The Reserve Bank's capital changes: will banks now lend more to small businesses?

Today, 1 October 2026, is the first day New Zealand banks are allowed to start using the Reserve Bank’s new standardised risk weights. If you run a small business, you’ve probably seen the headlines promising more lending and cheaper credit. Some of that will happen. But the way it happens, and who it helps first, isn’t what most people assume.

Here’s what actually changed, why it matters more at some banks than others, and what it does (and doesn’t) mean if you need funding in the next few months.

What did the Reserve Bank actually change?

In December 2025 the Reserve Bank finished its review of how much capital banks and other deposit takers must hold. The final decisions eased the overall requirement, with the new settings phased in between 2026 and 2029.

Two pieces matter most to business owners:

1. Less high-quality capital overall. Reporting by interest.co.nz put the system-wide reduction in common equity tier 1 capital at about 10%, or roughly $5 billion. Smaller deposit takers get a proportionately bigger cut: total capital for mid-sized banks is expected to be about 21% lower than current levels.
2. More granular risk weights for SME lending. Under the standardised approach, unrated business lending carried a flat 100% risk weight. The new settings split out small-business lending: 75% for retail SME and 85% for corporate SME exposures. Farm lending gets loan-to-value-based categories that can also fall below 100%.

The legal rules that put this into practice, the updated Banking Prudential Requirements, were finalised in July 2026. According to the Reserve Bank’s consultation page, banks may start using the new standardised credit risk weights from 1 October 2026, and they become mandatory from 1 April 2027. After submissions, the Reserve Bank also added a secondary test to the SME definition and eased back the farm lending discount factors it had first proposed.

What is a risk weight, in plain English?

A risk weight tells a bank how much of a loan counts when it works out how much capital it must hold. The Reserve Bank’s own bulletin on risk weights explains how these settings feed through to what banks choose to lend on, and at what price.

A simple illustration, with round numbers:

Whatever the bank’s capital ratio, the capital it has to tie up against that loan falls by a quarter. Capital is the most expensive money a bank has, so lighter capital makes small-business loans cheaper to hold and more attractive next to home loans, which have long carried much lower weights.

That’s the whole mechanism. Notice what isn’t in it: anything about your accounts, your credit file or your security.

Why the big four banks feel this less than you’d think

Here’s the part most coverage skips. ANZ, ASB, BNZ and Westpac are accredited to use their own internal models (the “IRB” approach) to set risk weights for much of their lending, subject to a floor tied to the standardised result. The new standardised SME weights therefore bite most directly on banks that use the standardised approach, which includes the smaller and mid-sized banks.

That’s deliberate. The Reserve Bank said small and mid-sized deposit takers should see a proportionately larger reduction than the four large banks, “which should allow them to grow and compete more effectively.”

There’s already evidence of intent. When Kiwibank’s $500 million capital raise was approved in 2025, the Finance Minister said it could support up to $4 billion of business lending. At the time, interest.co.nz reported Kiwibank’s business book at $5.59 billion against BNZ’s $29.76 billion. The challengers have room to grow and a regulator nudging them to do it.

The insider takeaway: if the capital changes make any bank hungrier for your business in the next year, it’s more likely to be a mid-sized or smaller lender than your current big-four bank. That’s worth knowing before you assume “my bank” equals “the banks”.

What the capital changes don’t fix

A bank’s credit decision still runs through the same tests. Lighter capital doesn’t change:

• Serviceability models. If the bank’s stress-tested numbers didn’t work before, they still don’t.
• Trading history rules. Two years of financial statements is still a common requirement for new business lending.
• Credit conduct. Defaults, arrears and judgments are assessed exactly as before.
• IRD arrears. Tax debt remains a red flag for most banks, capital change or not.
• Security policy. What a bank will accept as security, and how much it lends against it, is a credit decision, not a capital one.
• Industry appetite. Sectors a bank is cautious about, such as construction, stay that way until the bank itself decides otherwise.

We cover how each of these plays out in why banks decline business loans. The short version: if your decline sat in that list, 1 October hasn’t moved it.

If you’re weighing up whether to wait for the banks or go elsewhere now, you can check what’s available to you in about a minute, with no credit check at the enquiry stage.

So who actually benefits, and when?

Realistically, three groups:

1. Strong, bank-ready SMEs shopping between banks. More competition for clean files is the most likely early effect, particularly from challengers.
2. Farm businesses with solid equity. The new LVR bands reward low-geared farm lending, though Federated Farmers has argued the changes fall well short of what’s needed to make a real difference.
3. Borrowers at the margin of a bank’s appetite. Where a loan was borderline on price rather than policy, lower capital cost may tip it over.

On timing, don’t expect a switch to flip. Banks can phase the new weights in until April 2027, and credit appetite changes gradually. The Reserve Bank’s credit conditions survey is the place to watch for whether banks actually report easier standards for business lending over the next few quarters.

A scenario: waiting for the bank vs moving now

This is an illustrative example, not a client case.

A Tauranga joinery business has a $180k contract that needs materials and extra staff before Christmas. It’s been trading three years, the latest accounts show a dip after a slow 2025, and there’s a modest GST arrears arrangement in place with Inland Revenue.

The owner reads that banks can now hold less capital against SME loans and considers waiting for their bank to warm up. But look at what the bank actually flagged last time: the weaker year in the accounts and the tax arrangement. Neither is a capital issue. Waiting until 2027 could mean losing the contract without improving the odds.

A more useful sequence:

• Now: fund the contract through a non-bank option that assesses current trading or property security, with a short term and a clear exit.
• Next: finish the next set of accounts, complete the IRD arrangement, and keep conduct clean.
• Then: go back to the banks, including the mid-sized ones that the capital changes favour, with a stronger file in a more competitive market.

That’s the logic behind switching from bank to non-bank and back again: use each part of the market for what it’s good at, in the right order.

Bank, non-bank or private: does the calculation change?

A little, at the edges. Non-bank lenders that don’t take deposits aren’t bound by the same bank capital rules, so their appetite isn’t directly affected. What changes is the competitive backdrop: for the cleanest, lowest-risk files, banks may become more competitive. For everything outside bank policy, the options look much the same as they did in September.

In practice, non-bank and private lenders remain strongest where banks are structurally weakest:

• speed, when the need is measured in days rather than months;
• recent or bumpy trading history;
• bruised credit or IRD debt;
• purposes banks shy away from;
• property security the bank won’t take, or a second mortgage behind an existing home loan.

Our bank vs non-bank vs private lender comparison sets out those trade-offs in full, and non-bank business loans explains who they suit.

The capital changes are good news. Your situation is still the deciding factor

For small businesses as a whole, lighter capital settings and a nudge towards competition are welcome. Over time they should mean more choice. But the market’s appetite for your business still comes down to your trading, your security, your credit and your timing, and the banks aren’t the only ones in that market.

Our job is knowing the parts of the market the capital headlines don’t mention. We search non-bank, private and specialist lenders across New Zealand for property-secured business loans from $20,000 to $1m (first or second mortgage, even if the property already has a loan), plus unsecured loans and lines of credit for businesses usually trading 6+ months. Unsecured decisions are sometimes made the same day, and property-secured loans can be funded within 24 hours of approval in some cases.

What to expect if you get in touch:

• The enquiry form takes roughly a minute, and there’s no credit check when you first enquire.
• Your file isn’t blasted out to a pile of lenders. We don’t spray and pray, so you won’t be fielding calls from a dozen companies you’ve never heard of.
• An actual lending specialist reads your circumstances, then rings you personally.
• Answer the form accurately: true turnover, what’s owed and to whom, and what the funds are for. Honest detail up front is how we line up the right lender on the first attempt.

If the bank is still saying “not yet”, find out what the rest of the market says today.

See if you qualify →