The Finance Algorithm
September 2026 · Sydney · as of today

The numbers banks don't show you — calculated, in seconds.

Professional-grade financial models for Australians. 166 calculators, every bank product and energy plan as the provider publishes it, live market data, and an AI co-pilot that explains the math — without selling you a product.

  • No product is paid to appear
  • Calculators run in your browser
  • No signup, no upsell
Live · Borrowing powerAI insight
Household income$185,000
Existing debts (annual)$8,400
Borrowing power
$798,720
est. across the market
Monthly @ 6.80%
$5,207
Estimate uses net income × 6.4 − annual debts, then amortises at the current variable average (6.80%). Banks add a 3% serviceability buffer on top. Open full calculator →
Calculators166Across 18 financial verticals
Bank products3,575From 104 institutions, refreshed nightly
Energy plans19,249From 40 retailers across 6 states
Market datatodayRBA, ASX, ABS and ATO releases
§ 04 — The co-pilot

Ask in English. Answer in numbers.

Specialised assistants — one per domain. They run calculations live, cite the formulas, and never recommend a product they earn from. (We don't earn from any.)

Home Loan Assistant
runs the calculators live · cites every formula
I earn $145k, partner $80k. We've saved $180k. Can we afford a $1.1M townhouse in inner-west Sydney, and what would repayments look like?
…and what's our break-even if we wait 6 months?

Yes — comfortably. With $225k combined income and $180k saved, here's the picture:

Borrowing power
$1,284,000
Stamp duty (NSW)
$48,790
Deposit needed (20%)
$220,000
Monthly @ 5.94%
$5,232

You're $40k short on a 20% deposit — you'd pay $18,400 in LMI at 16.4% LVR, or wait ~7 months at current savings rate.

§ 05 — Methodology

A model, not a marketing page.

Every calculation is grounded in the actual serviceability formulas, ATO tax tables and APRA buffers banks use internally — then explained in plain English, with the working shown so you can check it.

Adaptive intelligence
Products nightly, market data hourly, statutory tables on release
01

Source

Every product 104 banks and 40 energy retailers publish under the Consumer Data Right, the RBA cash rate, ASX 200, AUD/USD, ATO brackets and state stamp duty schedules.

02

Compute

Bank-grade serviceability and amortisation formulas. We show our working — every assumption is auditable and editable.

03

Explain

An AI co-pilot translates the result into your situation. The calculators themselves run in your browser — only a question you choose to ask the assistant is sent on. No signups. No upsell.