Central London · England

Accountants in Castle Baynard

Businesses in Castle Baynard use us for three reasons: the price is known in advance, the filing is done on time, and the numbers are explained in plain English. Every service listed below is available in Castle Baynard at the published fee, which is the same across England. We are an online firm with UK-based staff, a named contact for each client and a rule that nothing is filed until you have approved it.

Next deadlines

7 Nov 2026VAT return and payment for the quarter that ended last month
7 Dec 2026VAT return and payment for the quarter that ended last month
7 Jan 2027VAT return and payment for the quarter that ended last month
14 Jan 2027Confirmation statement due within 14 days of your review date, at least once every 12 months

Services

What we do for Castle Baynard and what it costs

All 26 services below are available to Castle Baynard clients at the published fee. Every fee is fixed and confirmed in writing before work starts.

Self Assessment Tax Returnsfrom £129Your SA100 prepared, checked against HMRC records and filed online, with payments on account worked out well before 31 January.Limited Company Accountsfrom £299Statutory accounts and the CT600 prepared from your records, explained to you, then filed with Companies House and HMRC for one fixed yearly fee.Bookkeepingfrom £49/moBank feeds, receipt capture and monthly reconciliation in cloud software, priced by transaction volume, so the books are always current and year end is quick.VAT Returnsfrom £35/moQuarterly VAT returns reviewed and submitted through MTD-compatible software, with scheme advice, registration and catch-up returns at fixed fees.Payrollfrom £25/moRTI payroll run every pay period with payslips, HMRC submissions, pension auto-enrolment and year-end P60s, from £25 a month for a director-only company.Corporation Taxfrom £199Corporation Tax computations and CT600 returns, including capital allowances, loss relief and marginal relief, filed with HMRC for a fixed per-return fee.Sole Trader Accountsfrom £149Year-end accounts for the self-employed, from tidy records or a shoebox, feeding straight into your Self Assessment so the figures HMRC sees are right.Company Formationfrom £49Limited company incorporated at Companies House within a working day, with the share structure, registered office and HMRC registrations done properly from the start.CIS Tax Returnsfrom £30/moCIS monthly returns for contractors, annual refund claims for subcontractors and gross payment status applications, all at fixed fees.R&D Tax Creditsfrom £999Research and development relief under the merged scheme: a free eligibility review first, then a fixed-fee claim with the technical narrative, computation and filing.Crypto Taxfrom £199Crypto tax reports from your exchange and wallet history: capital gains under the pooling rules, income from staking and mining, and the Self Assessment filing.Capital Gains Taxfrom £149Capital gains computations and returns for property, shares, funds and business assets, including the 60-day UK property return and relief claims.Landlord & Property Taxfrom £149Rental accounts and tax returns for landlords with one property or a portfolio, including the finance-cost credit, furnished holiday let changes and MTD.Contractor Accountantsfrom £75/moMonthly accounting for contractors trading through a limited company: accounts, CT600, payroll, dividends and IR35 reviews in one fixed package.Startup Accountantsfrom £59/moAccounting for new companies from formation through the first years: registrations, books, accounts, VAT and payroll in monthly packages, plus SEIS/EIS advance assurance.E-commerce Accountantsfrom £79/moAccounting for online sellers across marketplaces and your own store: channel reconciliation, marketplace and import VAT, inventory and the year-end filings, monthly.Freelancer Accountantsfrom £45/moAccounting for freelancers as sole traders or through a company: books and tax return from £45 a month, full company compliance at £79, or annual-only at £229.Small Business Accountantsfrom £65/moComplete accounting for established small businesses in one monthly fee: accounts, tax, bookkeeping, and VAT, payroll and management accounts as you need them.Locum Accountantsfrom £69/moAccounting for locum doctors, dentists, pharmacists, vets and allied health professionals: multiple engagements, NHS pension and superannuation, sole trader or company.Management Accountsfrom £99/moMonthly or quarterly management accounts with written commentary and KPIs, delivered on a fixed working day, so decisions are made on current numbers.Tax Planningfrom £249Fixed-scope tax planning reviews with a written report: personal tax, director remuneration, combined business and personal, and pre-year-end planning for companies.Business Advisoryfrom £149Advisory for business owners at fixed fees: a 90-minute session with written summary, pricing and margin reviews, growth readiness reviews and a quarterly retainer.Cash-Flow Forecastingfrom £199Cash-flow forecasts you can run the business on: a 13-week rolling forecast, a 12-month forecast with scenarios, monthly refreshes, and lender-ready funding packs.HMRC Investigation Supportfrom £299HMRC compliance checks, enquiries and disclosures handled stage by stage at fixed fees, from the first letter to the closure notice or settlement.Making Tax Digitalfrom £99Making Tax Digital readiness, software setup and quarterly submissions for sole traders, landlords and VAT-registered businesses, at fixed fees.Accounting Software Supportfrom £99Cloud accounting software set up properly, migrated with history, repaired when it has gone wrong, and taught to you or your team, at fixed one-off fees.

Why IGI

Working with Castle Baynard businesses

Clients in Castle Baynard are not a branch or a territory to us; they are files handled by the same team that serves the rest of the UK, at the same price. The fee you see is confirmed in writing before work starts. The dates you see are diarised and chased. And the person who prepares your first return is the person who prepares the next one.

One fixed fee for self assessment tax returns in Castle Baynard, agreed in writing before any work starts and never changed part-way through the job, however long it takes us.

Nothing for Castle Baynard is left to the last week. Each deadline relevant to self assessment tax returns is tracked from the day you join, with the next four shown on every page we send you.

We serve Castle Baynard remotely by design: records by WhatsApp or email, drafts back for approval, filing electronic. The saving on premises is passed to you in the fee for self assessment tax returns.

Local facts

About Castle Baynard

Castle Baynard sits in Central London, within City of London, postcode district EC4V. Income tax in England follows the UK rates: 20% basic to £50,270, 40% higher to £125,140 and 45% additional, with the personal allowance of £12,570 tapered away above £100,000. National Insurance, VAT and Corporation Tax are UK-wide, and Stamp Duty Land Tax applies to property purchases.

Nearby places we also serve
Place	Distance	Direction
Blackfriars	0.1 mi	SE
Ludgate Hill	0.1 mi	NE
Puddle Dock	0.1 mi	SE
Farringdon Without	0.2 mi	NW
Fleet Street	0.2 mi	NW
Old Bailey	0.2 mi	NE
Farringdon Within	0.3 mi	NE
St Paul's, City of London	0.3 mi	E

All places in Central London · Central London places beginning with C

Worth knowing

Rules that affect most businesses here

Confirmation statements and identity verification

The confirmation statement is the annual check that the public register is right: officers, registered office, SIC codes, shareholders and the PSC register. It carries a £50 fee and no financial penalty for lateness, but failure to file leads to compulsory strike-off. The identity verification regime introduced in November 2025 has added a further check to every statement.

CIS deductions

CIS turns construction subcontractors into advance taxpayers: a fifth of every labour payment goes to HMRC before they see it. Registering keeps the rate at 20% rather than 30%; gross payment status, for established businesses with a clean record, removes deductions altogether. The annual return is where the overpayment comes back, and filing it early brings the refund sooner.

Late filing penalties

HMRC's penalties for a late Self Assessment return are automatic: £100 the day after 31 January, £10 a day from three months late up to £900, then the greater of £300 or 5% of the tax at six and twelve months. Interest and separate late-payment penalties apply to the tax itself. Companies House charges £150 to £1,500 for late accounts, doubling for a second consecutive year.

Making Tax Digital for Income Tax

MTD for Income Tax replaces one annual return with quarterly digital updates and a year-end declaration, submitted from software. The threshold is gross trading and property income, measured two years earlier, and started at £50,000 in April 2026 before falling to £30,000 in April 2027. Anyone affected needs digital record keeping in place before their start date, not after.

The Self Assessment calendar

Self Assessment runs on a fixed annual cycle. Registration by 5 October following the tax year, online filing and payment by 31 January, and a second instalment on 31 July for those making payments on account. The penalties for lateness are automatic and escalate monthly, which is why we file early and chase approvals well before the window closes.

Questions

Questions from Castle Baynard

Can you deal with HMRC and Companies House for me?

Yes. Once you authorise us as your agent, HMRC and Companies House correspond with us about the filings we make for your Castle Baynard business, and we can see your accounts and respond on your behalf. Authorisation is free and takes a few days to activate. Routine correspondence about work we have filed is handled at no extra charge.

I already have an accountant in Castle Baynard. How hard is it to switch?

It takes about two weeks and costs nothing extra. You authorise us, we write to your current accountant for professional clearance and your records, and we transfer the agent authorisations. We pick up the next filing without a gap. You do not need to wait for a year end, and we tell you honestly if switching mid-job would be awkward.

What if my Castle Baynard business is a partnership or an LLP?

Both are covered. Partnerships need a partnership return and a Self Assessment for each partner; LLPs file accounts with Companies House under company-style rules as well. We quote a fixed fee for the set based on the number of partners or members, and the process is the same as for any other client in Castle Baynard: records in, draft out, approve, filed.

Do you work with businesses in Central London that are not in Castle Baynard itself?

Yes. Every place in Central London has its own page on this site and the same fees apply throughout. The nearest-places list on this page links to them. Wherever in England your business is based, the service is identical because none of it depends on where you are.

Do you have an office in Castle Baynard?

No. IGI Accounting is an online-only firm. We serve Castle Baynard and every other UK postcode remotely, with records sent by WhatsApp or email and everything filed electronically. The absence of local premises is why the fee for self assessment tax returns is the same in Castle Baynard as anywhere else in the country, and why there is nothing to visit and nothing to print.

Is self assessment tax returns in Castle Baynard really the same price as elsewhere?

Yes. The fee published on this page is what a client in Castle Baynard pays and what a client in any other part of England pays. It is confirmed in writing before work starts and the invoice matches the quote. Where a higher package applies because your situation is more complex, we say so at the quote stage, never afterwards.

Let us take the deadlines off your plate in Castle Baynard

Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.

Get a fixed quote on WhatsApp Email info@igiaccounting.co.uk