Reserve Bank of Australia lifts cash rate to 4.60% as central banks across five economies post fresh exchange-rate tables

Reserve Bank of Australia lifts cash rate to 4.60%, the fourth hike of 2026

The Reserve Bank of Australia raised its official cash rate by 25 basis points to 4.60% on 29 September 2026, the fourth increase of the year, attributing the move to inflation pressures that remain elevated. The decision resets every Australian calculation that takes the policy rate as an input: variable mortgage payments, new business-loan quotes, interest-rate swap valuations and stress-test scenarios for borrowers. Practitioners who maintain rate-dependent tools should re-anchor the policy-rate field and re-run downstream payment formulas, using a Mortgage Calculator and the How to Calculate a Mortgage Payment With an Interest Rate guide to verify the new figure produces the expected amortisation schedule.

The same RBA move feeds savings calculators and deposit-rate comparators, where a 25-basis-point step changes annual yield on floating-rate accounts in lockstep.

Russian Central Bank publishes official ruble exchange-rate table for 29 September 2026

The Central Bank of the Russian Federation published its official exchange-rate table effective 29 September 2026, posting foreign-currency rates against the ruble without assuming any obligation. The publication sets the input value for any cross-border calculation involving the ruble on that settlement date, including import-invoicing conversions, salary remittance estimates and currency-hedging cost models. Russian exporters and importers who lock pricing in rubles need the dated figure rather than a live interbank quote, so any workflow that mixes the two should clearly label which source is being used.

Central Bank of Egypt posts daily buy-and-sell quotations for major currencies

The Central Bank of Egypt posted its daily exchange-rate table on 29 September 2026, listing the US dollar at 52.0280 buy and 52.1280 sell, the euro at 59.1402 buy and 59.3790 sell, pound sterling at 68.8018 buy and 69.1947 sell, and the Swiss franc at 62.5412 buy and 62.9337 sell. The two-sided quotation matters for any Egyptian calculation that distinguishes bid from offer, including import duty conversions, traveller-cheque valuations and forward-pricing estimates. Practitioners building a multi-currency tool should preserve both columns rather than collapsing them to a midpoint, because the spread itself is the input the user is paying to convert.

Swiss National Bank, Bank of Mongolia and Central Bank of Jordan release parallel exchange-rate prints

The Swiss National Bank posted reference rates for 28 September 2026 showing 1 EUR at 0.9456 CHF, 1 USD at 0.8311 CHF, 100 JPY at 0.5296 CHF and 1 GBP at 1.1028 CHF. The Bank of Mongolia's same-day table listed 1 USD at 3,595.17 tögrög, 1 EUR at 4,092.38, 1 JPY at 22.86, 1 CHF at 4,328.92 and 1 SEK against the local unit, while the Central Bank of Jordan posted USD, EUR and JPY 100 quotations for the same date. Three independent central banks publishing on the same calendar day gives practitioners a single refresh point for cross-currency spreadsheets; any tool that previously hard-coded older parity assumptions should now allow the rate field to be edited directly.

Where a calculation needs both a buy and a sell side, the Swiss franc pair can be cross-checked against the Egyptian table as a sanity check, since the CHF should invert consistently between the two.

US Treasury bill auction yields remain available for short-rate anchoring

The US Treasury's daily Treasury bill rates page continued to publish secondary-market quotations on the most recently auctioned bills across maturity buckets, anchored to 2026. Treasury bill yields are the standard short-rate input for discounting calculations, money-market fund NAV work and any overnight-rate proxy used in place of a published policy rate. Practitioners who use T-bill yields as a stand-in for the federal funds rate should note the page references the 4-week tranche explicitly, which gives a clean handle on the front end of the curve without interpolation. The same data feeds risk-free-rate assumptions in DCF models and option-pricing formulas.

What to check next

Re-anchor any Australian calculation to the 4.60% policy rate, then refresh ruble, Egyptian pound, Swiss franc, Mongolian tögrög and Jordanian dinar inputs using the dated central-bank prints above. Re-run Compound Interest Calculator With Steps: Run the Numbers against a US T-bill yield to confirm the front end of the curve, and re-validate Car Loan Calculator defaults if a calculator is denominated in any of the affected currencies.

Monitor the next RBA meeting statement for language on whether 4.60% represents a terminal hold or a pause, since that determines how aggressive a tool's forward-rate assumptions should be.