Launching in a new market is only the first step. During the first year, you need to turn early sales into reliable financial information, meet local filing obligations and decide whether the market is ready for further investment.
This playbook gives you a practical framework for the first 12 months. It applies to UK Limited Companies, ecommerce brands, SaaS businesses, agencies and other SMEs selling internationally. Tax rules depend on your products, customers, fulfilment model and local activity, so treat the steps below as a control framework, not a substitute for checking requirements in each jurisdiction.
Days 1–30: Establish what “trading in the market” means
Start by documenting how the business operates in the new country. A website going live is not the only relevant event. Local inventory, a fulfilment location, employees, agents, contracts or customer transactions can change your tax and reporting obligations.
Create a one-page market map covering:
- Customers: their country, whether they are businesses or consumers, and the sales channel used.
- Products and services: what you supply, where the service is performed, and where goods are stored or dispatched.
- People and premises: employees, contractors, agents, offices and other local resources.
- Transaction responsibilities: who imports the goods, who is the seller of record, and whether a marketplace collects tax on particular sales.
- Money flows: sales currency, payment processor, bank account, refunds, fees, duties and intercompany payments.
This gives you a consistent record to revisit as operations change. It also helps prevent marketplace reports, bank deposits and your accounting records from being treated as if they were the same thing.
Set up a separate market or jurisdiction code in your bookkeeping system from the first transaction. Record sales, refunds, fees, fulfilment costs, tax collected, tax paid and currency conversion consistently. For UK companies, directors remain responsible for company records and filings even when they delegate accounting work. See the GOV.UK guidance on limited-company responsibilities.
Days 31–90: Turn compliance questions into assigned tasks
Build a local obligations register. For each country or relevant subnational jurisdiction, record:
| Control | What to record |
|---|---|
| Registration | Tax type, registration status, effective date and account reference |
| Filing | Return frequency, filing deadline, payment deadline and responsible owner |
| Transaction evidence | Required invoice, marketplace, customs and payment records |
| Scope | Goods, services, B2B, B2C, local stock, staff and other relevant activity |
| Change trigger | What operational change requires the position to be reviewed |
Do not assume that registering for one tax settles every other obligation. For example, obtaining an EIN in the United States does not by itself determine whether sales-tax registration is required in a particular state. The IRS EIN guidance explains when an EIN is needed and how international applicants can apply. State-level and local requirements still need to be checked separately.
Similarly, Canadian GST/HST obligations depend on the business’s activities and circumstances. The CRA’s non-resident registration guidance outlines factors relevant to non-resident businesses. For Australia, check the ATO’s guidance on GST and cross-border business transactions.
For EU sales, distinguish VAT registrations and filings in individual countries from schemes that can simplify certain cross-border reporting. The European Commission’s One Stop Shop information explains the OSS framework. It does not mean every local VAT obligation disappears, particularly where goods are held locally or the business makes other domestic supplies.
Make one person responsible for keeping the register current. Assign the task internally or include it in your ongoing compliance process. This reduces the risk of missing a filing because everyone assumed somebody else was handling it.
Months 3–6: Measure whether the market is working
Once you have several months of transactions, assess performance using market-specific data, not a blended company total. The purpose is to understand what the new market contributes after the costs and compliance work directly connected with serving it.
Use a simple contribution view:
Net sales − refunds and discounts − cost of goods or delivery − fulfilment and duties − payment fees − market-specific support and operating costs = market contribution
Track the figures that reveal whether the launch is gaining traction:
- Revenue and order volume by channel and customer type.
- Gross margin after returns, fulfilment and landed costs.
- Repeat purchases, subscription retention or customer churn, as relevant.
- Unpaid customer invoices and payment-provider settlement differences.
- Tax collected compared with amounts recorded as payable or remitted.
- Unreconciled transactions, missing evidence and filing exceptions.
This is not a substitute for company-level reporting. It is a way to understand the economics and control burden of the new market specifically.
Illustrative example, not a real client: A UK online retailer sees strong sales growth in a new country. Its marketplace dashboard looks positive, but the accounting records show that refunds, shipping charges and duty costs are recorded in different places. After mapping the data by transaction and market, the owner can see the contribution more clearly and identify which records are needed before the next filing. The lesson is not that growth is unprofitable; it is that incomplete data can hide both costs and compliance obligations.
If you sell through Shopify or Amazon, reconcile platform reports to bank receipts and bookkeeping records. A specialist ecommerce accountant in the UK may help structure ecommerce bookkeeping and Shopify accounting so that sales, fees, refunds and tax records can be followed through to filings. Amazon FBA accounting also needs to account for fulfilment, storage and marketplace settlement data rather than relying on bank deposits alone.
Months 7–9: Recheck your original assumptions
Expansion plans often change after launch. You may add a new fulfilment centre, hire local staff, start selling to business customers or enter an additional country. Each change can affect registration, reporting or accounting requirements.
Schedule a formal review of:
- Where you sell: Have you added countries, states, provinces or EU member states?
- Where stock sits: