Am I too old to increase my wealth?

I am in a similar position. Five BLTs valued at ~£1.5m and outstanding mortgages of £150,000 (10% LTV).

I am considering this to spice up my life.

2023/2024 mortgage one unmortgaged property to 60% LTV on a five year fix (approx £180,000) and invest in a bundle of worldwide stock market tracker funds.
2024/2025 repeat.
2025/2026 repeat.
2026/2027 repeat.
2027/2028 repeat.
2028/2029 remortgage property 1 taking out 60% of the growth in value, and if necessary top up the tracker funds to equal 60% of the property value, or, more likely withdraw cash from the tracker fund so it equals 60% of the property value.
Repeat in following years for the other properties.

Instead of having one income stream, I should now have up to four income streams.
1. Rental income
2. 60% of the property inflation
3. Dividend income (~3.5%)
4. 40% of share growth above property growth.

Against all that I will be paying mortgage interest payments.

E.g. in a year:
Rental income £75,000
60% property inflation (2%) £18,000
Dividend income (3.5%) £31,500
Share price growth (3%) less reinvestment £9,000

Less mortgage interest (4.5%) £40,500

Of course, this is a more risky strategy, but the risk can be partly mitigated by not remortgaging and repaying mortgages by selling shares in years when the five year fixed rates are high.

Reply to the comment left by Yvonne Francis at 20/03/2023 - 13:17
Trusts are complex beasts and you need specialist advice. If you 'loan' money to a Trust, the loan remains part of your estate. The appreciation is 'owned' by the beneficiaries and sits outside your estate for IHT. I am in the process of liquidating a Trust because the performance has been abysmal and the costs high. Also, I was not advised, despite paying high fees, that I really should have been withdrawing my loan over the years, and using it elsewhere. I would have generated far more profit if I had invested the money myself, and could have been gifting it to my children for the past 7 years.

Reply to the comment left by Yvonne Francis at 20/03/2023 - 13:17
You are holding on because of CGT What about IHT ?
Have you all thought about booking consultation from 118? Mark and his team do come up with brilliant and more importantly legit solutions to save you tax.
I have recommended Mark and his team to a few people who were scratching their heads,they have all said no more stress and its worked out well for them. By the way I do not get commission from 118.

Reply to the comment left by Richie at 20/03/2023 - 13:04Is it just one year that you need to be living there to avoid cgt ?
(I'm presuming this was your point).
I'm sure I've read or heard somewhere that it had to be 3 years but I may be mistaken.

Reply to the comment left by PH at 20/03/2023 - 13:58
Ah, I thought it was one, at least I think it used to be.

Reply to the comment left by Tom Crispin at 20/03/2023 - 13:32
Just one little detail, the money you remortgage out of the properties for investing, consider sticking £20,000 of that in an isa investing in whatever index you would have anyway and the growth is tax free - for now.

Also consider that the mortgage interest and interest earned from shares might be very similar, Ie no profit.

Reply to the comment left by Darren Peters at 20/03/2023 - 14:59
Also, put whatever you are entitled to in a pension, and get the free top-up, and then 25% tax-free lump sum.

Reply to the comment left by Richie at 20/03/2023 - 13:04
I thought that loophole had been closed, as cgt is chargeable on any time the property was operated as a BTL, whilst owned by you?

Have I missed something?

Reply to the comment left by NewYorkie at 20/03/2023 - 15:59
No point in that Darren if the pension pot already crystalised as you only get one lump sum tax free amount. At least that's my understanding.

Invest elsewhere. As soon as the local council finds out you have multiple properties, they will come at you.