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UK VAT Refund Calculator (2026)

Calculate the input VAT you can reclaim on UK business purchases. For VAT-registered businesses and sole traders — understand exactly what you can and cannot reclaim from HMRC.

✓ Input tax guidance
✓ HMRC evidence rules
✓ Sole trader friendly
✓ Free forever
UK VAT Calculator
🛡 HMRC 2026
£

⏱ Enter any amount to calculate VAT instantly using HMRC 2026 rates

Custom: 20%
Net (excl. VAT)£0.00
VAT (20%)£0.00
Final Price (incl. VAT)£0.00

What is VAT Input Tax and Who Can Reclaim It?

When a VAT-registered UK business buys goods or services for business use, the VAT it pays on those purchases is called input tax. VAT-registered businesses can reclaim this input tax from HMRC, effectively meaning they do not bear the cost of VAT on their business purchases.

This is one of the key benefits of VAT registration — even if you are below the £90,000 compulsory registration threshold, voluntary registration allows you to reclaim VAT on business costs, which can be significant for businesses with high expenses.

How VAT Reclaiming Works

On your quarterly (or monthly) VAT return, you report both the VAT you have charged customers (output tax) and the VAT you have paid on business purchases (input tax). HMRC calculates the difference:

VAT to Pay / Reclaim

Net VAT = Output tax − Input tax

Positive = pay HMRC · Negative = HMRC refunds you

Extract VAT from a receipt

VAT = Gross ÷ 1.20 × 0.20

Or simply: Gross ÷ 6 = VAT amount

💷 Worked Example — UK Freelancer Quarterly VAT Return

VAT charged to clients (output tax)£3,200.00
VAT on office rent (input tax)£400.00
VAT on software subscriptions (input tax)£180.00
VAT on equipment purchase (input tax)£620.00
Total input tax to reclaim£1,200.00
Net VAT payment to HMRC£2,000.00

What Business Purchases Can You Reclaim VAT On?

You can generally reclaim VAT on goods and services purchased exclusively or primarily for business use:

What You Cannot Reclaim VAT On

HMRC specifically blocks input tax reclaims on certain items:

VAT Evidence Requirements — What HMRC Needs

To reclaim input VAT, you must hold valid evidence. The requirements depend on the invoice amount:

You cannot reclaim VAT without the appropriate evidence. HMRC may disallow claims without proper documentation during a VAT inspection.

Making Tax Digital: HMRC requires VAT-registered businesses to keep digital records and submit returns using MTD-compatible software. Your input tax records must be kept digitally. Source: HMRC MTD for VAT (GOV.UK)

Frequently Asked Questions — VAT Refund UK

How long does HMRC take to refund VAT?
HMRC aims to process VAT refunds within 30 days of receiving your VAT return. If you submit returns online (as required under Making Tax Digital), refunds are typically processed faster — often within 10 working days. HMRC may contact you for additional information before processing large refunds.
Can I reclaim VAT from before I registered?
Yes — HMRC allows you to reclaim VAT on certain pre-registration purchases. You can reclaim VAT on goods purchased up to 4 years before registration (if still held at registration), and VAT on services purchased up to 6 months before registration. The purchases must be for business use.
What happens if I overclaim VAT?
Overclaiming input VAT — whether deliberately or by mistake — can result in HMRC penalties and interest. If you realise you have overclaimed, you should correct it on your next VAT return (for errors under £10,000) or notify HMRC directly for larger errors.
Can sole traders reclaim VAT?
Yes — if you are a VAT-registered sole trader or freelancer, you can reclaim VAT on business purchases in the same way as any other VAT-registered business. You need to be VAT-registered (turnover over £90,000 or voluntary registration) and hold valid VAT receipts or invoices.