Business funding for engineering firms

An engineering firm borrows to carry the cost of design and development until a customer pays a milestone or HM Revenue and Customs pays an R&D tax credit, and to buy test and production equipment. Lenders look closely at your contracts, your customers and the claims you expect, because much of the firm’s value sits in its people and know-how.

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Where the money goes in an engineering business

Engineering firms spend on salaries first. Design engineers, technicians and project managers are paid every month, while a customer on a fixed-price contract pays at milestones such as design approval, factory acceptance and site commissioning. Between milestones the cost builds up as work in progress, and a late drawing approval or a site that is not ready pushes the payment back while the salaries keep going out.

The second call is equipment: test rigs, measuring equipment, machining centres, simulation software and the workstations that run it. Some of it is general-purpose and holds its value. Some is built for one project and is worth little afterwards, and that decides what a lender will lend against.

The third is development of the firm’s own products and processes. That is where R&D grants, Innovate UK funding and R&D tax relief come in, and where equity investors appear for firms building something with a large market.

R&D tax relief for engineering work

Engineering projects that seek an advance in science or technology by resolving technical uncertainty can qualify for R&D tax relief. For accounting periods beginning on or after 1 April 2024, the merged R&D expenditure credit gives a taxable credit of 20% of qualifying costs such as staff time, consumables and software. The payable amount is capped at £20,000 plus 300% of the tax and National Insurance on the company’s payroll for the period.

A loss-making small or medium-sized company whose qualifying R&D spending is at least 30% of its total spending can claim enhanced R&D intensive support instead: an extra 86% deduction and a payable credit worth up to 14.5% of the surrenderable loss. Every new claim needs an additional information form, sent no later than the company tax return, or the claim is not accepted. The Budget on 28 October 2026 announced that the claim notification form goes from 1 April 2027 and the additional information form will be simplified from autumn 2027.

20%
The rate of the merged R&D expenditure credit for accounting periods beginning on or after 1 April 2024. The credit is taxable. Source: gov.uk, checked 3 November 2026.

Borrowing against an R&D claim

Illustrative example

An engineering company spent £250,000 on qualifying R&D in its last accounting period and expects a merged scheme credit. It borrows against the claim before HM Revenue and Customs pays, at an assumed advance of 70% of the expected credit and an assumed charge of 2% a month, repaid after six months when the credit arrives.

Qualifying R&D spending
£250,000
Expected credit at 20%, before tax
£50,000
Advance at the assumed 70%
£35,000
Charge at the assumed 2% a month for six months
£4,200
Left from the credit after repaying the advance and the charge
£10,800

If HM Revenue and Customs opens an enquiry into the claim, the advance stays outstanding and the charge keeps running until it is settled. A lender reads the claim, and asks who prepared it, before it lends. R&D tax credit loans sets out how these facilities work.

Milestone contracts and performance bonds

On a fixed-price project the contract decides your cash flow. Front-loaded milestones, an advance payment on order and stage payments tied to dates you control all reduce what you need to borrow. Payment only on final acceptance, a percentage held until the warranty ends and damages for late delivery all increase it. Negotiate the payment schedule as hard as the price.

Larger customers may ask for an advance payment guarantee or a performance bond from a bank or surety. The provider takes a counter-indemnity from the company, sometimes backed by the directors, and the bond uses up credit that could otherwise fund working capital. The October 2026 Budget announced a new UK Export Finance guarantee, delivered with the British Business Bank, for smaller firms that export; export finance covers what exists today.

What lenders check on an engineering firm

Customers and contracts

Who you work for, the share of turnover each customer takes, and the payment, retention and damages terms in your main contracts.

Work in progress

How you value part-finished projects, how often projects overrun, and whether cost to complete is tracked job by job.

People and know-how

Who holds the key skills and customer relationships, and what happens if they leave. Key person cover answers part of that.

Two cleaners loading a vacuum into their van

Equipment and premises as security

General-purpose machine tools, measuring equipment and vehicles can be funded on plant and machinery finance or hire purchase, with the asset as security. New main pool plant bought by a company qualifies for full expensing. Bespoke rigs and fixtures are harder to fund because they have little resale value, so a lender may want other security or a personal guarantee alongside.

A firm that owns its workshop can borrow against it with a commercial mortgage, or a director’s pension can own it: a pension buying commercial property lets the company pay its rent into the pension. Small and medium-sized engineering businesses with manufacturing premises in England can also apply to the Made Smarter adoption programme for match-funded grants of up to £20,000 towards digital hardware and software, depending on the region.

Products for engineering firms

A company whose profits come from patented inventions can elect into the Patent Box, which taxes the relevant profits at 10%.

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The monthly repayment on a business loan, the interest over the term and the total you repay with the arrangement fee.

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Questions people ask

Can I borrow against an R&D tax credit?

Yes. Specialist lenders advance part of an expected R&D credit, before or after the claim is filed, and are repaid when HM Revenue and Customs pays. The advance and charges depend on the lender, the size of the claim and who prepared it. If the claim is reduced or delayed by an enquiry, you still owe the lender, so a well-supported claim matters more than the size of the advance.

What is enhanced R&D intensive support?

It is the R&D relief for loss-making small and medium-sized companies whose qualifying R&D spending is at least 30% of their total spending, for accounting periods beginning on or after 1 April 2024. It gives an extra 86% deduction on qualifying costs and a payable tax credit worth up to 14.5% of the surrenderable loss. Companies that do not qualify claim the merged scheme credit at 20%.

Do I have to send anything before an R&D claim?

Every new claim needs an additional information form, sent no later than the company tax return, or the claim is not accepted. Some companies also need to send a claim notification form. The Budget on 28 October 2026 announced that the notification form will be removed from 1 April 2027 and the additional information form simplified from autumn 2027.

Can an engineering firm get a Made Smarter grant?

The Made Smarter adoption programme is open to small and medium-sized manufacturing and engineering businesses with manufacturing premises in England. It is delivered regionally, and the regional programmes offer advice, a digital action plan and match-funded grants of up to £20,000 towards hardware and software, depending on the region. What is available depends on the region your main site is in.

Finance is subject to status and to the lender’s terms. A personal guarantee makes you liable for the company’s debt if it does not repay, and it can be enforced against your own assets, including your home. Nothing here is a personal recommendation.

Funding by sector

R&D tax credit loans

A loan against the R&D tax relief your company expects to receive, repaid when the claim is paid.

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Research and development grants

R&D grants, R&D tax relief, and how one affects the other since April 2024.

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Plant and machinery finance

Plant and machinery finance pays for excavators, tractors and machine tools, new or used, over their working life.

Read more →

Intellectual property finance

Borrowing secured on patents, software, trade marks and the income they earn.

Read more →
All business funding

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Funding searches run on Swoop’s platform. Swoop Finance Limited is a credit broker and not a lender, and is authorised and regulated by the Financial Conduct Authority (FRN 936513). Buzz Accounting Ltd introduces businesses to Swoop and may receive a fee from Swoop when funding is arranged. Business funding is separate from the financial advice Equity & General Financial Services Limited gives through this website. Finance is subject to status, and a lender may ask a director for a personal guarantee.

Cover for a personal guarantee

If a lender asks you to guarantee the company’s borrowing, our advisers can advise on life cover for that debt.

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