Finance Editor, Kael Tripton Ltd - LBS MBA - Verified against FCA Handbook: 14 June 2026
Quick answer
DISP 2.8.2 gives you 6 months from the date on the firm's Final Response Letter to refer a complaint to the Financial Ombudsman Service. Miss this deadline and the FOS cannot accept your case. There is no discretion unless the firm agrees to waive it. Diarise the date immediately when you receive a Final Response Letter.
What Is the 6-Month FOS Deadline and How Does It Work?
Direct answer
What is the deadline to complain to the Financial Ombudsman Service?
Under DISP 2.8.2 (handbook.fca.org.uk/handbook/DISP/2/8/), you must refer your complaint to the FOS within 6 months of the date on the Final Response Letter from the firm. The clock starts from the date printed on the letter, not the date you receive it. Missing this deadline means the FOS cannot accept your case -- there is virtually no discretion to extend it.
FCA Handbook - DISP 2.8.2R - Verbatim Rule Text Source: handbook.fca.org.uk
The Ombudsman can only consider a complaint if the complainant refers it to the Financial Ombudsman Service within 6 months of the date on the respondent's final response.
FOS Time Limits: Full Summary
| Time limit | Trigger | Rule |
|---|---|---|
| 6 months | Date on Final Response Letter | DISP 2.8.2R -- most commonly missed |
| 8 weeks | No response from firm | Can go to FOS without Final Response Letter |
| 6 years | Date of act or omission | DISP 2.8.2R backstop |
| 3 years | Date of knowledge | DISP 2.8.2R if discovered late |
| 6 years | Contract breach (court) | Limitation Act 1980 -- if FOS route closed |
What to Do When You Receive a Final Response Letter
Note the date on the Final Response Letter
Not the date you receive it -- the date printed on the letter. The 6-month clock starts from this date.
Diarise the deadline immediately
Add a calendar reminder 5 months after the Final Response Letter date. This gives you a month's buffer before the 6-month cutoff.
Submit to the FOS before the deadline
Go to financial-ombudsman.org.uk. You can submit online in under 30 minutes. Do not wait for a paper form.
If the deadline has passed -- ask the firm to waive
Write to the firm requesting they waive the 6-month time limit. Some firms agree to this if the delay was due to their own poor communication.
Consider court as the alternative
For contract claims, the Limitation Act 1980 gives 6 years from the breach. Court is more complex and costly than FOS but available if the FOS route is closed.
Why the 6-Month Deadline Is the Most Commonly Missed FOS Rule
The Final Response Letter arrives when you are often still trying to negotiate with the firm or waiting for the insurer to reconsider. Many people assume they can continue negotiating and escalate to the FOS later. This is wrong -- the 6-month clock runs regardless of whether you are still in dialogue with the firm. If you receive a Final Response Letter, treat it as the deadline trigger even if you intend to continue the dialogue.
Unlike the FOS consumer complaint process itself (which is informal and quick to start), the 6-month deadline is a hard jurisdictional rule. The FOS has no power to accept a late case even if the complaint is clearly meritorious, unless the firm waives the time limit.
Related KT guides
Frequently Asked Questions
What is the 6-month deadline to complain to the Financial Ombudsman?
Under DISP 2.8.2 of the FCA Handbook, you must refer a complaint to the Financial Ombudsman Service within 6 months of the date on the firm's Final Response Letter. The 6-month period runs from the date on the letter, not the date you receive it. Missing this deadline means the FOS cannot accept your case as a matter of jurisdiction -- there is no discretion to accept late cases except in very limited circumstances where the firm has consented.
What happens if I miss the 6-month FOS deadline?
If you refer a complaint to the FOS after the 6-month deadline from the Final Response Letter, the FOS will ordinarily reject the case as out of time under DISP 2.8.2. The FOS has very limited discretion to accept late cases -- it can only do so if the firm agrees to waive the time limit. Most firms do not waive, so missing the 6-month deadline effectively ends your FOS route. Your remaining option is court, which has its own limitation periods under the Limitation Act 1980 (typically 6 years for contract claims).
Are there other time limits for FOS complaints?
Yes. Under DISP 2.8.2, you must also complain within 6 years of the act or omission you are complaining about, or 3 years from when you knew or should reasonably have known you had cause to complain -- whichever is later. So if you discovered a problem with a policy 4 years after it was sold (and the problem occurred more than 6 years ago), you have 3 years from discovery. The 6-month Final Response Letter deadline is the most commonly missed.
What if the firm does not send a Final Response Letter?
If the firm has not sent a Final Response Letter within 8 weeks of your original complaint, you can refer the complaint to the FOS without one. The 6-month deadline only starts from an actual Final Response Letter -- if no letter is sent, there is no 6-month clock running. The FOS will treat a complaint referred after 8 weeks with no Final Response as eligible for review.
Can I complain to the FOS at the same time as the firm?
No. DISP 2.8 requires you to complain to the firm first and give it the opportunity to respond before referring to the FOS. The FOS will not accept a case that has not first been through the firm's internal complaints process. However, once 8 weeks have passed with no Final Response Letter, you do not need to wait any longer.
Primary sources
Kael Tripton Ltd is registered with the Information Commissioner's Office under registration number ZC135439.
