory.
Privacy and your data
When TaxHeaven is connected, ChatGPT may share the parts of your chats and memories that matter for a request with TaxHeaven. What TaxHeaven then does with that data falls under its own terms and privacy policy, not only OpenAI's. ChatGPT keeps your training-data settings for data that comes from connected apps, and you can disconnect at any time.
TaxHeaven privacy policy ↗TaxHeaven terms ↗OpenAI: apps in ChatGPT ↗