**Based on what you’ve said, I’d lean towards building a pension before buying another rental property**, provided you have emergency savings and can leave that money invested until retirement. You already have exposure to property; a pension could spread your retirement savings across other investments.

Your fear of losing everything deserves a distinction: **a pension is an account for retirement savings; its risk depends on what it holds.** A diversified pension can fall substantially during a downturn, but losing its entire value through ordinary market movements would be extremely unlikely. Recovery is not guaranteed, and a fall close to retirement matters more. You can choose a mix of shares, bonds and cash suited to your timeframe and comfort with risk. [MoneyHelper explains pension investment choices](https://www.moneyhelper.org.uk/en/pensions-and-retirement/building-your-retirement-pot/pension-investment-options-an-overview).

Property also carries downturn risk, especially with a mortgage. For illustration, a property worth £200,000 with £150,000 of debt has £50,000 of equity. A 20% price fall leaves £10,000 of equity—a loss of 80%, before selling costs. Repairs, unpaid rent and periods without tenants can also turn a break-even rental into a cash drain. [MoneyHelper’s landlord guidance](https://www.moneyhelper.org.uk/en/blog/buy-or-rent-a-home/buy-to-let-mortgages-explained?source=mas).

Before deciding, I would:

- **Check what “breaks even” includes:** tax, insurance, maintenance, management fees and an allowance for vacancies. If your mortgage payments repay principal, you may still be building equity despite having no spare cash.
- **Check workplace pension benefits:** if an employer contributes, that can make pension saving particularly attractive.
- **Compare the full costs and access restrictions:** property has buying and selling costs; pensions have fees and generally restrict withdrawals until a specified age.

If you’re in the UK, eligible pension contributions usually receive tax relief, although withdrawals may be taxable. UK private pensions are generally accessible from 55, rising to 57 in April 2028, with exceptions. [MoneyHelper’s pension guide](https://www.moneyhelper.org.uk/en/pensions-and-retirement/pensions-basics/why-save-into-a-pension?source=mas). Protection against certain provider failures is separate from investment risk: the FSCS does **not** cover ordinary market losses. [FSCS guidance](https://protected.fscs.org.uk/what-we-cover/investments/).

Which country are you tax-resident in, how old are you, and does an employer offer pension contributions? Those details would make the comparison much more useful.