Silicon Fen — biotech founders, AI researchers, and university spin-out consultants meeting MTD ITSA. From 6 April 2026 every Cambridge sole trader and landlord earning £50,000+ must submit quarterly to HMRC. We do all of it — setup, software, quarterly filings, year-end. £495 one-time + £150/mo.
CGMA-qualified · 24 years professional finance · Single named accountant
Cambridge's sole-trader economy reflects the densest deeptech ecosystem in Europe: Cambridge Science Park, Granta Park, the Babraham Research Campus, and St John's Innovation Centre all generate a constant flow of pre-incorporation founders and academic consultants billing as sole traders. AI/ML researchers tied to the ARM, Microsoft Research, and Cambridge University Computer Lab cluster add a high-day-rate consulting cohort. Publishing and ed-tech freelancers cluster around CUP and Hills Road. The Cambridge property market is one of the UK's tightest, producing a small but high-value landlord base across CB1–CB5. The MTD ITSA SERP locally is held by templated firms — no national specialist has positioned for Cambridge's spin-out cohort specifically.
Same prices wherever you are in the UK — no premium for Cambridge sole traders.
We configure everything. You file the submissions yourself.
Start →Full breakdown of what's included: /services/mtd-itsa/
6 April 2026 if your qualifying income exceeds £50,000. The threshold drops to £30,000 from April 2027 and £20,000 from April 2028. Cambridge-based sole traders and landlords are caught identically to the rest of the UK — HMRC applies the same rules.
All four quarterly submissions, the year-end Final Declaration (with year-end adjustments rolled into it), monthly bookkeeping (up to 200 transactions/month), one VAT return per quarter if applicable, and email/Slack support with one-business-day response. Single CGMA-qualified accountant handles your account end-to-end.
MTD ITSA applies from April 2026 if your gross sole-trader + property income for the 2024-25 tax year was over £50K (HMRC checks the prior year's return). Pre-incorporation consulting and SAB / advisor fees are sole-trader income and count toward that threshold. Once your company forms and billing moves to the company, future consulting goes out of MTD ITSA (into Corporation Tax). We handle the cutover so quarterly submissions reflect the sole-trader period accurately.
UK tax residents pay UK Income Tax on worldwide self-employment income, so USD invoices to US clients (DeepMind, OpenAI, Anthropic, US startups) are UK MTD ITSA self-employment income. You report in GBP, converting at the date the income is recognised (cash basis = receipt; accruals = invoice date). We set a consistent FX rule at setup so quarterly submissions are predictable rather than re-debated each period. The whole ML / AI research consulting stream collapses into one self-employment trade.
MTD ITSA is administered nationally — your physical accountant location doesn't affect the submission process. BlackpeakCFO is 100% remote, ACMA-CGMA-qualified, and gives every Cambridge client the same single-named-professional accountability you'd get from a London boutique at £400+/mo. The £150/mo Plus tier is the gap most Cambridge accountants haven't filled.
Send your details — we reply within one business day, by email. We confirm fit, agree the tier, you're compliant within two weeks.
Send My Details →Or email stuart@blackpeakcfo.com