How to avoid business credit card interest entirely

The one rule: pay in full by the due date

Clause 4.4 of the Capital on Tap credit agreement says: “We do not charge interest on Card Purchases shown on a statement if the closing balance is paid in full by the payment due date shown on that statement.” That is the whole strategy. A purchase made on day one of a billing period sits on the account until the statement is produced, then until the due date, and if the closing balance is cleared by then the purchase has cost nothing. Do that every month and the card is a free short-term credit line that pays 1% cashback.

The same clause has two exceptions, and both are covered below. Cash withdrawals accrue interest from the day they are taken. And if you did not clear the previous statement in full, purchases accrue interest until you next do.

How statements and due dates work

Capital on Tap produces a statement after each monthly billing period and emails it the day after the period ends. The statement shows the closing balance, the minimum payment and the due date, and the same information sits in the Payments section of the portal. The agreement says the minimum payment is collected by Direct Debit a set number of business days after the statement date, and the FAQ says the due date cannot be moved.

Two things follow. First, the length of your interest-free window on any given purchase depends on where in the billing period it falls: early-period purchases get the longest run, purchases on the last day of the period get the shortest. Second, because the closing balance is what must be cleared, a purchase that posts after the period closes belongs to the next statement and does not need to be paid this month. The accounting sync shows you the same transactions, but it is the statement that defines what is due.

Choose the Full Balance repayment option

Capital on Tap collects the monthly payment by Direct Debit and lets you set that Direct Debit to one of three amounts: minimum, fixed amount or full balance. The FAQ describes them as “Full balance”, “Minimum payment” and “Fixed amount”. Only the first guarantees the no-interest outcome without you doing anything each month.

Set it in the Payments page of the portal. The FAQ notes that a change applies from the next billing period, not the current one, so if you are switching from Minimum to Full Balance mid-period, make a manual payment for the current statement as well. Manual repayments can be made at any time by bank transfer or by debit card, the latter up to £5,000.

There is also a weekly full-balance option: a Direct Debit is scheduled every Monday for collection on Thursday, clearing whatever is outstanding. The FAQ says a weekly collection may not be scheduled if there is no balance, if the account is not in good standing, or if the monthly due date is close. Weekly clearing does not change the interest rule, but it keeps the balance and therefore your utilisation low, which matters for the reasons on our credit-limit page.

Smart Repay: Direct Debit or Open Banking, weekly or daily

Smart Repay is Capital on Tap’s newer automatic repayment feature. The FAQ says: “When you enroll in Smart Repay, our system automatically determines the most efficient payment method for your business.” In practice that means one of two methods. If your bank supports Open Banking payments and your credit limit is below your bank’s single-payment limit, repayments go by instant bank transfer, weekly or daily. Otherwise they go by weekly Direct Debit, which the FAQ says can take up to four business days to process.

Timings are fixed: daily repayments are taken at 2pm on weekdays, weekly ones at 7am on Mondays, and a payment is only taken if there is an outstanding balance. A payment that falls on a UK public holiday moves to the next working day. If a Smart Repay payment fails it is not retried; the next scheduled one runs instead, and daily bank-transfer Smart Repay switches itself off after three consecutive failures, weekly bank transfer after two. Changing your linked bank account also turns Smart Repay off until you set it up again.

Daily Repay has a second effect on Pro: spend repaid this way earns the boosted rate rather than the standard one, which is part of the maths on the Pro page. On the free card the benefit is simpler. With the balance cleared every weekday there is no closing balance of any size to forget about, and the interest rule takes care of itself.

The minimum payment, and why it is a trap

The agreement sets the minimum at the greater of 10% of the balance or £100. Paying it keeps the account in good standing and is what the Minimum repayment option collects. It is also the fastest way to start paying interest, because everything above the minimum stays on the account and, from that statement on, purchases accrue interest daily.

A £3,000 balance at the minimum falls by £300 in the first month, then less each month as 10% of a shrinking figure, until the £100 floor takes over. The variable rate runs on the rest throughout. If you have decided to borrow on the card for a few months, set a Fixed Amount well above the minimum and a date by which it will be cleared. If you have not decided to borrow, the Minimum option should not be selected at all. The comparison with a loan or overdraft for a balance you will carry is in business credit card vs loan vs overdraft.

One missed full payment resets the clock

This is the mechanic most people miss. Clause 4.4 continues: “However, if you have not paid the closing balance on the previous statement by the payment due date, interest will accrue on Card Purchases on a daily basis until you next pay your closing balance in full by that payment due date. After you make full payment by your payment due date, you will not be charged interest on Card Purchases providing you continue to pay off the full balance by the payment due date.”

In plain terms: if you pay only part of a statement, you do not just pay interest on the part you carried. New purchases in the following period accrue interest from the day they are made, because the interest-free treatment is conditional on the previous statement having been cleared. The way back is to pay a closing balance in full by its due date, after which the interest-free treatment resumes. Interest is applied at the statement date, and the agreement notes an adjustment may appear on the following statement, so the cost of a partial payment can show up over two statements rather than one.

The practical rule is that a single short month costs more than the missing amount suggests, and the fix is to get back to a fully cleared statement as soon as you can, not to drift on a fixed amount.

Late payments: £0 fee, but not free

Capital on Tap’s charge for missing the minimum payment is £0 charge for missing the minimum payment, which is unusual and genuinely useful. It is not the same as lateness having no cost. Four things still happen.

• Interest accrues on purchases under the reset mechanic above.
• The Rewards Terms say that if you are late by more than 14 days “you may lose all Points in your Points Account that you have earned but not yet claimed”. For anyone saving points for a larger redemption, that is the most expensive consequence on the list, and it is why we suggest redeeming regularly on the rewards page.
• The FAQ says the account may be suspended if Capital on Tap cannot reach you about a missed payment, and the agreement lists two consecutive missed minimums among the events that let it act.
• If it goes to enforcement, the agreement allows reasonable enforcement, legal and tracing costs.

The agreement also requires the minimum payment to be made by Direct Debit from your business account, and the FAQ lists a recently cancelled or failed Direct Debit among the reasons a card may stop working. Keep the mandate live even if you make manual payments as well.

How the variable rate tracks Bank Rate

If you do carry a balance, the rate you pay has two parts. The FAQ puts it this way: “Your monthly variable interest rate is made of two parts: our fixed business rate plus a variable portion that tracks the Bank of England Bank Rate.” The business rate is set for you at application based on your personal and business credit history and the Bank of England base rate, and the agreement says the Bank Rate element applies for a whole billing period, with any change taking effect from the period after the change. If Bank Rate falls below zero it is treated as zero.

Bank Rate is 3.75% at the time of writing, according to the Bank of England. Capital on Tap advertises rates as low as 13.86% APR (variable) and does not publish a representative APR; your own rate is on your credit agreement and in the portal. Because the business rate is fixed unless Capital on Tap changes it under the agreement, movements in your rate from month to month will normally be Bank Rate movements, and the FAQ confirms “Your rate can only change at the start of a new billing period.” Capital on Tap also says it reviews accounts for rate reductions as part of its regular reviews. Every charge, including the ones not about interest, is on the fees and APR page.

Cash withdrawals: interest from day one

The agreement is direct: “Interest will accrue on Cash Withdrawals on a daily basis from the time debited from your Account until repaid.” There is no interest-free window on cash, and the definition of a cash withdrawal includes ATM withdrawals and cash-like transactions such as drawing funds down online to your nominated business account. The card charges £0 ATM fee and £0 manual bank cash withdrawal (domestic and international), so the cost is entirely interest, but it starts immediately and cash earns no points.

If you need cash in the business account for a payment a card cannot make, compare the drawdown against Bill Pay, which pays an invoice by bank transfer from the credit line for a fee and treats the payment as a purchase within the statement cycle. That trade-off is in paying HMRC and suppliers by card. And if you have taken cash, repay it as soon as the money is back rather than waiting for the statement; the agreement says repayments are applied to the highest-rate balance first.

Preloading: spending without borrowing

Preloading lets you add your own money to the card account and spend it before touching the credit limit. Capital on Tap’s page describes it as a way to spend beyond the limit; the same feature also works as a way to run the card with no balance owed at all. Preloaded funds are held as e-money and safeguarded, and on Pro they earn the boosted rate.

It is a reasonable choice for a one-off large purchase you would rather not see on a statement, or for a business that wants the card’s controls and rewards without any credit exposure. It does not build a repayment record, because nothing is being repaid, and money sitting preloaded is not earning anything elsewhere. For most businesses the better default is to use the credit line and clear it, and to preload only when a purchase would otherwise exceed the limit.

What carrying a balance costs (illustrative)

The table below is illustrative. The rates are round numbers chosen to show the scale of the cost; they are not Capital on Tap’s rates, which are not published as a representative figure, and the maths is simple monthly interest with no daily compounding. Your actual charge depends on your own rate, the days each amount was outstanding and the reset mechanic above.

Set those figures against 1% cashback on the same spend and the point is obvious: one month of interest on a carried balance wipes out many months of rewards. The card is a good product paid in full and an expensive one otherwise.

If you cannot pay

The FAQ’s advice is to call before the due date, on 020 8962 7401, and it says that “if we cannot reach you, your account may be suspended”. If you are already in arrears, the portal has a self-serve tool for explaining your circumstances so that support can be arranged, and the agreement provides for an agreed minimum payment while a repayment plan is in place. For businesses in wider difficulty the FAQ points to The Finance Exchange, an independent adviser Capital on Tap has partnered with.

None of that is legal or financial advice, and a business that cannot meet its card payment usually has a bigger cash-flow question to answer. The thing not to do is let the Direct Debit fail silently. A phone call before the due date keeps options open; a missed payment closes some of them and, under the rules above, starts interest running on everything.