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NZ Wholesale Swap Rates & OCR Tracker (Live RBNZ Table B2)

Q: What is a wholesale swap rate?

There is no single 'good' yield, as it depends entirely on the region and the property type. Generally, in major centers like Auckland or Wellington, a gross yield of 3.5% to 4.5% is common, with investors relying more on capital growth. In regional New Zealand, investors typically target higher gross yields of 5% to 7% to ensure the property is cash-flow positive.

Q: Why do fixed mortgage rates follow swap rates instead of the OCR?

Gross rental yield is calculated using the formula: Annual Rent ÷ Purchase Price x 100. This gives you a percentage that represents the total annual rent as a proportion of the purchase price.

Q: Why are advertised retail mortgage rates higher than swap rates?

Both new builds and existing properties have different yield characteristics. New builds often have lower gross yields but may offer better depreciation benefits and lower maintenance costs. Existing properties in regional areas typically offer higher gross yields. Compare the full pros and cons in the New Build vs. Existing Property Investment guide.

Q: How often is this swap rate data updated?

No, rental yield calculations exclude mortgage interest. Yield is calculated based on the purchase price and rental income, not your financing costs. Mortgage interest is a separate consideration when calculating your actual cash flow and return on investment.

Q: 6. How do wholesale swap rates affect mortgage break fees?

Running the yield on a property is the first step. The second step is proving to the bank that the rent, combined with your personal income, is enough to secure the mortgage. At Home Loan Factory, we specialize in structuring investment finance and can run your figures through the exact servicing test the banks use to tell you instantly if you will be approved for the purchase.

Track daily NZ wholesale swap rates (1 to 15 years), bank bill yields, and the Official Cash Rate. Interactive RBNZ Table B2 data updated every business morning.

Key Swaps (1–5Y)

1 Year

2 Year

3 Year

5 Year

90d Bank Bill

All Tenors

Yield Curve

Timeframe:

All (2011+)

Fetching latest wholesale rate data from RBNZ Table B2...

Raw Figures & RBNZ Series Verification: View plain-HTML daily & annual tables with official RBNZ Series IDs (INM.DP1.N, INM.DS01.NZZC–DS15.NZZC). View Daily Static Data Tables →

Data Attribution & 1-Business-Day Delay: Daily wholesale closing mid-rates are compiled from Reserve Bank of New Zealand (RBNZ) Table B2, sourced via RBNZ, Reuters, and the New Zealand Financial Markets Association (NZFMA). Figures reflect end-of-day wholesale closes published on the following business morning (not live intraday trading quotes) and are provided as a general educational guide only.

* Wholesale Benchmark vs. Retail Home Loan Rates: Swap rates are institutional benchmarks used by bank treasury desks to manage interest-rate risk—they are not retail mortgage rates available to borrowers, as banks also factor in customer deposit costs, wholesale funding margins, and capital buffers. Compare live retail offers on Compare NZ Mortgage Rates and our Historical Mortgage Rates Tracker, read why fixed mortgage rates move ahead of the OCR, or speak with an HLF Financial Adviser for personalised advice (see How We Get Paid).

How Wholesale Swap Rates Connect to Your Mortgage

Wholesale swap rates act as an internal benchmark for bank treasury desks managing fixed interest-rate exposure—they are not retail home loan rates[cite: 1, 12]. While floating, offset, and revolving credit rates step up and down closely with the overnight OCR, multi-year fixed rates follow forward-looking swap curves alongside local term-deposit competition and offshore funding margins (see our full guide on why fixed mortgage rates don't always follow the OCR).

The spread between wholesale swaps and the advertised Special rates or discretionary discounts offered to borrowers with at least 20% equity (an 80% Loan-to-Value Ratio) covers retail deposit interest, capital buffers, and bank lending margins—whereas borrowers above 80% LVR typically face Standard rates or a Low Equity Margin. Swap movements also drive Early Repayment Adjustments (break fees) when ending a fixed term early.

To see how wholesale trends translate into real-world borrowing numbers, compare current lender offers on Compare NZ Mortgage Rates, review retail rate history on our NZ Historical Mortgage Rates Tracker, model staggered split loan tranches in our Home Loan Calculator, or test switching costs in our Refinance Calculator and Mortgage Break-Even ROI Estimator. For plain-English definitions of 86 lending terms, browse our NZ Mortgage Glossary, or chat with an HLF Financial Adviser for personalised advice (see How We Get Paid).

About This Data

This interactive tracker visualises daily movements across New Zealand's wholesale interest rate market, compiled directly from official RBNZ Table B2 wholesale interest rate statistics published by the Reserve Bank of New Zealand (Te Pūtea Matua).

The dataset tracks end-of-day closing mid-rates across 13 official benchmarks from 5 January 2011 to the present (3,970+ trading days): the Official Cash Rate (OCR), short-term bank bill yields (30, 60, and 90-day BKBM), wholesale interest rate swaps (1, 2, 3, 4, 5, 7, 10, and 15 years), and the 2-to-10-year swap curve spread. Underlying market closes are sourced by the RBNZ via Reuters and the New Zealand Financial Markets Association (NZFMA), updating automatically each New Zealand business morning to reflect the prior trading day's 5:10 pm close.

Dataset Specifications & Static HTML Access

Primary Source: Reserve Bank of New Zealand Table B2, sourced via RBNZ, Reuters, and NZFMA as 1-business-day delayed end-of-day closing mid-rates[cite: 2, 12].
Series IDs Tracked: OCR (INM.DP1.N), 30/60/90-day Bank Bills (INM.DB01.NZZV, INM.DB02.NZZV, INM.DB03.NZZV), 1Y–15Y Swaps (INM.DS01.NZZC, INM.DS02.NZZC, INM.DS03.NZZC, INM.DS04.NZZC, INM.DS05.NZZC, INM.DS07.NZZC, INM.DS10.NZZC, INM.DS15.NZZC), and 2Y–10Y Spread (INM.DS61.NZZC)[cite: 3, 12].
Historical Coverage & Static Reference Table: Unbroken daily trading series covering 3,970+ trading days from 5 January 2011 to the present[cite: 2, 12]. For researchers, journalists, and AI search crawlers that do not execute client-side JavaScript charts, all latest closes, 1D/1W/1M/1Y basis-point changes, annual high-low ranges, and recent 60-day tables are published in plain static HTML at NZ Wholesale Swap Rates Static Data Tables.

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What is a wholesale swap rate?

A wholesale swap rate is an institutional interest-rate benchmark reflecting where financial markets expect short-term wholesale rates—including the future path of the OCR—to average over a set term (such as 1, 2, or 5 years), plus a term premium. Bank treasury teams use the swap market to hedge interest-rate exposure when locking in fixed-rate home loans

Why do fixed mortgage rates follow swap rates instead of the OCR?

The Official Cash Rate (OCR) set by the Reserve Bank of New Zealand is strictly an overnight rate, which is why floating, offset, and revolving credit loans track it closely. A 2-year fixed mortgage guarantees your rate for 730 days, so banks benchmark it against 2-year wholesale swap rates—which often price in expected OCR cuts or surprise OCR holds weeks ahead of announcement day. Read our full breakdown on why fixed mortgage rates don't always follow the OCR.

Why are advertised retail mortgage rates higher than swap rates?

Swap rates only measure the wholesale benchmark cost of hedging interest-rate risk—banks actually raise nearly two-thirds of their funding from customer deposits (including everyday, savings, and term deposit accounts) alongside domestic and offshore wholesale debt. The retail margin between swap rates and advertised Special or Standard mortgage rates covers what banks pay savers, regulatory capital buffers, operating costs, and profit. You can compare live bank pricing on Compare NZ Mortgage Rates and track long-term retail changes on our NZ Historical Mortgage Rates Tracker.

How often is this swap rate data updated?

This tracker updates automatically every New Zealand business morning from RBNZ Table B2. Because official Table B2 statistics are published on a 1-business-day delay via Reuters and NZFMA, figures reflect the finalised 5:10 pm wholesale market close from the previous trading day rather than live intraday quotes. Plain-HTML verification tables are also published daily at swap-data.homeloanfactory.co.nz.

6. How do wholesale swap rates affect mortgage break fees?

Major New Zealand banks calculate Early Repayment Adjustments (break fees) by comparing the wholesale swap rate from the day your fixed term was locked or started against today's wholesale swap or bank-bill rate for your remaining term. If wholesale rates have fallen substantially since you fixed, a break fee is more likely to apply. You can test whether switching still stacks up—after break fees, cashback incentives, and any cashback clawback—using our Refinance Calculator and Mortgage Break-Even ROI Estimator.

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