Line of credit instead of overdraft: How you can cut your interest costs by up to 50 per cent with this flexible alternative
12.06.2025
7
Minutes
Katrin Straub
Managing Director at nextsure
An unexpected financial shortfall forces many people to use an expensive overdraft facility. But there is a smarter solution that can save you hundreds of euros in interest. Discover the line of credit as a flexible alternative to an overdraft facility.
The topic in brief and concise terms
A revolving credit facility is a flexible cash reserve that often has interest rates only half as high as an overdraft facility.
Unlike an overdraft, a credit line is managed separately from the current account and requires a separate application as well as a credit check.
Interest is only charged on the amount drawn down, and repayment is made in flexible instalments with a usually low minimum repayment.
Overdraft credit cost trap: an expensive safety net
The overdraft facility is taken for granted by many account holders and is used without difficulty when needed. However, banks charge high interest rates for this convenience, which on average can be between nine and 15 per cent. On an amount of €2,000 left in the overdraft for three months, more than €50 in pure interest costs can quickly add up. Many consumers underestimate these costs because they are debited monthly and seem small. Using an overdraft is easy, but over time it is one of the most expensive ways to bridge financial gaps. Debt consolidation can often be the better option here, as our article on paying off an overdraft shows. These high costs make it necessary to look for an alternative.
The revolving credit line: flexibility meets lower interest rates
A revolving credit facility is a separate credit account that you can apply for from another provider, independently of your main bank. After approval, you are given a fixed credit line, for example €10,000, which you can use flexibly. Interest is charged only on the amount you actually draw down, not on the full limit. Interest rates for revolving credit facilities are often between four and eight per cent, significantly lower than for an overdraft. This can mean a potential saving of more than 50 per cent on interest costs. You repay the money in flexible instalments, with often only a small monthly minimum repayment of one to two per cent of the amount drawn down required. This structure offers a more predictable and cost-effective solution for recurring or unexpected funding needs, similar to a loan for any purpose. But how does this advantage stack up in a concrete numerical example?
Direct cost comparison: credit line vs overdraft
A calculation example illustrates the difference for a borrowing amount of EUR 3,000 over twelve months. With an overdraft facility at an assumed interest rate of twelve per cent, annual interest costs amount to around EUR 360. A revolving credit facility with an interest rate of seven per cent incurs costs of only EUR 210 over the same period – a saving of EUR 150. Repayment with the revolving credit facility often takes place via a minimum instalment of, for example, two per cent, i.e. EUR 60 per month. This predictable repayment protects against lasting debt. By contrast, the overdraft often tempts people to keep putting the debt off because there are no repayment plans. For unforeseen expenses, a quick loan is another option, but the revolving credit facility scores points for its reusability. However, the advantages go beyond the purely financial costs.
How to apply for a line of credit: requirements and process
The application for a revolving credit facility is a standardised process that requires good creditworthiness. Unlike an overdraft, it is not granted automatically. You must meet certain criteria to receive approval. Most banks require the following:
Being of legal age and having a permanent place of residence in Germany.
Regular, permanent income from employed work.
A positive Schufa report with no negative entries.
A German current account for the payout.
The application process itself is usually completely digital and often takes only a few minutes. You enter your personal details and provide proof of income, often via digital account access. An accurate budget calculation is crucial for approval. After a positive review, the credit line is usually available to you within 48 hours. However, there are also contractual details to bear in mind.
Expert tip: Watch out for variable interest rates and notice periods
A key feature of revolving credit facilities is the variable interest rate, which is often based on a reference rate such as that of the ECB. This means the bank can adjust the interest rate during the term, which may potentially increase your costs. Some providers guarantee a fixed rate for the first six or twelve months, which gives greater planning certainty. Our expert tip: Check the interest-rate fixation in the contract carefully and prefer offers with a longer fixed-rate period. Also pay attention to the notice periods. As a rule, the bank can terminate the revolving credit facility with three months’ notice. So a facility set up once is by no means guaranteed for ever. For larger, unexpected expenses, it may make sense to increase a loan directly. These aspects are crucial for long-term use.
When an overdraft can still be the better choice
Despite the higher costs, there are situations in which an overdraft facility is justified. If you only need a small amount for one or two days to bridge a direct debit, the overdraft is unbeatable for convenience. The financial impact of the interest on an overdraft of €100 for 48 hours is minimal and amounts to just a few cents. The effort involved in applying for a credit line for such short-term, small amounts is not worthwhile. The overdraft is ideal for very small amounts over very short periods. For anything beyond that and involving more than €500 or a week, a credit line is almost always the more financially sensible choice. Anyone aiming for permanently low repayments should consider a long-term loan. The right choice therefore depends on the individual situation.
Understanding the frame credit as a flexible alternative to an overdraft facility is the first step towards significant savings and better financial planning. It combines the spontaneity of an overdraft with the much more favourable terms of a personal loan. With interest advantages of up to 50 per cent and clear repayment rules, it protects against the debt trap. While the overdraft remains practical for very small amounts over a few days, the frame credit is the superior solution for anyone who regularly needs a flexible buffer of several hundred or several thousand euros. It is a tool for forward-looking financial planning. If you want to optimise your finances and avoid expensive overdraft interest, now is the right time to act.
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More useful links
Wikipedia offers a comprehensive explanation of the credit line.
The Gabler Bank Lexicon defines the term credit line.
Statista provides monthly data on interest rates for overdrafts in Germany.
The Deutsche Bundesbank provides detailed statistics on deposit and lending interest rates.
Statista shows data on how often overdraft facilities are used in Germany.
The Deutsche Bundesbank publishes statistics on consumer credit for private households, especially instalment loans.
The Consumer Advice Centre provides information on loans, borrowing and savings options when borrowing money.
The Federal Statistical Office (Destatis) provides information on assets and debts in Germany.
Statista presents data on the monthly expenditure of private households on loan repayment and interest.
FAQ
Who benefits most from a revolving credit facility?
A credit line is worthwhile for people who regularly or unexpectedly need a flexible financial buffer, but want to avoid the high interest rates of an overdraft. It is ideal for the self-employed, homeowners for repairs, or for families as financial security.
What costs can arise in addition to the interest?
Generally, no further costs are incurred with a revolving credit line as long as you do not use it. A small number of providers may charge a low annual fee, but this is unusual. When reviewing the contract, pay attention to the annual percentage rate (APR), which must include all costs.
How flexible is repayment, really?
Repayment is very flexible. Usually, a monthly minimum instalment of one to two per cent of the amount used (or at least €50) is required. However, you can repay higher amounts or the entire sum at any time without additional costs.
What happens if the reference interest rate rises sharply?
As the interest rates are usually variable, an increase in the reference interest rate (e.g. the ECB base rate) would also lead to an increase in your loan interest rate. The bank must inform you in advance of any such adjustment.
Can I have the credit limit increased later?
Yes, with many providers you can apply for an increase in your credit limit. This usually requires a new assessment of your creditworthiness and income.
Is a revolving credit facility suitable for car financing?
For the purchase of a car, a classic, earmarked car loan is usually cheaper than a revolving credit facility. A revolving credit facility is more suitable for unforeseen repairs or smaller purchases, not for a large one-off investment.
