When to switch a Gilt ladder from nominal to index-linked?

JamTomorrow

Hi everyone,

I’m looking for some thoughts on when it makes sense to choose index-linked gilts over conventional nominal ones within a retirement ladder.

I currently have a 9-year gilt ladder. I love the peace of mind and calm it brings me. Even if I’m foregoing higher equity returns in the long run, it mitigates sequence of returns risk and stops me doing anything stupid when the inevitable equity pullbacks happen.

My current ladder is entirely nominal. For the near term, I’m comfortable with that. The gilts I hold in my ISA are based on a bottom-up budget of exactly what I need to fund a 2 year period from age 55 before I can access my SIPP.

My first SIPP rung matures in 2032, and I'm also happy for this to be nominal. It's set up to repay a fixed interest-only mortgage amount and provide around £50k for year 1 withdrawals (matching the current 20% basic rate tax threshold). I expect fiscal drag to continue, but if the threshold is surprisingly raised, I'll just buy more nominal units to match it.

The conundrum (2033 to 2037 rungs):
It’s the rungs beyond 2032 that I am questioning. Currently, these are all £50k nominal tranches, with the loose plan to buy more units if the basic rate threshold rises.

However, now that I understand index-linked gilts a bit better than when I started, I am thinking about switching these 2033–2037 rungs into linkers instead. It feels like it would make life easier and significantly reduce long-term inflation risk.

My primary goal for this specific money is wealth preservation in real terms, so switching to linkers feels logical. But part of me wonders if I'll miss out if the age of AI actually translates into a structurally deflationary period. Will I be kicking myself if the next decade becomes an era of 1%-2% inflation ….

Is there any conventional wisdom or standard strategy here? Has anyone else grappled with this exact split in their bond ladder, and what conclusion did you reach?

Am I overthinking this?

Worried_fool

Going back to first principles…

Your reason for foregoing the potentially higher returns offered by equities is to reduce risk. However, you do still fact the risk that is posed by inflation. Index-linking allows you to remove this risk as well. If you are ultra-cautious and want certainty about your future purchasing power, then that is the way to go. However, you are aware that this certainty comes at a price, and it is entirely possible that inflation will be negligible. You have to decide whether the peace of mind that comes from eliminating inflation risk is, for you, worth the lower returns.

Alternatively, you could diversify. Maintain a core "emergency fund" in ILGs; keep part of your portfolio in your gilt ladder; perhaps even put a small proportion of your wealth into equities.

QrizB

I can't offer any "conventional wisdom" but I went through a similar exercise myself.

My gilt ladder runs from 2027 to 2036 and the first four years are nominal, the next six are (or will be) IL.

JamTomorrow

https://forums.moneysavingexpert.com/discussion/comment/82042576#Comment_82042576

Thanks I think this is where I will end up and then each time I replace a rung it will be IL. I'm just working out how much more it will mean I need to move from equity to bonds to derisk inflation.

I think this is one of those Charlie Munger not being stupid decisions.

"It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be very intelligent."

kermchem

You mention that the ladder stops you doing anything stupid when equity pullbacks happen. If your plan is that you might now sell some conventional gilts and buy linkers then you might ask yourself when is a good / bad time to be doing that. Avoiding politics - but gilt yields are at or close to a high, and might go higher soon if the markets react to possible changes ahead. That means you will be selling your conventional gilts at a lower price, which might not also be reflected in linkers. Are you not in danger of doing something stupid when gilt pullbacks happen?

JamTomorrow

https://forums.moneysavingexpert.com/discussion/comment/82042586#Comment_82042586

That’s a completely fair challenge, and the honest answer is I can't be certain I wont do anything stupid.

When I bought the nominals back in October 2025, it was simply because I didn't understand index-linked gilts well enough at the time to pull the trigger. My intention back then was always to look into them properly later once I’d done the reading.

Regarding market timing and the risk of "doing something stupid when gilt pullbacks happen": I see where you're coming from, but I look at this differently. I’m not trading these units to chase a short-term yield play or time a market peak.

Once these later rungs are switched to linkers, they will be held to maturity. They have one specific job: to reduce sequence of returns risk (SORR) and guarantee real purchasing power during my first decade of retirement.

So I don't view this as flip-flopping or panic selling. It's just me continuing my financial education and shifting from a placeholder position I took in 2025 to a better-understood structural asset that actually matches my long-term inflation risk.

tigerspill

My focus has been preservation of spending power so I have gone exclusively for ILGs from 2031 and plan to use a 10 year ladder - selling equities each year to add a further year of an ILG. The next few years I have in cash. I have looked at nominal gilts and see no huge reason to hold these.

mrklaw

isn’t usual sentiment to consider the breakeven point and if you think that is reasonable or might be breached then linkers can be an option. or a blend over a period - eg 1-5 years nominal, 6-9 years linkers as the nominal starts to be fuzzier in terms of ‘real’ return.

honestly though if its covering the costs you need, you’ve factored in inflation within a range you’re ok with - even if inflation increases you could top up with otehr options later or flex your spending so it may be low risk even staying nominal.

OldScientist

To take the 2032 rung as an example

Paying off the mortgage with a nominal is, as you already know, perfectly sensible since the amount of (in nominal terms) is known in advance and the maturing gilt will provide exactly the amount required.

Whether the £50k earmarked for spending in that rung should be in nominal or linkers depends on a number of considerations

1. The breakeven rate - effect on nominal income. The breakeven rate is currently about 3.2% (since real yield is roughly 1.2% and nominal yield is 4.4 to 4.5%). In other words, if annualised inflation over the next 6 years is higher than 3.2% them, a linker will result in a larger amount of nominal pounds, while if annualised inflation is below 3.2%, then the nominal gilt will result in a larger amount of nominal pounds.
2. The breakeven rate - effect on real income. Regardless of inflation, the linker will result in a known real amount (i.e. equivalent to £50k in today's money). For the nominal gilt, if inflation is higher than the breakeven rate it will deliver a lower real amount and vice versa.
3. Consequences. If inflation is high over the next 6 years, then what effect would holding the nominal gilt have on your retirement (i.e., minor irritation to catastrophic or somewhere in between). For example, with annualised inflation of 6%, you'd see a (very roughly) 16% decline in real income (i.e., your £50k would be worth about £42k in today's money).

However, IMV, trying to predict future inflation is a futile exercise so if you want real income then, where they are available*, use linkers, while if you want nominal income then use nominal gilts.

* there isn't one available before November 2027 - so cash or nominal gilts are currently required in the short term. As we've seen in recent years, the base rate does not necessarily track inflation very well.

JamTomorrow

I think that hits the nail on the head. For me, the primary goal for this specific money is preserving real spending power. If the basic rate tax threshold had a triple lock on it, I wouldn’t hesitate to move entirely into linkers for the later rungs.

However, as it's becoming increasingly clear to me that I'll be withdrawing into the 40% tax bracket at some point in retirement anyway, having a flat £50k nominal value linked to inflation means those later tranches will likely cover more than my essential real spend.

My conclusion is to go ahead and switch the rungs from 2033 onwards into linkers now. Going forward, when any future ladder rungs are required, I'll default to linkers as standard, assuming the market conditions and breakeven rates still make sense at the time.

JamTomorrow

Also, going to be buying my linkers with II. Did i read somewhere that after I have bought them then II will show them as undervalued because they do not reflect the indexation in the valuation?