What to do when the shares vest and how to make every tranche count
RSUs are one of the mostvaluable parts of a senior executive’s compensation package. They’re also one of the most poorly managed.
Most executives have no strategy for what happens when the shares vest , which means missing carry-forward opportunities, unexpected pension allowance charges, and wealth sitting in concentrated single-stock exposure with no plan behind it.
This article covers the tax treatment of RSUs in the UK, how vesting income affects the pension annualallowance taper, the carry-forward opportunity that expires every 5 April, andthe four decisions that determine whether each vest builds long-term wealth or quietly disappears.
Your RSUs vested.
The shares appeared in the broker account.
And then for most executives, not much happened.
Some sold immediately and spent the proceeds. Some held the shares with no clear reason to. Some invested in something that seemed sensible at the time. Almost none had a strategy for what the vest actually meant — for their pension, their taxposition, or the bigger picture of when work could become genuinely optional.
For a senior executive receiving £80,000 in RSUs annually over ten years, those vestingevents represent £800,000 in potential wealth before tax. Managed deliberately,a significant portion builds towards the point where work becomes a genuinechoice. Managed without a strategy, opportunities are lost
Shares are spent,taxed inefficiently, or sitting in concentrated single-stock exposure thatcarries more risk than most executives realise.
This articlecovers what actually happens at each vest, the planning opportunity mostexecutives never use, and the four decisions that determine which outcome youget.
What are RSUs and why do they create aplanning problem?
A Restricted Stock Unit is a promise from your employer to give you a set number of companyshares after a vesting period - typically time-based, performance-based, or both. Unlike stock options, there is nothing to buy. When they vest, the shares are yours.
But their arrival creates three things at once: a taxable event, a potential pension planning problem, and a decision about what to do with the proceeds. Most executives are prepared for the first. Almost none are prepared for the second and third.
How are RSUs taxed in the UK?
When RSUs vest,the market value on the vesting date is treated as employment income - typically taxed at 40% or 45% plus NIC. The employer typically sells shares to cover the liability. The after-tax balance arrives in the account.
If shares are held after vesting and increase in value, any gain above the vesting price issubject to capital gains tax. The annual CGT exempt amount is £3,000 for2024/25. Gains above this are taxed at 18% or 24% depending on total income.
The part most executives miss: RSU income is added to income for pension taper purposes. Once adjusted income - salary, bonuses, employer pensioncontributions and RSU vest value combined - exceeds £260,000, the pension annual allowance starts to reduce. Many executives cross this threshold without realising it.
How does RSU vesting affect the pension annual allowance?
The standard pension annual allowance is £60,000 per tax year. For high earners it tapers, reducing by £1 for every £2 of adjusted income above £260,000, down to a minimum of £10,000.
A year with significant RSU vesting can push adjusted income well above that threshold and dramatically reduce the allowance. At £360,000 of adjusted income, the allowance is at the £10,000 floor. If employer contributions are already high, there may be an annual allowance charge to pay on top of the income tax already paid at vesting.
Adjusted income
Below £260,000 = £60,000 Annual allowance
£310,000 = £35,000 Annual allowance
£360,000= £10,000 Annual allowance
Above £360,000 = £10,000 Annual allowance (floor)
The executives who plan around this know their adjusted income position before the vest. Those who don’t risk an unexpected tax charge on top of the income tax already paid.
What is pension carry-forward (and why is it a powerful RSU planning tool?)
Unused pension annual allowance from the previous three tax years can be carried forward and added to the current year’s contribution capacity. The allowance from three years ago drops off permanently at the start of each new tax year whether used or not.
Most executives who have carry-forward available never use it.
Here is what it looks like in practice. An executive with £80,000 in RSUs vesting this tax year, adjusted income of £320,000, and £120,000 of unused carry-forward from years where income was lower:
Annual allowance this year Tapered to approximately £20,000
Carry-forward available £120,000
Total pension contribution capacity £140,000
Pension contribution from RSU proceeds £80,000
Income tax saving at 45% Approximately £36,000
Individual illustrative example. Not a recommendation or typical outcome.
Carry-forward matters most in the years before the taper bites permanently. Once adjusted income consistently exceeds the threshold, the £10,000 floor becomes the annual reality. The window to make large pension contributions using carry-forward from years where income was lower is finite. Most executives I speak to have significant unused carry-forward they didn’t know existed.
Why does concentration risk matter at every vesting event?
Before making any of the four decisions below, one question needs answering first: how much of your financial life is already tied to this company and how comfortableare you with that number?
Most senior executives have more exposure than they realise. RSUs, SAYE schemes, shareoptions and employer pension contributions are all connected to the same company. Viewed in isolation, each looks manageable. Counted together, the concentration is often significant.
The default case for selling at vesting is strong. Selling removes concentration risk and allows you to diversify your wealth. No matter how strong you think a company is having all your wealth tied up with it is rarely a good idea. Think Blockbuster, Blackberry & Toys R Us.
What are the four decisions at every RSU vesting event?
E4 decisions to make at every RSU vesting event
Every vest is a decision. Most executives don’t make them.
Sell or hold? Selling removes concentration risk and creates liquidity. Either is a choice but make sure it is an intentional one.
Pension or ISA? Where carry-forward is available, pension almost always wins. A contribution on RSU could receive income tax relief at 45% or even 60%. An ISA provides no upfront relief but is completely tax-free on the way out. The right answer depends on the specific numbers, your situation and long term plans. A tapered pension allowance may mean ISAs are you main option.
Mortgage overpayment? The right answer depends on your situation. There may be emotional reasons you wish to pay off the mortgage such as feeling of security. Equally investing may generate more long term wealth, understanding the trade offs and modelling can help make this decision
GIA or cash? RSU proceeds sitting in a current account are losing real value. Where pension and ISA allowances are used, a General Investment Account with annual use of the CGT exempt amount could be a good option especially if have a spouse at a lower tax rate.
Before making any of these decisions, one question needs answering first: how much of your financial life is already tied to this company & how comfortable are you with this?
What a deliberate RSU strategy actually produces (based on actual client)
Every RSU vesting event is either a strategic action or a missed opportunity. The difference is a plan.
Dave is 46. Total compensation £280,000. RSUs vesting quarterly. Three old pension pots from previous employers none reviewed, none connected to each other or to the current plan.
Without planning: projected assets approximately £1,000,000.
With a structured RSU strategy, making use of ISAs & paying into a Investment account: projected assets at 60 approximately £2,500,000. Work optional confirmed at 60 if not earlier.
No unusual products. No high-risk strategy. RSU proceeds going to the right place, at the right time, with carry-forward used while it was still available.
The income didn’t change having an actual strategy did.
Individual anonymised example. Not a typical outcome or guarantee. The value of investments can fall as well as rise.
Frequently asked questions: how a financial planner helps with RSU planning
How can a financial planner help me manage my RSUs?
A financial planner coordinates your RSU vesting schedule with your pension carry-forward position, adjusted income, ISA allowances and cashflow model — so that each vesting event is a deliberate decision rather than a reactive one. The carry-forward calculation, the pension taper position, the sell-or-hold question and the deployment of proceeds are all connected to each other and to the bigger picture of when work becomes genuinely optional. Without someone holding that full picture, each vest gets managed in isolation. With it, each vest becomes a step in a deliberate direction.
What is pension carry-forward and how does it relate to RSU planning?
Pension carry-forward allows unused annual allowance from the previous three tax years to be added to the current year’s pension contribution capacity. For senior executives with RSU income pushing adjusted income above the taper threshold in high-vesting years, carry-forward from years where income was lower can significantly increase the amount that can be contributed to pension — and the income tax relief generated. Allowances from three years ago expire oat end of tax year. A financial planner tracks this position continuously and coordinates contributions around vesting schedules before the window closes.
Should I sell my RSUs when they vest?
For most senior executives, the answer is yes for at least some of the RSUs and the reason is concentration risk. RSUs, SAYE schemes, share options and employer pension contributions are all tied to the same company. Holding significant RSU tranches on top of that existing exposure creates a concentration that is often larger than it appears. Selling at vesting removes that risk and creates proceeds that can be deployed strategically — into pension, ISA, or elsewhere depending on the cashflow model. The case for holding should be a considered decision with a specific rationale, not the default position. By selling shares may also be able to take advantage of more tax efficient vehicles like pensions or ISAs
How does RSU vesting affect my pension annual allowance?
RSU vesting income is added to adjusted income for the purposes of the pension annual allowance taper. Once adjusted income exceeds £260,000, the allowance reduces —by £1 for every £2 over the threshold — down to a minimum of £10,000. In a year where significant RSUs vest alongside salary and bonus, adjusted income can cross this threshold by a wide margin, leaving very little pension contribution capacity in that year. Understanding the taper position is vitally important.
What is life-first financial planning for senior executives with RSUs?
Life-first financial planning starts with a clear picture of what a genuinely good life looks like — what the money is actually for — before any financial strategy is discussed. For senior executives with RSU compensation, this means the carry-forward calculation, the pension taper position, and every vesting decision is connected to a specific goal: the Freedom Number — the capital sum, at a specific age, that makes work genuinely optional. The plan is built to serve that life. The RSU strategy is one part of a joined-up picture, not a standalone tax exercise.
The right starting point
If RSUs are vesting and you don’t have a clear strategy for what happens at each event — the Clarity Conversation is the right place to start.
Free. Thirty minutes. No pitch. You leave knowing your carry-forward position, what the strategy should look like, and whether and how I can help.
Book at worktolivefinancialplanning.com · 01925 944879 · hello@worktolivefp.co.uk
Ian Richards FPFS · Chartered Financial Planner · Fellow of the Personal Finance Society (fewer than 1,000 in the UK) · Workto Live Financial Planning Limited
This articleis for information purposes only and does not constitute financial advice. The value of investments can fall as well as rise. You may not get back the fullamount invested. A pension is a long-term investment and its value is not guaranteed. Levels and bases of, and reliefs from, taxation are subject to change. The FCA does not regulate cashflow planning or tax planning. Work to Live Financial Planning Limited is an appointed representative of ValidPath Ltd, authorisedand regulated by the Financial Conduct Authority (FCA Reference Number 197107).Company No. 12059588.