Trade Accounts and Supplier Credit for UK Tradespeople — How They Work and How to Manage Them (2026)

The Two Types of Trade Account

Almost every merchant offers two flavours of account: a cash (or trade card) account and a credit account. They sound similar but they work very differently, and the right one depends on how established your business is and how disciplined you are with money.

Cash / Trade Card Account

A cash account — sometimes called a trade card account — means you pay at the point of sale, but you still get trade pricing instead of the public list price. You walk in, get your materials, pay by card or bank transfer, and walk out. Most merchants give you a physical or digital trade card that links to your account, applies your discount automatically and often earns loyalty points or rewards (Screwfix and Toolstation both run trade reward schemes, for example).

The big advantages: there's no credit check, you can usually set it up the same day — sometimes in five minutes online — and there's no monthly bill hanging over you. You only ever spend money you already have. That makes it ideal for brand-new businesses, sole traders just starting out, or anyone who wants the discipline of paying as they go.

• Pay at the till, but at trade prices
• No credit application or credit check
• Instant setup — good for day one of trading
• Often includes points, rewards or a discount card

Credit Account

A credit account means the merchant invoices you and you pay later, on agreed terms. The most common terms in the UK trade are "30 days end of month" (often written as 30 days EOM), meaning everything you buy in a given month falls due at the end of the following month. You pick up materials now and settle the bill weeks later.

This is where things get interesting for your cash flow — but it comes with strings attached. You have to apply for it, the merchant runs a credit check, and you're given a credit limit (the maximum you can owe at any one time). A credit account is effectively a short-term, interest-free loan from your supplier, and used well it's one of the most powerful cash-flow tools a small trade business has.

• Buy now, pay later on agreed terms (typically 30 days EOM)
• Requires a credit application and a credit check
• Comes with a credit limit that can grow over time
• Improves cash flow when managed properly

Why a Credit Account Helps Your Cash Flow

The single biggest reason to hold a credit account is the way it lets the customer's money pay for the materials, rather than yours. Here's a worked example that plays out on jobs every day across the UK.

Say you win a bathroom job and need £4,000 of materials — tiles, a suite, fittings and sundries. On a cash account, you'd have to find that £4,000 out of your own pocket before you've been paid a penny. On a 30-day credit account, you put the materials on the account, fit the bathroom over a week or two, invoice the customer, get paid, and then settle the supplier bill at the end of the following month. The customer's payment lands before the supplier's invoice is even due.

In other words, the credit account closes the gap between paying for materials and getting paid for the work — the working-capital gap. Without it, you have to fund every job's materials up front, which ties up cash and is one of the classic routes into overtrading: growing faster than your cash can support. With it, the job largely funds itself.

How "30 Days End of Month" Actually Works

People hear "30 days" and assume they get 30 days from each purchase. That's not how end-of-month terms work, and understanding the difference matters because it changes how much free credit you really get.

With 30 days EOM, the clock doesn't start on the invoice date — it starts at the end of the month in which you bought. So everything you buy in June is treated as one lot, and that lot becomes due roughly 30 days after 30 June, i.e. around the end of July.

That has a useful consequence. Something you buy on 2 June isn't due until the end of July — giving you nearly 60 days of free credit. Something bought on 29 June is also due end of July, giving you barely 30 days. The earlier in the month you buy, the longer your interest-free credit period. Knowing this, some trades time big material orders for the first few days of a month to stretch the credit as far as it will legitimately go.

How to Open a Credit Account

Opening a credit account is more involved than grabbing a trade card, but it's straightforward if you know what they'll ask for. The merchant is deciding how much money to lend you, so expect to provide:

• A completed credit application form — business name, structure (sole trader, partnership or Ltd), address and contact details.
• Trading history — how long you've been trading. Brand-new businesses can find credit harder to get, which is one reason to start on a cash account and build a track record.
• Bank details — usually for direct debit collection of the monthly balance.
• Trade references — sometimes two other suppliers you already pay on time, so the merchant can confirm you settle your bills.
• A credit check — on the business and often on you personally, especially for sole traders and new limited companies with no credit file of their own.
• A director's personal guarantee — common for a newly formed Ltd. This means that if the company doesn't pay, you're personally on the hook for the debt. Read this carefully before you sign.

You'll usually be given a modest starting credit limit — perhaps £1,000–£3,000 — which grows as you build a history of paying on time. Settle every statement on the dot for six to twelve months and most merchants will happily raise your limit when you ask.

Trade Discounts and Pricing

Merchant pricing has layers. There's the list price (what a member of the public pays), and then there's your account price — a discount off list that's baked into your account. The discount varies by product category: you might get a deep discount on plasterboard and timber but very little on a branded power tool.

The crucial thing to understand is that your account price is negotiable, and it improves the more you spend. The more business you put through a branch, the keener prices you can ask for. On bigger jobs you can — and should — ask your account manager for a specific price for the job, sometimes called a project price or a "price per job". A merchant will often sharpen their pencil considerably to win a £6,000 materials order they might otherwise lose.

Don't fall into the trap of assuming your account price is automatically the best price available. It isn't. For big-ticket items it's worth phoning round two or three merchants, or checking against Selco and the online sheds, and using the cheapest quote as leverage. A two-minute call asking "can you do better on this?" can save hundreds on a single order.

The Risks and Discipline a Credit Account Demands

Supplier credit is genuinely useful, but it is borrowed money, and treating it casually is how trades get into serious trouble. Be honest with yourself about the risks.

• It's easy to run up a bill you can't pay. Because the money isn't leaving your account today, it doesn't feel real. If a customer hasn't paid you and the supplier bill arrives anyway, you're funding their job out of nothing — the classic overtrading trap.
• Miss your terms and your account goes "on stop". If you don't pay on time, the merchant freezes the account. You can't buy any more materials on credit and may be forced to pay cash on delivery (COD) — which can bring a live job to a dead stop if you haven't got the cash.
• Late payment costs money and goodwill. Many accounts charge interest or fees on overdue balances, and a history of late payment damages the relationship and can see your credit limit cut just when you need it most.
• Personal guarantees make it personal. If you signed a director's guarantee, an unpaid account isn't just a company problem — the merchant can pursue you personally for the debt.

Managing Supplier Accounts Well

The trades who get the most out of supplier credit treat it as a system, not a convenience. A few habits make all the difference.

• Hold accounts with your main suppliers, but don't over-extend. A credit account each with your two or three core merchants is sensible. Spreading credit thinly across a dozen suppliers is hard to track and easy to lose control of.
• Reconcile statements every month. Check each statement line against your delivery notes and invoices. Merchants make mistakes — wrong prices, items you returned still showing, duplicate charges. Make sure you've been billed correctly and at the prices you agreed.
• Allocate materials to the right job. Tag every purchase to the job it belongs to. That's the only way to know each job's true material cost and its real margin — otherwise you're flying blind on profitability.
• Pay on time, every time. Protecting your terms and growing your limit both come down to one thing: settling the statement when it's due. Set a direct debit or a calendar reminder for the day.
• Use the credit period, but always hold the cash to clear it. Take the full 30–60 days, but never spend money you've set aside to pay the supplier. The credit period is a timing benefit, not extra money.
• Keep every VAT invoice. You'll need them for your bookkeeping and VAT — statements alone aren't valid VAT invoices, so file the actual invoices too.

The Tax and Bookkeeping Angle

Materials bought for jobs are an allowable business expense, so every pound you spend through your supplier accounts reduces your taxable profit. To claim that properly — and to reclaim VAT if you're registered — your records need to be tidy.

Keep every VAT invoice (not just the monthly statement), record each purchase against the job it was for, and reconcile against your account statements. If you're VAT registered, the VAT on materials is reclaimable on your return, which directly improves the cash position on every job. Sloppy paperwork here is money left on the table at year end — and exactly the sort of thing that trips trades up at tax time.

Choosing Your Suppliers

Price matters, but it's not the only thing — and chasing the cheapest merchant for everything usually costs you elsewhere. When you decide who to open accounts with, weigh up the whole picture:

• Price — your account discount and how negotiable it is on bigger orders.
• Stock and availability — a slightly cheaper merchant is no good if they never have what you need in stock.
• Delivery — free or cheap delivery to site can save you hours of running around and unbillable van time.
• Location — a branch five minutes from where you usually work beats a cheaper one across town.
• Account terms — the credit limit and payment terms on offer.
• Returns policy — how easy it is to take back surplus or wrong items, which matters on every job.

Most established trades end up with a primary merchant for the bulk of their buying and a couple of others for specialist stock or to keep the main one competitive on price.

Quick Reference: Cash vs Credit Account

The Bottom Line

Trade accounts and supplier credit are among the most useful tools a UK trade business has — but only if you respect them. Start on a cash account if you're new, move to credit once you've a track record, and treat the credit limit as borrowed money you must always be able to repay. Reconcile your statements, allocate every purchase to a job, and pay on time. Do that, and your suppliers become a genuine engine for your cash flow rather than a debt waiting to catch you out.