Business bank account for CIS subcontractors: which setup works best?

CIS subcontractors don't need a special "CIS bank account". They need a clean business account that keeps gross invoices, net payments, deductions, receipts and tax money easy to track.

By Sam Morris

For most sole trader CIS subcontractors, Starling is the strongest first account to check. It's a proper UK bank, works well as a separate sole trader account, connects to major accounting software, and lets you deposit cash at the Post Office if you occasionally get paid that way.

For simple limited company CIS subcontractors, Mettle is hard to ignore because it includes FreeAgent, which can handle CIS deductions properly if set up correctly. Starling is the better pure bank account. Tide is useful if you want invoicing and admin tools. A high-street bank still makes sense if cash, cheques, lending or branch access matter.

The important bit: CIS isn't a company structure. It's a tax scheme. Your banking choice depends first on whether you're a sole trader, a limited company, or something else.

CIS isn't a business structure

The Construction Industry Scheme is a tax deduction system for construction work. It isn't a legal structure.

A CIS subcontractor might be:

• A sole trader
• A limited company
• A partnership
• Occasionally another structure

That matters because the banking answer changes.

A sole trader is the business. You may not always be legally forced to open a separate business bank account, but using one is usually the sensible move. It keeps job income, materials, tools, fuel and tax records away from your personal spending. It also makes life easier when your accountant is trying to work out what happened.

A limited company is different. The company is a separate legal person, so the company money should be in an account in the company name. If you're unsure why, read business bank account for a new limited company.

CIS adds another layer because the money you receive is often not the same as the invoice value. Registered subcontractors usually have 20% deducted from labour payments. Unregistered subcontractors can have 30% deducted. Subcontractors with gross payment status may be paid without deductions.

That's where sloppy banking becomes painful.

What CIS changes about your banking workflow

The bank itself doesn't usually "do CIS".

What the bank does is receive the payment. The accounting software then needs to explain why the payment is lower than the invoice.

For example, you might invoice a contractor for £1,000 of labour. If they deduct 20% under CIS, only £800 arrives in the bank. The missing £200 isn't a normal unpaid debt. It's tax deducted at source and paid to HMRC by the contractor.

Your banking and bookkeeping setup should make it easy to see:

• The gross invoice amount
• The net amount received
• The CIS deduction
• VAT, if relevant
• Materials and labour split, if relevant
• What still needs paying to HMRC
• What has already been deducted on your behalf

This is why accounting software matters more for CIS subcontractors than for many other small businesses. A good bank feed plus CIS-aware software can save a lot of year-end mess.

If you're a sole trader CIS subcontractor

A sole trader CIS subcontractor should usually have a separate account for work.

That doesn't mean you need the most expensive business banking package. It means you need a clean place for contractor payments, materials, tools, fuel, insurance and tax-related transactions.

If you're still deciding whether a separate account is necessary, read do sole traders need a business bank account?. If cost is the concern, also see free business bank accounts for sole traders.

For sole trader CIS subcontractors, the best first accounts to check are usually Starling, Mettle and Monzo Business Pro if you're willing to pay for integrations. Tide can work too, especially if you want invoicing and admin features in the app.

The big mistake is using your everyday personal current account and hoping the accountant can sort it out later. They can, but you may not enjoy the bill.

If you trade through a limited company

If your CIS work goes through a limited company, open the account in the company name.

The company should receive the contractor payments. The company should pay expenses. The company should keep its own records. Your salary, dividends, mileage and expenses then need to be handled properly.

For simple limited company subcontractors, Mettle is particularly strong because of the FreeAgent bundle. Starling is the cleaner bank account if you already use Xero, QuickBooks or paid FreeAgent through your accountant. Tide is useful if you want business admin tools built into the account.

If you're newly incorporated and still getting the basics sorted, start with business bank account for a new limited company.

What CIS subcontractors should look for

Accounting software that understands CIS

This is the most important feature.

FreeAgent can handle CIS deductions when payments are explained against CIS invoices or CIS income. It's especially useful if your accountant already works with it. QuickBooks also has CIS functionality, including settings for subcontractor deduction rates.

The bank account doesn't need a special CIS label. It needs a reliable bank feed into software that can handle the CIS entries properly.

Tax pots or spaces

CIS deductions help with tax, but they don't remove the need to manage tax.

Sole traders may still need to settle Self Assessment. Limited companies may need to offset CIS deductions against company tax liabilities. VAT-registered businesses still need to manage VAT. If you run payroll, PAYE and National Insurance can also matter.

A bank account with pots or spaces is useful because you can separate money for:

• VAT
• Corporation Tax
• Personal tax
• Fuel and materials
• Tools and insurance
• Wages or dividends

It isn't magic. But it stops everything sitting in one balance that looks more spendable than it really is.

Low everyday fees

CIS subcontractors don't usually need hundreds of transactions a month. But they do have regular payments: suppliers, fuel cards, accountant, insurance, HMRC, salary, dividends and sometimes subcontracted labour.

A 20p transfer fee doesn't sound like much. It matters more if the account isn't giving you enough value in return.

Receipt capture

Construction expenses are messy. Fuel, parking, tools, fixings, PPE, materials, phone bills, training, van costs. The account should make it easy to attach receipts or push transactions into accounting software.

Cash deposit options

Some CIS subcontractors never touch cash. Others still do smaller jobs where cash turns up.

If cash is regular, don't choose only by app design. Check cash deposit fees and limits. Starling lets business and sole trader customers deposit cash at the Post Office for 0.7%, with a £3 minimum. For heavy cash use, a high-street bank may still be better.

FSCS protection

The FSCS deposit protection limit is £120,000 per eligible depositor, per authorised firm.

Most small subcontractors won't hold more than that for long. But VAT money, tax reserves and materials deposits can build up. Know whether your account is with a bank, or whether there's an e-money or partner-bank structure behind it.

Best business accounts for CIS subcontractors

Provider	Best for	Main strength	Main catch
Starling	Sole trader CIS subcontractors	Proper UK bank, good app, accounting integrations	No free FreeAgent bundle
Mettle	Simple Ltd subcontractors using FreeAgent	FreeAgent included if conditions are met	Only one owner can access the account
Tide	Admin-heavy subcontractors	Invoicing and business tools	Free plan fees can add up
Monzo Business Pro	Subcontractors who like Monzo	Clean app and accounting integrations on paid plan	Integrations need Pro or Team
NatWest	Growing subcontractors wanting FreeAgent and a bank relationship	FreeAgent with a high-street bank account	More traditional banking process
High-street banks	Cash-heavy or lending-focused construction businesses	Branches, cash, cheques, lending	Slower and often less slick

1. Starling — best overall for sole trader CIS subcontractors

Starling is the easiest default recommendation for many sole trader CIS subcontractors.

It's a full UK bank, eligible deposits are FSCS-protected, and the app is clean. You can connect to major accounting software, create spaces for tax, and keep all work income separate from personal spending.

For a self-employed electrician, plumber, joiner, plasterer or site subcontractor who wants a proper account without much faff, Starling is strong.

It also works for limited companies that fit Starling's eligibility. If you're a one-person limited company and already use Xero, QuickBooks or FreeAgent through your accountant, Starling may be the better banking-led choice than Mettle.

The weakness is that Starling doesn't bundle FreeAgent for free. If that software saving matters, Mettle may be better.

Starling also charges for cash deposits. That's fine for occasional cash. It's less ideal if cash is a big part of the business.

2. Mettle — best for simple Ltd subcontractors using FreeAgent

Mettle is very strong for simple CIS subcontractors, especially limited company subcontractors who want FreeAgent.

Mettle is for sole traders and limited companies with up to two owners, although only one owner can access the account. FreeAgent is included if you make at least one transaction a month from the Mettle account.

That combination is the reason Mettle belongs near the top of this article.

For a single-director CIS limited company, Mettle plus FreeAgent can cover a lot of the real workflow: invoices, bank feed, expenses, CIS deductions, tax estimates and year-end records.

The catch is ownership and access. If you have a spouse as co-director and both of you need account access, Mettle may feel restrictive. If your company is growing, needs lending, or needs more traditional banking, NatWest or Starling may be a better route.

But for a simple one-person subcontractor company, Mettle is hard to ignore.

3. Tide — best for invoicing and admin tools

Tide can work well for subcontractors who want invoicing, expense capture and admin features inside the banking app.

That's useful if you want the bank account to feel more like a business dashboard. You can keep on top of invoices, cards, expenses and day-to-day admin without jumping between as many tools.

Tide business current accounts use ClearBank as the bank layer for eligible FSCS-protected deposits. Tide itself isn't the bank in the same direct way Starling is. That doesn't make it unusable, but it's worth understanding.

The main caution is cost. Tide's free plan can still have transaction, withdrawal and cash deposit fees. For a subcontractor with lots of small payments, those fees can chip away at the headline "free" account.

Tide is a good admin account. It isn't automatically the cheapest CIS account.

4. Monzo Business Pro — best if you want Monzo plus integrations

Monzo Business can suit subcontractors who like Monzo's app and want pots, a clean interface and easy spending visibility.

But the accounting integration trap matters. The useful integrations with Xero, FreeAgent, Sage and QuickBooks are on Monzo Business Pro or Team, not the basic free Lite plan.

That means Monzo can be good, but it isn't the obvious value winner for CIS subcontractors who are choosing mainly because of bookkeeping.

If you're happy paying for Pro and already like Monzo, it's worth considering. If you want the strongest no-monthly-fee CIS setup, Starling or Mettle will usually be more compelling.

5. NatWest — best FreeAgent-backed high-street route

NatWest is worth checking if you want FreeAgent but prefer a fuller high-street bank relationship.

NatWest business current account customers can access FreeAgent for free while they retain the account, with no monthly transaction requirement. That makes NatWest relevant for subcontractors who want accounting software included but don't want the more limited Mettle setup.

NatWest may also make more sense if you expect to need lending, an overdraft, business credit card facilities, branch services or a more traditional banking relationship.

The downside is that it may feel slower and more conventional than the app-first options. For a simple sole trader, it may be more than you need. For a growing construction limited company, it may be sensible.

6. High-street banks — best for cash-heavy construction businesses

App banks are convenient, but construction isn't always app-bank perfect.

If you handle regular cash, need to deposit cheques, want a business overdraft, finance vans or equipment, or build a longer-term lending relationship, Barclays, Lloyds, HSBC, NatWest or Santander may be worth checking.

They may charge more. They may be slower. The apps may be less enjoyable.

But if your real business need is cash handling or credit, the boring bank can be the right bank.

Bank vs EMI: why it matters

Not every account is structured the same way.

Starling is a UK bank. NatWest is a UK bank. Mettle is provided by NatWest. Eligible deposits are covered by FSCS up to £120,000 per eligible depositor, per authorised firm.

Tide is different. Tide is the platform, while eligible Tide Business Current Account deposits are held through ClearBank, which is the FSCS-protected bank layer. That's still protection, but the structure is less direct than Starling or NatWest.

For most CIS subcontractors, this isn't something to panic about. But if you're holding a lot of tax money, VAT, materials deposits or retained profits, it's worth knowing who actually holds the money.

Does Making Tax Digital apply to CIS subcontractors?

It depends on your structure.

If you're a sole trader, Making Tax Digital for Income Tax can apply if your qualifying income is over the threshold. The threshold is over £50,000 from 6 April 2026, dropping to over £30,000 from April 2027 and over £20,000 from April 2028.

If you trade through a limited company, MTD for Income Tax doesn't apply to the company. MTD for Corporation Tax has been shelved. VAT MTD can still apply if the company is VAT-registered.

CIS and MTD are separate things. But they both point to the same practical answer: keep clean digital records and don't mix business money with personal spending.

Our view

If you're a sole trader CIS subcontractor, start with Starling. It's clean, cheap for normal banking, FSCS-protected and works well with accounting software.

If you're a simple limited company subcontractor and FreeAgent matters, start with Mettle. The included FreeAgent access is a real advantage, especially for CIS handling. Just check the owner-access limitation before relying on it.

If you want invoicing and admin tools inside the account, Tide is worth a look. If you already like Monzo and are happy paying for Pro, Monzo Business can work. If you take cash regularly or expect to need lending, don't ignore high-street banks.

The worst option is running CIS payments through a messy personal account and trying to reconstruct gross payments, net receipts, deductions and expenses months later.

CIS already makes the paperwork more annoying. Your bank account shouldn't make it worse.

FAQ

Do CIS subcontractors need a business bank account?

Sole trader CIS subcontractors aren't always legally required to have a business bank account, but it's strongly recommended. Limited company subcontractors should use an account in the company name because the company is separate from the director.

What is the best business account for a sole trader CIS subcontractor?

Starling is the strongest first account to check for many sole trader CIS subcontractors. It's a UK bank, has a clean app, connects to accounting software and supports Post Office cash deposits.

What is the best business account for a limited company CIS subcontractor?

Mettle is very strong for simple limited company subcontractors because FreeAgent is included if the account activity condition is met. Starling is the better pure bank account if you already have accounting software.

Can I use my personal account for CIS payments?

A sole trader may be able to in some cases, but it's usually a bad idea. Most personal accounts restrict business use, and mixing CIS income with personal spending makes tax records harder. A limited company shouldn't use a director's personal account for company money.

Does FreeAgent handle CIS deductions?

Yes. FreeAgent has CIS support for subcontractors and can recognise CIS deductions when payments are explained correctly. This is one reason Mettle and NatWest are attractive for CIS subcontractors.

Does QuickBooks handle CIS deductions?

Yes. QuickBooks Online has CIS settings, including options for subcontractor deduction rates. It can be a good fit if your accountant uses QuickBooks.

Does Making Tax Digital apply to CIS subcontractors?

MTD for Income Tax can apply to sole trader CIS subcontractors if qualifying income is above the threshold. It doesn't apply to limited companies, although VAT MTD can apply if the company is VAT-registered.

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Sam Morris is the pen name of the founder of comparebusinessbanking.com.