Adjusted Net Income: How Structuring Saves You Tax

There’s one hidden number that can quietly push up your tax bill: Adjusted Net Income (ANI).

It’s what HMRC uses to determine if you’ll lose some—or all—of your tax-free personal allowance, which is worth £12,570 in the 2025/26 tax year. This allowance is frozen until at least 2027/28.

Once your ANI exceeds £100,000, your personal allowance begins to taper. By the time it hits £125,140, the allowance is fully lost, potentially costing you thousands in tax.

The good news? With the right income structuring, you can avoid crossing these thresholds unnecessarily.

What Exactly Is Adjusted Net Income?

Adjusted Net Income is your total taxable income after deducting specific, HMRC-approved items.

It includes income from:

• Employment (including bonuses and taxable P11D benefits)
• Self-employment
• Dividends
• Rental income
• Interest on savings

Then, certain deductions reduce this figure:

• Gross private pension contributions (relief at source)
• Grossed-up Gift Aid donations
• Allowable trading losses

Note: Contributions to ISAs do not reduce Adjusted Net Income. They are tax-free savings but do not affect income thresholds.

Why Adjusted Net Income Matters

Once your ANI exceeds £100,000, HMRC reduces your personal allowance by £1 for every £2 over the threshold.

• At £110,000, you lose £5,000 of your £12,570 allowance.
• At £125,140, your entire personal allowance disappears.

This creates an effective 60% marginal tax rate between £100,000 and £125,140. Why? Because you’re:

• Paying 40% higher-rate tax, and
• Losing tax-free allowance worth an additional 20%

A Simple Example

Let’s say your total income is £110,000.

• That’s £10,000 above the £100,000 threshold.
• You lose £5,000 of your personal allowance.
• That £5,000 becomes taxable at 40% = £2,000 extra tax.

So on that £10,000 income band, your effective tax rate is 60%.

Other Hidden Thresholds Affected by ANI

Your Adjusted Net Income doesn’t just affect your personal allowance:

Tax-Free Childcare

If any parent in your household has ANI over £100,000, you become ineligible. Even being £1 over the threshold cancels the benefit entirely.

High Income Child Benefit Charge (HICBC)

If you or your partner claim Child Benefit, HICBC applies once ANI exceeds £50,000:

• The charge is 1% of Child Benefit for every £100 over £50,000.
• At £60,000+, the benefit is fully clawed back via your tax return.

This makes managing ANI critical for families with children.

How to Reduce Adjusted Net Income

There are several HMRC-compliant ways to manage ANI and avoid crossing key thresholds.

✅ Pay into a Pension

Pension contributions are one of the most powerful tools for reducing ANI.

Example:

• Income: £110,000
• Pension contribution: £8,000
• HMRC adds £2,000 (20% relief) → total contribution = £10,000
• New ANI: £100,000
• You regain the full personal allowance and save £2,000 in tax

✅ Make Gift Aid Donations

Charitable donations reduce ANI by the grossed-up amount.

Example:

• Income: £102,500 → £2,500 above the limit
• Gift Aid donation: £2,000 (grossed up to £2,500)
• New ANI: £100,000
• You avoid losing £1,250 of personal allowance and save £500 in tax

💡 Bonus: Gift Aid also extends your basic-rate tax band.

✅ Time Your Income

If you’re close to the threshold near the end of the tax year (5 April), consider delaying:

• Bonuses
• Dividends
• Profit distributions

until after 6 April, so they fall into the next tax year.

Always consult with your accountant to avoid breaching HMRC anti-avoidance rules.

✅ Use Salary Sacrifice

Swap part of your salary for:

• Pension contributions
• Ultra-low-emission company car
• Cycle to Work scheme
• Childcare vouchers (if already enrolled)

Salary sacrifice reduces your gross income—and therefore your ANI.

Common Mistakes to Avoid

❌ Leaving it too late – You can’t change ANI retroactively after 5 April.

❌ Not declaring all deductions – Forgetting Gift Aid or pensions can raise your ANI unnecessarily.

❌ Assuming ISAs help – ISA contributions are tax-efficient but don’t reduce your ANI.

❌ Ignoring P11D benefits – These are counted in full toward ANI and can push you over thresholds unexpectedly.

For Company Directors and Business Owners

As a director or shareholder, how and when you pay yourself—salary vs dividends—can significantly impact your ANI.

• A large dividend before 5 April could tip you over £100,000.
• Spreading income across two tax years can keep you below the threshold.

Strategic structuring can help you retain personal allowance and avoid Child Benefit or Tax-Free Childcare losses.

Take Control of Adjusted Net Income

For high earners and business owners, Adjusted Net Income isn’t just a number—it’s a powerful planning lever.

With the right strategy, you can:

• Keep more of your personal allowance
• Avoid the 60% marginal tax trap
• Retain valuable benefits like Child Benefit and Tax-Free Childcare
• Save for retirement tax-efficiently

How Nichols & Co Can Help

At Nichols & Co, we specialise in helping clients:

• Design tax-efficient income strategies
• Plan pension and Gift Aid contributions effectively
• Optimise director remuneration to protect allowances

Want to keep your Adjusted Net Income—and tax bill—under control? Get in touch for tailored advice that fits your circumstances.

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Disclaimer: This article provides general guidance on Adjusted Net Income and income structuring. It is not personalised tax advice. Tax rules may change, and their impact depends on individual circumstances. For tailored advice, speak to a qualified advisor or refer to HMRC’s ANI guidance.