Why IT contractors get better treatment than other contractors

Contractor mortgage lending in the UK grew up around IT. When Halifax introduced contract-based underwriting, it was for IT contractors only; it opened the policy to other industries in 2013, but with a higher bar. The logic was that IT contracting was a mature, well-paid, well-documented market — a developer or infrastructure engineer on a rolling six-month contract with a bank was a better risk than the historic-accounts method suggested — and that logic has stuck. In 2026, most high-street lenders will underwrite an IT contractor on the current contract’s day rate, and several have explicit carve-outs for the tech sector that don’t apply to, say, a contract project manager in construction.

The practical consequence is that “can an IT contractor get a mortgage?” has a plain yes for an answer, and the interesting question is which lender’s version of “yes” gives you the most. For how contract-based lending works in general — the annualisation formula, IR35 basics, how much you can borrow across all contractor types — see our contractor mortgage guide. This page is about what’s different when the contract is in tech.

The Halifax rule, in detail

Halifax’s published intermediary criteria are the reference point brokers use for IT contractors, and it’s the lender behind the most-searched version of this question. What its criteria say, as of 2026:

• Income = day rate × 5 days × 46 weeks (or × actual days if you contract fewer than five). Hourly contracts use hourly rate × 7 × 5 × 46.
• IT contractors are treated as employed regardless of tax arrangements — limited company, umbrella, inside or outside IR35 — so no accounts or SA302s are required, provided you meet the contracting-history test.
• Non-IT contractors only get that employed treatment if they earn more than £500 a day or £75,000 a year; below that, they’re assessed as self-employed on accounts. This is the carve-out that makes IT different: a £350-a-day junior developer is underwritten on contract; a £350-a-day non-IT contractor is not.
• History: either 12 months’ continuous contracting with at least 6 months left on the current contract, or 2 years’ continuous work in the same field (permanent employment counts), in which case you can apply from the first day of your first contract.
• Umbrella and inside IR35: income is the lower of the gross contract value and what your payslips or bank statements actually show — which is where the trap in the IR35 section comes from.
• Gaps: gaps between contracts are acceptable if explained; brokers generally work to six to eight weeks as the comfortable maximum without a written explanation.

Other lenders have similar policies with different edges: some use 48 weeks rather than 46, some require 3 or 6 months left on the contract, some cap contract-based lending at a lower loan-to-value, and some still route contractors below a rate threshold to accounts. Halifax is not the only option and not always the best one — but its IT-specific treatment is the reason it comes up so often. nextmove is not affiliated with Halifax; our Halifax review covers the lender more generally.

What your day rate is worth to a lender

Using the × 5 × 46 convention, here’s how typical IT contract rates translate into assessed income and borrowing. The last column shows the same person assessed instead on a “sensible” limited-company salary-and-dividend draw — because that is the comparison that decides whether a contractor can buy at all.

Read the right-hand column against the £500 row. The same contractor, same money, is worth £517,500 of borrowing to a lender that uses the contract and £236,565 to one that uses the company accounts — a gap of about £281,000. Most IT contractors run a limited company and draw a low salary plus dividends for tax efficiency, leaving profit in the company; a lender that underwrites on drawings punishes exactly that. If your accountant has set you up that way, contract-based lenders are the ones to approach, and our company director guide explains which lenders count retained profit if you’d rather go the accounts route. A 48-week lender lifts the £500 row to £120,000 and £540,000 at 4.5×; the 46-week figure is the conservative planning number.

At these income levels, the multiple isn’t always the limit. Annualised income of £115,000 makes you a higher-rate taxpayer with a take-home well below the gross suggests, and lenders’ affordability models test the monthly payment against real net income — how much can I borrow? covers how the multiple and the affordability test interact. Some lenders also offer 5× or 5.5× to earners above £75,000, which most IT contractors on contract-based assessment clear comfortably.

Inside IR35 and umbrella pay: the quiet £70k cut

Since the off-payroll rules moved to the private sector in April 2021, a large share of IT contractors — particularly at banks, insurers and large corporates — work inside IR35 through an umbrella company. Lenders accept this, and Halifax’s “employed regardless of tax arrangements” line means an inside-IR35 IT contractor is still assessed on contract. But there’s a catch in the detail: income is the lower of the contract value and what your payslips show, and an umbrella payslip shows a lot less than the contract.

Take a £500-a-day contract, £115,000 a year on the 46-week basis. The umbrella deducts employer’s National Insurance at 15% (above the small secondary threshold), the 0.5% apprenticeship levy and its own margin before your gross pay is calculated. Working through the arithmetic, the gross pay on your payslip comes out at roughly £99,000, not £115,000. A lender applying “lower of” assesses you on £99,000 — about £446,500 at 4.5× instead of £517,500, a cut of around £70,000 — even though your client is paying the full £115,000 for your time.

Two ways round it. Some lenders will use the assignment rate on the umbrella’s own reconciliation statement (the “assignment rate” or “contract rate” line, before employment costs) if the contract confirms it — a broker will know which. Alternatively, if you have a choice of engagement, an outside-IR35 contract through your own limited company avoids the deduction entirely for lending purposes. Umbrella company mortgages goes through the payslip mechanics, and if your contract is inside IR35 because it’s a fixed-term role rather than a true contract, fixed-term contract mortgages is the closer fit.

IT-specific situations lenders ask about

The tech contract market has its own rhythms, and lenders have learned to ask about them. The recurring ones:

Gaps between contracts

Tech contracting in 2023–25 saw longer gaps than the decade before as corporate hiring slowed, and lenders noticed. A gap of a few weeks between contracts is normal and expected. Beyond six to eight weeks, most lenders want a written explanation — a project ending, a deliberate break, a move — and evidence of the new contract. A longer gap that ends with a new contract in the same field at a similar rate is usually fine; a pattern of long gaps starts to push you toward the self-employed route. Employment gaps and mortgages covers how much explanation each length needs. An eight-week unpaid gap on £500 a day is £20,000 of income that never arrived, and it’s worth being ready to show that your reserves covered it.

Rate changes between contracts

Lenders use the current contract’s rate, so a contractor moving from £650 to £500 a day is assessed on £500 — and one moving up is assessed on the new higher rate immediately, with no averaging. That’s an advantage over the accounts route, where a rate rise takes two years to feed through. Where it cuts the other way is if your current contract is a short, lower-rate stopgap: some brokers time the application for the next contract.

Security-cleared contracts

SC- and DV-cleared roles for government and defence clients are often longer and more stable than commercial contracts, and lenders treat them well. The frequent problem is documentary: a cleared contract may not be shareable in full. A redacted contract or a letter from the agency confirming rate, days and term generally satisfies lenders, but it’s worth raising before the application rather than after a document request.

Overseas clients and foreign-currency pay

Remote contracting for a US or EU client, paid in dollars or euros, is now common in tech and is the situation most likely to surprise an IT contractor. Under the rules that came in with the Mortgage Credit Directive, a lender must monitor and warn on foreign-currency mortgages, and many mainstream lenders simply won’t lend against income earned in a foreign currency — or will accept it only with a haircut of 10–25% for exchange-rate risk and only for certain currencies. If you’re paid in sterling by a UK umbrella or agency for an overseas end client, you’re usually fine; if the money lands in your account in dollars, you need a lender with a foreign-currency policy. Our expat mortgage guide covers the currency rules in more detail even for UK residents.

Multiple concurrent contracts

Some IT contractors run two part-time engagements at once. Lenders vary: some add them together if both contracts are documented, some take only the larger, some treat the combination as self-employment. If both contracts are real, long-standing and paid through the same company, the accounts route can occasionally count more than the contract route — one of the few cases where that’s true.

Documents an IT contractor needs

Contract-based lending is quicker than the accounts route precisely because the document list is short. For most lenders it’s:

• Your current contract, showing day rate, days per week, start and end dates, and (ideally) the client and agency — with at least the lender’s minimum term remaining, or a written extension.
• A CV covering at least the last two years without unexplained gaps, showing continuity in the same field. This carries more weight than contractors expect: it’s the lender’s evidence for the “two years in the same line of work” test.
• Three months’ bank statements for the account the contract is paid into (personal and, if relevant, business).
• Payslips if you’re paid through an umbrella — usually three months — plus the umbrella’s reconciliation or assignment-rate statement if the broker is using the contract value.
• Proof of previous contracts for the 12-month continuity route, if you’re not relying on two years in the field.

What you generally don’t need on the contract route: two years of company accounts, SA302s or tax-year overviews. If a lender asks for those, it’s assessing you as self-employed, and it’s worth asking your broker whether that’s the right lender for your profile. How to apply for a mortgage covers the general process, and a decision in principle based on contract income is a sensible first step before you offer on anything.

First-time buyer on your first contract

A common IT career shape is three or four years in a permanent developer or engineering role, then a move into contracting at roughly double the day-equivalent pay — and the question is whether a lender will lend on the new contract rate straight away. Under the two-years-in-the-same-field test, the answer is yes: a developer with two years’ permanent experience who takes a £450-a-day contract can be assessed on £103,500 from day one, not on the £45,000 salary they just left. Not every lender applies this; some want 12 months of contracting first, which is where the new-job mortgage rules overlap with this page.

First-time buyers otherwise have the usual advantages — stamp duty relief up to £500,000 in England, the Lifetime ISA bonus, 5% deposit products — and the first-time buyer guide covers them. One point specific to contractors: lenders sometimes apply a lower maximum loan-to-value to contract-based income, so a 10% deposit widens your options more than it would for a salaried applicant. If you’re buying in one of the tech corridors, our local guides for Cambridge, Reading and Bristol cover local prices against local incomes.

Mortgages for IT contractors: FAQs

Last updated: September 2026. Lender criteria and tax rates as published for 2026/27; subject to change.