Published 2026-07-13 · Contractor Mortgage Guide

Locum doctor and medical contractor mortgages

Quick answer: Locum work looks a lot like day-rate contracting from the outside — variable sessions, invoiced or payslipped income, no single employer — but most lenders don't actually assess it on their day-rate contractor policy. A handful run a separate locum policy with its own rules; most simply haven't published a locum-specific route at all, which means your outcome depends heavily on which lender you ask and how well you can evidence a consistent income pattern.

Why "locum" isn't the same question as "contractor" to a lender

Day-rate contracting policies are usually built around a single current contract: a rate, a number of days, and an end date. Locum work rarely looks like that. A locum doctor might work sessions across two or three trusts in a month, a locum dentist might cover multiple practices, and a locum pharmacist or nurse might pick up shifts through an agency with no fixed pattern at all. There's often no single "contract" to point to — just a run of timesheets, remittances or agency payslips.

That mismatch matters, because a lender's day-rate formula (day rate × days per week × weeks per year) assumes a regular working pattern that a lot of locum work doesn't have. Some lenders have built a dedicated locum policy to deal with this properly; most, as far as published criteria show, haven't — which means locum applicants often get folded into whichever general income category a lender defaults to (self-employed, umbrella, or a case-by-case underwriting decision), rather than a route designed for how they actually earn.

What's actually confirmed

Two lenders on our panel run a dedicated, standalone locum policy — a better deal than being folded into a broader category — and they don't work the same way:

• Halifax runs a dedicated sub-policy for locum doctors and dentists, separate from its general day-rate contractor route. It requires a minimum six months' locum history before your income can be assessed on this basis — so a newly-qualified locum in their first few months would likely need to wait, or be assessed differently, until that history exists.
• Accord treats locum income under its own locum policy rather than running it through the day-rate contractor formula it uses for standard contractors. Accord's locum route uses 60% of your variable income, averaged, and also requires a minimum six months' history before it can be used. That 60% haircut is a meaningfully more conservative starting point than the ×5×46 (or similar) annualisation a day-rate contractor on Accord's standard policy would get — worth knowing before you assume your day-rate contractor friend's numbers apply to you too.

Beyond those two, three more lenders on our panel do mention locum income in writing — just inside a broader, less favourable zero-hours/agency category rather than a dedicated locum route: Skipton groups "Locum Medical Professionals" together with supply teachers and agency/zero-hours workers, requiring 12 months' experience in the same field and 12 months' contracting history; Coventry Building Society names "NHS nurses/locums" within its restricted zero-hours occupation list, requiring 12 months' continuous employment; and Nationwide exempts "NHS bank nurses, locums" from its usual same-employer rule for temporary work, but only if the locum income isn't your primary income source — it must sit alongside a larger, regular income. None of these three offer terms as favourable as Halifax or Accord's dedicated locum policies.

Beyond these five, published criteria for locum-specific treatment are thin. Several lenders that are otherwise contractor-friendly simply don't confirm, in writing, how they'd treat locum income specifically — which isn't the same as saying they'll decline it, just that you should expect a case-by-case underwriting conversation rather than a formula you can calculate in advance. If you're a locum, treat any income-multiple assumption as unconfirmed until you've had it checked against a specific lender's current policy.

Doctors, dentists, nurses and allied health — does the profession matter?

Of the two dedicated locum policies above, only Halifax's is explicitly framed around locum doctors and dentists. Accord's locum policy isn't profession-restricted in its published criteria — it applies to locum income generally, with the one specific exclusion being bank nursing (which Accord routes through its separate NHS-bank zero-hours category instead). That exclusion implies other professions, including nurses working outside a bank arrangement, are otherwise in scope for Accord's locum route. Whether Halifax's doctors-and-dentists policy extends informally to other allied health professionals isn't something we can confirm from published criteria. Regulated clinical professionals with recognised, verifiable registration (GMC, GDC, NMC, HCPC and equivalent) tend to be viewed more favourably by underwriters generally, since professional registration is itself a form of income-continuity evidence — but that's a general underwriting tendency, not a confirmed rule, and it shouldn't be assumed to override a lender's published income policy.

What strengthens a locum application in practice

None of the following is a guarantee, but each addresses a real underwriting concern:

• Keep timesheets and remittances organised. Because locum income often comes from multiple sources rather than one contract, the paperwork trail matters more than it would for a single-contract day-rate applicant. Consistent, dated records showing a regular pattern of sessions or shifts make it far easier for an underwriter to build an average.
• Build a track record before applying, where you can. Both confirmed locum policies above sit on a six-month minimum. If you're newly locum and not in a rush, waiting until you clear that threshold — and can evidence it — opens up more of the panel than applying in month two or three. See our contract history and gaps guide for how lenders generally treat shorter or broken histories. If you're in your first year of any kind of contracting or locum work, our first-time contractor guide covers the wider history question in more depth.
• An NHS pension is a point in your favour. It's not a lending requirement, but ongoing NHS pension contributions are a visible, verifiable signal of continuous engagement with the NHS system, which can support the income-continuity picture an underwriter is trying to build — particularly useful if your locum work is otherwise fragmented across trusts or agencies.
• Ask before you apply, not after. Because so much of locum treatment sits outside published criteria, a direct conversation with the lender (or a broker who works with medical professionals regularly) about how your specific income pattern will be assessed is worth more than assuming a day-rate contractor calculation applies to you.

Where locum income sits alongside other contractor routes

If part of your income also comes from a substantive contract post — for example a fixed-term NHS post alongside locum sessions, or your locum work is paid through your own limited company — it's worth reading how those routes work separately, since a lender may end up assessing different parts of your income under different policies:

• Fixed-term contract mortgages if part of your work is a contract with a stated salary and end date.
• Limited company contractor mortgages if your locum work is invoiced through your own Ltd company.
• How lenders turn a day rate into a mortgage for the general annualisation method — useful background even though, as above, it may not be the policy actually applied to your locum income.

Our lender criteria tables hold the verified detail we can confirm for contractor and self-employed income routes generally; where locum-specific treatment isn't separately published, we've noted that rather than guessing. The affordability check can give you a general sense of borrowing capacity once you have an income figure to work from — it doesn't apply lender-specific locum rules, so treat it as a starting point rather than a quote.

Locum-specific policy detail (Halifax and Accord) verified against published intermediary criteria as of 13 July 2026; treatment for other lenders and other clinical professions is not separately confirmed in published criteria and should be checked directly. Criteria change frequently. Information, not advice — this article doesn't constitute a recommendation to use any particular lender, and you should confirm current terms with the lender or a whole-of-market broker before applying.