The $100 Bill Credit That Can Make Your Bill Higher
A bill credit plan can raise your cost because the credit only applies once you cross a usage threshold, often 1,000 kWh. Use even one kWh less and you can lose the entire credit, not part of it. In a labeled worked example, that cliff roughly doubled the effective rate, from about 9.5¢/kWh to 19.5¢/kWh.
Across the last 90 days, Voltcheckr looked at 105 distinct bills folks uploaded to compare, and the average effective rate came out to 20.91¢/kWh. That's the real number, after every credit and fee is baked in, not the pretty number on the postcard. Compare that to the Texas average of 16.99¢/kWh that EIA reported in April 2026, and you've got a gap of almost 4 cents a kWh that a lot of people are quietly paying without knowing why. A good chunk of that gap traces back to one specific trick: the bill credit that only shows up if you use enough electricity, and vanishes completely if you don't.
How the Bill Credit Cliff Actually Works
Here's the pitch you've probably seen: 'Get a $100 bill credit every month!' It sounds like a discount, like a coupon. But almost none of these credits are unconditional. They're tied to a usage threshold, meaning you only get the credit if your bill shows you used a certain amount of electricity, often 1,000 kWh. Use 1,000 kWh or more, the credit applies. Use 999 kWh, and in most of these plans, you get nothing. Not a partial credit, not $99 instead of $100. Zero. That's the cliff, and it's built into the plan's structure on purpose, because the retailer is betting most households will clear it most months.
The Worked Example: 999 kWh vs 1,000 kWh
Let's walk through the math with made-up but realistic numbers, clearly labeled as an example, not a live plan price. Say a plan's Electricity Facts Label (the EFL, the one-page disclosure every Texas retail plan has to show you before you sign) lists an energy charge of 14 cents per kWh, a base charge of $9.95, and a TDU delivery charge (the pass-through fee your utility, like Oncor or CenterPoint, charges to move electricity to your house) of about 4.5 cents per kWh. Buried in the fine print: a $100 bill credit, but only if usage is 1,000 kWh or more. At exactly 1,000 kWh: energy charge $140, base charge $9.95, TDU about $45, total $194.95, minus the $100 credit, comes out to $94.95. Divide that by 1,000 kWh and your effective rate is about 9.5 cents per kWh, a genuinely great deal. Now drop to 999 kWh, one kWh less. Energy charge $139.86, base charge $9.95, TDU about $44.96, total $194.77. No credit this time, because you missed the threshold. Divide $194.77 by 999 kWh and your effective rate is about 19.5 cents per kWh.
In that labeled example, using one single kWh less doesn't nudge your rate. It nearly doubles it, from about 9.5 cents per kWh to about 19.5 cents per kWh. One light left off, one less load of laundry, and you fall off the cliff.
When Bill Credits Genuinely Help
- •Your household reliably uses more than the threshold every single month, not just in summer. Big families, homes with pools, or homes running window units most of the year rarely dip low, and cities like Katy (1,500 kWh/mo average) and Houston (1,420 kWh/mo average, EIA) tend to clear high thresholds without much drama.
- •The plan's underlying energy rate, before the credit, is already reasonable and not artificially inflated just to make the 'after credit' number look flashy on an ad.
- •You've checked 12 months of your own usage history and confirmed every month landed above the threshold, including your lowest month, usually spring or fall.
When They're a Trap
- •You live alone, work from home part-time, or your household usage runs closer to the Texas average of 1,095 kWh/mo (EIA 2026), which puts a 1,000 kWh threshold uncomfortably close for shoulder-season months.
- •You're in a smaller-usage market like Austin (1,060 kWh/mo average) or Pflugerville (1,080 kWh/mo average), where mild spring and fall weather can easily push a month below a 1,000 kWh line.
- •The plan has multiple tiers or thresholds (say, credits at 500, 1,000, and 2,000 kWh) which just means multiple cliffs instead of one.
- •The pre-credit energy rate on the EFL is noticeably higher than the Texas average of 16.99¢/kWh (EIA, 04/2026), meaning if you miss the credit even once, you're not just losing a discount, you're paying a genuinely bad rate that month.
The gap between the Texas average and what real bills show up as suggests a lot of households are landing below credit thresholds or missing other fine print, not just paying a straightforward flat rate.
Don't stop at the credit headline. Every EFL has a usage table on the front page showing estimated total cost at 500, 1,000, and 2,000 kWh. If the cost-per-kWh at 500 kWh is way higher than at 1,000 kWh, that jump is the cliff showing up in black and white before you ever sign anything.
Before picking a bill credit plan, pull your last 12 months of usage from your utility's online account. If even one month fell below the credit threshold, a plain flat-rate plan with no threshold might actually cost you less over a full year, even without the flashy $100 number.
If your bill's effective rate has been creeping toward that 20.91¢/kWh average we're seeing in real bills, a bill credit cliff could be part of why. Worked examples like the one above show how fast that math turns against you. Compare live rates for your home, with the credit terms laid out plainly, at Voltcheckr.
Compare live rates for my homeFrequently asked questions
A bill credit is a flat dollar amount, often $50 to $150, that a retail electric provider subtracts from your bill, but usually only if your usage that month meets or exceeds a stated threshold, commonly 1,000 kWh. Miss the threshold and the credit typically disappears entirely, not partially.
If your plan has a bill credit cliff, dropping below the usage threshold, even by 1 kWh, can wipe out a $100 credit you were counting on. Your total charges barely change, but without the credit subtracted, your effective rate (what you actually pay per kWh once everything is factored in) can nearly double.
Pull your last 12 months of usage from your utility's online portal and check whether every single month cleared the plan's credit threshold. If even one month came in low, especially in spring or fall, the credit is a gamble, not a guarantee.
A flat-rate plan charges the same cents-per-kWh no matter your usage, so your bill scales predictably. A bill credit plan bakes in a discount that only shows up above a threshold, which means your true cost per kWh can swing wildly month to month depending on how close you land to that line.
It's on the Electricity Facts Label, or EFL, the standardized disclosure every Texas retail plan must provide before you sign. Look at the usage table showing estimated costs at 500, 1,000, and 2,000 kWh. A steep price gap between the 500 and 1,000 kWh lines is the tell that a credit cliff exists.