A Professional’s Guide to VAT Registration for Limited Companies (2026/27)

When advising limited companies on their tax obligations, practitioners must meticulously track Value Added Tax (VAT) registration thresholds. Section 3(1) of the Value Added Tax Act 1994 (VATA 1994) establishes that a person is a taxable person for the purposes of the Act while they are, or are required to be, registered under the Act.

Registration for VAT is mandatory, not discretionary, once a business breaches the statutory thresholds. The First-tier Tribunal recently reaffirmed this strict application in Chelsea Cloisters Management Limited v The Commissioners for HMRC.

“The obligation to register is mandatory pursuant to paragraph 1(1) of Schedule 1 to VATA 1994 and compulsory registration is the enforcement of that obligation.”

For the 2026/27 tax year, the government has maintained the mandatory VAT registration threshold at £90,000.  Paragraph 1 of Schedule 1 to VATA 1994 dictates that a limited company becomes liable to register for VAT if it meets either of the following two tests:

1. The Historic (Backward-Looking) Test: At the end of any month, the value of the company’s taxable supplies in the period of one year then ending has exceeded £90,000.
2. The Future (Forward-Looking) Test: At any time, there are reasonable grounds for believing that the value of the company’s taxable supplies in the period of 30 days then beginning will exceed £90,000.

Practitioners must ensure clients distinguish between taxable supplies and exempt supplies; only taxable supplies (including zero-rated supplies) count towards this £90,000 limit.

Notification Deadlines and Effective Dates

Once a limited company breaches a threshold, strict statutory deadlines apply for notifying HMRC. Under Paragraph 5 of Schedule 1 to VATA 1994, a company that becomes liable to register under the historic 12-month test must notify HMRC within 30 days of the end of the relevant month.

HMRC will then register the company with effect from the end of the month following the relevant month, or from an earlier agreed date.  For businesses triggering the forward-looking 30-day test, HMRC registers the company with effect from the beginning of that 30-day period.

Voluntary Registration (VATA 1994, Sch 1, para 9)

Companies with a taxable turnover below the £90,000 threshold can proactively elect to register for VAT. Paragraph 9 of Schedule 1 to VATA 1994 entitles a person to voluntary registration if they satisfy HMRC that they make taxable supplies or carry on a business and intend to make such supplies.

Voluntary registration allows limited companies to recover input tax on their business expenses, which is particularly advantageous for start-ups incurring significant initial capital expenditure or businesses dealing primarily in zero-rated goods.

Table: Key 2026/27 VAT Thresholds & Schemes

The Flat Rate Scheme for Small Companies

For eligible limited companies seeking to simplify their administrative burden, the VAT Flat Rate Scheme offers an alternative accounting method. Under section 55L of the Value Added Tax Regulations 1995, a taxable person is eligible to join the scheme if there are reasonable grounds to believe their value of taxable supplies in the coming year will not exceed £150,000 (excluding VAT).

Instead of tracking the VAT on every individual purchase and sale, the company applies a fixed flat-rate percentage to its gross turnover to calculate the VAT due to HMRC.

Consider researching the specific input tax recovery rules for pre-registration expenses under Regulation 111 of the Value Added Tax Regulations 1995 to optimise cash flow for newly registered limited companies.