If your business holds surplus cash — money sitting beyond what you need for day-to-day expenses, upcoming tax bills, or a sensible operational buffer — then business savings should be near the top of your financial housekeeping list. And yet, for most of the owner-managed businesses we work with, it isn’t.

The reasons are understandable. Running a business is busy. The current account is convenient. And the topic of savings accounts can feel like something to deal with later, once the bigger things are sorted. But with business savings rates sitting meaningfully above where they were a couple of years ago, “later” is costing you real money.

In this post we’ll walk through how we think about business savings for owner-managed businesses — what accounts are worth considering, how tax applies, and a few things we’d flag before you open anything.

Most business current accounts pay little to no interest. That’s not a new observation, but it becomes meaningful when you factor in the kind of balances that many small businesses routinely carry.

Think about the cash position of a typical limited company between year-end and the corporation tax payment date. Or the VAT buffer a trades business keeps to cover a quarterly return. Or the reserves a growing e-commerce business holds as a cushion against supplier payment terms. That money might sit idle for three, six, or even twelve months at a stretch.

Research suggests that only around a quarter of UK businesses hold reserves covering more than six months of operations — which means a significant portion of businesses are arguably under-reserved. But for those that do hold meaningful cash, the opportunity cost of not putting it somewhere with a reasonable return is real and measurable.

This isn’t about taking any risk with business funds. It’s about recognising that “safe” and “in the current account” are not the same thing, and that FSCS-protected savings accounts exist precisely for situations like this.

The good news is that business savings rates have improved considerably compared with a few years ago. As of June 2026, you can find business savings accounts offering rates of around 4% to 4.3% for straightforward easy-access or notice accounts, with fixed-term bonds offering the best rates for businesses happy to lock funds away for a defined period.

For businesses with larger balances — typically £50,000 or more — money market accounts from high-street banks can offer competitive rates, sometimes above 4.5%, though the minimums and access terms vary significantly between providers.

The FSCS deposit protection limit for businesses is currently £120,000 per eligible depositor, per authorised bank or building society. If your business holds more than that, it’s worth spreading funds across more than one institution — something worth flagging with your accountant before you act.

We’d always recommend checking current rates directly through a comparison service rather than relying on figures that shift regularly, but the landscape in mid-2026 is genuinely more rewarding than it was a few years ago for businesses willing to shop around.

This is the question we get asked most often once a business owner has decided to do something with their surplus cash. The honest answer is that it depends on what the money is for.

Instant-access savings accounts are the most straightforward option. You deposit funds, earn interest daily or monthly, and can withdraw when you need to. The trade-off is that rates are typically lower than fixed-term alternatives. These work well for your operational reserve — the cash buffer you might need to call on quickly.

Notice accounts sit in the middle ground. You give the bank a set notice period (commonly 30, 60, or 90 days) before you can withdraw. Rates are generally better than instant access, and they suit funds you know you won’t need immediately but want to retain some flexibility with.

Fixed-term accounts (bonds) currently offer the strongest rates. If you have cash that you’re certain you won’t need for a defined period — say, a six- or twelve-month period — a fixed bond can make good sense. Just be clear about what that money is earmarked for before you lock it away. The worst outcome is needing funds for a tax bill and being unable to access them without a penalty.

In our experience, a simple split — keeping three to six months of operating costs in instant access, with any surplus beyond that in a notice or fixed account — works well for most small businesses.

Business savings interest doesn’t escape tax, and the treatment differs depending on your business structure.

Limited companies: Interest earned by the company is treated as taxable income and included in the corporation tax computation for the relevant accounting period. There’s no separate allowance — it’s simply added to profits. At the current main rate of corporation tax this matters, and it’s worth factoring into any comparison between savings rates: a 4% gross return becomes something closer to 3.2% after corporation tax at 25% for a profitable company.

Sole traders and partnerships: Interest earned through a business savings account is generally treated as trading income and declared on Self Assessment. Unlike interest earned on personal savings, there’s no automatic savings allowance applicable in the business context, so it’s taxed at your marginal rate.

This doesn’t mean savings accounts aren’t worthwhile — even after tax, meaningful positive returns beat zero. But it does mean the decision is worth thinking through with your accountant, particularly if you’re a limited company director also making decisions about director loans, dividends, or how retained profits sit within the business.

If you’re unsure how savings interest should appear in your accounts or tax return, this is exactly the kind of thing we help clients with as part of our year-round support.