Single Person Mortgages, Buying Alone and Applying Alone

What is a single person mortgage?

A single person mortgage is a residential mortgage with one borrower, assessed on that person's own income, outgoings and credit history, with the loan limited by the lender's income multiple and affordability assessment on that one income. No separate product exists for it, and applying alone does not usually add to the price on its own. It is ordinary regulated residential lending under the mortgage conduct rules (MCOB) of the Financial Conduct Authority (FCA), with the same affordability assessment and interest rate stress test as a joint application.

Mortgages for single people cover first-time buyers buying a house on their own, single parents, people who are married or in a civil partnership but buying in their own name, owners taking a joint mortgage into one name after separation or bereavement, and single landlords buying to let. A couple whose joint mortgage rests on one income faces the same arithmetic. Lenders treat each of these situations differently, so each has its own section below.

Two regulatory changes since 2025 affect how far one income can stretch. The first concerns the Bank of England's limit on high loan to income lending, in place since 2014, under which each lender keeps mortgages at 4.5 times income or more to no more than 15% of the number of new residential mortgages it makes. In July 2025 the Financial Policy Committee recommended letting individual lenders go above 15% while lending across the market as a whole stays within it. Interim permissions from the Prudential Regulation Authority and the FCA have applied since then, and the two regulators consulted from April to July 2026 on taking the firm-level limit out of their rules. As at October 2026 the final rules had not been published, and the interim arrangements run until they take effect or until 31 December 2026 (Bank of England: high loan to income lending, CP6/26). Separately, since 11 July 2025 the limit has applied only to lenders making more than £150 million of residential mortgages a year, up from £100 million (PRA PS11/25).

The second is the FCA's statement of 7 March 2025 on its stress test rule. MCOB 11.6.18R requires a lender to take account of likely interest rate rises on affordability for at least five years, but it does not say which rate the lender must test against. The FCA pointed out that many lenders build the test by adding a margin to their reversion rate, which can make it unnecessarily high where that rate does not take account of market expectations of future rates (FCA: interest rate stress test rule). In December 2025 the FCA said the industry had acted on this and was able to offer around £30,000 more to many borrowers (FCA, 15 December 2025).

Single person mortgage rates

Applying alone does not usually change the rate on its own. Lenders generally price by product and by loan to value band (LTV, the loan as a percentage of the property's value), and at specialist lenders by credit history, rather than by the number of borrowers. Because one income usually supports a smaller loan, single buyers more often borrow at 90% or 95% LTV, which lenders tend to price above the lower bands, and that is where much of any extra cost of buying alone comes from. It is also why schemes that stretch a deposit matter more to a single buyer than to a couple. Comparing lenders means looking at the rate, the fees and the term alongside the income multiple: on one income, a lender that lends 5 times instead of 4.5 can change the price range more than a small difference in rate does.

Buying on your own, or applying alone? Get in touch with your income, your deposit and, if you are married or in a partnership, the position of the person who will not be on the mortgage. We choose the lender on its income multiple and its rules for sole applications.

Single person mortgage criteria

Lenders apply their standard residential criteria to a single applicant, with every test run on one income. The table shows where that changes the answer, and which rows are Mortgage Lane's experience as at October 2026 rather than a published rule.

Types of single applicant, and what each needs

A single applicant may be buying alone, applying alone while married or in a partnership, or carrying a joint mortgage on one income, and lenders have different rules for each.

Single first-time buyers

A first-time buyer buying alone can use every scheme a couple can. With shared ownership in England, the buyer purchases a share of the home, usually 25% to 75% and from 10% on some homes, and pays rent on the rest, provided household income is £80,000 or less, or £90,000 in London (gov.uk: shared ownership, who can apply). First Homes, also only in England, are sold to first-time buyers at 30% to 50% below market value. The buyer must earn no more than £80,000 a year (£90,000 in London), which for a single buyer means their own income, and be able to get a mortgage for at least half the price (gov.uk: First Homes). The Mortgage Guarantee Scheme, permanent since July 2025, supports 91% to 95% loan to value mortgages for first-time buyers and home movers across the UK through the lenders that take part (gov.uk: 2025 Mortgage Guarantee Scheme).

The Lifetime ISA adds a 25% government bonus, up to £1,000 a year (gov.uk: Lifetime ISA), to savings used for a first home costing £450,000 or less, bought at least 12 months after the first payment in (gov.uk: using a Lifetime ISA for a first home). The government consulted from June to August 2026 on a new First Time Buyer ISA, which it says will be offered in place of the Lifetime ISA once it is available (gov.uk: First Time Buyer ISA consultation). First-time buyers' relief from Stamp Duty Land Tax in England and Northern Ireland means no tax on the first £300,000 of a home costing up to £500,000, and 5% on the part from £300,001 to £500,000 (gov.uk: SDLT residential rates). On a joint purchase every buyer has to be a first-time buyer, so a single buyer qualifies on their own history. Wales has Land Transaction Tax and Scotland Land and Buildings Transaction Tax, each with its own thresholds and reliefs. Our first-time buyer mortgages in Scotland page covers the LBTT relief.

Where income is the limit, family help can add a parent's income or savings without a second owner on the title. A joint borrower sole proprietor mortgage puts the parent on the mortgage only, and a gifted deposit or a family springboard arrangement adds savings. A lodger can help with the payments too, though lenders differ on whether they allow one and whether the rent counts, as our lodger mortgage page explains. The first-time buyer mortgage guide compares the schemes nation by nation. If you are buying alone, tell us your income, your deposit and where you want to buy.

Single parents

A single parent's income often comes from more than one source: salary, child benefit, maintenance and Universal Credit elements. Lenders differ on which of these they count and for how long. Some count child benefit and maintenance where there is a history of receipt and the children are young enough for the payments to continue, some want maintenance paid under a court order or a Child Maintenance Service arrangement, and some leave benefit income out altogether. The lender's affordability model also sets the household's living costs, children included, against that income, so the choice of lender affects both sides of the calculation. Our low income mortgages page goes through benefit and part-time income in more detail. Family income benefit, a life policy that pays a monthly income rather than a lump sum, can replace a single parent's earnings for the children if the parent dies during the policy's term. When you get in touch, list each source of income and the children's ages.

Married or partnered, applying alone

A married person or civil partner can get a mortgage alone where the property is bought in their sole name. The lender assesses only the applicant as a borrower: their income, their commitments and their credit file. A joint account or joint credit with the partner links the two credit files, though, and a lender can look at the partner's file. People do this where a partner has adverse credit or no income, where a partner does not want to be liable for the debt, or where the home is meant to be one person's asset. A sole application cannot use the partner's income, so a loan that needs both incomes needs both borrowers.

The partner who will live in the home is usually asked to sign an occupier's consent. The consent confirms that any right they have to live there, or any share they might claim in the home, ranks behind the lender's charge. In England and Wales that includes a spouse's or civil partner's statutory home rights; the rules, and the Scottish equivalent, are set out under ownership, home rights and stamp duty below. Two owners on the deeds with only one of them on the mortgage is a different structure. On a standard purchase every owner on the title is also a borrower, and a lender asked to accept an owner who is not on the mortgage decides under its own criteria.

Where a married applicant wants the partner's income counted without putting the partner on the title, the structure is a joint borrower sole proprietor mortgage, covered on our JBSP mortgages page. Lenders set their own rules on who can be the supporting borrower, so whether a spouse can take that role is a lender check. Married couples are also treated as one for the stamp duty higher rates, which matters where the partner already owns a home. Tell us your income and why you are applying alone, because the reason affects which lenders fit.

Joint mortgage, one income

A joint mortgage with only one earner is assessed on that income. The lender also checks both borrowers' credit files and commitments, so a second name with no income does not increase the loan, and the second borrower's debts can reduce it. A lender can accept a joint borrower who does not earn, such as a partner caring for children. The joint structure gives both partners ownership and responsibility for the debt, while the loan stays the size that one income supports. With the payments resting on one earner, our page on income protection explains cover that pays a monthly income if illness or injury stops that person working.

A joint mortgage paid by one person raises a different question. Joint borrowers are jointly and severally liable, which means each is responsible for the whole debt, whoever makes the payments, and the lender can ask either of them for all of it if payments are missed (MoneyHelper: joint loans). Paying more does not automatically change who owns what. The starting point is how the home is held and any declaration of trust. Without a declaration, a court in England and Wales can find that an unmarried couple intended different shares by looking at their whole course of dealing, including who paid the mortgage (Supreme Court: Jones v Kernott). On divorce or dissolution a court can decide how the home is divided if the couple cannot agree. A dispute about shares is one for a solicitor. If the borrower who pays wants the mortgage and the home in their sole name, the route is the transfer described under joint to sole. If one income is carrying a joint mortgage, send us the balance, an estimate of the value and both incomes.

Joint application where one person has bad credit

Where one partner has adverse credit, such as a county court judgment, a default or missed payments, there are two routes. A joint application keeps both incomes and goes to a lender whose criteria cover the weaker file, often a specialist lender, with pricing that reflects it. A sole application by the partner with the clean file means only that partner is assessed as a borrower, and can open high street lenders, provided that one income supports the loan. A joint bank account or joint credit does link the two credit files as a financial association, though, and a lender can look at the linked file and take it into account (ICO: credit).

Our CCJ mortgages, mortgages with defaults and mortgages with missed payments pages explain how lenders read each kind of credit event, and declined mortgages covers what to do after a refusal. Bring both credit reports and both incomes, and we will compare the two routes.

Joint to sole: removing a borrower

A joint mortgage becomes a single person mortgage in one of two ways. A transfer of equity with the existing lender changes the owners and borrowers on the current mortgage, with the lender's consent and a fresh affordability check on the borrower who stays. A remortgage to a new lender in that borrower's sole name repays the joint loan, with the same assessment on a new product. In both cases the departing borrower is released only when the lender agrees. MoneyHelper notes that even where both partners agree, or a court orders one of them to take over the mortgage, the lender does not have to release the other, and it applies its own affordability criteria (MoneyHelper: the family home on divorce). Any payment to the departing partner for their share comes from the new borrowing or from savings.

Separation and divorce usually follow this route as part of the financial settlement. If the partner who leaves needs a new home, shared ownership in England is open to people forming a new household after a relationship breakdown. Bereavement works differently, and the ownership rules on a death are set out in the next section. Step 3 of the arithmetic shows what one income has to carry. For a joint to sole case, send us the balance, an estimate of the value and the income of the borrower who is staying.

Single landlords buying to let

A single applicant buys to let on rental criteria. Most buy to let mortgages are not regulated by the FCA. The lender tests the expected rent against the mortgage interest at a stress rate, the interest coverage ratio test set out in the Prudential Regulation Authority's buy to let underwriting standards (SS13/16), and the number of borrowers makes no difference to it. Some lenders also set a minimum personal income, though in our experience most no longer ask for £25,000, and some use personal income to make up the difference where the rent falls just short, which is called top slicing. The buy to let mortgage guide covers the calculations. For a buy to let, send us the property details, the expected rent and your income.

Ownership, home rights and stamp duty for single applicants

Buying alone, or taking a joint home into one name, brings legal and tax rules into play alongside the mortgage, and they differ between England and Wales, Scotland and Northern Ireland. Mortgage Lane does not give legal or tax advice. The published rules are summarised here, and a solicitor or tax adviser confirms how they apply to a particular case.

Home rights and the occupier's consent

In England and Wales, where one spouse or civil partner owns the home and the other does not, the partner who is not an owner has home rights: if living there, a right not to be evicted or excluded except with the court's leave, and if not, a right to enter and occupy the home with the court's leave (Family Law Act 1996, section 30). Those rights can be registered with HM Land Registry against a home the other partner owns alone (gov.uk: home rights). They bind a lender only if they are registered before its charge, because the Act stops them taking effect through occupation alone (Family Law Act 1996, section 31). Lenders also ask the partner who is not borrowing, and usually any other adult who will live in the home, to sign an occupier's consent before completion because of the risk of a claim to a share. An adult living in the home who has paid towards it may have a share in it. A share held by someone in actual occupation can bind a lender, with exceptions such as where the person was asked about it and did not disclose it (Land Registration Act 2002, Schedule 3). The consent records that any such right ranks behind the lender's charge. The form, and the age from which an occupier has to sign, vary by lender. Partners who are not married or in a civil partnership have no home rights under the 1996 Act, but they may still claim a share, which is why a lender asks them to sign as well.

In Scotland a spouse who is not an owner has occupancy rights in the matrimonial home, and a lender protects its security with that spouse's consent or renunciation, or with a written declaration from the owner that the home is not a matrimonial home in which a spouse has occupancy rights (Matrimonial Homes (Family Protection) (Scotland) Act 1981). Northern Ireland has its own rules, and the lender's solicitor deals with whichever apply.

Stamp duty when a married person buys alone

For the higher rates of Stamp Duty Land Tax on additional homes, married couples and civil partners are treated as if they were buying together, even when only one of them is. If the partner who is not buying already owns a home, the purchase can attract the higher rates, usually 5% on top of the standard rates, unless the couple are permanently separated (gov.uk: higher rates of SDLT). First-time buyers' relief works differently: where only one spouse or civil partner is buying, HMRC does not look at whether the other has owned a home before (HMRC SDLT manual, SDLTM29845). Land Transaction Tax in Wales and Land and Buildings Transaction Tax in Scotland have their own rules.

How a joint home is owned, and what happens when one person dies

Joint owners in England and Wales hold the home either as joint tenants, with equal rights to the whole property, or as tenants in common, who can own different shares. When a joint tenant dies, the property goes automatically to the other owners. A tenant in common's share does not, and passes under their will or the intestacy rules (gov.uk: joint property ownership). Joint tenants can change to tenants in common, for example on separation, and one owner can make that change without the other's agreement. In Scotland a share passes automatically only where the title includes a survivorship destination, worded as to both owners "and the survivor"; without one, each share forms part of the owner's estate (HMRC Inheritance Tax manual, IHTM15050).

The mortgage is separate from the ownership. Because joint borrowers are jointly and severally liable, the survivor still has to repay the whole joint mortgage when the other borrower dies. Life cover arranged for the mortgage may repay some or all of it, and our page on life insurance when declined covers what to do if an insurer refuses that cover. Lenders have their own processes for bereaved borrowers and can allow time before any change is made, and extra borrowing or a longer term would be assessed on the survivor's income alone.

Transfer of equity: the legal steps and the tax

In England and Wales a transfer of equity is registered at HM Land Registry on a transfer deed, and where the property is mortgaged the lender's consent is needed (HM Land Registry: completing form TR1). The lender may insist on a solicitor or licensed conveyancer. Scotland has its own land register, kept by Registers of Scotland.

Stamp Duty Land Tax can be due. It is charged on any cash paid to the departing owner plus the share of the outstanding mortgage that goes with the share being transferred, and on the standard rates from 1 April 2025 the first £125,000 of that total is taxed at 0%. No SDLT is payable on a transfer to a spouse or civil partner under an agreement or court order on divorce or the dissolution of a civil partnership (gov.uk: SDLT on transferring ownership). Cohabiting couples who separate do not have that exemption, so the partner who stays can owe tax on taking over the other's share of the debt, as Step 3 below shows. Wales and Scotland apply their own taxes to these transfers.

How a single person mortgage is arranged

1. Income, commitments and credit. Each source of income, your credit commitments and your credit file. If you are married or in a partnership, how the title will be held and who will sign an occupier's consent. For a joint to sole case, the current balance and whether the departing borrower is to be released.
2. Lender match. Lenders compared on their income multiple and affordability model for one income, their part in schemes such as shared ownership and the Mortgage Guarantee Scheme, their rules for sole applications and occupier consent, and how they treat benefit and maintenance income.
3. Agreement in principle and full application. An agreement in principle on your income, then the full application with your evidence, and the lender's valuation.
4. Offer and completion. The mortgage offer, the occupier's consent signed where the lender asks for one, the legal work and completion. On a transfer of equity, the solicitor also prepares the transfer, registers it and files any stamp duty return.

The one-income arithmetic

One income sets the loan, and the deposit, the scheme and the lender's multiple decide what that loan buys. The steps follow one illustrative buyer: a sole applicant earning £45,000 a year with no credit commitments, £12,500 saved and a £250,000 home in mind. The calculator below starts on the same figures.

Illustrative arithmetic on hypothetical figures. 5 times income is the standard multiple in Mortgage Lane's experience, up to 6 for professionals and specialist products; it is not a product term or a lender limit, and each lender's affordability assessment decides the actual figure. Not an offer of finance.

Step 1. The ceiling: how much one income can borrow

The ceiling is the income multiple applied to income after credit commitments. The table shows the same salary at three multiples, the effect of one car finance payment, and a couple for comparison.

At the same multiple the single buyer's ceiling is £150,000 below the couple's, and the deposit and the schemes have to close that gap. Credit commitments weigh more heavily on one income. On the calculator's method each £1 a year of commitments comes off income before the multiple, so £3,000 a year of car finance removes £15,000 of borrowing at 5 times; lenders' own affordability models treat commitments in their own ways. A lender that applies a professional mortgage range to the applicant's job can take the ceiling towards 6 times, as our mortgages for teachers page shows for one profession, and our mortgage for a £50,000 salary page sets out the multiples on one salary.

Step 2. What the ceiling buys

At 5 times the buyer can borrow up to £225,000. The table shows what the £12,500 saved reaches on one income, then three routes to the £250,000 home.

The £250,000 home is out of reach on one income with £12,500 saved, because the loan needed is £237,500 and the ceiling is £225,000. It comes within reach with a £25,000 deposit, through a 40% shared ownership share with £10,000 down, or with a parent's income on the mortgage. At the illustrative 5.2% rate over 30 years, buying alone with £25,000 down means a £225,000 loan at £1,235.50 a month. On the shared ownership route the £90,000 mortgage costs £494.20 a month, and rent at an illustrative 2.75% a year on the £150,000 share not owned adds £343.75, a total of £837.95 before any service charge; the housing association also checks affordability and sets the rent. On the joint borrower sole proprietor route the £237,500 loan costs £1,304.14 a month. The cases we arrange on that route go up to 95% loan to value, though most are at 90%, where the deposit would be £25,000.

Step 3. Joint to sole

A couple with a £300,000 joint mortgage separate, and the partner keeping the home earns £45,000 with no other commitments. To take over the whole loan in one name, it has to fit that one income.

At 5 times, the partner who stays has to reduce the loan by £75,000, from savings, family help or part of the equity, before a lender will put it in one name, and even at 6 times the gap is £30,000. Paying the departing partner for their share of the equity makes the new loan larger again. The tax line assumes an unmarried couple and no other home owned. Taking on half of the £300,000 debt counts as £150,000 of consideration. At the standard rates from 1 April 2025 that is 0% on the first £125,000 and 2% on the next £25,000, or £500, before any cash paid for the equity is added. A married couple transferring under a divorce agreement or court order would pay no SDLT. A joint mortgage paid by one person meets the same arithmetic later, on the day the paying borrower wants the other name removed.

What decides the case

For a single buyer the income is the figure that is hardest to change quickly. The buyer can choose the lender, which sets the multiple and decides which schemes it takes part in. The deposit and the scheme can change, and a married or partnered applicant can also choose the structure. Working out the ceiling and each route before choosing a home shows which homes are realistic.

For the routes in the tables, see shared ownership mortgages, 95% mortgages, 90% LTV mortgages, JBSP mortgages and family help mortgages, and for council tenants in England, Right to Buy mortgages.