A promotion is a major financial event, not just a career milestone. There are several money decisions to make quickly — and a few traps to avoid. This checklist takes you through every financial action to take when you move into a new role.
Before You Accept: Negotiate the Salary
If you’re offered a promotion without a salary discussion, or the salary offered feels low for the new level, this is the moment to negotiate.
A promotion is leverage — the company has made a decision that they want you in this role. They are unlikely to reverse that decision because you professionally countered an offer.
What to research:
- The market rate for the new job title in your location
- What the outgoing person earned (sometimes discoverable through Glassdoor or the team)
- Whether the new role has direct reports, budget responsibility, or client ownership that wasn’t in your previous role
Even a £2,000–£3,000 improvement at this stage compounds through every future annual review. Don’t leave it on the table.
Check Your First Payslip
Your first payslip at the new salary should be scrutinised carefully:
| Item | What to check |
|---|---|
| Gross salary | Matches the agreed new amount (annualised) |
| Tax code | Still correct — if it changed unexpectedly, contact payroll |
| Income tax deducted | Should reflect new pay; may be slightly higher in month one due to catch-up calculations |
| National Insurance | Check you’re on the right letter (usually A or C) |
| Pension contribution | Still at your chosen percentage — promotions can occasionally reset this |
| Any employer pension match | Still applies at the new salary level |
Check Your Tax Thresholds
Has the promotion taken you into the higher rate?
The higher rate income tax threshold for 2026/27 is £50,270. If your new salary is near or above this:
| Old salary | New salary | Effect |
|---|---|---|
| £45,000 | £52,000 | £1,730 of income now taxed at 40% not 20% |
| £48,000 | £55,000 | £4,730 now at higher rate |
| £50,000 | £60,000 | £9,730 at higher rate |
This doesn’t mean the raise isn’t worth it — it absolutely is. But you should factor in the tax drag. The net gain on salary above £50,270 is roughly £580 per £1,000 rather than £720.
Has the promotion taken you over £100,000?
This is the most impactful threshold. Above £100,000, your personal allowance (£12,570 in 2026/27) tapers away at £1 per £2 earned over £100,000. The effective marginal rate between £100,000 and £125,140 is 60%.
Immediate action if you cross £100,000: Consider salary sacrifice pension contributions to bring your adjusted net income below £100,000. This restores your full personal allowance and protects Child Benefit eligibility if you have children.
Increase Your Pension Contributions
A promotion is the ideal time to increase pension contributions because:
- You’ve never received this money yet — no lifestyle impact
- The higher your marginal rate, the more tax relief you receive
- If your employer matches a percentage of salary, a higher base salary means more absolute matching
For higher rate taxpayers: Every £1,000 contributed to pension via salary sacrifice costs you only £600 after 40% tax relief. On top of that, you save 2% NI on contributions above £50,270 — an additional £20 per £1,000.
Action: Log into your pension portal or contact payroll and increase your contribution rate, ideally via salary sacrifice.
Review Your Child Benefit Position
If you have children under 16 (or under 20 in approved education/training) and currently receive Child Benefit, the High Income Child Benefit Charge (HICBC) may now apply:
| Adjusted net income | Child Benefit effect |
|---|---|
| Under £60,000 | No charge — keep all Child Benefit |
| £60,001–£79,999 | Partial charge: 1% per £200 over £60,000 |
| £80,000+ | Full charge — effective repayment of all Child Benefit |
Adjusted net income = gross income minus pension contributions and other qualifying deductions. This means salary sacrifice can reduce your adjusted net income and protect Child Benefit entitlement.
If you now have an adjusted net income over £60,000, you must register for Self Assessment if you haven’t already.
Check Your Student Loan Repayments
If you have a student loan, repayments are calculated as a percentage of income above the repayment threshold:
| Plan | Threshold (2026/27) | Repayment rate |
|---|---|---|
| Plan 1 (pre-2012 England) | £24,990/year | 9% above threshold |
| Plan 2 (post-2012 England) | £27,295/year | 9% above threshold |
| Plan 5 (post-Aug 2023 England) | £25,000/year | 9% above threshold |
| Plan 4 (Scotland) | £31,395/year | 9% above threshold |
| Postgraduate Loan | £21,000/year | 6% above threshold |
A promotion may not change your repayment rate (it stays at 9%) but it will increase the amount deducted monthly. If you’re close to paying off your loan, run the balance numbers — overpaying student loan debt voluntarily may or may not make sense depending on your plan type.
Increase Your ISA Contributions
With a higher salary, consider increasing your monthly ISA contribution:
- Cash ISA if you’re building towards a goal in the next 1–5 years
- Stocks & Shares ISA for longer-term wealth building
The annual ISA allowance is £20,000 per person (2026/27). Any gains or income within an ISA are permanently tax-free, making it especially valuable for higher-rate taxpayers.
If you haven’t yet maxed your ISA, this is the time to do it.
Update Your Protection Insurance
A higher salary means:
- Life insurance: Your income replacement need has increased. Consider whether your existing life cover (or death-in-service) adequately covers your family’s needs.
- Income protection: If you have a policy, it may have been based on your previous salary. Check whether you need to increase the cover amount.
- Critical illness: Not strictly salary-linked, but a good time to review.
Many workplace death-in-service schemes pay a multiple of salary (e.g., 4x). At a higher salary, the payout has also increased — which may or may not be enough.
Update Your Will
If your estate is growing and you don’t have a will, do it now. If you have one, consider whether a significantly higher salary changes your financial picture enough to warrant an update (new assets, different insurance payouts, pension nominations).
Pension nominations should be separate — update your expression of wishes with your pension provider to indicate who you’d want to receive death benefits.
Checklist Summary
| Action | Priority | Done? |
|---|---|---|
| Confirm new gross salary in writing | Immediate | ☐ |
| Negotiate if salary seems low | Before accepting | ☐ |
| Check first payslip carefully | Month 1 | ☐ |
| Increase pension contributions | Month 1 | ☐ |
| Check Child Benefit position | Month 1 | ☐ |
| Review student loan impact | Month 1 | ☐ |
| Register for Self Assessment if £60k+ | Before Oct 5 filing deadline | ☐ |
| Increase ISA contributions | Month 1–2 | ☐ |
| Review life/income protection insurance | Month 2–3 | ☐ |
| Update will / pension nominations | Month 3 | ☐ |
Related Guides
- How to Ask for a Pay Rise — if the promotion salary isn’t what you hoped
- What to Do When You Get a Pay Rise — allocating extra income
- Salary Sacrifice Complete Guide — reducing your tax bill on a higher salary
- Child Benefit and High Income — HICBC in full
- How to Read a Payslip — decoding your new payslip