The date on the notice is the one that counts
Not the date on your last bill. Not a number you half-remember about "30 days." The date printed on the paper in your hand is when the utility can actually cut service, and everything below only works if you act before it.
States set different minimum notice periods, and utilities count from different starting points. Illinois requires the shutoff to wait "at least 10 days from the sending or delivery of the notice" (Illinois Legal Aid Online). Ohio requires its electric and gas utilities to give "at least 14 days notice before disconnection," plus a second 10-day notice for any shutoff between November 1 and April 15 (Ohio Consumers' Counsel). New York gives gas, electric and steam customers 15 days to resolve the problem after the final termination notice is sent (NY Department of Public Service). None of those numbers is necessarily yours. Find your state page on this site for your state's actual minimum and your utility's own rule where it's stricter, then count from the date on your notice, not from memory. One more thing worth knowing before you read on: nearly every rule quoted here comes from an electric or gas regulator. If your notice is for water, check your state page before you count on any of these numbers.
Call before that date, not after
Call the utility before the shutoff date, even if you can't pay anything today. Once service is off, "the utility is not required to offer any payment plan," and can "demand payment in full, plus fees and a deposit" (Illinois Legal Aid Online). Everything in this guide is easier, and sometimes only possible, while the notice is still just a notice.
Ask for one of these, by name.
A deferred payment agreement spreads what you owe over months instead of asking for it all at once. New York shows the shape these can take. There, you can write your own terms, and the utility "must accept any terms you propose which are fair and equitable, considering your financial circumstances." The agreement "may provide for any size down payment or no down payment at all," though the utility "can refuse any terms where you would be paying less than $10 a month on what you owe" (NY DPS). That is New York's rule, not a national one. In Ohio, if you and the utility cannot work out an individual plan, electric and gas utilities have to offer standardized ones: the "One-Ninth," "One-Sixth," and winter "One-Third" plans, plus the income-based PIPP Plus (Ohio Consumers' Counsel). Your utility's numbers will differ. The ask is the same: a plan sized to what you can actually pay, not the first figure the representative offers.
A budget or levelized billing plan is a different tool. It doesn't erase what you owe. New York describes its version as a plan that "helps even out bills that are high in one season and low in another so that your energy charges stay pretty much the same throughout the year," and says plainly that it "does not reduce your overall energy expenses for the year" (NY DPS). So a $400 January bill stops blindsiding you. You still owe the same total. It won't stop this shutoff, but ask about it once you're current so the next winter doesn't put you back here.
For electricity, a federal standard under the Public Utility Regulatory Policies Act encourages, rather than requires, that utilities not disconnect customers without "reasonable prior notice" and "a reasonable opportunity to dispute the reasons for such termination" (Congressional Research Service). The same report says "details of how these requirements are implemented vary by state." Which payment plans your utility has to offer is state and utility specific. Check your state page.
What the utility can and can't hold against you
A utility can generally require a security deposit and can point to an unpaid deposit or an unpaid past-due bill as grounds for shutoff; Illinois lists both among its valid reasons (Illinois Legal Aid Online). What it typically can't do is disconnect you for a bill that isn't yours. Ohio's rule states plainly that "consumers cannot be disconnected or denied reconnection based on the past due bills of a former customer no longer living in the home" (Ohio Consumers' Counsel). Pennsylvania goes further on disputed charges specifically: a utility "may not mail or deliver a notice of termination if a notice of initial inquiry, dispute, informal or formal complaint has been filed and is unresolved and if the subject matter of the dispute forms the grounds for the proposed termination" (52 Pa. Code § 56.92), and a notice sent in violation of that rule "is void." Both protections attach to the matter in dispute, not to the rest of what you owe. If a demand feels like it goes beyond what your state allows, your state's public utility commission, not this paragraph, is where to confirm it.
Energy assistance can cover the bill itself
The Low Income Home Energy Assistance Program (LIHEAP) is a federal program, run through state and local agencies, built to help with "bills in arrears or in danger of disconnection," not just routine heating costs (ACF LIHEAP fact sheet). It served 5.9 million households in FY2024, including 1.3 million that got winter or year-round crisis assistance specifically (ACF). Many states pay the money to your energy supplier instead of to you. Where a state does that, federal law requires it to tell you how much was paid on your behalf, and the supplier may then bill you only "the difference between the actual cost of the home energy and the amount of the payment made by the State" (42 U.S.C. § 8624(b)(7)). Whether your state pays suppliers directly is your state's choice, so ask when you apply. To find out where and how to apply in your area, ACF points people to EnergyHelp.us or the National Energy Assistance Referral hotline at 1-866-674-6327, weekdays 9 a.m. to 7 p.m. Eastern (ACF). This site's LIHEAP guide covers how the crisis track works and what to bring to the appointment.
Call 211
Dial 211 and a person answers. United Way runs it around the clock, by phone, text and online (United Way 211). Utility bills are close to its busiest subject: "the 211 network responds to more requests for help paying utilities bills than almost any other topic," and in 2019 it made "more than 2.1 million connections to resources to help people pay utilities bills" (United Way 211). What it gives you is a referral to local programs, which is the part no website keeps current. When you are referred somewhere, ask whether that fund can pay your utility account directly, and whether the payment will post before your shutoff date.
If someone in your home is seriously ill
Tell your utility now, not after the date passes. New York's rule shows the general shape: once a doctor certifies that losing service would worsen a medical emergency, the utility "must maintain service for 30 days," renewable for another 30 if the doctor explains why the condition still requires it (NY DPS). Ohio lets a 30-day medical certificate be used "up to three times in a 12-month period" with its electric and gas utilities (Ohio Consumers' Counsel). Who qualifies, what the certificate has to say, and how long it lasts varies by state. A 2018 National Consumer Law Center brief puts the limits bluntly: these protections "apply to regulated utilities, which provide electricity service and natural gas," and "depending on the state's laws, protections may only apply to utility companies but may not protect customers with municipal or co-op utility service" (NCLC, published by the Administration for Community Living). This buys time. You still owe the money. See this site's medical certification guide for how to get the paperwork right the first time.
Filing a complaint can pause the clock, but confirm it for your state
In some states, a complaint does more than start a paper trail. In New York, once you dispute a charge, your service "cannot be disconnected for non-payment of that disputed amount" while the utility investigates, and that protection runs for "15 days after the decision" is made (NY DPS). In Pennsylvania, an unresolved dispute or complaint blocks a new termination notice on that same issue (52 Pa. Code § 56.92). That isn't true everywhere, and where it is true, it usually protects only the disputed amount, not your whole balance. Before you count on a complaint to buy you time, call your state's public utility commission and ask directly whether filing pauses disconnection where you live, and check your state page on this site for the commission's number.
If it's already off
For electric service, the Congressional Research Service describes the usual sequence simply: "utilities will reconnect the customer after receiving payment and (if applicable) a reconnection fee" (Congressional Research Service). New York requires service back "within 24 hours, where possible" once you have paid or signed an agreement and made any down payment, once the local Department of Social Services guarantees payment, once the utility is told serious harm to health or safety is likely without service, or when the Public Service Commission directs it (NY DPS). Ohio's rule requires restoration "by the end of the next business day," or the same day if you pay and notify the utility by 12:30 p.m. (3:30 p.m. with a medical certificate). Ohio reconnection fees are "generally between $15 and $60," and any new deposit "cannot exceed one month's estimated charges plus 30 percent" (Ohio Consumers' Counsel). Those are two states' numbers, not a national rule. Your state page has your state's and your utility's actual fees, deposit caps, and restoration timelines.