WINZ declined or cut your benefit, how to challenge the decision

Last updated 4 July 2026. This is general information, not legal advice.

When Work and Income, which most people still call WINZ, declines your application, cuts your benefit, or lands you with a debt, the decision arrives with a paragraph of reasoning and very little explanation of what you can do about it. What you can do is substantial. Every year thousands of people use the review of decision process, and from March 2026 it matters more than ever, because MSD must now re-check specified benefits every 52 weeks, partly using automated decision-making, which means more decisions arriving with less human judgement behind them.

Your path has three steps, an internal review, then the Benefits Review Committee, then the Social Security Appeal Authority. This guide walks each step, the two deadlines that matter, and where the free help is.

Lodge the review, then get your file

The three-month clock starts when the decision is made, not when you understand it. So do these two things in this order.

First, lodge the review. A completed Review of Decision form or a short letter saying you want the decision reviewed, which decision, and why you think it is wrong is all it takes. You can hand it in at any office, send it through MyMSD, or post it. You can add detail and evidence later.

Then, request your complete file. Under the Privacy Act 2020 you are entitled to the personal information MSD holds about you, and they must respond within 20 working days. Ask in writing for everything on your file, including case notes, the reasoning behind the decision, any medical assessments, income calculations and correspondence. Decisions that look solid in a letter often look very different once you can see the case notes behind them.

Applying for a review of decision

The review of decision is the formal tool for challenging most Work and Income decisions, declined applications, cancelled or reduced benefits, debts, and sanction decisions among them. The right comes from the Social Security Act 2018. StudyLink decisions about student allowances follow the same process.

You need to apply within three months of the decision. Work and Income can extend that where there is good and sufficient reason, and a common accepted reason is that you did not understand what the decision meant until you got advice. If you are late, apply anyway and explain why.

Applying costs nothing at any stage, and you can have an advocate, lawyer, friend or family member help or represent you the whole way through.

The Benefits Review Committee hearing

Your application triggers an internal review first. Someone at MSD takes another look at the original decision and writes to you within two weeks. If they fix it, you are done. If they uphold it, in full or in part, your case goes to the Benefits Review Committee automatically, you do not have to ask twice.

The committee has three members. Work and Income describes them as two staff members who were not involved in the internal review, plus a community representative appointed by the Minister for Social Development. You will get MSD’s report to the committee before the hearing, and you are entitled to respond to it, which is the single most useful procedural right a self-represented person has. Read the report, and answer its weakest points in writing.

You can attend the hearing in person or by phone, bring a support person or advocate, or have the case decided on the papers, meaning from the documents without a meeting. Attending, or having an advocate attend, is almost always better, because it lets you answer the committee’s questions directly.

Appealing to the Social Security Appeal Authority

If the committee upholds the decision, you have 60 working days, roughly 12 weeks, from receiving its letter and report to appeal to the Social Security Appeal Authority. The Authority is an independent tribunal administered by the Ministry of Justice, not by MSD, and this is the first step where nobody on the panel works for the department.

There is no filing fee, you can bring new evidence, and MSD contributes toward the costs of attending the hearing. Beyond the Authority, appeals go to the High Court on questions of law only, which is territory for a lawyer.

Medical decisions and the Medical Appeals Board

Decisions made on medical grounds travel a different road. If Work and Income declines or cancels a benefit because of a medical assessment, common examples are Jobseeker Support on health grounds, the Supported Living Payment, and the Child Disability Allowance, you first ask them to look at it again, and if that fails the challenge goes to a Medical Appeals Board, a panel of three health practitioners, instead of the Benefits Review Committee.

Two things make this route unforgiving. The board’s decision on the medical question is final, there is no appeal from it on medical grounds. And the board decides on the evidence in front of it. So the time to get a detailed letter from your GP or specialist that addresses the exact work-capacity question is before the hearing, not after. This is the same principle that decides ACC disputes, where independent medical evidence is the single most important factor, as we explain in our guide to challenging an ACC decline.

Money while you wait

A review does not pause the decision. If your benefit was cut or cancelled, it stays cut while the process runs, which advocates say is the hardest part of the system for the people in it.

Ask Work and Income what you can get in the meantime. Special Needs Grants cover essential one-off costs like food and medical needs, Temporary Additional Support tops up a gap between income and essential costs, and you can reapply for a benefit on a different basis while the review of the old decision continues. If money is desperate, MoneyTalks on 0800 345 123 can connect you with a financial mentor, and our guide to KiwiSaver hardship withdrawals covers a last-resort option.

The reward for persisting is real. If the decision is overturned, your entitlement is normally backpaid to the date the decision took effect.

The decisions people challenge most

Relationship status. Whether you are “in a relationship in the nature of marriage” changes your rate and can create large debts, and it is the most contested question in the system. Published Appeal Authority decisions turn on financial interdependence, not just living arrangements, so evidence of separate finances, separate expenses and independent lives is what wins.

Debts and overpayments. You can seek review of whether the debt exists and how it was calculated. Separately, you can negotiate the repayment rate and ask for hardship write-off, those are different levers and you can pull both at once.

Sanctions. The sanctions regime changed under the Social Security Amendment Act 2025, which added non-financial sanctions including money management and community work experience from 26 May 2025. Advocates say challenges tend to succeed where the obligation was never properly explained or notified, so ask for the paper trail showing what you were told and when.

Declined applications. Many declines rest on missing information. Reapply with the missing documents and seek review of the original decline at the same time, so a win restores the earlier start date.

Automated re-checks. Since 2 March 2026, MSD must review specified benefits, including the Supported Living Payment, Accommodation Supplement and Disability Allowance, every 52 weeks, with parts of the process automated. We covered the automation concerns when the legislation went through. If one of these re-checks reduces or stops your payment, the outcome carries exactly the same review rights as any other decision, and a human has to look at it properly once you lodge.

Building your case and getting an advocate

Three documents win these cases. Your MSD file, which shows what the decision was actually based on. A one-page timeline of what happened and when, written by you. And evidence aimed at the exact legal test the decision relies on, which the file will reveal, whether that is your living costs, your relationship circumstances, or a medical opinion.

New evidence is allowed at every stage, internal review, committee and Appeal Authority, so a case that started thin can finish strong.

You do not have to do any of it alone, and the free advocates who work these systems weekly get results that self-represented applicants often cannot. Community Law gives free legal help nationwide. Auckland Action Against Poverty runs a free advocacy service in Auckland. The Beneficiary Advisory Service in Christchurch, 0800 00 00 43, covers reviews, appeals and fraud investigations. Work and Income also publishes a directory of advocacy services by region.

Common questions

Can I appeal a WINZ decision

Yes. Almost every Work and Income decision can be challenged, first through a free review of decision, then at the Benefits Review Committee, then at the independent Social Security Appeal Authority. Medical-ground decisions go to a Medical Appeals Board instead.

How long does a review of decision take

Work and Income writes to you within two weeks on the internal review step. If the case goes on to the Benefits Review Committee, scheduling varies by region and no reliable national timeframe is published, so ask your case coordinator for a date estimate and chase it.

Can Work and Income stop my benefit while I dispute the decision

The decision stays in force during the review, so a cut or cancelled benefit stays cut. Hardship assistance and Special Needs Grants remain available in the meantime, and if you win, entitlements are normally backpaid to the date the decision took effect.

Is the Benefits Review Committee independent

Only partly. Two of its three members are Work and Income staff, with the third a community representative appointed by the Minister. The first fully independent decision-maker is the Social Security Appeal Authority. MSD last published committee outcome figures in its 2012 to 2013 annual report, when roughly one case in six that reached a committee ended in the decision being changed or overturned, so cases do succeed there, but the Authority exists for a reason.

What if I am past the three month deadline

Apply anyway and explain the delay. The deadline can be extended for good and sufficient reason, and not understanding the decision until you got advice is a commonly accepted one.

Does challenging a WINZ decision cost anything

No. The review, the committee and the Appeal Authority are all free, there is no filing fee, and MSD contributes toward your costs of attending an appeal hearing. Advocacy from Community Law and beneficiary advocacy groups is free too.

Where to get free help

Have you been through a review of decision or a Benefits Review Committee hearing? How long did it take, and what made the difference? Share your experience in the comments, it will help the next person facing the same letter.