Commitment period (loan)

Commitment Period (Loan) - The commitment period refers to the length of time for which a bank maintains a binding loan offer. Within this period, the borrower can accept the offer without the interest rate or terms changing. Once the commitment period expires, the offer lapses, and the bank may apply new-usually less favorable-terms.

Typical Terms and Influencing Factors

For standard mortgage offers, the commitment period ranges from 5 to 15 business days, depending on the lender. For a commitment fee, the period can be extended to several months-this is particularly relevant for new construction projects, where months often pass between the loan offer and the drawdown. The length of the commitment period depends on the current interest rate environment: During periods of rising interest rates, banks shorten the periods because they want to limit the risk of unfavorable interest rate developments.

The commitment period generally begins on the date of the written offer or when the borrower signs the application. Anyone obtaining multiple offers at the same time should ensure that the periods are coordinated - this way, they keep all options open until the final decision is made. Some banks and brokers also offer Ratlock products, in which the interest rate is fixed for a longer decision-making period without the need to immediately enter into a binding loan agreement.

Distinction from the Fixed-Rate Period

The commitment period should not be confused with the fixed-rate period (fixed borrowing rate). The commitment period refers to the validity of the offer prior to the conclusion of the contract. The fixed-rate period, on the other hand, determines how long the agreed-upon interest rate is fixed after the contract is signed-typically 5, 10, 15, or 20 years. Both periods are important for financial planning but relate to different phases of the loan process.

Fixed-Rate Period and Interest Rate Risk

When choosing a fixed-rate period, security and cost-consciousness are at odds: A long fixed-rate period (15-20 years) protects against interest rate hikes but comes at a premium compared to a shorter term. A short fixed-rate period (5 years) starts out cheaper but carries the risk of expensive refinancing. During the low-interest-rate period prior to 2022, many Nuremberg buyers deliberately chose long fixed-rate periods-a wise decision given current interest rate levels (as of 2025). Anyone financing a purchase today should take historical interest rate volatility into account and align the fixed-rate period with their personal risk tolerance.

Comparison of Commitment Period vs. Fixed-Rate Period

Feature	Commitment Period (Offer)	Fixed-Rate Period (Contract)
Timing	Before contract signing	After contract signing
Duration	5-15 business days (standard offer)	5-20 years
Purpose	Offer remains valid; buyer may accept	Interest rate fixed for term
Costs upon extension	Commitment fee or rate lock surcharge	Higher interest rate for longer commitment
Risk upon expiration	New offer with potentially higher interest rate	Refinancing at market rate
Typical extension option	Forward loan up to 60 months	Renewal with existing bank

Practical tip for buyers in Nuremberg

We recommend that buyers in the Nuremberg metropolitan area actively factor the commitment period into their purchase planning. Those still in purchase negotiations should aim to negotiate the longest possible commitment period to avoid time pressure. At the same time, you should only request a loan offer once the draft purchase agreement is available-this allows you to make the most of the commitment period. For new construction projects from a developer, we recommend securing an interest-free period (usually 3-12 months) in the contract, as disbursement often occurs in installments based on construction progress. Before making a final decision, compare at least three to five offers from different banks and financial brokers-the differences in terms can amount to tens of thousands of euros over a long term.

Frequently Asked Questions

Can I extend the lock-in period?

Yes, many banks offer an extension for an additional fee. Alternatively, you can take out a forward loan that locks in the current interest rate up to 60 months in advance-though with an interest premium of approximately 0.01-0.03% per month of lead time. For a 24-month lead time, this results in additional costs of around 0.24-0.72 percentage points compared to the immediate interest rate. During periods of rising interest rates, this forward loan can still be worthwhile.

What happens when the fixed-rate period expires?

The offer loses its validity. While you can request a new offer, the interest rate will then be based on current market levels. During periods of rising interest rates, this can result in significant additional costs. An expired offer does not entitle you to the original terms. In practice, it’s worth contacting the bank well before the deadline expires-many institutions will tacitly extend the offer by a few days if negotiations are still ongoing.

Is a loan offer truly binding within the commitment period?

A written loan offer with a specific interest rate and all essential terms is legally binding within the commitment period-the bank must finalize the loan under these terms if you accept. This is contingent on your creditworthiness not having deteriorated significantly and the information in the documents being accurate. Subsequent changes in your creditworthiness or the property’s status may lead the bank to withdraw the offer-all the more reason to submit all documents carefully and completely.

How does the fixed-rate period affect the total cost of financing?

Choosing the fixed-rate period is one of the most significant decisions in a mortgage. A longer fixed-rate period (15 or 20 years) means higher ongoing interest payments but provides planning security for the entire term. A shorter term (5 years) starts out cheaper but carries the risk of expensive refinancing. Calculation example: For a loan of 300,000 euros with a 20-year term and a 2% principal repayment, a one-percentage-point difference in interest rates during refinancing after five years can result in tens of thousands of euros in additional costs over the remaining term. Anyone who secured financing at under two percent in 2022 and chose a long fixed-rate period is paying significantly less today than buyers who opted for short terms back then. In the Nuremberg metropolitan area, we recommend consulting with an independent financial advisor to select the fixed-rate period for medium- and large-scale financing; this advisor can run through various scenarios and take your individual risk tolerance into account.

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