Instant business lines of credit: how fast they really are, what they cost and how to apply

An instant business line of credit usually means an instant decision, not instant money. iwoca's Flexi-Loan, a business loan with flexible repayment options for UK limited companies, gives you a decision within 24 hours, but it might be longer depending on the complexity of the request. Here's what speeds it up, what it costs and when a card suits better.

‍

What 'instant' means for a business line of credit

'Instant' almost always describes the decision, not the money. You apply, the lender decides, you accept an offer and then draw down what you need. Only the decision step can be instant.

A line of credit gives your company a limit it can borrow against, paying interest on what it uses. For the full picture, see how a business line of credit works. On a fast one, the three steps look like this:

1. Decision. Online lenders use your company's data to decide, often automatically. This is the part that can take seconds.
2. Offer. You see the limit, the price, any fee and the guarantee you'd sign before you commit.
3. Draw down. Once you accept, you move money into your business account when you need it.

So which lender type is quickest? Online lenders that decide on your company's data can often answer faster than a lender that wants filed accounts and a meeting first. Faster isn't always cheaper, so compare the full cost as well as the clock.

‍

How fast is an iwoca Flexi-Loan?

You'll get a decision within 24 hours, but it might be longer depending on the complexity of the request. The iwoca Flexi-Loan is a business loan with flexible repayment options: you draw down what you need up to your limit and can repay early with no penalty.

Here's how a Flexi-Loan works day to day:

• You can borrow from £1,000 to £1 million, over terms of up to five years.
• You draw down any amount up to your approved limit.
• While you still have a balance, you can ask to top up (subject to criteria).
• You pay interest on what you owe, so repaying early cuts the cost.
• Every new Flexi-Loan needs a personal guarantee from at least one director.

Speed matters most when the gap is short and the bill is big. Victoria Simpson, founder of VCare Group, uses iwoca to cover payroll while local authorities take time to pay: "It might be just a two or three day gap. But when you've got payroll running at that level, two or three days matters."

‍

What speeds up a decision, and what slows it down

Smaller applications can often be decided automatically on basic company details. Larger amounts, or applications our models can't decide on their own, go to an underwriter. They may ask for three or six months of bank statements and, for bigger amounts, your filed accounts.

That's why two companies applying on the same day can wait different lengths of time. The amount you ask for and the data we can see both shape the route your application takes.

To give yourself the best chance of a fast decision, have these ready:

• Your company registration number and the directors' details.
• Recent business bank statements, in case we ask for them.
• A realistic idea of how much you need and how you'll repay it.
• Your latest filed accounts, if you're asking for a larger amount.

‍

What a fast line of credit costs, and what you sign up to

You pay interest only on what you've drawn and still owe, plus any fee shown in your offer. At iwoca, interest is charged from 1.0% to 5.7% per 30 days, depending on your business. Every new Flexi-Loan needs a personal guarantee from at least one director.

Here's what to check in any offer, ours included:

• Interest. Charged on your balance, not your full limit. The rate depends on your company's credit profile, trading and the term.
• Fees. Some offers carry an upfront fee. With iwoca, any fee and the total cost are in your offer before you accept. See how iwoca prices loans.
• Representative APR. Rates vary between lenders. iwoca's representative rate is 3.33% per 30 days, and our business loan calculator shows your own figures. Compare the total repayment amount as well as the APR.
• Early repayment. You can repay a Flexi-Loan early at any time with no penalty.
• Personal guarantee. Many fast lines of credit are unsecured, so you don't put up an asset. Most still ask a director to guarantee the debt personally. Read what a personal guarantee means for you before you sign.

A fast line of credit isn't the right fit for every job:

• If you're buying a long-life asset such as a van or machinery, asset finance may suit better.
• If your cash flow has no clear point where the money comes back, borrowing fast can make the gap bigger.
• If a card's interest-free period would cover the spend and you can clear it in full, a card may cost less.

Not sure you're getting a fair price? Compare lines of credit on total cost, not just speed.

‍

Instant-approval business credit card or a fast line of credit?

A card suits regular, smaller spending you can clear each month, and some card providers say they decide within minutes. A line of credit suits cash you need in your bank account, such as payroll or a supplier who won't take a card. Both usually need a director's personal guarantee.

Cards are the everyday choice. Around 50% of smaller businesses used external finance in Q3 2025, and credit cards were the most used product, according to the British Business Bank's Small Business Finance Markets 2026 report.

If a card is what you need, compare business credit cards. Newer companies can start with our guide to business credit cards for start-ups. iwoca also has its own business credit card, which gives cashback on every £ you spend.

‍

Line of credit or a loan: which is faster for your situation?

Speed is similar; the difference is how you use the money. A line of credit, or a Flexi-Loan with flexible repayment options, lets you draw what you need and pay interest on that. A term loan pays one lump sum that you repay on a fixed schedule.

If you know the exact amount and need it all at once, read our guide to instant business loans. If customers owe you money on unpaid invoices, invoice finance is another fast option worth comparing.

‍

How to apply for a fast line of credit with iwoca

Check your eligibility online, share the details we ask for and get a decision. You'll get a decision within 24 hours, but it might be longer depending on the complexity of the request.

1. Check your eligibility. Tell us about your company and how much you need. Checking uses a soft search, which doesn't affect your credit score.
2. Share what we ask for. For smaller amounts that may be nothing more. Otherwise, we'll ask for bank statements and, for larger amounts, filed accounts.
3. Get your decision and offer. You'll see your limit, the price, any fee and the personal guarantee before you commit.
4. Accept and draw down. If the offer works for you, accept it and draw down what you need.

We've funded 100,000+ UK businesses, with £5bn+ in funding so far.

‍

Instant business line of credit FAQs

How fast can I get approved for an instant business line of credit?

It depends on the lender and the amount. With an iwoca Flexi-Loan, you'll get a decision within 24 hours, but it might be longer depending on the complexity of the request.

‍

Do I need collateral for an instant line of credit?

Many fast lines of credit are unsecured, so you don't put up an asset. Most lenders still ask a director for a personal guarantee. Every new Flexi-Loan needs one from at least one director.

‍

Will applying affect my credit score?

Checking your eligibility with iwoca uses a soft search, which doesn't affect your credit score.

‍

Can a new limited company get an instant line of credit?

We lend to UK limited companies, and every application is assessed on its own data.

‍

Is a Flexi-Loan a line of credit?

A Flexi-Loan is a business loan with flexible repayment options. You draw down what you need up to your limit, can top up while you still have a balance and can repay early with no penalty.