How to Deploy a .NET App on AWS for UK Small Businesses (2026 Guide)

AWS powers a significant portion of the UK's digital infrastructure — from fintech startups in London to e-commerce businesses in Manchester. Yet for many small businesses, getting a .NET application from a developer's laptop to a production AWS environment remains unnecessarily complicated.

This guide cuts through the noise. By the end, you will have a clear picture of which AWS services to use, what it will cost, and what UK-specific considerations (primarily GDPR) you need to address.

Choosing Your AWS Region

UK businesses have two primary options: eu-west-2 (London) and eu-west-1 (Ireland). For GDPR compliance and data residency requirements, eu-west-2 is the correct choice — your data stays in the UK. Ireland is marginally cheaper but introduces cross-border data transfer considerations that add compliance overhead.

Three Deployment Options, Ranked by Simplicity

1. Elastic Beanstalk (Recommended for Most)

Elastic Beanstalk is AWS's platform-as-a-service layer. You provide a .NET deployment package, and AWS handles the underlying EC2 instances, load balancing, and auto-scaling. For a small business running a standard ASP.NET Core application, this is the right starting point.

Typical monthly cost for a production Elastic Beanstalk environment in eu-west-2: £35–£80/month (t3.small or t3.medium instance, RDS db.t3.micro for the database, standard data transfer).

2. ECS with Fargate (Recommended for Containerised Apps)

If your team uses Docker — which Nordync recommends for all new projects — ECS Fargate removes the need to manage servers entirely. You define your container, set CPU and memory limits, and Fargate runs it. Costs are slightly higher than Elastic Beanstalk but operational overhead is lower.

3. EC2 (Only If You Have Specific Requirements)

Raw EC2 gives maximum control but requires manual patching, monitoring, and scaling configuration. For a small business without a dedicated DevOps engineer, this creates unnecessary risk. Avoid unless you have specific licensing or compliance requirements that demand it.

GDPR Considerations for UK Businesses

Post-Brexit, the UK operates under UK GDPR rather than EU GDPR, but the practical requirements are nearly identical. Key AWS-specific actions:

• Enable AWS CloudTrail for audit logging of all API calls
• Use AWS KMS (Key Management Service) to encrypt data at rest
• Configure VPC to ensure your application servers are not publicly accessible
• Review your Data Processing Agreement with AWS (available in the AWS console)

Realistic Cost Breakdown

A production-ready .NET application on AWS for a UK small business typically costs between £40–£120/month depending on traffic and data requirements. The AWS Free Tier covers 12 months of limited usage, which is useful for development and staging environments.

The most common mistake small businesses make is running development and production on the same infrastructure — which both inflates costs and creates risk. Use separate AWS accounts or at minimum separate VPCs.

Next Steps

If you are evaluating cloud migration for your business, Nordync offers AWS consulting from £400. We assess your current infrastructure, recommend the right AWS architecture, and handle the deployment — with full documentation so your team can manage it going forward.