Value-added tax (VAT) is a consumption tax applied to goods and services at each stage where value is added, from production to distribution. More than 170 countries use VAT, including the United Kingdom. Unlike a sales tax, which is collected only at the final sale to the end customer, VAT is collected throughout the supply chain.

Businesses in the UK need to register for VAT if their turnover exceeds £90,000 in any rolling 12-month period, or if they expect to exceed that threshold. Registration before that threshold is optional but can allow businesses to reclaim some VAT costs. Whether you're launching a startup or managing the day-to-day operations of a small business, understanding VAT is important. Below, we cover what VAT is, how it works, and what it means for your business.

What's in this article?

• How does VAT impact small businesses?
  
• What are the different VAT schemes available?
  
• How to register for VAT: A step-by-step guide
  
• How to prepare and submit your VAT return
  
• Tips for handling VAT inspections and audits
  
• Should a small business voluntarily register for VAT?
  
• How Stripe Tax can help
  

How does VAT impact small businesses?

UK companies must register for VAT once their threshold exceeds £90,000 in any rolling 12-month period or if they expect to cross that threshold within 30 days. For small businesses, VAT can impact everything from cash flow and pricing to day-to-day operations. Here's how VAT affects businesses:

• Businesses must charge VAT on their sales invoices and then pay His Majesty's Revenue & Customs (HMRC), sometimes before receiving payment from the customer. Small businesses with tight margins or long payment terms might need to plan to cover a gap in cash flow.

• Businesses must keep detailed records of all sales and purchases, file regular VAT returns, and stay informed of any changes in tax rules. This can be a lot to handle for a small team, and some businesses need to use accounting software or hire outside help.

• Small businesses with annual taxable turnovers below a certain threshold can choose whether or not to register for VAT. Additionally, companies with a taxable income that falls below £88,000 can choose to deregister. This can impact pricing strategy and overall financials. Adding VAT to prices can make goods or services more expensive for customers and negatively affect sales. But VAT-registered businesses can reclaim VAT on business expenses, which can help balance some costs.

Although VAT registration is mandatory after £90,000, businesses below that amount can choose to register for VAT voluntarily. This allows businesses to reclaim the VAT paid on early business expenses and equipment, although this also requires charging VAT to customers and keeping formal VAT accounting records

What are the different VAT schemes available?

There are several VAT schemes available that can help small businesses manage their VAT obligations more effectively, depending on their size and business type. Here's a breakdown of the most common VAT schemes:

• Standard VAT: This is the default for most businesses. Businesses pay VAT on their sales and reclaim VAT on their purchases based on the invoice date, regardless of whether they've been paid or paid their suppliers.

• Flat Rate Scheme: This is designed for small businesses with a turnover of up to £150,000. Instead of calculating VAT on every transaction, they pay a fixed percentage of their gross turnover (this percentage varies by industry). While companies can't reclaim VAT on purchases, except for certain capital assets, this scheme simplifies the process and reduces paperwork.

• Cash Accounting Scheme: With the Cash Accounting Scheme, businesses pay VAT only when they receive payment from their customers and reclaim VAT when they pay their suppliers. This helps avoid the issue of paying VAT before receiving payment and makes it easier to manage cash flow.

• Annual Accounting Scheme: With the Annual Accounting Scheme, businesses submit just one VAT return per year, instead of every quarter. They make one advance payment based on their estimated annual VAT liability, and any differences are adjusted at the end of the year. This scheme can help businesses with budgeting and planning but might not suit those with fluctuating turnovers.

• Margin scheme: Under a margin scheme, VAT is calculated on the difference between the purchase price and the selling price (the margin) rather than on the full selling price. This can reduce the VAT payable substantially but requires strict record-keeping.

• Retail schemes: Retail schemes simplify the VAT calculation process. There are several types of retail schemes, including the Point of Sale Scheme, Apportionment Scheme, and Direct Calculation Scheme. Each is designed to suit different types of retail businesses. These schemes allow companies to calculate VAT once rather than track VAT for each individual sale.

How to register for VAT: A step-by-step guide

Here’s how to register for VAT.

1. Check if you need to register

First, determine if you need to register for VAT. In the UK, registration is mandatory if your business's taxable turnover over the past 12 months exceeds £90,000 or is expected to exceed it in the next 30 days.

Note that VAT-exempt goods and services, such as financial services, education, and healthcare, sit outside the VAT system entirely. Businesses selling strictly exempt items do not register for VAT and cannot reclaim input VAT paid on their business expenses, unlike zero-rated goods, which are technically taxable at 0% and still allow VAT reclaims. Even if your turnover is below the £90,000 threshold, registering voluntarily allows you to reclaim VAT on startup costs and equipment while boosting credibility with B2B clients.

2. Gather necessary information

Before you begin the registration process, collect all your business details in one place. The required information can differ depending on your business structure (e.g., sole trader, partnership, limited company), but you’ll need the following for any business structure:

• Bank account details

• Your annual turnover

• Your Unique Taxpayer Reference (UTR) or National Insurance number

• Your Self Assessment return

3. Choose the right VAT scheme

Decide which VAT scheme best suits your business. Options include the Flat Rate Scheme, Cash Accounting Scheme, and Annual Accounting Scheme. The right scheme will depend on your business type, size, and cash flow needs. Research each option so you can choose the one that is most beneficial for you.

4. Register online

The UK offers an online VAT registration process through the government's tax portal. Log on or create an account if you don't already have one. Complete the online VAT registration form by providing the required business and financial details.

5. Submit your application

Once you’ve filled in all the necessary information, review your completed application carefully for accuracy before submitting. You should receive a confirmation email that your application has been submitted.

6. Receive your VAT registration certificate

After your application is processed, you’ll receive a VAT registration certificate within 30 working days. The certificate will confirm your VAT registration number, registration date, and provide details on when to submit your first VAT return.

7. Implement VAT invoicing and recordkeeping

Once your business is registered, you must include your VAT number on all invoices and keep detailed records of all sales and purchases, including the VAT charged and paid. You must also keep proper records to file accurate VAT returns and avoid penalties. Your records should include:

• All sales and income (including the VAT charged)

• All purchases and expenses (including the VAT paid)

• VAT on any goods imported or exported

• Any adjustments, discounts, or refunds

To simplify this process, consider using accounting software that supports VAT compliance. Under current Making Tax Digital (MTD) requirements, companies are required to keep digital VAT records and file returns using HMRC-compatible accounting software.

8. File your first VAT return and make payments

After registration, you’ll need to start filing regular VAT returns (typically on a quarterly basis) and making VAT payments to the government. Submit these returns and payments on time to avoid fines and interest charges. Take note of the deadlines that your VAT registration certificate provides.

How to prepare and submit your VAT return

After you're registered, it's time to prepare and submit a VAT return. Here's how.

1. Calculate your VAT liability

The VAT return shows the amount of VAT you owe the tax authority (output VAT) minus the VAT you can reclaim on your business expenses (input VAT). The difference is your VAT liability. If your output VAT exceeds your input VAT, you’ll need to pay the difference to the tax authority. If your input VAT is higher, you might receive a refund.

2. Complete your VAT return form

Log on to the online portal of His Majesty's Revenue & Customs (HMRC) to access your UK VAT return form. The form needs to be filled out via MTD-compatible software, and typically requires that you provide the following information:

• Total sales and purchases (excluding VAT)

• Output VAT (the VAT you've charged on sales)

• Input VAT (the VAT you've paid on purchases)

• Any VAT adjustments or corrections

Follow the prompts on the form and fill in each section carefully. Make sure your figures match the records you've kept over the VAT period.

3. Check for errors

Double-check your VAT return for common mistakes such as transposed numbers, incorrect calculations, and missing information. Ensure you’re using the correct VAT rates and that all figures are accurate. Errors can lead to penalties or delays in processing your return.

4. Submit your VAT return online

Once you’ve completed and reviewed your VAT return, submit it online through the HMRC portal. After submission, you’ll receive confirmation that your VAT return has been successfully filed. Keep this notice for your records.

For standard quarterly VAT periods, the deadline to submit your return and make your payment to HMRC is one calendar month and seven days after the end of your accounting period.

5. Pay any VAT due

If you owe VAT, pay the amount by the due date. Most tax authorities provide several payment options such as direct debit, bank transfer, and credit card. Late payments can result in interest charges and penalties. If you are owed a refund, it will usually be automatically processed once your return is reviewed.

Tips for handling VAT inspections and audits

If you’re well prepared, handling VAT inspections and audits is a simple process. Here’s how to manage them:

• Stay organised and compliant: Keep thorough, accurate records of all sales, purchases, VAT returns, invoices, and receipts. Ensure that your VAT filings are accurate and submitted on time. Use accounting software if necessary to maintain organised, accessible records.

• Understand the scope of the audit: When notified of an upcoming VAT inspection or audit, find out what the tax authority intends to review. This could include specific periods, transaction types, or VAT reclamation practices. Gather the relevant documents and prepare accordingly.

• Review your records in advance: Before the audit, conduct an internal review of your VAT records to ensure everything is in order. Look for any discrepancies or errors that might need correcting, such as whether the correct VAT rate was applied or whether your invoice was filled in using compliant software. If you spot any issues, address them promptly and be ready to explain any anomalies.

• Cooperate and communicate clearly: During the audit, provide the requested information and documents promptly. Be transparent and clear in your communications. Respond to any requests for clarification or additional information.

• Seek professional help if needed: If you're unsure about any aspect of your VAT records or the audit process, consider consulting a tax adviser or accountant. They can help you prepare, provide expert guidance during the inspection, and assist in communicating with tax authorities.

• Address findings promptly: After the audit, the tax authority might provide feedback or findings, including any required adjustments or penalties. Address any issues promptly to avoid further complications, and implement any recommended changes to improve future VAT compliance.

Should a small business voluntarily register for VAT?

If your business's taxable turnover is below the £90,000 threshold, you are not legally required to register for VAT. However, opting to register voluntarily can offer strategic advantages depending on your customer base, expense structure, and growth plans.

When voluntary registration makes sense

Voluntary registration is often a smart financial move if your business meets one or more of the following criteria:

• You sell primarily to B2B clients: VAT-registered business customers can reclaim the VAT you charge them. Because output VAT is neutral for B2B buyers, adding 20% to your invoices won't make your prices less competitive.

• You have significant upfront capital expenses: If you are purchasing expensive equipment, software, stock, or professional services to launch your startup, registering allows you to reclaim the input VAT paid on those startup costs.

• You want to enhance brand credibility: Appearing VAT-registered can make a sole trader or early-stage startup look larger and more established, which helps when pitching to corporate clients or negotiating with major suppliers.

• You are approaching the £90,000 threshold: Registering early prevents any abrupt administrative scrambles and potential pricing adjustments that happen when you suddenly cross the threshold.

When voluntary registration doesn't make sense

Voluntary registration can backfire if your business model relies on direct consumer sales or low administrative overhead:

• You sell directly to consumers (B2C): End-consumers and non-registered small businesses cannot reclaim VAT. Adding 20% VAT directly increases prices for your customers or forces you to absorb the tax by narrowing your profit margins.

• Your ongoing expenses carry little to no VAT: If your primary costs are labour, salaries, or items purchased from non-registered suppliers, you won't have much input VAT to reclaim to offset the output VAT you collect.

• You want to keep admin simple: Registration requires compliance with Making Tax Digital (MTD) rules, maintaining digital accounting records, and submitting quarterly VAT returns to HMRC.

How Stripe Tax can help

Stripe Tax reduces the complexity of tax compliance so you can focus on growing your business. Start collecting taxes globally by adding a single line of code to your existing integration, clicking a button in the Dashboard or using our powerful API.

Stripe Tax helps you monitor your obligations and alerts you when you exceed a tax registration threshold based on your Stripe transactions. It can also register to collect tax on your behalf in the US, automate US filings in the Dashboard, and manage global filings through trusted partners. Stripe Tax automatically calculates and collects sales tax, VAT, and GST on:

• Digital goods and services in all US states and over 100 countries
  
• Physical goods in all US states and 42 countries
  

Stripe Tax can help you:

• Understand where to register and collect taxes: See where you need to collect taxes based on your Stripe transactions. After you register, switch on tax collection in a new state or country in seconds. You can start collecting taxes by adding one line of code to your existing Stripe integration, or add tax collection with the click of a button in the Stripe Dashboard.

• Register to pay tax: If you need to register for a sales tax in the US, let Stripe manage your tax registrations. You'll benefit from a simplified process that prefills application details – saving you time and simplifying compliance with local regulations. If you need help registering outside of the US, Stripe partners with Taxually to help you register with local tax authorities.

• Automatically collect tax: Stripe Tax calculates and collects the right amount of tax owed, no matter what or where you sell. It supports hundreds of products and services and is up-to-date on tax rules and rate changes.

• Simplify filing: Stripe Tax automates US filings in the Dashboard, powered by TaxJar. For global filings, Stripe Tax seamlessly integrates with filing partners, so your global filings are accurate and timely. Let our partners manage your filings so you can focus on growing your business. US tax filings can be automated in the Stripe Dashboard, powered by TaxJar.

Learn more about Stripe Tax or get started today.