Business Tax Changes in 2026 Explained: How They Impact Your Next Finance Application in the UK

Tax and commercial finance are usually discussed as two separate subjects.

One belongs with the accountant. The other belongs with the lender.

In practice, they are closely connected.

A change in tax can alter cash flow. Cash flow affects debt serviceability. And debt serviceability influences how much a lender is prepared to advance, at what price, and on what terms.

For UK businesses considering borrowing in 2026 and beyond, understanding that connection has become increasingly important.

The question is not simply:

“Will my business pay more or less tax?”

From a finance perspective, the question is:

“What will these changes do to the cash available to service new borrowing?”

What changed for businesses in 2026?

Some of the most important tax changes affecting businesses in 2026 were actually announced before the start of the year.

From 6 April 2025, the rate of employer National Insurance contributions increased from 13.8% to 15%, while the threshold at which employers begin paying NICs fell from £9,100 to £5,000. For labour-intensive businesses, that represented a meaningful increase in employment costs.

From April 2026, the National Living Wage also increased to £12.71 an hour for workers aged 21 and over.

At the same time, Corporation Tax remains at 25% for companies with profits above £250,000, with the 19% small profits rate applying at £50,000 or below and marginal relief between those thresholds. The Government's Corporate Tax Roadmap has committed to capping the main rate at 25% for the duration of the Parliament.

None of these measures tells us whether an individual business can borrow.

But together they influence the numbers lenders are looking at.

Lenders care about what is left after the costs

A business might have turnover of £10 million and appear considerably stronger than one turning over £3 million.

That does not necessarily mean it can support more debt.

Lenders are interested in what happens underneath turnover.

What are the margins?

How predictable are earnings?

What existing debt needs servicing?

How much working capital does the business consume?

And what happens to cash flow when costs increase?

Tax belongs within that wider assessment.

If higher employment costs reduce free cash flow by £100,000 a year, that £100,000 is no longer available to service borrowing, fund investment or provide headroom when trading conditions become difficult.

For a lender, that matters.

Employer National Insurance can affect affordability

The employer NIC changes are particularly relevant because they affect businesses differently.

A company with relatively few, highly paid employees may experience one level of impact.

A business employing hundreds of people across hospitality, care, construction, retail or other labour-intensive sectors may experience something considerably more substantial.

When assessing a finance application, lenders will want to know whether increased employment costs have already been absorbed into the company's forecasts.

Simply presenting last year's accounts may therefore be insufficient.

Historical accounts tell a lender what the business was.

Management information and forecasts help demonstrate what it is becoming.

That distinction becomes particularly important after a material change in the cost base.

Investment allowances can change the calculation in the other direction

Not every tax measure creates additional pressure.

The UK continues to offer significant incentives for qualifying business investment.

Full expensing allows companies to deduct 100% of the cost of qualifying new plant and machinery from taxable profits, while the 50% first-year allowance remains available for certain special-rate assets. The Annual Investment Allowance also provides 100% relief on qualifying plant and machinery expenditure up to £1 million.

For businesses investing heavily in equipment, these allowances can materially affect the economics of a purchase.

And that can influence financing decisions.

Tax relief does not automatically mean finance approval

This distinction is important.

Suppose a manufacturing business wants to purchase £1 million of new machinery.

The availability of capital allowances may improve the tax efficiency of that investment.

But the lender still needs to answer a different question:

Can the business comfortably afford the finance?

Tax relief can strengthen cash flow, but it does not replace cash flow.

A lender will still examine profitability, existing commitments, trading history, management experience and the expected commercial benefit of the equipment.

This is why investment decisions should ideally be considered from both perspectives.

Your accountant assesses the tax treatment.

Your finance adviser considers how the investment can be funded.

The two conversations should support each other.

What happens when tax uncertainty enters the picture?

Businesses dislike uncertainty.

Lenders dislike it even more.

Imagine a consultancy planning to borrow £750,000 to open another office and recruit a new team.

Current trading supports the loan.

But management also expects employment costs and other liabilities to increase materially over the following year.

Does the business borrow now?

Possibly.

But the sensible approach is to model what the debt looks like after those costs have increased.

If the facility remains comfortably affordable, the argument for proceeding becomes stronger.

If the loan only works under today's cost structure, waiting or reducing the borrowing requirement may be the better decision.

Commercial finance should not rely on everything going perfectly.

Stress testing is becoming increasingly important

This is where lenders' thinking and business owners' thinking sometimes diverge.

The borrower naturally presents the expected case.

The lender spends much of its time considering the downside case.

What if revenue is 10% lower?

What if wages increase?

What if margins contract?

What if interest costs remain elevated?

What if customers take longer to pay?

And what happens when tax liabilities fall due at the same time?

A business that can answer those questions convincingly becomes considerably easier to lend to.

Corporation Tax affects more than the tax bill

For incorporated businesses, Corporation Tax also needs to be considered when projecting available cash.

A profitable business may report healthy earnings but still face substantial tax payments that reduce liquidity at particular points during the year.

This is particularly relevant for businesses experiencing rapid growth.

Growth can create an unusual situation where the company is becoming more profitable while simultaneously feeling more cash constrained.

More stock is required.

More employees are recruited.

Customers may pay after 30, 60 or 90 days.

Tax liabilities increase.

And capital expenditure may rise at the same time.

A lender needs to understand that entire cash cycle.

VAT can create similar pressure

VAT is another area where accounting profit and available cash can diverge.

Businesses collect VAT that ultimately belongs to HMRC.

If that cash becomes absorbed into day-to-day operations, the eventual VAT payment can create a sudden liquidity requirement.

From a lender's perspective, repeated reliance on borrowing simply to meet predictable tax liabilities may raise questions about underlying working capital management.

That does not mean tax funding is always inappropriate.

Short-term facilities can have a perfectly legitimate role.

But recurring tax pressure may indicate that a more structural working capital solution is required.

How do tax changes affect different types of commercial finance?

The effect depends on what you are trying to borrow.

For a commercial mortgage, lenders will focus on whether the business can continue servicing property debt after tax and operating costs.

For asset finance, the lender will consider whether the equipment is affordable and whether the investment strengthens the underlying business.

For working capital finance, changes to tax liabilities can directly influence how much liquidity the company needs throughout the year.

For acquisition finance, the tax position of both buyer and target may affect post-transaction cash flow and therefore the amount of debt the combined business can safely support.

And for larger corporate facilities, lenders may run several scenarios before determining acceptable leverage.

There is no single "tax adjustment" applied to every loan.

It depends on how the tax change affects the specific borrower.

Strong businesses should show the impact before the lender asks

One of the most effective ways to strengthen a commercial finance application is to anticipate the obvious credit questions.

If employer NIC has materially increased your payroll costs, quantify it.

If higher wages have been offset by price increases or productivity improvements, demonstrate that.

If capital allowances improve the economics of an equipment investment, show how.

If a future tax payment creates a temporary cash flow dip, explain how it will be managed.

Do not make the lender discover the issue.

Present the issue alongside the answer.

That creates a very different credit conversation.

Your accountant and finance broker should not work in isolation

This is particularly important when borrowing substantial amounts.

Tax structuring can affect the financing structure, while the financing structure can create tax consequences of its own.

A finance broker is not a substitute for tax advice, and an accountant is not necessarily there to identify the most appropriate lender.

The strongest transactions often involve both advisers working from the same numbers and the same business plan.

That avoids a situation where a funding proposal is constructed around assumptions that later change once tax advice is obtained.

Should you delay a finance application because tax rules might change?

Not automatically.

Waiting for complete certainty can mean waiting indefinitely.

Governments change policy. Budgets change assumptions. Markets move.

The more useful approach is to understand which changes are already confirmed, which are proposals and which are merely speculation.

Confirmed changes can be incorporated into forecasts.

Potential changes can be stress-tested.

Speculation should not normally determine a major commercial decision on its own.

The objective is not to predict every future tax decision.

It is to ensure the borrowing remains sensible across a reasonable range of outcomes.

A good finance application should already reflect 2026

If you are applying for commercial finance in 2026 using historic accounts alone, you may be showing the lender an incomplete picture.

The cost environment has changed.

A stronger application combines historic performance with current management accounts, realistic forecasts and a clear explanation of how tax, wage and other cost changes affect future cash flow.

That is particularly important for businesses seeking larger facilities.

The lender does not expect the future to be perfectly predictable.

It does expect management to understand the risks.

Tax changes don't decide whether you can borrow. Your response to them might.

A tax increase does not automatically make a business unfinanceable.

Equally, a generous allowance does not automatically make a transaction bankable.

What matters is how those changes flow through the business.

Strong management teams understand the effect, adapt their forecasts and demonstrate sufficient headroom to continue servicing debt.

That is ultimately what lenders want to see.

At Otium Partners, we work with businesses across the UK to structure commercial finance applications and present transactions to lenders in a way that reflects the current financial position of the business — not simply last year's accounts.

If tax or cost changes have affected your plans to borrow, invest or expand and you want to understand what that means for your funding options, contact us at pa@otiumpartners.com.