Business credit card guides for UK companies
By Chris
Twelve practical guides to getting and running a business credit card in the UK, written by a small-agency owner who has used one for a few years, with every figure sourced and dated.
How to use these guides
A business credit card is a simple product that people manage badly. The card itself is not complicated: you spend, a statement arrives, you pay it. The problems come from the things around it. Who is personally on the hook if the company cannot pay. Whether a purchase on the director’s personal card quietly becomes a director’s loan. How a dozen software subscriptions end up on one shared card number that nobody dares cancel. Whether the accounting feed is actually reconciling or just importing.
These guides deal with those surrounding problems, one each. They are written from two positions. The first is research: what the published terms of UK business cards say, checked against the issuer’s own pages on the date shown at the foot of every page. The second is first-hand use: I run a small UK digital agency and have used the Capital on Tap card on its free tier for a few years, including employee and virtual cards, the accounting sync, and the cashback. Where a guide draws on that experience it says so in a boxed first-hand note. Where it is describing something I have not done, it says that too.
Three principles run through all of them. Pay the statement in full every month, because a rewards card only makes sense when the interest line is zero: Capital on Tap charges no interest on purchases if you pay the statement balance in full by the due date, and the same is true of most UK business cards. Keep company spend on a company card, for reasons the business vs personal card guide spells out. And read the guarantee before you sign it, because on most business cards, including this one, the director is personally liable if the company cannot pay.
The guides are grouped into three sets. Getting started is for anyone who has not yet applied, or who applied and wants to understand what they signed. Running the card covers the operational habits that make the difference between a card that saves admin time and one that creates it. Money and tax deals with the decisions that involve HMRC, borrowing, and the company’s credit file. If you are not sure whether you qualify for anything at all, the eligibility checker takes a minute and stores nothing, and the best business credit cards roundup compares the main UK options side by side. Fees for the card we use are in one place on the fees and APR page, and anything that changes gets a dated entry in news.
Nothing here is financial or tax advice. The guides explain how products work and what their terms say; whether a particular product suits your business, or how to treat something in your accounts, is a question for you and your accountant. Where we could not verify a figure, we say so rather than guess, and our editorial policy explains how corrections work.
Getting started
Who can get a business credit card, what a director signs up to, and why company spend should never sit on a personal card.
- For limited companiesBusiness credit cards for limited companies: what to know before applyingHow business credit cards work for UK limited companies: eligibility, personal guarantees, director liability, bookkeeping and choosing a card.
- For sole tradersSole trader business credit cards: honest options when Capital on Tap says noCapital on Tap does not accept sole traders. Here are the UK cards and charge cards that do, what they cost and how to keep business spend separate.
- Business vs personal cardBusiness vs personal credit card for company spending: the director's loan trapWhy paying company costs on a personal card creates bookkeeping and director's loan problems, and what a business card fixes.
- Personal guaranteeDirector's personal guarantee on a business credit card: what you signCapital on Tap requires a personal guarantee. What that means for a director, when it bites, and how it compares with other issuers.
Running the card
The day-to-day: cards for staff, one virtual card per software tool, the accounting feed, and the habits that keep the interest line at zero.
- Employee cardsEmployee cards and spend controls: how we run them in a small agencyA first-hand guide to giving staff business cards with limits, how controls work on Capital on Tap, and the mistakes to avoid.
- Virtual cardsVirtual cards for software subscriptions: one card per toolWhy we put every SaaS subscription on its own virtual card, how it works on Capital on Tap, and how it tames renewals and cancellations.
- Accounting syncXero, QuickBooks and FreeAgent card sync: how the bank feed worksHow the Capital on Tap accounting feed works with Xero, QuickBooks, FreeAgent and Sage, what syncs, how often, and what to watch for at reconciliation.
- Avoid interestHow to avoid business credit card interest entirelyPay in full, set the right repayment option, use Smart Repay and know the cash-withdrawal trap: a practical guide to never paying card interest.
Money and tax
Paying HMRC and suppliers, choosing between a card, a loan and an overdraft, building the company’s credit file, and what Avios are really worth.
- Pay HMRC by cardPay HMRC and suppliers by card: fees, Bill Pay and what HMRC acceptsCan you pay HMRC with a business credit card? What HMRC charges, what Bill Pay costs, and when paying by card or transfer makes sense.
- Card vs loan vs overdraftBusiness credit card vs loan vs overdraft: which to use whenThe real differences between a business credit card, a term loan and an overdraft: cost, flexibility, speed, and which fits which kind of spend.
- Build business creditHow to build a business credit score in the UKWhat Experian, Equifax, Creditsafe and Dun & Bradstreet look at, how a business credit card helps, and the habits that move the score.
- Avios for businessEarning Avios on business spend: cards, rates and the tax questionHow UK businesses earn Avios: Capital on Tap's 10:8 free-tier rate against 1:1 on Pro, Amex options, and what to check with your accountant.
Frequently asked questions
Are these guides only about Capital on Tap?
No. Each guide covers the topic for UK businesses in general, then explains how it works on the card we actually use, Capital on Tap, because that is where our first-hand experience is. Where another card does something better, or is the only option (sole traders, for example), the guide says so and names the alternative.
Which guide should a new limited company read first?
Start with the limited companies guide for eligibility and the personal guarantee, then the business vs personal card guide, which explains why paying company costs on a personal card creates director’s loan problems. Once the card arrives, the accounting sync guide and the avoid-interest guide cover the two habits that matter most.
I am a sole trader. Is there anything here for me?
Yes. Capital on Tap is not available to sole traders, so the sole trader guide lists the UK cards and charge cards that do accept sole traders, what they cost, and the debit-card alternatives. The HMRC, card vs loan and business credit score guides apply whatever your legal structure.
Do the guides give tax or financial advice?
No. They explain how products work and what the published terms say, with sources and the date we checked them. Anything that depends on your circumstances, such as whether to incorporate or how to treat rewards in your accounts, is flagged as a question for your accountant.
How often are the guides updated?
Every figure comes from a central facts file that we re-check against the issuer’s own pages, and each page shows its last-updated date. When a term changes, we publish a dated news entry and update the guide it affects rather than leaving stale numbers in place.
Sources
- Capital on Tap Business Credit Card page
- Capital on Tap FAQ
- Capital on Tap Revolving Credit Facility Agreement
Figures last checked 15 September 2026. If something has changed, tell us and we will correct it.
Related reading
- ReviewA first-hand Capital on Tap review from a UK agency owner: cashback, employee cards, accounting sync, and the credit-limit problem nobody mentions.
- Best cardsThe best UK business credit cards compared on fees, rewards, FX and eligibility, with a clear view of who should choose something other than our pick.
- ToolsFree calculators for UK business credit cards: cashback and Avios, non-sterling fees avoided, and a Capital on Tap eligibility checker.
- FAQsShort answers to the questions we get asked most about Capital on Tap and business credit cards in the UK.