WIBOR 3M and WIBOR 6M differ in their validity period: WIBOR 3M is the interest rate on three-month deposits on the Polish interbank market, while WIBOR 6M is the interest rate on six-month deposits. Most importantly for borrowers, the interest rate for a loan based on WIBOR 3M is typically updated every three months, while for WIBOR 6M, it is updated every six months. Both indicators depend primarily on the interest rates of the National Bank of Poland (NBP) and market expectations regarding their changes.
To sum it up
- Wibor 3M – the rate is for a 3-month period; the rate usually changes quarterly.
- Wibor 6M – a rate for a 6-month period; the rate usually changes every six months.
- When the market expects increases interest rates, the 6-month WIBOR rate is usually higher than the 3-month rate; when it is expected rate cuts - it is usually lower.
- Neither option is cheaper initially; the applicable period is specified in the loan agreement, and under the benchmark reform, new agreements must ultimately be based on the POLSTR benchmark.
What is WIBOR and what do the 3M and 6M symbols mean?
Wibor (Warsaw Interbank Offered Rate) is a benchmark index showing the interest rate at which banks are willing to lend funds in Polish zlotys for a given period. It is administered by GPW Benchmark , and rates are set daily based on data provided by banks participating in the panel.
The WIBOR rate is published for several terms (validity periods). The designation after the rate name indicates the period to which the rate applies: 1M - one month, 3M - three months, 6M – six months. The rate is stated on an annual basis, so "WIBOR 6M = 5%" doesn't mean 5% for six months, but the annual interest rate on a six-month deposit.
With a loan with a floating interest rate, the bank adds its own margin to WIBOR. Interest rate = WIBOR (3M or 6M) + bank margin. The margin is usually fixed for the entire term of the contract, while the index-dependent portion fluctuates.
WIBOR 3M and WIBOR 6M – differences in practice.
frequency of payment changes
It is this difference that the borrower feels most acutely. With a loan based on 3-month WIBOR rate, The bank usually updates the interest rate every three months, using the rate in effect from the date specified in the contract. 6-month WIBOR rate The new rate applies for six months. The exact terms (such as the date from which the WIBOR rate is calculated) are always specified in the loan agreement.
Speed of reaction to changes in speed
A payment based on the 3-month WIBOR rate more quickly reflects market changes—both increases and decreases in interest rates. With the 6-month WIBOR rate, the change is reflected in the payment later, but is immediately "frozen" for a longer period. If rates rise, a loan with the 6-month WIBOR rate temporarily delays the increase in your payment; if they fall, you pay the higher rate for longer.
Bid
The 6M WIBOR rate covers a longer period, so it takes into account to a greater extent expectations about future interest rates . When the market expects a rate hike, the 6M WIBOR is typically higher than the 3M WIBOR. When a rate cut is expected, it is lower. When rates are expected to remain unchanged, both indicators are typically similar. Current values are published by GPW Benchmark and are available on financial platforms.
Comparison table: VIBOR 3M vs. VIBOR 6M
| Characteristic | VIBOR 3M | VIBOR 6M |
|---|---|---|
| The period to which the rate applies | 3 months | 6 months |
| Typical loan interest rate update | every quarter | every six months |
| Payment response to changes in NBP interest rates | Faster | Slow down |
| predictability of payments | within 3 months | within 6 months |
| When legs grow | the payment amount increases earlier | Subsequently, the bet size increases, but very significantly. |
| When the legs go down | this part comes out earlier | This part will come out later |
| Scale | annual rate | annual rate |
WIBOR 3M or 6M rate – which is more profitable for the borrower?
There's no universal answer—in the long term, the differences between the indicators largely even out, and the cost is primarily determined by interest rates and the bank's margin. When evaluating an offer, it's worth considering several factors:
- Compare total cost and annual percentage rate (APR) , and not the indicator itself - a lower WIBOR rate with a higher margin can lead to a more expensive loan.
- Wibor 6M rate It may be suitable for those who prefer less frequent changes in payment amounts and want to plan their budget for the long term.
- Wibor 3M Rate This means that the borrower can take advantage of a rate reduction sooner, but will also feel the impact of any rate increase sooner.
- If stability is important to you, consider periodic fixed interest rate option – usually for several years, after which the bank will offer new terms.
Choosing an interest rate is a financial decision that will have long-term consequences. Before signing a contract, carefully review the terms, ask your bank to simulate payments under rising interest rates, and if in doubt, consult an independent financial advisor.
Reform: POLSTR instead of WIBOR
As part of the benchmark reform being implemented by the National Working Group, the WIBOR rate is being gradually phased out. Its successor will be the index POLSTR . Ultimately, new loan agreements will be based on the new index, while existing agreements using the WIBOR rate may continue to operate during a transition period. The current reform schedule is published by GPW Benchmark.
For those already repaying loans at a WIBOR rate of 3M or 6M, this means their contracts can continue to operate under the current rules – banks say they will inform clients in advance of any changes.
Frequently Asked Questions (FAQ)
What does the WIBOR 3M rate mean in the context of a mortgage loan?
This means that the variable portion of the loan interest rate is based on the three-month WIBOR rate, which the bank typically updates every three months. A fixed bank margin is added to the rate.
Is the WIBOR 6M rate always higher than the WIBOR 3M rate?
No. The six-month WIBOR rate is typically higher when the market expects interest rates to rise and lower when it expects them to fall. When rates are stable, these two rates are similar.
How often does the WIBOR 6M rate change?
Typically, this occurs every six months, as specified in your loan agreement. The interest rate remains unchanged between renewals.
Is it possible to change the WIBOR rate from 3M to 6M during the loan term?
The rate is specified in the contract, so changing it requires an agreement with the bank (an addendum to the contract). Check with your bank to see if this is possible and under what conditions.
What is POLSTR?
POLSTR is a new benchmark replacing WIBOR. New loan agreements must ultimately be based on POLSTR, while existing agreements concluded under WIBOR may remain in effect. The current reform schedule is published by GPW Benchmark and the National Working Group.
See also
- What is the difference between fixed and variable loan interest rates?
- What is the difference between a credit and a loan?
- What is the difference between a debit card and a credit card?
- What is the difference between finance and operating lease?