A little nutty. Entirely fictional. No real banking here ↗

Credit cards · Products · FROM THE ACORNBANK FOREST

Acorn Builder Card — Worked Woodland Examples

For squirrels whose ledger is short rather than bad. A modest limit, a steep APR and no annual fee: used lightly and cleared monthly it costs nothing, used as a loan it is the dearest nut in the forest.

A fan of acorn-branded bank cards.
A fictional bank, a real sense of humour. All people, places, products and figures are invented. No real banking or financial advice. About this demo.

Demo rate card34.9% illustrative APR (variable); credit limits from £250.00

The pound values and percentages on this page are invented AcornBank product terms, chosen for a realistic bank-style example. They are not current market offers, an invitation to deposit or invest money or a forecast of what a real bank will pay.

Product detailDemo terms
Account typeCredit-builder credit card
Rate, reward or charge34.9% illustrative APR (variable); credit limits from £250.00
Illustrative credit limit£250.00 to £1,500.00
AccessSmall limits, a high APR and no fee; the story rewards paying the statement in full every month
Eligibility in the scenarioAn adult story applicant with a thin or bruised fictional credit file
FeesNo model account fee
CurrencyGBP (£), used solely for fictional calculations

Try your own numbers

Change the amounts to see what Acorn Builder Card would do in the story. Fictional figures, no application, no advice.

Monthly payment over 12 months£117.17£206.03 interest at 34.9% APR

Acorn Builder Card in charts

The same fictional model as the tables below, drawn rather than written. Hover or focus a mark for its value, or open the table view.

Paying off £1,200 at the standard rate34.9% APR, equal payments over 12 months
  • Balance
  • Interest so far
£0£500£1,000£1,500StartM2M4M6M8M10M12Start · Balance: £1,200M1 · Balance: £1,113M2 · Balance: £1,024M3 · Balance: £932.79M4 · Balance: £839.18M5 · Balance: £743.21M6 · Balance: £644.81M7 · Balance: £543.93M8 · Balance: £440.50M9 · Balance: £334.46M10 · Balance: £225.74M11 · Balance: £114.27M12 · Balance: £0.00£0.00Start · Interest so far: £0.00M1 · Interest so far: £30.31M2 · Interest so far: £58.43M3 · Interest so far: £84.30M4 · Interest so far: £107.86M5 · Interest so far: £129.06M6 · Interest so far: £147.83M7 · Interest so far: £164.12M8 · Interest so far: £177.86M9 · Interest so far: £188.99M10 · Interest so far: £197.44M11 · Interest so far: £203.14M12 · Interest so far: £206.03£206.03

Interest rounded monthly; eleven equal payments and an adjusted final payment.

View as a table
PointBalanceInterest so far
Start£1,200£0.00
M1£1,113£30.31
M2£1,024£58.43
M3£932.79£84.30
M4£839.18£107.86
M5£743.21£129.06
M6£644.81£147.83
M7£543.93£164.12
M8£440.50£177.86
M9£334.46£188.99
M10£225.74£197.44
M11£114.27£203.14
M12£0.00£206.03
Two ways to use a £500 limitInterest charged over a year
£0£25£50£75£100Spend £150, clear in full · Interest charged: £0.00£0.00Spend £150, clear infullBorrow £500 over 12 months · Interest charged: £85.86£85.86Borrow £500 over 12months

The first bar is the whole point of a credit-builder card.

View as a table
CategoryInterest charged
Spend £150, clear in full£0.00
Borrow £500 over 12 months£85.86

Using a small limit well

ScenarioSpentInterest chargedTotal repaid
Spend £150 and clear the statement in full£150.00£0.00£150.00
Borrow the £500.00 limit and repay over 12 months£500.00£85.86£585.86

The story rewards the first row. The second shows why a credit-builder card is a ledger exercise rather than a loan.

If £1,200.00 is borrowed at the standard rate

MonthPaymentInterest chargedBalance after payment
1£117.17£30.31£1,113.14
2£117.17£28.12£1,024.09
3£117.17£25.87£932.79
4£117.17£23.56£839.18
5£117.17£21.20£743.21
6£117.17£18.77£644.81
7£117.17£16.29£543.93
8£117.17£13.74£440.50
9£117.17£11.13£334.46
10£117.17£8.45£225.74
11£117.17£5.70£114.27
12£117.16£2.89£0.00

Borrowing assumptions: one £1,200.00 opening balance, no new spending, no fees or cashback, and 34.9% APR held constant. The equivalent monthly rate is (1 + 0.349)^(1/12) − 1. Interest is rounded monthly; eleven equal payments are followed by an adjusted final payment. Total repaid: £1,406.03; total interest: £206.03. This chosen repayment plan is not a minimum-payment schedule. Reward and offer tables describe separate situations from this one.

Acorn Builder Card is credit-builder credit card in the Credit cards range, used for showing a small, tidy borrowing history in the story. Its live rate card, summary and worked tables sit above this text and update whenever the product record changes.

Follow the numbers, not just the headline

The tables show the opening amount, time period and result for this product type. Savings figures are before tax unless the wrapper is tax-free; investment figures are scenarios, not forecasts; borrowing figures separate payments, interest and outstanding balance. A displayed result is conditional on its assumptions, not a guarantee. Keep unrelated examples separate rather than adding their balances together.

See the whole Credit cards range or compare every product on the rates page.

What the example does not promise

All figures are invented and shown to make the demo useful to read and crawl. No money is held, no application is available, and no deposit-protection, regulatory or tax-wrapper status is claimed. Calculations do not account for personal tax, inflation or unstated changes in rates. The fictional bank manager can guarantee only that the next paragraph contains no real acorns.

Related reading


AcornBank: entirely fictional banking, exceptionally committed squirrels.