CIS Returns & Refunds | Barton Accountancy

CIS

Construction Industry Scheme, handled.

If you work in construction and you hire subcontractors, you're a CIS contractor and you have to file monthly CIS300 returns to HMRC. If you're a subcontractor yourself, tax will be deducted at source from your payments — and the only way to get it back is through your accountant.

We handle both sides. For contractors, we verify subcontractors, file monthly returns, and keep you compliant. For subcontractors, we reclaim your CIS deductions as quickly as HMRC allows — usually within days for limited companies through monthly PAYE.

What's included

Full CIS service.

Everything is included in your fixed monthly fee. No extras, no surprises.

Monthly CIS returns

CIS300 filed to HMRC by the 19th of every month.

Subcontractor verification

Every new subbie verified with HMRC before you pay them.

CIS refunds (limited cos)

Reclaim CIS deductions monthly through PAYE — get your money back in weeks, not years.

CIS refunds (sole traders)

Claim back through self assessment — we make sure every deduction is accounted for.

Payment & deduction statements

Issued to subbies every month, as legally required.

CIS registration

Full registration with HMRC as contractor or subcontractor, done in days.

Sound familiar?

Most businesses don't have an accountant.
They have a filing service.

If any of these ring true, you're not getting what you should be.

01

You only hear from them at year-end

No check-ins, no planning, no conversation. Just a bill and a set of accounts you don't fully understand.

02

You're never sure where you stand

Your numbers are months out of date. You're making decisions based on gut feel, not real figures.

03

Surprise invoices keep landing

An email here, a phone call there — and suddenly your bill is twice what you expected. No one told you.

Common questions

Things people ask us.

What is CIS?

The Construction Industry Scheme is HMRC's way of collecting tax from subcontractors in construction. Contractors must deduct either 20% or 30% from subcontractor payments and send it to HMRC. Subcontractors get the tax back via their annual return or (for limited companies) monthly through PAYE.

How long does a CIS refund take?

For limited company subcontractors: we reclaim it each month through your PAYE submission, so you get it back within weeks of year end — sometimes sooner if HMRC processes quickly. For sole traders: it's claimed via your self assessment, so refunds come after your January filing.

Do I have to be CIS registered to work in construction?

If you're doing construction work for a contractor, no, but the consequence of not registering is that you'll be deducted at the higher 30% rate instead of 20%. Registering is free and takes minutes through HMRC.

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