Why we're building KiwiBudget in Invercargill
By KiwiBudget Team ·
If your money's gone before payday, it's not just you. That one line is pretty much the reason KiwiBudget exists.
This post is a bit different from our usual guides. It's the story of why KiwiBudget exists, told mostly in the words of Jack Ridder, who founded it in Invercargill. We've stuck to what he has actually written, because it's his story and not ours to dress up.
It started at the checkout
KiwiBudget's story starts in supermarkets. After his interview on RNZ's Nine To Noon in October, Jack wrote about where the idea came from:
"I started working in supermarkets at 15 and was there for about five years. Over that time I watched the cost of living change what people do at the checkout."
And the part that stayed with him:
"When I started, I never saw anyone with a calculator out. Now it's common to see people adding up their trolley as they go, and some putting things back."
If you've done that maths at the till yourself, you're in good company. As Jack put it in the same post: "Plenty of Kiwis are doing everything right and still finding money tight, and the tools out there don't make it any easier."
The numbers say the same thing
Here's the short version. Petrol? Up 19% in a year. Power? Up 9%. Did your pay go up 19%? Yeah, nah.
Those figures come from Stats NZ's consumers price index. In the 12 months to the September 2026 quarter, petrol prices rose 19.1% and electricity rose 9.3%, while prices overall rose 3.7%.
Pay is trickier to line up, because the newest wage figures aren't out until 4 November 2026. The latest we have covers the year to June 2026. Over that year, pay rates rose 2.0% (Stats NZ's labour cost index), while prices overall rose 4.1%. Pay ran well behind prices.
So if your budget feels like it's working harder than it used to, you're not imagining it.
Why a budget built around your payday
On RNZ's Nine To Noon, Kathryn Ryan asked Jack the obvious question: "There are other budgeting apps out there. How is your one different?" (It was his first national radio interview, and he wrote afterwards that he "was nervous, happy and a bit shocked all at once".)
In his write-up, Jack explained the difference like this:
"Most budgeting tools work by the calendar month, but most Kiwis are paid weekly or fortnightly. A monthly budget never quite lines up with when your money actually arrives, and a bill that comes out on the 20th falls in a different pay period from one month to the next."
And then the line that sums up the whole app:
"KiwiBudget is built around your payday instead."
That's it, really. Your budget starts with the day your money lands, not the 1st of the month. If you're paid every two weeks, our guide to budgeting on a fortnightly pay walks through the maths.
Why Invercargill?
The short answer: it's where Jack builds software. His founder page opens like this:
"Kia ora, I'm Jack. I build software from Invercargill, at the bottom of the South Island, and KiwiBudget is the thing I care about most: a budgeting app made properly for New Zealand, starting with the people who need it most, students."
"Made properly for New Zealand" is the bit that matters most to us. On our Back KiwiBudget page, Jack explains why:
"KiwiBudget exists because the money tools most of us use were built for other countries. They don't know what StudyLink is, they can't read an NZ payslip, and they have no idea why the power bill doubles in July."
Even the official power rules treat the south a little differently. Under the low fixed charge rules, MBIE says a household counts as a low power user if it uses less than 8,000 kWh a year, or 9,000 kWh in the lower South Island. (Those rules are being phased out and end on 1 April 2027.)
When the Otago Daily Times wrote about us in September, the headline was "Southland-born budgeting app for 'working class'". We'll take that.
We should be upfront about the "Team" in KiwiBudget Team, too. In Jack's words:
"Most of KiwiBudget is built and run by me. From time to time I hire freelancers to take a piece of work off my plate or help with something specialised, but there is no big team or big company budget behind the build."
So when you read "we" on this blog, picture a small operation run from Invercargill, not a glass tower.
What KiwiBudget does
- Budgets on your real pay cycle. Weekly, fortnightly or monthly, and the home screen counts down to your next payday.
- Shows what's safe to spend. In Jack's words, "The home screen doesn't just show your bank balance. It shows what's safe to spend between now and your next pay." Tap the number and you can see the working.
- Puts must-pays first. Setting up a budget goes pay first, then rent, bills, insurance and every repayment, then the rest. No sliders.
- Is honest when money's tight. If your must-pays are more than your pay, a "Money's tight right now" screen fits the budget to your pay, shows what was trimmed, and points you to MoneyTalks (0800 345 123), your lender's hardship arrangement and Work and Income.
- Gives you a clear view of debt. The Debts page estimates when a debt will be paid off at your current repayment and roughly how much interest that adds up to, and warns you if your repayments aren't covering the interest. Put a bigger budget line towards one debt and it shows how much sooner and cheaper it clears.
- Sorts your spending with our own New Zealand merchant list. Pak'nSave lands in groceries and Z lands in fuel, without you doing anything.
- Connects to your bank, read only. On paid plans, starting with Sync, KiwiBudget connects through Akahu to ANZ, ASB, BNZ, Kiwibank, Westpac and The Co-operative Bank. It never sees your banking login and can't move money, and your transactions arrive by themselves. More on how bank connections work.
- Works for free, too. The Free plan has manual entry and bank statement upload (PDF, CSV, OFX or QIF). Plans and prices are on our pricing page.
Launching 16 November 2026
KiwiBudget launches on Monday 16 November 2026, on iPhone, Android and the web. When we wrote this, the phone apps weren't in the App Store or Google Play yet.
Made in Invercargill. See you on the 16th.
Nothing in this post is personal financial advice. If things are tight right now, MoneyTalks offers free help on 0800 345 123.
Quick answers
Who is behind KiwiBudget?
KiwiBudget is made by KiwiBudget Limited, a New Zealand company with its head office in Invercargill. Jack Ridder founded it in 2026 and builds most of it himself, with help from freelancers.
Why does KiwiBudget budget by payday instead of by month?
A lot of Kiwis are paid weekly or fortnightly, and a monthly budget never quite lines up with when that money arrives. KiwiBudget runs your budget on your actual pay cycle, so the number on screen is what's safe to spend between now and your next pay.
When does KiwiBudget launch?
On 16 November 2026, on iPhone, Android and the web. The phone apps aren't in the App Store or Google Play yet.
Is there a free version of KiwiBudget?
Yes. The Free plan includes manual entry, bank statement upload and a monthly spending report. Live bank sync is on the paid plans, listed on the pricing page.
Can KiwiBudget move my money?
No. Bank connections are read only through Akahu. KiwiBudget can't make payments or move money, and it never sees your banking login.
If you'd like to try KiwiBudget when it opens, join the waitlist and we'll let you know the moment it's ready. You can read more about Jack on his page, and the RNZ interview and other coverage are on our press page.
Photo: Jack Ridder, October 2026, his own work. Free to reuse under the CC BY-SA 4.0 licence, with credit to Jack Ridder.