TaxEru calculates your UK Self-Assessment in real time — income tax, National Insurance, Capital Gains, and crypto. Know your bill today, not on 31 January.
No card required. Supports GBP and USDC income. 2023–24 through 2026–27.
You've been putting off the spreadsheet. You're not sure how much you owe. You might be missing deductions. And if you're paid in USDC, you're not even sure where to start.
TaxEru changes that. Log income as you earn it. Watch your tax liability update in real time. Arrive at filing day knowing every number.
2025–26 Tax Summary
Income, expenses, net profit, and estimated tax — updated every time you log a transaction. No waiting until year end.
Log GBP invoices in seconds. Categorise by type: consulting, freelance, e-commerce, rental, dividends, and more.
All 18 SA103 expense categories. Allowable vs disallowable, auto-classified. Built-in guidance for mileage, home office, and more.
Income tax, Class 4 NIC, CGT, trading allowance, personal allowance taper, and payments on account — all calculated live.
Download a CSV keyed to HMRC box references (Box 1 through Box 38). Hand it to your accountant or file it yourself.
Your data lives in your account, not a shared pool. Row-level security means no one else can see your transactions.
TaxEru tracks capital gains across asset classes — crypto received as payment, investment purchases, and share disposals — all via HMRC-correct Section 104 pooling.
Get startedIncome at receipt date
GBP value on the day you received crypto — auto-fetched from historical exchange rate data.
Capital gains on disposal
When you sell crypto or shares, TaxEru calculates your CGT gain or loss automatically.
Post-Oct 2024 CGT rates
18% (basic rate) and 24% (higher rate) applied correctly, with £3,000 annual exemption.
Loss carryforward
Unused losses from prior years carry forward automatically — TaxEru infers them from your history.
Sign up and fill in your details — name, UTR, pension contributions, prior-year liability. Five minutes, once.
Add income and expenses whenever they happen. GBP or USDC. Exchange rates auto-fetched. Takes seconds per entry.
Your full Self-Assessment calculation updates live. Export your SA103 CSV when you're ready to file.
TaxEru encodes the nuances that trip people up — the personal allowance taper above £100k, the correct Class 4 NIC rates, trading allowance optimisation, and payment on account schedules. Four tax years pre-configured: 2023–24 through 2026–27.
Free to use. No card required. Your data, always under your control.
Create your free account