Consultancy Built
for Every Business
Stage & Ambition

Sirius Global Solutions works with sole traders, partnerships, LLPs, and limited companies. Self-employed individuals benefit from our self-assessment tax preparation, National Insurance optimisation, and bookkeeping support. If your trading volume or liability exposure warrants incorporation, we advise on the right structure before setting up your company at Companies House — with no pressure to change what already works for your situation.

We begin with a jurisdiction alignment consultation to understand your UK trading intent, ownership structure, and HMRC obligations. We then manage the complete UK company formation at Companies House, appoint a registered office, register for Corporation Tax, advise on VAT thresholds, and guide directors through the identity verification requirements introduced by the Economic Crime and Corporate Transparency Act 2023. The entire sequence is typically completed within two to four weeks.

Engaging before trading begins is consistently the most cost-effective decision a startup can make. We help founders choose the right legal structure based on investment plans and liability, establish clean bookkeeping from the first transaction, set up an MTD-ready VAT registration where applicable, and register for PAYE before the first hire. Retrospectively correcting structural or compliance errors costs significantly more than preventing them — and structural mistakes can affect investor due diligence for years.

Yes. Our cross-jurisdictional payroll advisory covers UK PAYE, RTI submissions, auto-enrolment pension duties, and P11D benefit-in-kind filings on the UK side, while our India-network partners coordinate PF, ESI, TDS, and professional tax compliance for the Indian entity. We also advise on secondment arrangements, shadow payrolls, and double taxation treaty relief for employees splitting time between the two territories — delivering a single, coherent compliance picture for both entities.

Post-Brexit, UK sellers trading into the EU face several overlapping obligations: marketplace facilitator rules (where Amazon or Shopify may collect VAT), the EU One-Stop Shop scheme for B2C sales above €10,000 annually into EU countries, IOSS registration for goods under £135 per consignment, and standard UK VAT returns for domestic sales. We assess your exact revenue mix across platforms, model whether EU OSS is beneficial, manage your UK quarterly returns, and coordinate any required EU registrations through our network — ensuring nothing is missed regardless of how many channels you sell through.

Yes. PSC owners working with NHS trusts and health sector clients face IR35 off-payroll working rules which shifted status determination responsibility to the engager from April 2021. We review your working-practice documentation, provide a written IR35 status opinion, and advise on the safest contract wording. We also manage your corporation tax return, annual dividend and salary extraction strategy, personal Self-Assessment SA100, and any P11D benefit filings — ensuring maximum legitimate take-home pay within HMRC's framework.

We work with individual landlords, portfolio investors, and corporate property vehicles. Our services for this sector include Stamp Duty Land Tax planning, Capital Gains Tax deferral strategies, Section 24 mortgage interest relief impact analysis, Annual Tax on Enveloped Dwellings (ATED) returns for high-value properties in corporate structures, and preparation of property income accounts. For portfolio landlords evaluating incorporation, we model the full tax and SDLT cost of transfer against the long-term benefits — providing a clear, evidence-based decision framework.