Average Billing Texas Electricity: What to Know in 2026

Picture this: a Dallas family pays $87 in March, then $340 in August when the AC runs nonstop, then $91 again in October. Same house, same rate, wildly different bills. Average billing, sometimes called budget billing, exists to fix that problem.

When you enroll, your Retail Electric Provider (REP) estimates your total electricity cost for the coming year, usually based on 12 months of usage history at your address. It divides that estimate by 12 and charges you the same flat dollar amount every month. Nothing about your underlying rate changes. The kilowatt-hour price on your Electricity Facts Label stays exactly the same. Only the payment schedule changes.

Texas is a fully deregulated electricity market, which means your REP is a private company competing for your business, not a regulated utility setting a fixed price. That matters for average billing because the program terms, including the true-up policy, cancellation rules, and any fees, are set by each REP individually. There is no statewide mandate requiring REPs to offer average billing, and no Public Utility Commission of Texas (PUCT) rule that standardizes how they run it.

The true-up is the settlement at the end of the program period, typically 12 months. If you used more electricity than the REP estimated, you owe the difference in a lump sum. If you used less, you receive a credit or refund.

This is where average billing trips people up. Customers assume that paying a steady $150 every month means their annual bill will be exactly $1,800. It won't be, unless the estimate was perfect. A hotter-than-expected summer, a new home office setup, or a teenager home from college for three months can all push actual usage above the estimate. The true-up then arrives as a single charge that feels like a penalty even though it simply reflects electricity the household actually consumed.

REPs handle true-ups differently. Some settle at the 12-month mark as a single charge or credit. Others perform a mid-year reconciliation to keep the running balance from growing too large. Read the terms carefully before enrolling, and check your monthly statement, which should show your actual usage alongside your averaged payment, so the gap never becomes a surprise.

TXU Energy is one of the largest REPs in Texas and has offered an average billing option for residential customers for years. The program averages projected annual costs into equal monthly installments, with a settlement at the end of the 12-month cycle.

A few things TXU Energy customers should know. First, the averaged amount can be recalculated periodically if actual usage drifts significantly from the estimate, so the monthly payment is not always guaranteed to stay fixed for the full year. Second, if you cancel your plan or switch REPs mid-cycle, TXU Energy will settle the outstanding balance at that point, which may mean a larger-than-expected final bill if you've been running a deficit.

For current program details, eligibility rules, and any associated fees, check TXU Energy's website directly or call their customer service line. Rates and program terms change, and only the current Electricity Facts Label for your specific plan is the authoritative source.

Reliant (now operating under the NRG brand umbrella) has also offered average billing to residential customers in Texas. The structure is similar to other REPs: estimated annual cost divided by 12, with a true-up at the end of the enrollment period.

Reliant customers enrolled in average billing should pay particular attention to the monthly usage summary included on their bill. That section shows actual consumption versus the average payment made to date, giving a running picture of whether you're on track or building a balance that will come due at true-up time.

If you switched to Reliant or are considering it, compare the all-in rate on the Electricity Facts Label first. Average billing is a cash-flow tool, not a discount. A plan with average billing at a higher cents-per-kWh rate will still cost more annually than a plan without it at a lower rate. Visit ElectricRates.org's Texas page to see live rates across active REPs before committing.

This is one of the most common questions Texas electricity customers ask, and it has a few distinct causes.

The estimate was set too high. If the REP based the estimate on a previous tenant who used more electricity than you do, your averaged payment will be inflated from the start. You'll accumulate a credit balance that should come back to you at true-up.

Your rate tier changed at a different usage level. Texas electricity plans frequently use kWh-tier pricing, where the effective rate at 500 kWh, 1,000 kWh, and 2,000 kWh can differ substantially. Some plans include bill credits that only trigger at specific usage thresholds, making the per-kWh cost higher at moderate usage than the headline advertised rate suggests. Your Electricity Facts Label must disclose the average price at all three tiers (500, 1,000, and 2,000 kWh), so compare those numbers, not just the rate shown in advertisements.

TDU delivery fees shifted. Your REP sells you the electricity, but your Transmission and Distribution Utility (Oncor, CenterPoint, AEP Texas, or TNMP depending on where you live) delivers it and charges pass-through delivery fees. Those fees can change, and when they do, the all-in cost of your plan changes even if your contracted energy rate stays flat. Average billing estimates made before a TDU rate adjustment may not fully reflect the new delivery cost.

You're in the accumulation phase. If you enrolled in average billing in winter and usage is low, you may be overpaying relative to current consumption. The math balances out by summer. The monthly statement should show whether your account is in a credit or deficit position.

Average billing suits households that value cash-flow predictability over total-cost optimization. A fixed monthly payment makes budgeting easier, especially for renters, fixed-income households, or anyone who has struggled to cover a $400 August electricity bill after a run of 100-degree days.

It is less useful, and potentially costly, for households that are good at saving money month-to-month. If you can set aside the difference between a low February bill and a high August bill in a savings account, you earn a little interest on that float rather than letting the REP hold it interest-free.

Average billing also adds friction to switching. Texas deregulation means you can change REPs at the end of any contract term, and shopping regularly is one of the most reliable ways to lower your electricity costs. As of August 2026, the lowest all-in advertised rate in the Oncor service territory (Dallas area) at 1,000 kWh was roughly 6.9 cents per kWh, while the median across 127 active plans was about 16.1 cents per kWh. That spread is large. A household locked into average billing under a mid-tier plan may be slow to switch even when better deals appear, partly because the true-up balance creates a psychological barrier.

The practical advice: if you want the smoothness of average billing, enroll in it on the best-rate plan you can find, not just the plan your current REP defaults you into.

Start at powertochoose.org, the PUCT-administered shopping site where every licensed REP in Texas must list its plans. You can filter by your TDU territory, contract length, and estimated monthly usage. The site displays the average price per kWh at 500, 1,000, and 2,000 kWh for every plan, which is the only apples-to-apples comparison that accounts for tier pricing and bill credits.

For a broader view that includes plan ratings, contract summaries, and live rate tracking, ElectricRates.org's Texas electricity page aggregates current offers across the state. Check rates at the usage level closest to your actual monthly average, not the 1,000 kWh figure used in advertising if your home consistently uses significantly more or less.

Once you identify a competitive plan, read its Electricity Facts Label before signing up. The EFL is a standardized disclosure document required by the PUCT. It shows the all-in average price at each usage tier, contract length, early termination fees, and whether the rate is fixed or variable. If a REP's average billing program has specific terms (true-up timing, recalculation triggers, cancellation rules), those should appear in the terms of service attached to the EFL.

Do the comparison math annually. The best plan for last year is not automatically the best plan this year.

Yes, in a meaningful way. Your TDU (Oncor in the Dallas-Fort Worth area, CenterPoint in Houston, AEP Texas in west and south Texas, and TNMP in parts of north-central, Gulf Coast, and west Texas) sets the delivery fees that appear on your bill regardless of which REP you choose. Those fees are pass-through costs: REPs charge exactly what the TDU charges, no markup, no discount.

Because delivery fees vary by TDU territory, the all-in cost of the same REP plan can differ depending on where you live. An average billing estimate built on Houston-area delivery fees will not apply to an Oncor-territory address. If you move, your REP should recalculate the average billing estimate based on the new address and TDU.

The rate figures published on ElectricRates.org (and cited in this post) are for the Oncor territory at 1,000 kWh, which is a commonly used reference point. For your specific territory and usage level, pull the EFL for any plan you're considering, and use powertochoose.org to filter by your TDU.

Average billing is a payment smoothing tool, nothing more. It spreads your electricity costs into equal monthly installments, which helps with budgeting but does not reduce what you pay in total. The true-up charge at the end of the cycle is not a penalty; it is simply the math catching up.

If you're already on average billing and your payments feel higher than your usage warrants, check your monthly statement for the running credit or deficit balance, review the tier pricing on your EFL, and confirm whether a recent TDU delivery fee change affected the all-in rate.

If you're deciding whether to enroll, compare rates first. As of August 2026, there's a significant gap between the lowest and median rates available in Texas, and that gap dwarfs any cash-flow benefit from a billing smoothing program. Shop on powertochoose.org or at ElectricRates.org, find the best all-in rate for your TDU territory and usage level, then decide whether average billing on that plan makes sense for your household.