Building a credit history from scratch

If you have never borrowed, never had a credit card and never had a phone contract in your own name, there may be very little on your credit file for a lender to judge you by. That is what is often called a thin credit file, and it causes a problem that feels unfair: lenders cannot see that you are bad with money, but they also cannot see that you are good with it, so many will either refuse you or charge more. The Bank of England puts it plainly: having a bad credit rating will make it more expensive and harder to borrow money¹, and a thin file produces much the same hesitation, because the lender is being asked to take a decision with no evidence.

The way out is to build a record of small, regular commitments that are paid on time, month after month. StepChange lists the building blocks: opening a bank account, taking out a credit card and paying it off in full every month, getting a mobile phone contract and keeping up with payments, being on the electoral roll, and making sure all the information on your record is correct². None of these needs a large income, and several can be done before you ever borrow a penny. This page explains each step, the two main products designed for people starting from nothing, credit builder cards and credit union starter loans, and what to do if an application is turned down.

Why a thin credit file makes borrowing harder

A credit file is a record, not a verdict. It shows your name, address and date of birth, whether you are on the electoral roll at your current address, how much you owe, late and missed payments, county court judgments, repossession, bankruptcy or an IVA¹¹. A lender reading a file with none of the borrowing entries on it learns only where you live and whether you are registered to vote. That is thin evidence for a decision about lending money.

The consequences run wider than cards and loans. Banks often check your credit rating when you open a current account and can refuse an application based on credit history¹². A county court judgment can make borrowing harder or more expensive while it is recorded on your credit files¹³. Defaults stay on your file for six years and make it harder to borrow more money⁶. Insolvency makes it harder to get new credit¹⁴, and a trust deed, the Scottish equivalent, has the same effect for six years from the date it begins⁸. Even a debt that has become statute barred after the limitation period can still appear on your credit file in some cases, meaning lenders can see it and it may be harder to get future credit¹⁵.

For mortgages the pattern is sharpest. Lenders will probably want a larger deposit from you and for you to pay higher interest rates if you have a bad credit record². And it can be hard to find an affordable loan at all if you have a bad credit history¹⁶. The lesson for someone starting from scratch is that the record matters early: the entries that go on a file in your first years of borrowing, good or bad, shape what borrowing costs for years afterwards.

The first steps cost nothing. Registering on the electoral roll at a current address is free and is one of the pieces of information every report carries¹¹. Opening a bank account is the second: a basic bank account does not require a credit check to be passed, because banks use the check only to confirm identity, and approval is available whatever a person's credit history¹⁰. Proof of identity and address is needed to open one, and where the usual documents are not available, banks state what alternatives they accept¹⁷. A mobile phone contract then creates a regular monthly commitment that appears on the credit file, paid from that account.

Checking the record itself is free. Basic credit reports are free¹⁸, and the details of how to get yours are covered in how to check your credit report for free. Making sure everything on it is correct is listed by StepChange among the steps that improve how lenders see you², and the process for fixing errors is covered in how to correct wrong information on your credit report.

Credit builder cards: easier to get, with lower limits and higher interest

A credit builder card is a credit card aimed at people with a poor credit record or little credit history⁹. Companies market these cards as a way to better your credit score and help you get your finances on track⁹. The trade-off is built into the design: they come with lower spending limits, and they carry higher interest than mainstream cards. StepChange notes that while such cards can be cheaper than high cost credit like payday loans, the interest is still high enough that carrying a balance from month to month works against you⁹.

The mechanism is simple. You spend a small amount on the card, and you repay it. Paying the balance off in full every month means no interest is charged on most cards, and the record of on-time payments is what does the work on your file. StepChange's practical advice for managing one is short: set the balance of the card to be paid in full each month, and if you cannot pay in full, make sure you make the minimum payments⁹. Paying on time each month helps build your credit rating and helps you keep any promotional offer that came with the card⁹.

Two cautions apply. First, providers do not have to give you a credit card, and your application may be refused if your credit score is low or you have no history¹⁹. Second, some cards use introductory interest rates, where you start off paying a low rate of interest or none at all, and the rate then increases after a certain amount of time¹⁹. Knowing when any introductory period ends is part of using the card safely. The wider guide to credit cards covers how cards work in general, and what affects your credit score covers how card use feeds into the score.

How a credit builder card limit can grow as you repay

Credit builder cards tend to follow what Which? calls a "low and grow" approach: your initial credit limit is very low, say £100 to £200, but it increases as you prove you can manage it responsibly⁵. StepChange's policy work describes the same model across the market, where credit limits start small and are increased as customers borrow more²⁰.

Growth in the limit is not a reward to passively accept. StepChange advises opting out of letting the lender offer you automatic credit limit increases⁹. The reason is the second half of the "low and grow" description: limits rise as customers borrow more²⁰, so a bigger limit invites bigger balances, and a bigger balance carried past the payment date costs more at the high interest these cards charge. A limit increase is only good news if the spending on the card stays small and is cleared each month.

The behaviour that grows a limit safely is the same behaviour that builds the file: small purchases, paid on time, cleared in full where possible⁹. How much of an available limit you use is itself something lenders look at, which is covered in credit utilisation and your credit score.

Credit union starter loans: small loans from as little as £50

A credit union is a not-for-profit financial co-operative, and lending to people on a low income or people who have never borrowed before is part of what many of them do²¹. The Welsh Government's guidance states that credit unions provide loans starting from £50³, and StepChange describes most credit unions lending small loans of around £50 to £3,000⁴. That starting point matters: £50 is a sum a mainstream lender would not usually look at, but it is enough to create a repayment record on a credit file.

To get a loan from a credit union you need to be a member, and some will ask you to build up savings first²². The Building Societies Association's factsheet adds the detail on timing: some will lend to you as soon as you become a member, while others only lend after you have saved with them for a set period, and all check affordability by looking at the money you have left after paying your bills²³. So a starter loan is not always available on day one of membership, but the route in is open to people whose credit history is thin rather than damaged.

Credit unions are covered in more detail in the guide to credit unions, including how to find one and how membership works.

Save as you borrow: how starter loan savings are tied to lending

The savings link is the feature that most often surprises people. Shelter Cymru's guidance on credit union loans notes that you usually need to have a history of saving with a credit union before you can borrow, particularly for longer-term loans and mortgages²⁴. Some unions ask for savings before any lending at all²². The effect is that a starter loan often sits alongside a savings account at the same credit union, and the two are linked: you save regularly, you borrow a small amount, and you keep saving while you repay.

This structure does two things at once. It builds a repayment record on your credit file, which is the point of the exercise, and it builds savings that remain after the loan is cleared. It also means the savings are generally not free to withdraw while the loan is outstanding, since they stand behind the borrowing. Each credit union sets its own rules on this, so the specific terms are in the loan agreement.

The longer-term value of the savings habit is set out in Shelter Cymru's guidance: the saving history is what usually unlocks larger borrowing later, including mortgages²⁴. For someone building from nothing, that makes the starter loan less a one-off product and more the first rung of a ladder.

Who can get a starter loan: income, benefits and where you live

Credit unions exist to serve their members, and StepChange describes their role as providing support to people on a low income, or people who have never borrowed before²¹. There is no single national eligibility test, because each union sets its own rules, but the common requirements are membership, sometimes a period of saving first²², and affordability: the union looks at what you have left after paying your bills²³.

Where you live matters in one specific way: credit unions serve a local area, a workplace or another common bond, so which union you can join depends on where you live or work. Beyond that, income from work is not the only income that counts. Benefits are a legitimate income source in the wider borrowing landscape: Universal Credit is now the main benefit for people who are out of work or on a low income²⁵, and the question of how benefits interact with credit files is covered separately in benefits and your credit file.

For anyone whose income is irregular or who is self-employed, the affordability check is the same in principle: what is left after bills. The practical preparation is having evidence of income and outgoings ready, and having the bank account that repayments will come from. Opening that account needs proof of identity and address, and banks will tell you what they accept if you lack the standard documents¹⁷.

What a starter loan costs: example repayments and APR

The cost of any borrowing is driven by three things: the amount, the interest rate and the term. The size of the differences these produce can be seen in worked examples from lenders and consumer bodies. A £7,500 loan taken out over three years costs around £228 a month, with £8,206 paid back in total²⁶. On a smaller scale, borrowing £1,000 for one year results in a total repayment of £1,049 and 42p²⁷. The same arithmetic applies to any loan, including a starter loan: the rate charged changes both the monthly burden and the total cost, and a longer term lowers the monthly payment while raising the total interest paid.

Credit union loans are typically much smaller than £5,000, running from around £50 to £3,000⁴, and by law credit unions cap the interest they can charge, which is one reason StepChange points people on low incomes towards them rather than towards high cost credit²¹. The exact cost of a particular starter loan is set by the union making it, so the figure that matters is the one in your own loan agreement.

On early repayment, at least one credit union states that you can pay off a loan early, make additional lump sum repayments or increase your regular repayments without a penalty²⁹. Repaying early generally reduces the total interest paid, but the terms are set union by union, so confirm this before signing. The general costs to weigh up with any borrowing, which StepChange lists for mortgages but which apply to any loan, are the monthly repayment amount, any fees including fees to set up or change the deal, the term of the loan, and changes to interest rates².

Credit card or starter loan: how each one behaves

The two products work in different ways, and the difference matters more than the marketing. A credit builder card is revolving credit: you have a limit, you spend against it, you repay, and the limit is there again. A credit union starter loan is a fixed sum repaid in instalments over an agreed term. Which? describes the card model as "low and grow", with a starting limit of perhaps £100 to £200 that increases as you prove you can manage it⁵; the loan model starts instead with a sum, often from £50³, and a repayment schedule.

The cost structures differ too. A card's cost depends almost entirely on whether you clear the balance each month: cleared in full, most cards charge no interest on purchases, and the card costs nothing but builds the record. Carried over, the high interest these cards charge begins to run⁹. A loan's cost is set at the outset by the amount, the APR and the term²⁸, and you pay it down on a schedule. The risks differ in shape: with a card, the risk is that limit increases follow borrowing²⁰ and tempt a larger balance; with a loan, the risk is simply that the repayments must be affordable after bills, which is what the credit union checks²³.

Neither is a tool for consolidating existing debts. Debt consolidation means joining all your debts together, usually by taking out a loan and using the money to pay back the people you owe³⁰, and the sums involved in starter loans, £50 to £3,000⁴, are not designed for that. A low credit score or a less-than-ideal credit history can make it harder to get approved for consolidation loans and may mean being offered higher interest rates than you pay now³¹, so consolidation is a decision to take with free debt advice rather than a by-product of credit building. The guides to debt consolidation and debt solutions and your credit file cover that ground.

If you are turned down: why repeated applications can hurt

When you apply for a credit card, the provider checks your credit record with a credit reference agency to see if you are credit worthy¹⁹. That application leaves a mark on your credit file, so if you apply and are rejected, the rejection itself is visible⁵. StepChange is blunt about the consequence: any failed application reduces your credit rating, and this is called the "rejection spiral"⁹. Apply, fail, apply again elsewhere, fail again, and each attempt leaves the file looking worse.

The way to break the spiral is to stop applying and use the checks that do not leave a mark. Many providers offer a soft search eligibility check, which does not impact your credit score⁵, and these are covered in credit eligibility checkers and hard and soft credit searches. Experian's Fast Track, launched in September 2026, uses Open Banking and affordability data to give consumers more certainty before applying for loans and credit cards³², and the general trend towards pre-approval checks is covered in Open Banking, affordability checks and your credit file.

Before reapplying, it is worth checking the report itself. Errors on a thin file are common precisely because there is little on it, and making sure all the information on your record is correct is one of the recognised steps to improving how lenders see you². If refusal persists, the page on what to do if you are refused credit sets out the options, and a credit union starter loan remains a route whose affordability test looks at money left after bills rather than at a score²³.

Where to get free help

Building a credit history does not need paid help, and firms that charge to "repair" a file deserve caution: the FCA's guidance, added in June 2026, states that misleading claims about removing negative but accurate credit file entries are likely to contravene its Principles³³. Accurate entries stay for their full term, six years for defaults⁶, county court judgments⁷ and trust deeds⁸, and no company can lawfully remove them early.

Free, impartial support exists at every stage. StepChange's Credit Confidence work includes a simple rule worth keeping in front of you: only take out credit when you can pay it back³⁴. Basic credit reports are free¹⁸, and the credit reference agencies behind them are covered in the UK credit reference agencies. For anyone whose thin file sits alongside problem debts rather than just inexperience, StepChange, National Debtline and Citizens Advice provide free debt advice, and the guide to debt collects the options, including rebuilding your credit after debt problems. For single parents, Gingerbread's money and debt information includes the reminder that basic credit reports are free¹⁸, so checking the record costs nothing at any point in the process.