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alto.

ACCA accountants for UK creative and marketing agencies. Specialists in agency cash flow, retainer math, and director tax planning.

Alto Accounting Ltd86–90 Paul Street
London EC2A 4NE
Company No. 15343741
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Home/Resources/VAT registration calculator
Free threshold tool

Check when you’ll hit the £90k VAT threshold.

Project your registration date, compare Standard VAT against Flat Rate, and see how much to set aside each month for quarterly returns. Built for UK agencies.

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2026/27 thresholds · instant results
Standard vs Flat Rate side-by-side
2,100+ calculations completed
VAT£90,000 rolling 12-month threshold
£90,000Q1Q2Q3Q4£60k!
Threshold projection
What it tells you

Three answers in under three minutes

When you’ll cross the threshold, which scheme costs less, and how much to reserve every month for the quarterly return.

Threshold Projection

See when you'll hit the £90k threshold based on your growth rate

01

Scheme Comparison

Compare Standard VAT vs Flat Rate to find which saves you more

02

Cash Flow Planning

Know how much to set aside monthly for quarterly VAT payments

03

TL;DR

  • VAT threshold is £90,000 from April 2024 (30 days to register)
  • Flat Rate Scheme: simpler admin, fixed percentage (10-16.5%) (No VAT reclaim)
  • Standard VAT: charge 20%, reclaim VAT on purchases (More admin)
  • Limited cost traders pay 16.5% flat rate (2% goods test) (Less attractive)

Built by Alto Accounting — ACCA Chartered Accountants specialising in UK agencies

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On the desk

Understanding VAT Registration and Schemes

  • 1Registration Threshold and Timing. The £90,000 VAT registration threshold (from April 2024) is based on taxable turnover in any rolling 12-month period, not calendar or financial year. This means you must continuously monitor your last 12 months of sales. If you exceed £90,000, you must notify HMRC within 30 days and register for VAT. Your effective registration date will be the end of the month after you crossed the threshold. Missing this deadline triggers penalties. Conversely, you can deregister if turnover falls below £88,000, recovering your VAT registration threshold. Monitor your turnover monthly using your accounting software's rolling 12-month reports to avoid surprises.
  • 2Standard VAT vs Flat Rate Scheme. Standard VAT means you charge 20% VAT on your sales (output VAT), reclaim VAT on your business purchases (input VAT), and pay the difference to HMRC quarterly. This works well if you have significant VAT-able expenses like software subscriptions, equipment, subcontractors, or office costs. Flat Rate Scheme lets you pay a fixed percentage (typically 10-14.5% for agencies, plus 1% discount in year one) of your gross turnover including VAT, but you cannot reclaim VAT on purchases except capital assets over £2,000. Flat Rate is simpler administratively but only saves money if your VAT-able expenses are low. Calculate both scenarios with your actual figures before choosing.
  • 3Limited Cost Trader Rules. HMRC introduced limited cost trader rules to prevent service businesses with minimal goods purchases from benefiting too much from Flat Rate Scheme. You're a limited cost trader if your VAT-inclusive expenditure on goods is either less than 2% of turnover OR under £1,000 per year (whichever is higher). Limited cost traders must pay 16.5% flat rate regardless of business category, making Flat Rate significantly less attractive. Software subscriptions, services, and subcontractors don't count as goods. Most agencies are limited cost traders because they primarily buy services, not physical goods. This makes Standard VAT usually more cost-effective for agencies.
  • 4Cash Flow and Admin Impact. VAT significantly affects cash flow because you must pay HMRC one month and seven days after each quarter ends, regardless of whether clients have paid you. If you invoice £10,000 including £2,000 VAT with 30-day payment terms at quarter-end, you must pay HMRC the £2,000 before the client pays you,creating a cash flow gap. Mitigate this by: setting aside 20% of all income immediately for VAT, negotiating tighter payment terms, using the Cash Accounting Scheme if eligible (turnover under £1.35m), or maintaining a separate VAT bank account. Administrative burden increases with VAT: quarterly returns, digital records under Making Tax Digital, potential HMRC inspections. Budget 2-4 hours quarterly for VAT compliance or engage an accountant.
The basics

Understanding VAT for agencies

Two questions every agency founder needs to answer: when to register, and which scheme to register on.

When to register

Turnover crosses £90k in any rolling 12 months, you expect to exceed it in the next 30 days, or you choose to register voluntarily.

01

Choosing a scheme

Standard VAT suits agencies with significant VAT-able expenses to reclaim. Flat Rate is simpler admin but rarely cheaper for service businesses.

02

Cash flow discipline

Set aside the VAT element of every invoice. The quarterly bill arrives whether or not your clients have paid.

03
Common questions

Frequently asked questions

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Need a hand?

VAT registration, returns, scheme choice.

Our team handles the registration, files quarterly returns under Making Tax Digital, and makes sure you’re on the scheme that costs least for your agency.

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