Demo rate card29.9% EAR (variable), with the first £50.00 interest-free
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 detail | Demo terms |
|---|---|
| Account type | Arranged overdraft |
| Rate, reward or charge | 29.9% EAR (variable), with the first £50.00 interest-free |
| Illustrative credit limit | £0.00 to £1,000.00 |
| Access | Up to £1,000 arranged borrowing; the first £50 is interest-free in this demo model |
| Eligibility in the scenario | An adult Acorn Everyday story customer with an assumed arranged limit |
| Fees | No model account fee |
| Currency | GBP (£), used solely for fictional calculations |
Try your own numbers
Change the amounts to see what Overdreyft Buffer would do in the story. Fictional figures, no application, no advice.
- Interest-free portion
- £50.00
- If it lasted a full year
- £134.55An overdraft is a cushion, not a loan.
Overdreyft Buffer against the rest of current accounts
| Feature | Acorn EverydayNO MONTHLY FEE · NO INTEREST | Branch Out Business£6 MONTHLY FEE · NO INTEREST | Overdreyft Buffer29.9% EAR · FIRST £50 FREE |
|---|---|---|---|
| Type | Current account | Business current account | Arranged overdraft |
| Rate, reward or charge | 0.00% credit interest; £0.00 monthly account fee | 0.00% credit interest; £6.00 monthly account fee | 29.9% EAR (variable), with the first £50.00 interest-free |
| Minimum | £0.00 | £0.00 | £0.00 |
Overdreyft Buffer 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.
- 7 days
- 30 days
- 90 days
Constant borrowed balance; the EAR is converted to a daily equivalent.
View as a table
| Category | 7 days | 30 days | 90 days |
|---|---|---|---|
| £50 | £0.00 | £0.00 | £0.00 |
| £100 | £0.25 | £1.09 | £3.33 |
| £250 | £1.01 | £4.35 | £13.33 |
| £500 | £2.26 | £9.78 | £29.98 |
| £1,000 | £4.78 | £20.65 | £63.30 |
How much could a shortfall cost?
| Borrowed balance | After 7 days | After 30 days | After 90 days |
|---|---|---|---|
| £50.00 | £0.00 | £0.00 | £0.00 |
| £100.00 | £0.25 | £1.09 | £3.33 |
| £250.00 | £1.01 | £4.35 | £13.33 |
| £500.00 | £2.26 | £9.78 | £29.98 |
| £1,000.00 | £4.78 | £20.65 | £63.30 |
Assumptions: constant borrowed principal, no deposits, additional borrowing or fees; the first £50.00 remains interest-free. Estimated cost = max(balance − buffer, 0) × [(1 + 0.299)^(days/365) − 1]. This converts the illustrative EAR into an equivalent daily-compounding model and rounds only the final charge. It is an estimate, not a contractual daily posting schedule. An overdraft costs money; it does not produce a return.
Top questions about Overdreyft Buffer
What is Overdreyft Buffer for?
A buffer, not a savings pot. The model applies interest only to the amount above £50 and shows what a shortfall costs over several durations. There is no real credit facility to draw on. Its story purpose is illustrating the cost of a short-lived current-account shortfall. Everything on this site is fictional; nothing can be applied for.
How is interest on Overdreyft Buffer worked out?
29.9% EAR (variable), with the first £50.00 interest-free. The EAR is converted to a daily equivalent and applied to borrowing above the £50 buffer.
Overdreyft Buffer is arranged overdraft in the Current accounts range, used for illustrating the cost of a short-lived current-account shortfall. Its live rate card, summary and worked tables sit above this text and update whenever the product record changes.
Meet your next imaginary account
The purpose of Overdreyft Buffer is illustrating the cost of a short-lived current-account shortfall. Start with the access rules, then compare the cost or return with your story’s timescale. A higher headline figure does not make a locked account suitable for an immediate bill, and a reward percentage is not the same as an interest rate.
See the whole Current accounts 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.
AcornBank: entirely fictional banking, exceptionally committed squirrels.