Do You Need a Mortgage Adviser in the UK?

IMPORTANT: YOUR HOME MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON YOUR MORTGAGE.

No, you do not have to use a mortgage adviser. You can apply directly to a bank or building society. An adviser becomes worth considering when your circumstances are not standard, when you cannot spare the time to compare the market, or when you want a regulated recommendation you can complain about if it proves unsuitable. This article sets out who gains most from advice, who can reasonably manage without it, how advisers are paid, and how a bank differs from a building society.

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TL;DR

Using an adviser is optional. Applying directly is legal and workable, but you do your own research and carry responsibility for the choice.
Advice is most useful if you are self-employed, a contractor, a first-time buyer, a foreign national, or have a low credit score, because these factors can limit the mortgages available.
Advisers must explain their charges, how they are paid and any limits on the mortgages they can recommend before you proceed. Check their status on the FCA register.
Banks and building societies both lend mortgages. Building societies are owned by their members rather than shareholders.
Prepare your identity documents, proof of income and credit report before the first conversation.

What a mortgage adviser does
Adviser or broker: is there a difference?
Applying directly or through an adviser
When an adviser is most useful
When you may not need one
How advisers are paid
How to check an adviser
Banks and building societies: what changes
Preparing before you speak to anyone
How we work at Haven Mark Advisers
FAQ
Sources

What a mortgage adviser does

A mortgage adviser looks at your income, outgoings, deposit and plans. They may research the market and then recommend a suitable mortgage. MoneyHelper describes the role as searching for suitable products and helping manage the application. The FCA guide to mortgage rules says you will usually speak to an adviser who discusses your circumstances before a mortgage is recommended.

In practice the work falls into four parts:

Fact-finding: your income type, commitments, deposit, credit history and timescale.
Product and lender selection: matching those facts to lender criteria, not only to the lowest advertised rate.
Application management: preparing documents, submitting the application and chasing the lender, valuer and conveyancer.
Recommendation paperwork: advisers must provide a mortgage illustration setting out repayments, fees, interest rates and special features, according to MoneyHelper.

Advice is not the same as an affordability check. Lenders must carry out their own affordability assessment, which considers income, outgoings and the effect of possible interest rate rises, as set out in the FCA guide. An adviser cannot override that assessment, and no adviser can guarantee that a lender will accept an application.

Adviser or broker: is there a difference?

Readers use "adviser", "advisor" and "broker" interchangeably, and in everyday use they mean the same thing: a regulated person who recommends a mortgage and arranges the application. What matters is not the job title but the firm's permissions and the range of lenders it can use. Ask whether the firm is whole-of-market or limited to certain lenders, as MoneyHelper advises. We cover that check below.

Applying directly or through an adviser

Going direct means you choose the lender, read the criteria, compare products yourself and apply. A lender's own staff can generally discuss only that lender's products. If you apply without advice, you bear full responsibility for the choice. If you receive regulated advice and the mortgage proves unsuitable, you have the right to complain to the Financial Ombudsman Service, according to MoneyHelper.

Point	Applying directly	Using an adviser
Research	You compare products yourself	Adviser searches and recommends
Range of lenders	One lender at a time	Depends on the firm: whole-of-market or limited
Understanding of criteria	You read each lender's criteria	Adviser matches your profile to criteria
Cost	Usually no separate adviser fee	Fee, commission, or both, disclosed before advice
Recourse if unsuitable	You carry the decision	Right to complain to the Financial Ombudsman Service
Time	Your own time	Shared with the adviser

Neither route is inherently better. A buyer with a straightforward salary, a large deposit and a clear view of one lender's offer may find direct application perfectly adequate. The balance changes as circumstances become less standard.

When an adviser is most useful

The GOV.UK guide to buying a home says an adviser may be especially useful if you have unusual circumstances, such as being self-employed or having a low credit score, because these can limit the mortgages available. The situations below are where that tends to matter.

Self-employed and company directors

Lenders differ in how they assess profit, salary and dividends, and in how many years of figures they want to see. You will normally need to evidence income with self-employed tax returns. Clean, up-to-date records make the process easier. Tools that keep Self Assessment records tidy help you present figures consistently before you apply.

The point is routing: which lenders treat your type of income in a way that fits, and in what order to approach them. No lender's approach should be read as a rule across the market, and we never assume one will accept your income.

Self-employed and company directors — overview diagram

Contractors

Day-rate contractors and fixed-term contractors are assessed differently from permanent employees and from limited company directors, and lenders vary in what contract evidence they ask for. If you contract through a limited company, treatment differs again. See our page on mortgages for day-rate contractors.

Lawyers, finance professionals and other high earners with complex pay

Bonuses, partnership drawings, deferred pay, share awards and commission can all be part of a professional package. Whether and how they count depends on the lender and the evidence. Our guides cover what lawyers, doctors and the self-employed need to know and how commission income is evidenced.

First-time buyers

First-time buyers face an unfamiliar sequence: decision in principle, offer, valuation, legal work, exchange and completion. An adviser explains each step and what is needed at each point. GOV.UK suggests a mortgage decision in principle signals seriousness to sellers and gives an estimate of borrowing capacity before you view properties. Our guide to a decision in principle for UK buyers explains what it does and does not mean. A decision in principle is not a mortgage offer.

Six stages from decision in principle to completion

If your deposit is small, read about buying with a 5% deposit.

Foreign nationals and visa holders

Immigration status, length of residence, credit footprint in the UK and income paid from abroad can all affect which lenders will consider an application. Expectations should be set at the start, and nothing should be assumed about eligibility. Our page on mortgages for foreign nationals and UK visa holders explains the usual areas of discussion.

Buy-to-let, new build and remortgage cases

Landlord mortgages use different assessments from residential ones. New build purchases add developer incentives, reservation timelines and valuation points. Remortgaging is a different process from a product transfer or rate switch, which is a new deal with your existing lender and usually involves no new lender underwriting of the same kind. Knowing which route you are on matters. See our pages on buy-to-let, new build, remortgage and rate switches and product transfers.

When you may not need one

Advice may add less if all of the following apply:

You are employed on a permanent contract with straightforward basic salary.
You have a good credit record and a sizeable deposit.
You know which lender you want and have read its criteria and the product details.
You are comfortable comparing the full cost of a deal, including fees and the rate after any initial period.
You are only switching to a new deal with your current lender and the choice is limited.

Even then, compare what your own lender offers with the wider market before you accept. Remember that going direct means the decision is entirely yours.

How advisers are paid

Advisers may charge a flat fee, an hourly fee or a percentage of the loan, and may also receive commission from the lender. They must disclose how they are paid before giving advice, according to MoneyHelper. The FCA guide confirms that at the first conversation an adviser must explain their charges, how they are paid and any limits on the mortgages they can recommend.

Ask these questions before you proceed:

What is the total fee, and when is it payable?
Is any part payable if the mortgage does not complete?
Do you also receive commission from the lender?
Which lenders can you recommend, and are any excluded?

Fees vary between firms. Our explainer on mortgage broker fees shows what to compare. At Haven Mark Advisers, the published fee is £495 for a purchase mortgage service and £195 for a remortgage service, each a one-off payment, and we may also receive commission from lenders. Details are on our fees page. We do not publish a price for product transfers and rate switches, mortgage porting or protection advice.

How to check an adviser

Search the official FCA register for the firm and the individual. MoneyHelper points to the register as the way to check status.
Ask whether the firm is whole-of-market or tied to certain lenders.
Ask for written fee information before any advice is given.
Ask who will handle your case from start to finish. Some firms pass clients between several people. We assign one dedicated adviser throughout.
Read the mortgage illustration before you accept any recommendation. It sets out repayments, fees, rates and special features.

Our guide on how to choose a mortgage broker goes into this in more detail.

Banks and building societies: what changes

Many readers ask whether to take a mortgage from a bank or a building society. Both lend to home buyers and both are regulated. The main structural difference is ownership. Building societies are customer-owned institutions that work for members, not shareholders, and the Building Societies Association says that model lets them focus on consumer value. Building societies and mutual-owned banks held 29% of outstanding UK mortgage balances in the six months to September 2025, and building societies accounted for 35% of UK branches, according to the BSA.

Also, building societies typically fund most of their mortgage lending through savers' deposits, often with roughly eight savers for each borrower, according to the BSA savings factsheet.

Ownership does not tell you which mortgage is cheaper or easier to obtain. Compare these points on the specific product:

The overall cost, including rate, product fee, valuation and legal costs, and the rate after the initial period.
Early repayment charges and whether you can overpay.
How the lender assesses your type of income.
Whether the product is available only to existing customers or through intermediaries.
Portability, if you may move during the term.

Some lenders of both types deal directly with customers only, and others are available through advisers. One lender's criteria are not a rule for the whole market, so do not assume that a refusal or acceptance at one will repeat at another. An adviser can narrow the field. A direct application to a single bank or building society shows you one lender only.

Preparing before you speak to anyone

GOV.UK recommends checking your credit score before applying. Higher scores generally make a wider range of deals accessible. Gather the following:

Proof of identity and address.
Proof of income, such as recent payslips or self-employed tax returns.
Evidence of the source of your deposit.
Details of regular commitments, including loans, credit cards and childcare.

If you are self-employed, make sure your Self Assessment returns and supporting records match. Document checks are rigorous. Platforms used by advisers can verify identity documents and flag discrepancies in bank statements and payslips, so mismatches between documents and what you declare are likely to surface. Declare all commitments and known future changes, such as a planned career break, a redundancy notice or a change of contract. Concealing or disregarding them can lead to an unsuitable mortgage and an unaffordable one.

How we work at Haven Mark Advisers

We advise lawyers, banking and finance professionals, self-employed business owners, contractors, first-time buyers and foreign nationals on residential mortgages, buy-to-let, remortgages, rate switches and new builds. Each client works with one dedicated adviser from first conversation to offer, and fees are agreed upfront. We also advise on protection, including life cover, income protection, family income benefit and critical illness cover. See our residential mortgage page, or read how we get you ready to offer. To discuss your case, start at Haven Mark Advisers.

We cannot guarantee eligibility, acceptance, borrowing amounts, rates or outcomes. Lenders make the final decision on every application.

FAQ

Is it a legal requirement to use a mortgage adviser?

No. You can apply directly to a lender. If you do, you choose the product yourself and bear responsibility for that decision. If you take regulated advice, you can complain to the Financial Ombudsman Service if the recommendation proves unsuitable.

Do I need a mortgage adviser to remortgage?

Not as a requirement. A remortgage to a new lender involves a new application, so advice can help you compare the market. A product transfer with your current lender is a different process and often simpler. Compare it with the wider market before you accept.

Is it worth speaking to an adviser if I am not ready to buy?

Often yes. An early conversation can show what to improve, such as your credit record or the way your income is evidenced, and can set realistic expectations. It does not commit you to buying.

Should I choose a bank or a building society?

Choose by the specific mortgage, not the type of institution. Compare total cost, early repayment charges, income assessment and flexibility. Building societies are member-owned, but that does not make any one product better suited to you.

Does using an adviser cost more?

Sometimes there is a fee, and the adviser may also receive commission from the lender. Advisers must tell you how they are paid before giving advice. Compare the total cost of the deal and the advice together.