- Every bill has the same core parts: usage in kWh, a fixed customer charge, supply and delivery charges, and taxes and riders.
- Your real price is the total bill divided by the kWh you used. It’s usually higher than the headline rate.
- Check every month whether the meter reading was actual or estimated.
- On a time-of-use plan, when you use power matters. The calculator below shows whether one would save you money.
Learning how to read your electric bill is the first step to lowering it. Most bills cram usage, rates, fees and taxes onto one confusing page. This guide walks through each part, shows how to find your real price per kWh, explains time-of-use rates, and gives you a calculator to compare a time-of-use plan with a flat rate.
Start at the Top: Account, Dates and Meter Reading
The top of the bill shows your account number, the service address, the billing period (usually about 30 days) and the meter reading dates. Look for the word “actual” or “estimated” next to the reading. An estimated reading means the utility guessed your use. If the guess was low, the difference shows up on a later bill as a surprise.
The days in the billing period matter too. A 35-day bill will be bigger than a 28-day bill even if nothing changed.
What a kWh Is
Your usage is measured in kilowatt-hours (kWh). One kWh is 1,000 watts used for one hour. A 100-watt device running for 10 hours uses 1 kWh. According to the EIA’s 2024 data, the average U.S. residential customer used about 863 kWh a month, with big differences by state: from about 1,202 kWh a month in Louisiana to 495 in Hawaii.
How to Read Your Electric Bill: The Main Charges
Names vary by utility, but almost every bill has these parts:
| Line on the bill | What it pays for | How it’s charged | Can you lower it? |
|---|---|---|---|
| Customer / basic / service charge | Meter, billing, account | Fixed per month | No, it’s the same even at zero use |
| Supply / generation / energy | The electricity itself | Per kWh | Yes, by using less or shifting to cheaper hours |
| Delivery / transmission & distribution | Poles, wires, substations | Per kWh, sometimes plus a fixed part | Partly, by using less |
| Riders and surcharges | Specific programs, fuel or cost adjustments | Per kWh or fixed | Mostly by using less |
| Taxes and fees | Local and state taxes; late fees if you pay after the due date | Percentage or per kWh | Indirectly |
| Credits | Solar net metering, programs, refunds | Subtracted | Check they appear |
In states with retail choice, you may see two companies on one bill: the utility that delivers the power and a separate supplier that sells it. Compare the supplier’s price with the utility’s default price; some supplier contracts jump after an introductory period.
Rate structures you may see
- Flat rate: the same price per kWh all month.
- Tiered rate: the price rises after a set amount of kWh, sometimes called a baseline allowance.
- Time-of-use (TOU): the price changes by time of day, and often by season.
- Demand charge: a charge based on your highest power draw. Rare for homes, common for businesses.
Find Your Real Price per kWh
The headline rate hides fixed fees and riders. To find your effective rate, divide the total bill by the kWh used. For example, a $165 bill for 900 kWh works out to about 18.3¢ per kWh. For comparison, the U.S. average residential price was 18.16¢ per kWh in August 2026, and it varies hugely by state, according to the EIA’s Electric Power Monthly.
Use your effective rate to compare bills. To estimate savings from an upgrade, use only the per-kWh charges that change with use, not fixed monthly fees. Example: with a $20 monthly fee and 15¢ per kWh, saving 100 kWh saves $15; the $20 fee stays.
Time-of-Use Rates Explained
A time-of-use plan splits the day into price periods. Peak hours, when demand is highest, cost the most. Off-peak hours cost less, and some plans add a mid-peak or super off-peak period. Utilities do this because electricity costs more to produce and deliver when everyone uses it at once.
Each utility sets its own hours. For example, PG&E in California lists its E-TOU-C plan with a peak of 4–9 p.m. every day, and E-TOU-D with a peak of 5–8 p.m. on weekdays only (rates effective March 2026). Your utility’s hours and prices may be completely different.
Who benefits from time-of-use
- EV owners who can charge overnight.
- People who are out during the evening peak or can shift laundry, dishes and cooling.
- Homes with a battery, or solar plus battery, that can cover peak hours.
Who may pay more
- Households that cook, cool and run laundry during the peak and can’t move it.
- People who switch without checking for a higher monthly fee on the TOU plan.
Questions to ask your utility before switching
- What are the exact peak, mid-peak and off-peak hours, and do they change by season?
- Are weekends and holidays off-peak?
- Is there an extra monthly fee on this plan?
- Can I see a free comparison using my own hourly data?
- Can I switch back, and is there a trial or bill protection period?
Estimate only, using energy charges per kWh. Real bills add tiers, seasons, riders and taxes. Many utilities offer a free rate comparison based on your actual hourly data; use it before you switch.
Read the Usage History
Most bills include a 12- or 13-month chart. Seasonal swings are normal, because heating and cooling drive most changes. A jump with no clear cause deserves a closer look: a new appliance, a failing HVAC system, a heat pump stuck on emergency heat, or an estimated reading. Our guide on why an electric bill is so high walks through the usual suspects.
How to Read Your Electric Bill Each Month: Five Checks
What happened to real customers
A Baltimore homeowner paid about $300 a month on budget billing. When the account was reconciled, he got a bill of about $7,000. A wiring error after a thermostat swap had kept his heat pump running against itself for months. Budget billing smooths payments, but it can hide rising usage, so read the kWh line even when the amount due looks normal.
Source: WMAR-2 News, February 2026- Usage and price figures from the EIA
- Time-of-use schedules from PG&E’s published plans, as an example
- Bill line names from common utility bill glossaries
- A real customer case, linked and marked as an individual case
Every utility formats its bill differently. If a line on yours isn’t covered here, your utility’s bill glossary will explain it. No company pays to appear here.
Frequently Asked Questions
Why is my bill higher than my usage times the rate?
Fixed charges, delivery charges, riders and taxes are added on top. That’s why the effective rate is usually higher than the headline rate.
What does “estimated reading” mean?
The utility didn’t read your meter and guessed your use. The next actual reading corrects it, which can make the next bill higher or lower.
Are time-of-use rates worth it?
They are if you can move a good share of your use out of the peak window. If most of your use falls in the peak and can’t move, a flat rate may be cheaper.
Can I switch back from a time-of-use plan?
Often yes, but rules differ. Some utilities have a trial period or bill protection. Ask before you switch.
What is budget billing?
It spreads your yearly cost into equal monthly payments, then settles the difference later. It helps cash flow but can hide rising usage.
Our Verdict
Once you know how to read your electric bill, three numbers tell you most of the story: your kWh, your effective rate, and whether the reading was actual. Check them every month. If your utility offers time-of-use, run the calculator with your real rates and peak share before you switch.
Keep reading
- Average Electric Bill in the U.S.: 2024 Data for Every State, and How to Compare Yours: compare your bill with your state.
- Why Is My Electric Bill So High? Find the Cause With a Bill Detective and a DIY Energy Audit: find why your bill went up.
- Best Home EV Chargers in 2026: Level 2 Picks, Install Costs and Real Savings: Level 2 chargers and install costs.