RBA May 2026: What the 4.35% Cash Rate Means for Your Home, Car & Business Loans

The Reserve Bank of Australia lifted the cash rate to 4.35 per cent on 6 May 2026, the third 25-basis-point hike this year. Governor Michele Bullock described the move as the board "going back to square one" on the rate-cut cycle that began in late 2025, after imported fuel-price pressure flowed through to underlying inflation. Bond markets have repriced. The interest-rate futures curve now implies a peak cash rate near 4.75 per cent before year-end. For Australian borrowers, the question is no longer "what is the RBA doing" but "what does it cost me, and what do I do about it." This guide answers both, by loan type.

Home loans: what the May 2026 hike actually costs

The four major banks announced full pass-through of the 25-basis-point hike within 24 hours of the decision. On the day this article was written, the average new-customer variable rate for an owner-occupier P&I loan at 80 per cent LVR sits between 6.49 and 6.59 per cent, with the cheapest products in our lender panel at around 6.04 per cent for refinancers with 70 per cent LVR or better. The dollar impact of the May hike alone, on a 25-year owner-occupier loan:

• $400,000 loan: about $61 a month, $732 a year
• $600,000 loan: about $91 a month, $1,092 a year
• $700,000 loan: about $107 a month, $1,284 a year
• $800,000 loan: about $122 a month, $1,464 a year
• $1,000,000 loan: about $153 a month, $1,836 a year

That is on top of the two previous 2026 hikes. Cumulative for the year so far, a $700,000 mortgage is now $317 a month more expensive than it was in January, $3,800 a year in extra interest paid out of after-tax income. For a borrower in the 32.5 per cent marginal tax bracket, that is the equivalent of $5,630 of additional gross income.

Fixed vs variable: the case for fixing is stronger than it has been in two years

Through 2024 and most of 2025, the consensus advice on fixing was "probably not". The rate-cut cycle was visible on the horizon, the fix premium over variable was wide, and the optionality of variable (offset accounts, unlimited extra repayments, full redraw) compounded in borrowers' favour. May 2026 changes that calculus for a meaningful slice of borrowers. Two-year and three-year fixed rates moved up 0.30 to 0.55 per cent in the 48 hours either side of the RBA decision. The fix premium over the cheapest variable is now 0.20 to 0.40 per cent on most lender panels. For a household that is one or two further hikes away from cashflow stress, fixing two years for a known premium is the right call. For a household with a healthy buffer and a habit of making extra repayments, variable still usually wins on a 5-to-7 year horizon. The trap to avoid: do not fix if there is any reasonable chance you will sell, refinance, or restructure inside the fixed term. Break costs on a typical mortgage can run into tens of thousands of dollars if rates move against your fix. The lender quotes the break fee at the date of break using a formula prescribed in your contract; it is not negotiable.

The 2021 fixed-rate cliff is still rolling

A meaningful cohort of 2021 and early-2022 fixed loans, originated at headline rates near 2 per cent, is reverting to variable through 2026. For a borrower whose $600,000 loan was fixed at 1.99 per cent and now reverts to a 6.55 per cent variable rate, the monthly repayment increase is roughly $1,300 a month, or about $16,000 a year of additional after-tax cashflow. The May 2026 hike adds another $91 on top of that. Refinance shopping is no longer optional for this cohort. The rate gap between the cheapest variable product currently available and the major-bank average is 0.40 to 0.65 per cent. On a $600,000 loan, that is $150 to $245 a month of saving from a refinance to the cheapest product, before any cashback or fee offset is factored in.

Car loans: what changes

Secured car loan rates are not directly tied to the RBA cash rate, but the same wholesale-funding pressures that move home loan rates flow through to retail vehicle finance, typically with a lag of two to six weeks. Through May 2026, secured new-car rates from our lender panel range from 7.49 per cent to 11.99 per cent depending on credit profile, vehicle age, and LVR. Used-car rates are typically 1.0 to 2.0 per cent higher than new-car rates. The May hike will add roughly 0.15 to 0.25 per cent to new car loan offers across the next six weeks, based on how previous hikes have flowed through. On a $40,000 five-year secured car loan, a 0.20 per cent rate increase is worth about $4 a month, or $240 over the life of the loan. That sounds small, but the more meaningful change is in approval criteria: lenders tighten their serviceability calculations when funding costs rise, which can move a borderline applicant from approval to decline.

EV and green car loans: still 0.5 to 1.0 per cent below standard

Several lenders maintain discounted rates for low-emission vehicles. On our panel, the EV/green car loan discount is 0.50 to 1.00 per cent below the equivalent standard secured rate. On a $50,000 five-year loan, a 1 per cent rate discount is worth roughly $1,400 of interest over the life of the loan. For an EV under $91,387 used at least partly for business, the FBT exemption stacks on top of the rate discount, with novated lease as the most tax-effective structure for most PAYG employees.

Business loans and equipment finance: tighter conditions

The rate move flows through to business and equipment finance, but the bigger change is on the lender side. Non-bank business lenders, in particular, tighten serviceability and require larger deposits when funding costs rise. Banks lift business lending rates roughly in line with the cash rate, but with a delay of four to eight weeks. For SMEs, the practical impact this month is on cashflow planning. A $250,000 secured business loan at 9.50 per cent over five years has a monthly repayment of about $5,250. A 0.25 per cent rate increase adds roughly $30 a month, $1,800 over the term. Larger asset-finance facilities scale linearly: a $1 million chattel mortgage at 8.99 per cent over five years has a monthly repayment of about $20,750; a 0.25 per cent rate increase adds about $120 a month, $7,200 over the term.

Instant Asset Write-Off: $20,000 threshold confirmed through 30 June 2026

The federal government has confirmed the $20,000 instant asset write-off threshold for the 2025-26 financial year. Businesses with aggregated turnover under $10 million can immediately deduct the full cost of eligible assets costing less than $20,000 each. With EOFY approaching, the planning question is whether to bring forward asset purchases that would otherwise sit in 2026-27, when the threshold may revert to $1,000 (no new extension has yet been legislated for 2026-27). For most businesses, financing an asset for an EOFY purchase via a chattel mortgage is the right structure. The asset enters the books on the day it is installed and ready for use, the GST is claimable in the BAS, and the depreciation deduction (or the instant write-off, where eligible) attaches in the year of purchase. The loan is held off-balance-sheet for tax purposes, with interest deductible.

What to do this month, in order of priority

1. If you have a variable home loan: phone your current lender and ask what rate they would offer a new customer at your LVR. Many lenders move existing customers down 0.10 to 0.30 per cent on this call alone. If they will not move, run a refinance scenario against the cheapest product available for your LVR. A 0.50 per cent rate drop on a $600,000 loan is $190 a month.
2. If you are rolling off a fixed rate this year: do not wait for the reversion date. Apply for a refinance two months before. Our refinance calculator can run the break-even maths in minutes.
3. If you are about to buy a vehicle: get pre-approved for finance before you visit the dealer. Pre-approval gives you a confirmed budget and rate; it removes the time pressure that dealer finance teams use to mark up offers.
4. If you run a business: review your loan and overdraft facilities now, not after the next BAS. If you have unused credit-card limits or business overdraft headroom, those count against you on serviceability calculations even if balances are zero. Reduce limits you do not need.
5. If your repayments push the household budget into the red: phone your lender and ask about hardship arrangements before you miss a payment. ASIC requires lenders to consider hardship requests; the conversation is structured and confidential.

The May 2026 hike is one data point in a longer cycle. The cycle is not yet over, and the response that consistently outperforms is to know your own numbers, model the next 0.25 per cent in advance, and decide what you will do if it lands. Households and businesses that have done that planning cope better with the actual hike than those that find out at the next direct debit.