The cost of building an online store depends on its catalogue, features, integrations and administrative model. A useful budget separates initial development, recurring charges and transaction-related costs. Without that distinction, similar-looking proposals can lead to very different expenses after launch.

Divide the budget into three categories

Initial implementation may include discovery, structure, design, platform configuration, product import, integrations and testing. Identify who prepares descriptions and photographs. Entering product data is different from writing and validating it.

Recurring fixed costs may include the platform or hosting, domain renewal, applications, licences and maintenance. Some increase as feature or volume requirements grow. Check the provider's current plan and terms when purchasing.

Variable costs arise with orders: payment processing, delivery, packaging and relevant service fees. They are not all development expenses, but they affect the store's operating model.

Product data can change the workload significantly

Fifty simple products create different requirements from thousands of variants with compatibility rules. Import quality, category structure and data consistency matter. Request a sample migration using representative products before agreeing the final migration scope.

Missing photographs, duplicate descriptions and inconsistent identifiers can require editorial or operational work. Choosing a more expensive platform does not remove these problems. Include data preparation in the plan.

Specify each integration

For every ERP, shipping or invoicing connection, define the data, direction and frequency of transfer. A standard connector and an integration with a proprietary internal system are different projects.

Include error handling and testing. What happens if payment succeeds but the order fails to synchronise? A complete proposal should assign responsibility for diagnosis and recovery.

Build a transparent annual calculation

A practical model is: implementation + 12 × monthly fixed costs + annual charges + estimated variable costs. Write down the assumptions about order volume and value. Keep marketing expenditure separate so that building the store is not confused with acquiring customers.

As a purely illustrative example, implementation of €4,000, fixed costs of €150 per month and €100 in other annual services produce a first-year fixed total of €5,900. These figures are neither a Nightstar quote nor a market average. They exclude taxes, transaction fees, delivery and promotion. Replace them with actual supplier quotations.

Decide what can wait until after launch

Launch the functionality needed for reliable purchasing and administration. Nonessential customisation can wait; payment, inventory and delivery checks should not. Keep a separate improvement list and a clear trigger for implementing each item.

Frequently asked questions

Does using a template lower the price?

It can reduce design work, but product preparation, integrations and testing remain necessary. Check the licence and customisation limits.

Why do proposals vary so much?

They may include different amounts of content, different customisation levels and different post-launch responsibilities. Compare deliverables before comparing totals.

Use the online store launch checklist, then share requirements through the Nightstar contact page for a project-specific estimate.