Northwestern Mutual LTC Rate Increases: What the SERFF Filings Show

Northwestern Mutual is the outlier in long-term care insurance. While Genworth has sought billions in cumulative premium adjustments, John Hancock closed its standalone book in 2016 and keeps filing 25–30% annual increases, and MassMutual policyholders absorbed a 47% hike on the 200–500 series, Northwestern Mutual continues to write new standalone long-term care insurance in 2026. That single fact — active-carrier status — changes the rate-increase dynamic in ways most policyholders do not realize. An active carrier has new premium coming in, a regulatory relationship it must protect for future business, and a financial incentive to keep its existing policyholders from lapsing. The math looks different from a closed-block runoff book.

This piece compiles what is publicly verifiable about Northwestern Mutual's in-force rate-action history from SERFF (System for Electronic Rate and Form Filing) and state insurance department records. The goal is narrow: to give an in-force Northwestern Mutual policyholder a documented picture of the increase pattern — frequency, magnitude, state outcomes — so they can contextualize whatever letter is sitting on their kitchen table.

Carrier status — active, with a hybrid alongside the traditional book

Northwestern Mutual writes its long-term care business primarily through its dedicated subsidiary, Northwestern Long Term Care Insurance Company (NAIC #69000), with some legacy policies under Northwestern Mutual Life Insurance Company (NAIC #67091). Unlike the bulk of the industry, it has not exited the standalone LTC market. As of 2026, it continues to offer QuietCare, its flagship traditional standalone policy, as well as Long-Term Advantage, a hybrid linked-benefit product launched in September 2022.

Active-carrier status has two practical implications for policyholders. First, regulatory scrutiny of rate-increase requests is sharper — a state insurance department reviewing a filing from a carrier that still sells new business has a clear public-interest reason to hold the line on aggressive increases; approving a large hike from an active carrier signals to prospective buyers what they are walking into. Second, the block is not entirely closed: new premium from new policyholders dilutes, at least marginally, the actuarial pressure on the in-force book. This is the structural reason Northwestern Mutual's documented increases have run lower than those of its closed-block peers — the underlying economics are not identical. For the stark contrast, compare the Mutual of Omaha active-carrier posture alongside Northwestern Mutual's; both retain new-business capability, and both show more restrained increase trajectories than the major closed-block carriers.

The state filing record

LTC rate increases are filed state by state, form by form. No single national figure captures what a Northwestern Mutual policyholder has experienced — the outcome depends on the state of issue, the specific policy series (identified on the declarations page), and cumulative approvals applied to that form. The accessible SERFF record covers several key actions:

State	SERFF Tracking #	Filed	Requested	Approved	Notes
Pennsylvania	NWST-130590081	Oct 2016	27% avg	27%	RR.LTC.(0798), RS.LTC.(0708) series; 4,961 PA policyholders affected
Oregon	NWST-130885302	Jan 2017	27% avg	27%	Varied by benefit period: 10% (3-yr), 25% (6-yr), 30% (lifetime); OR regulator approved, noting block insufficient to cover projected claims
Iowa	—	2016–17	30%	30% (phased)	Iowa Insurance Division required two-year phase-in: 17.9% yr 1 + 10.26% yr 2 (compounding to 30%)
Indiana	NWST-131221881	Oct 2017	68%	0% — Disapproved	RR/RS/TT series; Indiana DOI flatly rejected; filing closed as Disapproved
Indiana	NWST-133141251	Feb 2022	26.7%	26.9%	Subsequent Indiana filing; approved at slightly above requested (actuarial rounding)

Several things in this table carry more weight than the headline percentages. The 2017 Indiana denial of a 68% request is the most significant data point in Northwestern Mutual's LTC filing record — and it is also the most underreported one. Indiana did not negotiate the number down; it closed the filing as Disapproved. That outcome almost certainly shaped the carrier's subsequent approach to state-by-state filings: the 2022 Indiana return came in at 26.7%, well within the range regulators in other states had approved. The pattern is a calibration, not an accident.

The Oregon regulator's approval language is also worth noting. The Division of Financial Regulation approved the 27% request with an explicit finding that the block was "failing to generate sufficient premium to pay future claims" — the same actuarial gap that drives every carrier's rate-increase program — but accepted the carrier's justification as reasonable on mortality, lapse, and interest assumptions. That is the standard state-approval framework: verify the actuarial underpinning, negotiate the phase-in, grant what the math supports. Oregon's full approval (versus Iowa's phase-in) reflects the two states' different regulatory approaches to rate shock, not different judgments about the underlying need.

The policy forms most commonly cited in these filings — RR.LTC.(0798), RS.LTC.(0708), RS.LTC.(1101), and TT.LTC.(1010) — correspond to policies issued roughly between 1998 and 2010. If your declarations page shows one of these form numbers, the filings above are most directly relevant to your situation.

What "more restrained" actually means

Northwestern Mutual's documented per-round increases — 27–30% in Pennsylvania, Oregon, and Iowa — are not small. A 27% premium increase on a policy running $3,500 a year adds nearly $1,000 annually. The comparison to closed-block peers provides context but is not consolation.

What the filing record does establish is a structural difference from the worst-case closed-block trajectories. Genworth's cumulative LTC rate-action program has a net present value of approximately $34.5 billion across decades of compounding state-by-state increases — some policyholders have absorbed cumulative increases well above 100%. John Hancock's North Carolina policyholders were told to expect roughly 25% per year for several consecutive years running. Northwestern Mutual's accessible filing record does not show that sustained annual-increment pattern. Whether that reflects the active-carrier economics described above, actuarial differences in how the 1998–2010 blocks were priced, or simply which state filings are most visible in the public record is impossible to determine from SERFF alone.

The filing data does not cover every state where Northwestern Mutual writes LTC. Several state DOIs maintain limited public records for older filings, and some rate actions from the 2010–2015 period may not surface in accessible SERFF search results. The absence of a filing in this record does not mean no increase occurred; it means no filing was located. Our Northwestern Mutual carrier file tracks confirmed filings as additional state records are compiled.

The Indiana case and what it signals

The 2017 Indiana denial deserves its own section because it illustrates something broader about the LTC rate-approval process that policyholders rarely see: regulators sometimes say no.

The Indiana Department of Insurance closed NWST-131221881 as Disapproved — a 68% increase request on the RR/RS/TT policy series, rejected outright. This was not a partial approval or a negotiated reduction. Indiana concluded that the carrier had not met the actuarial burden required to justify an increase of that magnitude, and declined. The carrier then returned five years later with a 26.7% request that was approved at essentially the full amount.

The sequence matters because it is the honest version of how state regulation actually works. State insurance departments vary in their scrutiny, their statutory caps, and their willingness to approve large increases — there is no uniformity. Policyholders in states with active review processes have more protection than the headline figures suggest. Indiana's rejection meant that policyholders holding the affected forms in that state paid no increase in 2017–2018 when their Pennsylvania counterparts absorbed 27%. The delta compounds over time.

If your policy was issued in a state you no longer live in, the increases that apply to your policy are still determined by the state of issue, not your current state of residence — a detail that catches people when they relocate after retirement.

What to do when the rate-hike letter arrives

The options inside a Northwestern Mutual rate-hike letter are the same menu every carrier is required to offer under NAIC Model Regulation §28. The five choices — pay the increase, reduce daily benefit, shorten benefit period, reduce inflation protection, or elect contingent nonforfeiture if triggered — are standardized regardless of carrier. Before responding to any deadline, read the five options inside a rate-hike letter in full.

One option that Northwestern Mutual policyholders should verify before acting: contingent nonforfeiture. Under Model Reg §28, if a cumulative rate increase crosses the threshold tied to issue age, the carrier must offer a paid-up reduced benefit — coverage that stays in place with no further premiums. The trigger is calculated from the total cumulative increase on your specific policy form and state, not any single increase. Our explainer on contingent nonforfeiture walks through how to determine whether you have crossed the threshold.

The inflation-protection rider is frequently the most surgical place to reduce a Northwestern Mutual premium without surrendering benefit period or daily benefit. QuietCare policies issued in the early 2000s often carried compound inflation riders purchased when the add-on was relatively inexpensive — dropping from 5% compound to 3% compound, or from compound to simple, can substantially offset a 27% increase. The trade-off and when it makes sense is covered in detail in our inflation rider reduction decision framework.

If you are weighing whether to keep the policy at all, the self-insurance alternative is available but requires more than an instinct — it requires a number. Our keep-vs-drop framework walks through the specific conditions under which surrender, reduction, or nonforfeiture beats paying the increase.

Model a Northwestern Mutual rate increase in the calculator →

What this is not

This is not a buyer's guide. Whether Northwestern Mutual's QuietCare is worth purchasing for someone who does not yet have LTC coverage involves underwriting, pricing, and suitability questions that belong in a current-carrier landscape analysis or a direct conversation with an independent LTC insurance specialist — not in a rate-history piece. The SERFF filing record tells you what happened to people who already bought the policy; it does not tell you whether buying it today is the right decision for you.

It is also not a comprehensive state-by-state history. The SERFF filings located for this analysis cover Pennsylvania, Oregon, Iowa, and two Indiana actions. Filings exist in other states that are not captured in the accessible public record. The Northwestern Mutual carrier file will be updated as additional state actions are confirmed. If you have received a rate-hike letter from Northwestern Mutual and the details do not match any of the forms or states in this record, the carrier file page is the right place to check for the most current information.

Coverage scope

This piece is part of the Long Term Care Desk's Rate Tracker carrier-filing series. The full set now covers Genworth, John Hancock, Mutual of Omaha, MassMutual, Transamerica, New York Life, and Northwestern Mutual — the seven carriers whose rate-action history is most relevant to in-force policyholders in 2026. State-by-state filing detail for each is compiled in the respective carrier file on a rolling basis.