Multi-countryLive

International — 8 Countries, Real Local Tax

UK-deep. International-aware. Run a Ltd, an LLC and a free-zone company side-by-side.

AccountsOS is built for the modern founder who isn't bound to one jurisdiction. We have real, encoded tax rules and forms for 8 countries: United Kingdom (deep), Ireland, UAE (incl. QFZP free-zone status), Bulgaria, Australia, United States (incl. quarterly estimated tax + sales-tax nexus + 1099/W-2), Hong Kong and Turkey. Plus 40+ currencies, multi-trading-entity isolation, and country-aware AI guidance.

In short

AccountsOS supports 8 countries with real local tax rules, not just multi-currency: GB (CT600, VAT 9-box, MTD, S455, marginal relief, dividends), IE (corporation tax, VAT, CT1), AE (UAE corporate tax, QFZP free zones, VAT), BG (corp tax, VAT), AU (income tax, BAS), US (quarterly estimated tax with safe-harbour, 50-state sales-tax nexus, 1099-NEC/MISC, W-2, 1096, W-3), HK (profits tax) and TR (corporate tax). 40+ currencies, multi-entity isolation, country-aware AI.

8
Countries
40+
Currencies
Per-entity
Tax regime
Try International — 8 Countries, Real Local Tax Free

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Everything International — 8 Countries, Real Local Tax can do

United Kingdom — deep

Built UK-first. Every UK rule is in here.

  • Corporation Tax with 19–25% banded marginal relief
  • VAT 9-box with HMRC rounding
  • Making Tax Digital (calculation live; submission shipping)
  • Director's Loan S455 deemed liability
  • Salary / dividend optimisation
  • Dividend allowance (£500), 8.75 / 33.75 / 39.35% bands
  • RTI / FPS payroll submission XML
  • Mileage at HMRC rates, home office at £10/week
  • Companies House daily sync
  • Self-assessment basis for directors

United States

Quarterly estimates, sales tax nexus, contractor and employee forms.

  • Quarterly estimated tax (April / June / Sept / Jan)
  • Safe-harbour rules (100% prior-year, 110% if AGI > $150k, 90% current-year)
  • Entity-aware: sole prop, S-corp, partnership, C-corp, multi-member LLC
  • 50-state + DC sales tax nexus tracking (Wayfair thresholds)
  • Marketplace facilitator detection (Amazon, Etsy, Shopify)
  • Form 1099-NEC (non-employee compensation, $600 threshold)
  • Form 1099-MISC (rents, royalties, attorney fees)
  • Form W-2 (employee wages)
  • 1096 transmittal (1099 batches), W-3 transmittal (W-2 batches)
  • PDF ready for FIRE / IRIS submission

United Arab Emirates

Corporate tax, VAT and the QFZP free-zone regime.

  • UAE corporate tax (9% above AED 375,000)
  • Qualifying Free Zone Person (QFZP) status tracking
  • VAT (5%) capture and calculation
  • Free-zone vs mainland entity distinction
  • FTA correspondence templates

Ireland

Limited company essentials.

  • Corporation tax (12.5% trading / 25% non-trading)
  • VAT (23% standard, 13.5%, 9%, 0%)
  • CT1 workpaper basics
  • Revenue correspondence templates

Bulgaria

Founder-friendly EU jurisdiction.

  • Corporation tax (10% flat)
  • VAT (20% standard)
  • NRA correspondence templates

Australia, Hong Kong, Turkey

Core local rules, growing depth.

  • AU — income tax basics, BAS
  • HK — profits tax basics
  • TR — corporate tax basics
  • More forms / submissions on roadmap based on user demand

Multi-entity & multi-currency mechanics

  • Run multiple trading entities under one user
  • Per-entity base currency (GBP, USD, EUR, AED, …)
  • Per-entity year-end and tax regime
  • Strict data isolation (RLS) per entity
  • Switch active entity from a single dropdown
  • 40+ currencies on transactions, FX-locked at date

Capabilities at a glance

8 countries with real local tax rules (not just multi-currency)

GB deepest: CT600, VAT 9-box, MTD, S455, RTI, dividends

US: quarterly estimated tax + sales-tax nexus + 1099/W-2 generation

AE: corporate tax + QFZP free-zone tracking + VAT

IE / BG: corporation tax + VAT computed

AU / HK / TR: core income / profits / corporate tax

40+ currencies with FX-locked GBP equivalents

Multiple trading entities side-by-side, per-entity tax regime

Country-aware AI — chat answers reference the right country's rules

Country-aware engagement letters and authority-response templates

How It Works

1

Pick your country at signup

Or add a second trading entity in a different country later.

2

AccountsOS configures itself

Tax rates, forms, year-end, currency and rule set apply to that entity automatically.

3

Transact normally

VAT, GST, sales tax — captured at source according to the local rules.

4

File the right forms

Country-aware workpapers and forms generated when you need them.

By the numbers

GB
Deepest coverage
CT600, VAT 9-box, MTD, S455, marginal relief, dividends, RTI
US
Forms ready
1099-NEC, 1099-MISC, W-2, 1096, W-3 generation
AE
QFZP-aware
Free-zone status tracked, corporate tax computed
IE / BG / AU / HK / TR
Core coverage
Local CT/VAT/income tax computed; forms on roadmap

Real-world Use Cases

UK Ltd founder with a US LLC subsidiary

Run both entities in AccountsOS. Each follows its own tax regime — UK corporation tax + VAT, US quarterly estimated + sales-tax nexus. Switch with the entity dropdown.

Founder relocating to UAE

Open a UAE entity, mark it as QFZP if applicable. Corporate tax computed at 9% above AED 375k. UK Ltd keeps running independently.

Irish consultancy

Use IE coverage for corporation tax (12.5% trading), VAT (23%), CT1 workpaper basics, Revenue correspondence templates.

US contractor on Stripe

Connect Stripe, capture every charge. Quarterly estimated tax computed with safe-harbour. Issue 1099s to your contractors at year-end.

Plays nicely with

Companies House (GB)

Live

Live deadline + company data sync.

HMRC MTD (GB)

Code complete

VAT calculation live, submission next.

FTA (AE)

Live

Correspondence templates included.

Revenue (IE)

Live

Correspondence templates included.

NRA (BG)

Live

Correspondence templates included.

IRS (US)

Live

1099/W-2 PDFs ready for FIRE/IRIS submission.

AccountsOS vs UK-only accounting software

CapabilityAccountsOSUK-only accounting software
Countries8 with real local rules1 (or USD-wrapped)
Currencies40+ with FX lockGBP only
Multiple entitiesSame login, isolated booksBuy a second subscription
AI tax knowledgeCountry-specificGeneric
US sales-tax nexus50 states + DCNot supported
UAE QFZPTracked, computedNot supported

Why founders pick this over the spreadsheet

Run multiple jurisdictions without paying for multiple accounting tools

Real local rules — not a USD wrapper around UK GAAP

Move country without switching accounting software

AI knows which country's rules to apply for each entity

Data isolated at the database level — no cross-entity leakage

Frequently Asked Questions

Which country is the most complete?

GB (UK) is the deepest — CT600 with marginal relief, VAT 9-box, MTD, S455, dividends, RTI/FPS, mileage and home office at HMRC rates, Companies House sync, self-assessment basis. We grew up UK-first and that's our expertise.

How real is the US support?

Real. We compute quarterly estimated tax with all three safe-harbour rules, track sales tax nexus across all 50 states + DC (with marketplace facilitator detection), and generate IRS-format 1099-NEC, 1099-MISC, W-2, 1096 and W-3 PDFs ready for FIRE/IRIS submission.

What does 'QFZP' mean for UAE users?

Qualifying Free Zone Person — a UAE entity in a free zone that meets specific conditions can pay 0% UAE corporate tax on qualifying income (instead of 9%). We track QFZP status per entity and apply the right rate.

Can I run a UK Ltd and a US LLC at the same time?

Yes. Add both as trading entities under one user. They each get their own currency, tax regime, year-end, books, reports and forms. Strict data isolation at the database level.

Will the chat know which country's rules apply?

Yes — chat is entity-aware. Ask a tax question while your active entity is the US LLC and you'll get US rules; switch to the UK Ltd and the same question gets UK rules.

What about VAT vs GST vs sales tax?

GB / IE / BG / AE use VAT, AU uses GST, US uses state-level sales tax with nexus rules. AccountsOS captures the right tax type per entity per country and computes / files accordingly.

Can I move country (e.g. UK to UAE)?

Yes — your old entity stays as historic books, you add a new entity in your new country. The AI carries memory of you across entities (so it knows your context).

Are correspondence letters localised?

Yes — engagement letters and authority-response letters are localised per country (HMRC tone for GB, Revenue for IE, FTA for AE, NRA for BG, IRS for US).

Explore more of AccountsOS

Multi-Currency Accounting

Trade in 40+ currencies. Books stay in your base currency. FX locked at date.

Multiple Trading Entities

Run multiple businesses without paying for multiple accounting subscriptions.

AI CFO Chat

Talk to your books. Ask anything. The AI does the work.

Corporation Tax

See your CT bill in real time. Generate the workpaper for filing.

VAT & Making Tax Digital

VAT 9-box always live. File when you're ready.

Ready to try International — 8 Countries, Real Local Tax?

Get started with AI-powered accounting for your UK limited company.

No per-country surcharge. All 8 countries included on every plan.

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