Royal Navy's home port — defence contractors, marine engineers, and Solent landlords in MTD scope. From 6 April 2026 every Portsmouth 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
Portsmouth's sole-trader economy is anchored by HMNB Portsmouth (Royal Navy fleet base), BAE Systems Maritime, QinetiQ Haslar, and a long defence supply chain. Marine engineers, naval architects, and security-cleared defence consultants make up much of the sole-trader base. Add ferry/cruise sector freelancers tied to Brittany Ferries and the International Port, plus a steady Solent-area landlord pool across PO1–PO5. University of Portsmouth's cybersecurity programmes seed a growing infosec consulting cluster. The MTD ITSA SERP for Portsmouth is held by generic regional bookkeepers — no national player has positioned.
Same prices wherever you are in the UK — no premium for Portsmouth 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. Portsmouth-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.
No. Security clearance is a personnel-vetting matter, not a tax-treatment one. Your invoiced day-rate income is self-employment income for MTD ITSA, filed quarterly. Some defence engagements require invoice handling through accredited platforms (e.g. for SECRET-level work) — we adapt the bookkeeping setup to whatever invoicing system the client requires while still capturing data digitally for MTD compliance.
Yacht-charter operations are trading income (a self-employment trade) — not property income — because you're providing a service with skilled crew, not just letting a vessel. The yacht itself is a fixed asset with capital allowances; charter revenue is sole-trader trading income on MTD ITSA. The classification matters because trading income has different expense rules from FHL.
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 Portsmouth 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 Portsmouth 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