Looking for a heads-up about whether using a Ltd company for BTL properties is a half-cocked idea.  I think it's worthwhile that I speak to an IFA but any input from here might give me food for thought ahead of time.

I currently earn ~£80k/yr taxable PAYE income. For the sake of this post, let's say no more pension contributions are available.

I earn a further £7.5k/yr from a flat that I rent out (with 35% equity - ~£80k outstanding) - with a consent to let residential mortgage rather than BTL but I don't know if that'll make a difference. This is >1.66x the repayment mortgage so this repays itself.

I have about 50% equity (~£120k) in my main home. I'd like to free up the equity with a BTL mortgage ~LTV 75%) and use that for a deposit on a new residence. I believe this property would earn ~£11-12.5k/yr. Again, this would be >1.66x the repayment mortgage.

My question, now that I'm at an effective earnings ceiling - does a Ltd company become a low-tax savings vehicle if I use it to buy further BTLs?

As of March next year, I'll have ~£75-80k available to me as cash.

My initial thought was to pay off the flat entirely, thus the entire rent would be mine rather than used for the mortgage. I also thought that was the only option, since buying another BTL would take me into the harsh tax bracket.

But I believe I can loan that £75k to a Ltd company I set up and use that to purchase a couple of BTLs at 75% LTV.  Given my current financial situation, I don't need the extra money just now, so it'd be used purely to pay the flats off with the rent.  I can then pay myself back the £75k loan and, later in life, use the Ltd company to pay myself (in supplement to the savings I have and retirement funds).

Thoughts or comments?

Thanking you all.