Pay off the mortgage or buy more shares? It is one of the sharpest shared ownership dilemmas on Reddit, and the threads get surprisingly detailed. A typical owner has a small mortgage, some savings and a cheap rent, and is weighing overpaying, staircasing, or just investing. Here is how to actually decide, from a regulated adviser rather than a comment section.
Why paying off the mortgage often is not the answer
The strongest Reddit consensus is: do not rush to clear a cheap mortgage. If your savings earn more than your mortgage rate, you are slightly better off keeping the money, and keeping it liquid matters for emergencies. Repaying early during a fixed deal can also trigger an early repayment charge. Most lenders let you overpay around 10% a year with no penalty, so you can chip away later if savings rates drop below your mortgage rate.
The question that actually decides it: your rent
The most useful replies all point to the same thing, the rent you pay on the share you do not own, measured as a yield against the property value. On the thread, that worked out at roughly 2.5%, which one commenter rightly called “mega cheap.” When the rent is that low, and usually capped to inflation, there is little financial urgency to buy more shares. If the rent is genuinely punitive, buying more starts to make sense. See how the numbers fit together in shared ownership costs.
Staircasing versus investing: the opportunity cost
Buying more shares is not cost-neutral. Beyond the smaller no-fee annual increments, larger purchases carry admin, valuation and solicitor fees that are proportionately large, and they tie more of your money into a single, undiversified asset. Set that against what the money could earn elsewhere. The counter-argument from the threads is fair too: if your goal is to own outright one day, staircasing, often a bigger chunk at remortgage rather than 1% a year, moves you there, captures more of any price growth, and stops rent money leaving for good.
So, pay off, buy shares, or invest?
Even Reddit’s sharpest posters disagreed, because it genuinely depends: on your rent yield, your mortgage rate versus savings, how long you plan to stay, and whether full ownership is the goal. There is no single right answer, only the right answer for your figures.
Get it modelled for your numbers
This is exactly the kind of decision worth an hour with an adviser. As former bank managers across Lincolnshire, we will model paying off, staircasing and remortgaging against your actual rent, rate and savings, so you can see which wins. See our shared ownership mortgage advice or book a free chat.
This is general information, not personal financial advice. Discussions on subreddits such as r/SharedOwnershipUK are public opinion, not a recommendation. Always take regulated advice for your own circumstances. Your home may be repossessed if you do not keep up repayments on your mortgage.
