What Is Adjusted Net Income?
Adjusted Net Income (ANI) is a specific tax figure defined in UK legislation. In simple terms, it is your total taxable income after certain deductions — mainly pension contributions and Gift Aid donations — have been taken off.
It sounds straightforward, but the catch is that ANI is not the same as your salary. It is not even the same as your taxable income for standard income tax purposes. It is its own separate calculation, and HMRC uses it to make some very consequential decisions about your finances.
According to HMRC’s guidance (updated May 2025), your adjusted net income determines:
- Whether your Personal Allowance gets reduced — this kicks in when ANI goes above £100,000
- Whether you owe the High Income Child Benefit Charge — triggered at £60,000
- Whether you qualify for Tax-Free Childcare — you lose it completely if ANI exceeds £100,000
- How the Married Couple’s Allowance is calculated, where it applies
The reason this matters so much is that reducing your ANI — even by a few thousand pounds — can completely change which side of these thresholds you sit on. And that can mean the difference between keeping or losing benefits worth thousands of pounds a year.
How Is Adjusted Net Income Calculated?
HMRC uses a four-step process. Let us walk through each one clearly.
Step 1 — Add Up All Your Taxable Income
Start by pulling together every source of income for the tax year:
- Your salary, bonuses, and any taxable benefits from your employer
- Self-employment profits
- Rental income (after allowable expenses)
- Savings interest above your Personal Savings Allowance
- Dividend income above the £500 Dividend Allowance (2025/26)
- Pension income
- Anything else that is taxable
From this total, subtract any trading losses or other allowable reliefs. What remains is called your net income — this is your starting point.
Step 2 — Deduct Your Grossed-Up Gift Aid Donations
If you donate to charity through Gift Aid, you need to gross up the donation before deducting it. You do this by multiplying what you actually paid by 1.25.
Example: You donate £800 through Gift Aid. Grossed up, that becomes £1,000 (£800 × 1.25). You deduct £1,000 from your net income.
This reflects the basic rate tax relief that HMRC adds to your donation behind the scenes.
Step 3 — Deduct Your Grossed-Up Pension Contributions
This step depends on which type of pension scheme you are in:
- Relief at source schemes (personal pensions, most SIPPs): Gross up your contribution by multiplying by 1.25, then deduct the full gross amount.
- Net pay arrangement (many workplace pensions): Your contributions come out of your salary before tax, so ANI is already reduced automatically — no further adjustment needed.
- Salary sacrifice: Reduces your employment income directly, so ANI falls at source.
Example: You pay £4,000 into a personal pension. HMRC adds £1,000 in relief, making the gross contribution £5,000. You deduct £5,000 from your net income.
Step 4 — Your Result Is Your Adjusted Net Income
Put it all together:
ANI = Net Income – Grossed-Up Gift Aid – Gross Pension Contributions (relief at source)
Worked Example: Calculating Adjusted Net Income
| Item | Amount |
|---|---|
| Employment salary | £75,000 |
| Rental income (net) | £8,000 |
| Savings interest above PSA | £500 |
| Total Net Income | £83,500 |
| Less: Gift Aid (£400 × 1.25) | –£500 |
| Less: Personal pension (£4,000 × 1.25) | –£5,000 |
| Adjusted Net Income | £78,000 |
At £78,000, this person keeps their full Personal Allowance — but they are still above the £60,000 HICBC threshold. If they increased their pension contributions by another £12,800 net (£16,000 grossed up), their ANI would drop below £60,000 and the Child Benefit charge disappears entirely. That is a real, actionable saving.
The Personal Allowance Taper: The 60% Tax Trap Nobody Warns You About
This is where things get genuinely painful for higher earners.
For 2025/26, everyone gets a standard Personal Allowance of £12,570 — the amount you can earn completely tax-free. But once your ANI goes above £100,000, HMRC starts clawing it back. For every £2 you earn over £100,000, you lose £1 of your allowance.
| Adjusted Net Income | Personal Allowance Remaining | Effective Marginal Rate |
|---|---|---|
| £100,000 | £12,570 (full) | 40% |
| £106,000 | £9,570 | 60% |
| £112,570 | £6,285 | 60% |
| £119,000 | £3,070 | 60% |
| £125,140 | £0 | 45% above this |
The income band between £100,000 and £125,140 carries an effective tax rate of 60%. That is not a typo. For every extra pound you earn in that range, you pay 40p in Income Tax and lose 50p of Personal Allowance — which itself costs you another 20p in tax. That comes to 60p in every pound gone.
Ironically, once you are earning above £125,140 and your allowance has been wiped out entirely, you drop back to a 45% rate. So earning more can actually mean a lower marginal rate than earning slightly less. The only sensible response is to make sure your ANI does not sit inside that band if you can possibly help it.
High Income Child Benefit Charge (HICBC)
Since April 2024, the HICBC threshold has moved up from £50,000 to £60,000. Here is how it currently works:
- Below £60,000 ANI — you keep all your Child Benefit, no charge applies
- £60,000–£80,000 ANI — you repay 1% of Child Benefit for every £200 above £60,000
- £80,000+ ANI — the full amount is clawed back
For 2025/26, Child Benefit pays £26.05 per week for a first child (£1,354.60 a year) and £17.25 for each additional child. A family with two children receives around £2,251.60 annually.
If your ANI sits at, say, £65,000, you do not lose everything — but you are repaying a notable chunk. And if it is above £80,000, you are handing it all back. A targeted pension contribution to bring ANI below £60,000 can reclaim that entire amount. For families, this is often the most motivating reason to take pension planning seriously.
Tax-Free Childcare: The Cliff Edge You Cannot Afford to Miss
Unlike the HICBC, which tapers gradually, Tax-Free Childcare has a hard cut-off. The government’s scheme adds £2 for every £8 you pay in, up to £2,000 per child per year. It is a genuinely useful benefit — but if either parent has an ANI over £100,000, you lose it completely and immediately.
There is no taper. One pound over the threshold and the whole benefit is gone.
If you have two children, that could mean losing £4,000 per year in government top-ups. For a parent with ANI of, say, £101,000, an additional pension contribution of just over £1,000 (net) could bring ANI back to £99,999 — and restore the full childcare benefit. That is an extraordinary return on a relatively small move.
How to Reduce Your Adjusted Net Income Legally
The good news is that there are clear, legitimate ways to bring your ANI down. None of these are loopholes — they are built directly into the tax system.
1. Pension Contributions
This is the most powerful tool available. Whether through a personal pension (relief at source) or salary sacrifice, pension contributions directly reduce your ANI. The strategy is to calculate exactly how much you need to contribute to fall below the relevant threshold — whether that is £60,000, £100,000, or £125,140.
2. Gift Aid Donations
Charitable donations under Gift Aid cost you less than they appear to. For someone in the 60% taper zone, a net £1,000 Gift Aid donation effectively costs only £400 in real terms once you factor in the resulting tax saving. If you already give to charity, making sure it goes through Gift Aid rather than a bank transfer is an easy win.
3. Salary Sacrifice
Salary sacrifice arrangements — for pensions, electric vehicles, cycle-to-work schemes, or childcare vouchers — reduce your gross employment income directly. Because ANI is based on your actual employment income, salary sacrifice is one of the cleanest ways to reduce it.
4. Timing Your Income
For self-employed people and business owners, it can sometimes make sense to consider when income falls within a tax year. If you are close to a key threshold, pulling forward expenses or deferring income to the next tax year might keep ANI on the right side of the line. This requires careful planning, ideally with a professional accountant before 5 April.
Frequently Asked Questions
Is adjusted net income the same as my salary?
No. ANI includes all your taxable income from every source — salary, rental income, dividends, savings interest, self-employment profits — and then reduces that figure by grossed-up pension contributions and Gift Aid donations. Your salary is just one piece of the puzzle.
How do I find my adjusted net income?
If you complete a Self Assessment return, ANI appears in your tax computation. You can also view your tax calculation through your HMRC Personal Tax Account online. An accountant can calculate it for you as part of your annual return.
Does my workplace pension reduce my adjusted net income?
It depends on the type of scheme. If your employer uses a net pay arrangement, your contributions come out before tax, so ANI is already reduced. If your scheme uses relief at source, you need to gross up the contributions and deduct them in your calculation. If you use salary sacrifice, it reduces your employment income directly. Check with your employer or payslip if you are unsure.
What if my ANI is just £1 over £100,000?
You immediately start losing Personal Allowance and lose eligibility for Tax-Free Childcare. Even a relatively small pension contribution before 5 April can bring ANI back below the threshold and preserve both benefits. If your income is hovering near £100,000, it is worth reviewing your position before the tax year ends.
Can I reduce ANI if I am employed and cannot do salary sacrifice?
Yes. A personal pension (SIPP or other relief at source scheme) achieves the same result and is available to anyone with UK earnings, regardless of their employer’s pension arrangements.