InstantVAT

About us

Adsum is pioneering the tax AI space

Get your VAT refund in as little as 24 hours

Let's end the wait for refunds

Our InstantVAT product lets you put your cash to work faster without any changes to your businesses processes. No admin or paperwork is required and setup takes less than 5 minutes. Get your VAT refunds in as little as 24 hours.

Get started How it works

See what our users have to say

We've got 100s of testimonials from users across Trustpilot, QuickBooks and Xero. Take a look at how InstantVAT has helped them.

Go to Trustpilot

£80M

VAT refunds sped up with InstantVAT

1000+

days saved waiting for traditional refunds

BMF Servicing – Brandon Forsyth

"Product does exactly what it says, is really convenient and helps speed up the returns and inject cash flow back into the business..."

Brownie Things – Martins Strals

"Easy to onboard and quick to activate. Great service and a noticeable personalised approach to customers, makes me feel valued..."

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Sneyd’s Wonderfeeds – Ryan Sinclair

"Quick pay-out once HMRC had approved our vat return, would recommend, also very easy to set up. Fast and efficient service, very professional."

MUTE – Patrick Davin

"What we all need nowadays is simplicity and clarity in our day to day business dealings. Our first experience with Adsum has been great so far. Easy sign up..."

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Saunton Vineyard – Matthew Fleetham

"A game-changer. It’s very simple, hardly any paperwork. And you get access to your VAT refund straight away..."

Over £80M in VAT refunds processed for our customers

InstantVAT as offered by Xero to their customers

Our customers save on average 47 days per year with InstantVAT

InstantVAT as offered by QuickBooks to their customers

Join over 2000 UK businesses using InstantVAT every month

InstantVAT as offered by Tide to their customers

Getting started with InstantVAT is simple

How it works

Create your account, connect to HMRC, and start receiving your VAT refunds in as little as 24 hours. You or your accountant submit your return as usual - no paperwork, no process changes. The only difference? You get paid faster.

See the whole proccess

On average, InstantVAT users save 47 days of waiting for HMRC over the year

47 days

On average saved waiting for traditional refunds

2000+

Businesses receiving faster VAT refunds each month

£80m

Over £80 million of cashflow unlocked

1000+

Days saved waiting for traditional refunds (and counting)

Get started with InstantVAT ->

What is HMRCs standard process to pay my VAT refund?

After submitting your VAT return, HMRC verifies the return (1–5 business days), checks for outstanding tax (1 day), and may carry out further checks in about 10% of cases (delaying repayment and involving info requests about 30 days after submission). Once cleared, payment is made via BACS in 3–5 business days.

How does the InstantVAT process differ from HMRC’s?

Adsum speeds up the process by releasing your refund immediately after verification. We fast-track the remaining HMRC steps, so you get your cash in as little as 24 hours and always at least 3–5 business days faster than HMRC.

How do I know if my company is eligible for InstantVAT?

If your business is VAT registered, then you're pre-qualified for InstantVAT. There are no complex criteria or approval processes, and nothing that will affect your credit score.

Why do I need to link my HMRC account?

Linking your account lets our internal systems track your VAT submissions and refund amounts in real time. It means no extra admin for you and ensures your refund is paid as quickly as possible.