How to Build an Ecommerce Website in 2026: 10 Steps to Your First Online Sale
From business model to payment gateway, shipping integration to legal pages: the steps to take when you build an ecommerce website, and the mistakes we see most often.
When a business decides to sell online, the first question is usually "Which platform should we use?" But if you want to know how to build an ecommerce website that still works for you a year from now, start with the business model, not the software. A platform chosen before you know who you are selling to, at what price and with what delivery time will start to hold you back within a few months.
Below we go through it in order, from business model and platform to payments, shipping, legal pages, product pages, first traffic and costs, flagging the usual mistakes along the way.
The legal and tax points are based on selling in Türkiye, where we are based, and are general information only. Rules differ by country, so confirm the current requirements with your accountant and the relevant official sources before you launch.
Step 1: Define your business model
An online store is a sales channel in its own right, not just a shop window. First, write down your answers to these questions:
- What are you selling? Stocked products, made-to-order products or digital goods? For made-to-order items such as furniture, lead times and size options come first; in textiles, it is sizes and colour variants.
- Who are you selling to? Consumers (B2C), or dealers and business buyers (B2B)? B2B selling brings its own needs: customer-specific prices, account balances and bulk ordering.
- Where are you selling? One country only, or are international markets on the roadmap? If you plan to sell abroad, understanding how cross-border ecommerce works from the start helps you choose a platform that can handle several languages and currencies.
- What is your margin? Don't set prices until you know what is left per product after shipping, payment fees, returns and advertising.
These answers largely decide which platform will suit you in the next step.
Step 2: Choose your ecommerce platform
There are four basic routes to selling online. None of them is "the best" on its own; the right one depends on the size of your business and the way you work.
| Option | Who it suits | Upside | Watch out for |
|---|---|---|---|
| Marketplace (Amazon, eBay, Etsy; in Türkiye, Trendyol or Hepsiburada) | Sellers who want to start fast and test demand | Built-in traffic, no setup needed | Commission, price competition, customer data stays with the platform |
| Hosted ecommerce platform (SaaS) | Small and mid-sized businesses with a standard product structure | Quick launch, the provider handles maintenance | Monthly subscription, customisation limits, hard to migrate away |
| Open source (WooCommerce, OpenCart, etc.) | Businesses with access to technical support that want flexibility | No licence fee, large plugin ecosystem | Updates, security and speed are your responsibility |
| Custom software | Businesses with sector-specific processes, a dealer network or high volume | Fits your workflow exactly and scales with you | Higher upfront investment and longer planning |
Many businesses start on a marketplace and move to their own site once demand is proven. Torn between a ready-made package and custom development? We compare them in website builder vs WordPress vs custom.
Step 3: Domain, hosting and security
Pick a short, easy-to-type domain that reflects your brand. If you are not on a hosted platform, hosting directly affects speed, so choose a server that can absorb traffic spikes during campaigns.
An SSL certificate is no longer optional: on a site that takes payments, a security warning in the address bar is enough to make a visitor abandon the basket. Regular backups, strong admin passwords and up-to-date software cover the basics of security.
Step 4: Payment gateway and card payments
To take card payments, you either get a merchant account (often called a virtual POS) from your bank or work through a payment service provider. Banks usually take longer to approve; payment providers go live faster and accept several card types through one integration.
When comparing, look at:
- The fee per transaction, and the cost of offering instalments
- How many days it takes for the money to reach your account
- 3D Secure support and fraud prevention tools
- Whether refunds can be issued easily from the dashboard
- Whether there is a ready-made integration with your ecommerce platform
Cash on delivery and bank transfer are still popular in some sectors and markets, Türkiye included. With cash on delivery, though, you have to budget for returns and orders that can't be delivered.
Step 5: Shipping integration and returns
Delivery is the most tangible part of a customer's experience with you. With courier integration, each order drops into the courier's system automatically and the tracking number reaches the customer by email or SMS. Manual shipping produces more errors as orders grow.
Bulky items such as furniture or white goods need freight or two-person delivery with assembly rather than a parcel service. Stating delivery times and regional costs clearly on the product page prevents surprises later.
Plan the returns process from day one too: which address does the item go back to, with which return code, and how many days until the refund? Making this information easy to find on the site builds trust.
Step 6: E-invoicing and legal requirements
Every online seller has obligations around invoicing, contracts and personal data. Below are the main headings if you sell in Türkiye. Most countries have their own version of each item, so treat this as a list of topics to check, not legal advice for your market.
- E-invoice and e-archive invoice: In Türkiye, the obligation to issue electronic invoices for online sales, and the thresholds for switching to it, are updated from time to time. Check the current rules on the Turkish Revenue Administration website (mostly in Turkish) and with your accountant. Connecting your platform to an e-invoice provider so that an invoice is issued automatically with every order saves a lot of manual work.
- Pre-contract information and distance selling contract: Customers must see and accept these documents before completing payment. The right of withdrawal and its exceptions, such as products made to the customer's specification, must be stated clearly. The current legislation is published by the Turkish Ministry of Trade (Turkish-language site).
- KVKK, Türkiye's data protection law: Registration, order and newsletter forms need a privacy notice, a separate consent box where explicit consent is required, and a cookie policy. If you sell to customers in the EU or UK, GDPR applies as well.
- Company details: Your registered business name, address, tax details and contact channels should be visible on the site.
Step 7: Build product pages that sell
Visitors can't touch or try the product, so the product page has to make up for it. A good product page includes:
- High-quality, consistent photos: A white-background shot, several angles, close-ups and ideally a lifestyle shot. Phone photos under mixed lighting make the store look less professional.
- Clear variant selection: Colour, size and fabric options on one page, with the price updating instantly.
- Original descriptions: Copied catalogue text tells the customer nothing and won't set you apart in search. Describe in your own words who the product is for, its dimensions, materials and care.
- Delivery and returns information: The answers to "How long will it take?" and "What if I don't like it?" belong near the add-to-basket button.
- Reviews and trust signals: Genuine customer reviews, secure payment logos and a contact channel people can actually reach.
On the Mobilya Depom online furniture store, the part that took the most work was presenting products with many variants in a way shoppers could follow without confusion.
Step 8: Getting traffic for your first sales
Visitors don't simply appear at launch. First sales usually come from several channels together:
- Google Ads and Shopping ads: The fastest way to reach people who are searching for your product. A properly prepared product feed is critical here. Our Google Ads guide covers the basics.
- SEO: Optimising category and product pages for the terms people search takes time, but it brings lasting traffic you don't pay for per click. We cover the fundamentals in What is SEO?
- Social media: Instagram and Pinterest work well as discovery channels, especially for visual products.
- Your existing customers: If you have a shop or a dealer network, telling them about the site is the cheapest place to start.
- Email list: Collect newsletter sign-ups from day one; repeat sales come from here.
How much does it cost to build an ecommerce website?
The total depends on the platform, product count and integrations, so a single figure would mislead. Budget for these items separately:
| Item | One-off or recurring? | Note |
|---|---|---|
| Design and setup, or software development | One-off | A wide range, from a ready-made theme to custom software |
| Subscription or hosting | Monthly or yearly | Subscription on a hosted platform, a server for open source |
| Domain and SSL | Yearly | Usually a small item |
| Payment fees | Every sale | Instalment options increase the cost |
| Shipping | Every order | Bulky products need a separate calculation |
| E-invoicing provider | Recurring | Usually priced per document or per package |
| Product photography and content | Heavy at the start, then ongoing | The most underestimated item |
| Advertising and marketing | Monthly | Carries most of the sales in the first months |
| Maintenance, updates and support | Monthly or yearly | Not to be skipped, for security and speed |
Setup quotes mostly differ on three things: original or template design, the number of integrations and who prepares the product content. Make sure the quotes you compare price all three on the same scope.
Common ecommerce mistakes
- Choosing a platform on starting price alone. Cheap at the start can mean expensive once you need integrations or a migration.
- Not testing on mobile. Many visitors arrive on a phone; an awkward mobile checkout loses sales.
- Revealing shipping costs at the last step. A classic cause of basket abandonment.
- Copying product descriptions. You lose both trust and search visibility.
- No advertising budget. "We built it, so orders will come" is the most common disappointment.
- Launching and forgetting. Broken links, slow pages and outdated plugins quietly erode sales.
What to track in the first months after launch
Once the site is live, the real learning starts. A few numbers checked weekly show where to spend money and effort:
- Traffic sources: Are sales coming from ads, search or social media?
- Add-to-basket and checkout: If visitors drop out at payment, the cause is usually the shipping cost, payment options or trust.
- Products that get views but don't sell: Review the price, photos or description.
- Customer questions: A question that keeps coming back means the answer is missing from the product page.
From then on, decisions rest on real behaviour rather than guesswork.
How to build an ecommerce website that is ready to launch: final checklist
- Have you placed a test order and checked payment, invoicing, shipping notifications and a return from start to finish?
- Are the legal pages and consent boxes visible at checkout?
- Does the site load quickly on a phone?
- Are Google Analytics and Search Console set up?
- Do product pages have their title and meta description tags filled in?
- Are your contact details and WhatsApp line easy to find?
You can check part of this list yourself. For the technical items such as speed, security, SEO and mobile usability, our free Site X-Ray website audit runs more than 40 checks in about a minute. If you would like to plan the whole process together, from platform choice to payment and shipping integration, see Fietto Creative's ecommerce development service or ask us for a quote.
Frequently asked questions
Can I start an online store as a sole trader?
In most countries, yes. What matters is that you are registered for tax, can issue invoices properly and have the documents a payment provider asks for. Rules on business structure vary by country, so decide on the legal form with your accountant.
How long does it take to build an ecommerce website?
With a hosted platform you can be live within a few days. With a custom design, integrations and product content, the timeline is usually measured in weeks, and product photos and descriptions tend to take the longest.
If I already sell on marketplaces, do I need my own website?
Marketplaces bring quick sales, but the customer data and much of the brand perception stay with the platform. Your own site keeps repeat customers and margin with you, which is why most businesses run both.
What documents do I need to get a payment gateway?
Banks and payment providers usually ask for proof of business and tax registration, details of the authorised signatory and live legal pages on your website. The exact list depends on the provider and the country, so get the current requirements directly from them before applying.
What legal pages does an ecommerce website need?
Typically terms of sale, pre-contract information, returns and cancellation terms, a privacy notice, a cookie policy and your company contact details. Requirements differ by country, so have the texts checked by a lawyer instead of copying a template.
