I have been involved in a number of discussions recently with lenders that are reassessing their definition of “normal” income.

They recognise that patterns of employment and earnings are changing—and that the mortgage industry needs to adapt before its traditional understanding of a reliable borrower becomes disconnected from the people actually applying for mortgages.

The profile of today’s mortgage applicant is already very different from that of a generation ago.

Contract work, career changes, overseas employment, foreign currency earnings, bonuses, commission, share schemes, side businesses and income from limited companies are no longer particularly unusual.

Increasingly, these are the people walking through our doors—virtually, of course.

Traditional mortgage lending was built around traditional employment.

The simplest applicant for a mortgage lender has historically been someone with one employer, a permanent contract and a fixed salary paid in sterling.

Their income can be verified through payslips, bank statements and a P60. It can be entered into an affordability calculator with relatively little interpretation, and the lender can reasonably assume that it will continue.

For much of the second half of the twentieth century, this reflected how a large proportion of people worked. Technology transformed our homes and lifestyles, but the fundamentals of employment remained broadly familiar.

Many people had one employer, one primary source of income and a career that progressed relatively steadily over time.

Mortgage lending criteria developed around that world.

The challenge is that the world of work is changing much faster than the processes used to assess it.

One person can now have several different forms of income.

A modern mortgage applicant might have a salary from their principal employment, regular freelance income, dividends from a small company and earnings from online work.

Another may work for a UK employer but receive part of their remuneration through commission, bonuses or restricted stock units. Someone else may live in the UK, work remotely for an overseas company and be paid in euros or US dollars.

None of these circumstances automatically makes the income unreliable.

In fact, several established income streams can sometimes provide greater resilience than reliance on a single employer. If one source reduces, the others may continue.

But mortgage lending does not always view it that way.

Some lenders will assess only the main salary. Others may include secondary income but reduce the amount used or require a longer history. Income from a newer activity may be disregarded altogether, even where it is regular, evidenced and likely to continue.

A borrower’s real financial position can therefore be stronger than the figure recognised by the lender.

Employment status does not always describe how someone really works.

Labels such as employed, self-employed and contractor remain useful, but they no longer tell the whole story.

An individual may be employed by their own company, receive a small salary and take dividends. A contractor may work through an umbrella company, a recruitment agency, a personal service company or a succession of fixed-term contracts.

A consultant might have one dominant client while building a wider customer base. A freelancer could receive assignments from several platforms but have a highly consistent level of annual income.

Two applicants with almost identical working patterns may therefore be classified differently depending on how their contracts and payments are structured.

This matters because the label applied at the beginning of an application can determine which documents are requested, which lending policy is followed and how affordability is calculated.

The right question is not simply, “Is this person employed or self-employed?”

It is: “How do they earn their income, how established is it, and how likely is it to continue?”

Variable income is not necessarily unpredictable income.

Bonuses, commission and overtime are often described collectively as variable income.

That description is accurate, but it can also be misleading. Income does not need to be identical every month to be dependable.

A salesperson may receive a relatively modest basic salary but have earned commission consistently for several years. A senior executive’s annual bonus might form a significant part of their total remuneration. A healthcare worker may regularly supplement their contracted salary with overtime or additional shifts.

The amount may fluctuate, but a clear pattern can still exist.

Lenders approach this in different ways. Some use an average of the latest two years. Others take the lower figure or use only a fixed percentage. A particularly strong recent year may be treated cautiously until a longer track record has developed.

These safeguards are understandable. A lender needs to avoid basing a mortgage on an exceptional payment that may never be repeated.

But there is an important distinction between income that changes and income that is unreliable. Good underwriting should be capable of identifying the difference.

Technology is creating entirely new ways to earn.

I often think about my own children, who are 20 and 17.

What will matter more throughout their careers: formal qualifications, or the ability to create opportunities by developing specialist knowledge, building an online audience and establishing a personal brand?

By the time they reach my age, I suspect some of the jobs they will do have not yet been invented.

Twenty years ago, there were no cloud solutions architects, AI trainers, podcast producers, YouTubers or TikTok creators building multimillion-pound businesses. Entire professions and industries have emerged in little more than a generation.

Technology is not simply creating new job titles. It is changing how people find work, build businesses, reach customers and receive payment.

Someone can now create a viable business from a laptop without conventional premises, employees or long-term customer contracts. Their income may come from subscriptions, advertising, sponsorships, consultancy, digital products and several online platforms.

To a traditional affordability model, that income may look fragmented.

To the person earning it, it may form one coherent and well-established business.

International working is becoming ordinary.

The distinction between UK and overseas employment is also becoming less clear.

A borrower may live permanently in the UK while working remotely for a company based in another country. They may travel internationally, be paid in a foreign currency or have a contract governed by overseas law.

International commuters, offshore workers and seafarers may spend substantial periods outside the UK while retaining their home and family life here.

Lenders will reasonably consider currency risk, tax residence, contractual protections and the practical location of the applicant’s work. But an overseas element should not automatically mean the income is less dependable.

Some international employers are larger and financially stronger than many UK businesses. Certain foreign currencies are highly liquid and stable. An applicant may also have worked under the same arrangement for many years.

The detail matters more than the label.

Career changes should not always reset the clock.

Careers are becoming more fluid. People retrain, move between employment and consultancy, establish businesses and combine different types of work.

A conventional assessment may focus on how long someone has held their current job or traded in their present structure. This can overlook the continuity between what they did before and what they do now.

An accountant who leaves a firm to establish their own practice is technically entering self-employment, but they are not starting again without experience, and they are unlikely to be starting again without clients. A doctor moving from employment into consultancy retains their qualifications, professional standing and earning capability.

Similarly, someone who changes from a sole trader to a limited company may have altered their legal structure without changing their underlying business.

Time in the current role remains relevant. But it should be considered alongside experience, qualifications, previous earnings, contracts and the reason for the change.

A new structure does not always mean a new risk.

Automated systems can struggle with nuanced income.

Mortgage technology has improved considerably. It can process straightforward applications quickly and reduce unnecessary administration.

But automation is only as flexible as the rules behind it.

An affordability calculator can add salary and bonus income, but it cannot always decide whether a recent increase is sustainable. A decisioning system may identify that a company has traded for only one year without recognising that its director has worked in the same profession for two decades.

Complex income often needs interpretation.

That does not mean abandoning sensible lending standards or accepting income without evidence. It means creating a clear route for strong applications that do not fit the standard model to be considered by an experienced underwriter.

The best lending decisions often combine good technology with human judgement.

Complexity is not the same as risk.

An applicant with several income streams may require more work to assess than someone with one fixed salary. But additional complexity does not automatically make them a greater credit risk.

The real questions remain familiar:

• Is the income genuine and clearly evidenced?

• Has it been received consistently?

• Is it likely to continue?

• Does the applicant have relevant experience?

• How dependent is the income on one employer, client or platform?

• What happens if one source reduces or stops?

• Are the proposed mortgage payments affordable now and in the future?

These questions can be applied whether the applicant earns one salary or combines income from several different activities.

A complicated payslip is not necessarily a complicated borrower. Equally, a simple salary does not guarantee financial security.

The form of the income is only one part of the assessment.

Lenders are beginning to reconsider what “normal” looks like.

Encouragingly, some lenders are already adapting.

They are reviewing policies for contractors, foreign currency income, retained company profits, share awards and applicants with multiple income streams. They are also involving brokers in discussions about where existing criteria no longer reflect the cases being presented.

This does not mean that every new form of income should be accepted without caution. Lenders still need sufficient evidence, a credible history and a reasonable basis for believing that the income will continue.

But criteria should distinguish between unfamiliar income and unsustainable income.

Yesterday’s “complex” is increasingly today’s normal.

The mortgage industry does not need to predict every job, platform or income structure that will emerge over the next 20 years. That would be impossible.

It does, however, need an approach capable of looking beyond familiar labels and understanding how people actually earn.

The lenders that do this well will not be taking unnecessary risks. They will simply be assessing modern borrowers in a modern way.