Why grant deadlines rarely match your tax year or VAT quarters

What to take away

Company accounting periods against the 6 April tax year

The 6 April to 5 April tax year is for individuals. A company uses its own accounting period, normally the twelve months in its accounts, and Corporation Tax applies to that period.

A grant window opening in February can fall in one period while the spend sits in another. Funders want costs matching their claim period, so management accounts usually bridge the gap. HMRC sets out what an accounting period for Corporation Tax covers.

Corporation Tax payment versus the CT600 deadline

Payment normally falls nine months and one day after the period ends. The Company Tax Return, form CT600 with accounts and computations, is due twelve months after the same date.

For a period ending 30 June, payment is due 1 April and the return 30 June the following year. Filing early, once the accounts are final, gives dated figures for a claim.

VAT quarters, reclaims and match funding

VAT quarters are set at registration, so two companies with the same year end can have different quarter ends. Your VAT Return is due one month and seven days after the period ends, and reclaims arrive after the spend.

VAT you cannot reclaim is a real project cost. VAT you can reclaim is a timing benefit. A budget assuming full recovery can be out by a fifth of the cost base if the project is partly exempt or on the flat rate scheme.

The small business grants costs and budget guide shows how a VAT bill can fall due before grant cash arrives.

Why grant claim windows rarely match your tax dates

Innovate UK runs competitions rather than a fixed annual cycle. Smart Grants has run in repeated rounds, announced per competition, so check the live page for the current window.

Innovate UK applicant guidance sets out eligibility, eligible cost categories and evidence, which differ from ordinary accounting headings.

Scottish Enterprise, Business Wales and Invest NI publish their own rules, so a project with sites in two nations can face two claim regimes. In England, GOV.UK Find a Grant lists government grants, while British Business Bank schemes such as Start Up Loans take rolling applications.

A ninety-day plan tests whether a round is feasible.

Illustration: two year ends, two cash gaps

Take a company with a December year end that wins a grant in March. The project runs April to March, claims are quarterly, and payment follows 60 days later. VAT quarters end in March, June, September and December.

The June VAT quarter and the first grant claim land together. VAT is paid in August, the cash arrives in September, leaving a two month hole for reserves or a facility.

A company with a 30 September year end has Corporation Tax due 1 July and the CT600 due 30 September. Its VAT quarters end in January, April, July and October.

A claim window opens 1 May and closes 30 June, paying 90 days after approval. Approval on 30 June puts cash around 28 September, only days before the year end.

Spend in May and June and the receipt fall in the same accounting period, so nothing needs splitting.

Building the one-page calendar

A reusable planning record keeps these dates together across several applications. Update it when a funder moves a deadline.

Common questions

Why do grant deadlines rarely match the tax year?

Companies use their own accounting period, while funders set separate claim windows.

Can I file the Company Tax Return early?

Yes, once the accounts are final, and dated figures help a claim.

Does a VAT quarter change how much grant I can claim?

Not the amount, only the timing, because reclaims arrive after the quarter.

Are Innovate UK rounds the same each year?

No, so check the live round before planning a bid.