Prepayment, flat fee, or post-billing: which method to choose?
Three approaches exist to manage electricity in an Airbnb: the fixed flat fee included in the nightly rate, post-billing from utility readings, and real-time prepayment. This detailed comparison helps you choose based on your number of properties, seasonality, and risk tolerance.
Three methods, three philosophies for billing energy
The fixed flat fee remains the most widespread method today: about 60 % of French hosts add a flat amount (often 2 to 5 EUR per night) to the nightly rate. Maximum simplicity, no admin, readable pricing for the guest. But this convenience has a downside: the flat fee doesn't track real consumption, and a winter stay with AC running 24/7 can cost three times the amount planned, with no recourse for the owner.
Post-billing based on utility readings (or a manually re-read submeter) is the fairest on paper: you rebill exactly what was consumed, at the contract rate. Problem: utility data comes with a 45-day lag, adjustment happens after guest departure, and disputes over the amount due are not rare. It's a mature but slow method, better suited to mobility leases than short stays.
Prepayment, more recently arrived on the French furnished rental market, offers a third path: the guest sees their consumption in real time, has a balance (often included in the nightly rate then rechargeable), and spontaneously adopts more sober habits. Zero conflict after the stay, zero follow-up, zero bad surprise for the host. The learning curve is short, but it exists: you have to equip the property and educate your guests.
How to choose your method in 3 steps
A simple framework to arbitrate between flat fee, rebilling, and prepayment.
Assess your exposure
Estimate your abuse risk: air-conditioned property in a hot zone, heated pool, dryer, spa. The more energy-intensive equipment is present, the riskier the flat fee. An abuse bill can exceed 300 EUR on a single 7-night stay.
Compare the three methods
Compare billing delay (immediate vs 45 days), non-payment risk, pricing accuracy, implementation cost, and guest impact. Each method has a different profile — none is universally best, it all depends on your portfolio.
Choose based on your profile
A student studio in a temperate zone is fine with a flat fee. An AC-equipped 1-bedroom in Marseille in August naturally shifts to prepayment. A secondary residence rented under mobility lease works well with utility post-billing.
Three criteria that separate the methods
Delay, risk, and accuracy: what actually changes with your choice.
Billing delay
Fixed flat fee: immediate, everything is settled at booking. Prepayment: also immediate, the balance is debited in real time. Utility post-billing: about 45 days after stay end, the time for data to flow up and be processed.
Non-payment risk
Fixed flat fee: none, since already collected. Prepayment: none either, the guest can't consume once their balance is depleted. Post-billing: high, you have to chase a guest already gone, with a non-payment rate observed at 15 to 25 % based on field feedback.
Pricing accuracy
Fixed flat fee: average, possible gap of plus or minus 40 % with actual consumption. Prepayment: high, the guest pays what they consume beyond the included quota. Post-billing: maximum, kWh-accurate rebilling from official readings.
Four dimensions to arbitrate your choice
The concrete criteria that will weigh in your host decision.
Implementation cost
Fixed flat fee: zero euros, just adjust your pricing grid. Post-billing: free if you use utility data, or 50 to 150 EUR for a simple submeter. Prepayment: kit starting at 112 EUR plus 19 EUR/month subscription for a studio or 1-bedroom.
Behavior responsiveness
The flat fee sends no signal to the guest: they pay the same whether they consume little or a lot. Post-billing sends a signal, but too late, once the stay is over. Prepayment is the only one acting in real time, with an observed consumption reduction of 25 to 30 % via the feedback loop.
Perceived pricing fairness
An eco-conscious guest hates paying a flat fee after being sober. A careless guest loves the flat fee because they consume without limit. Prepayment restores fairness: everyone pays their actual consumption, which pleases responsible profiles and holds others accountable.
Abuse protection
The flat fee doesn't protect against excess: AC on with windows open, heating at 26 C in February, five EV charges. Prepayment mechanically caps abuse by the available balance. Its main value for hosts in extreme climate zones.
Real case: an AC-equipped 1-bedroom in the south of France in August
Three methods applied to the same property, over one month of high season.
Fixed flat fee: the risky scenario
- • 4 EUR per night flat fee included in the nightly rate, about 120 EUR collected for the month.
- • Actual observed consumption: 620 kWh for the month with continuous AC.
- • Actual electricity cost for the host: about 155 EUR at regulated rate.
-350 EUR
Cumulative loss over a summer
Prepayment: the controlled scenario
- • 6 kWh per night energy quota included, clearly displayed to the guest before booking.
- • Balance visible in real time in their space, top-ups possible anytime.
- • Average observed consumption: reduced by 25 to 30 % thanks to immediate feedback.
0 EUR
Loss recorded over a summer
FAQ on billing methods
The concrete questions of hosts hesitating between the three approaches.
What flat fee amount do you recommend for a 1-bedroom in a temperate zone?
Can a flat fee legally cover more than actual consumption?
Can I combine the three methods across my portfolio?
What does Airbnb say about electricity rebilling?
Is utility post-billing really feasible for short-term rentals?
Is prepayment perceived as a negative signal by guests?
What's the break-even point for prepayment vs fixed flat fee?
Can I switch from one method to another during the year?
Discover also
Bill your guests for electricity
Complete legal and operational guide to 3 methods (fixed, post-billing, prepayment) to transfer energy costs in short-term furnished rentals.
Prepaid electricity for rentals
The legal alternative to prepaid EDF to bill 100% of energy to your furnished rental guests.
2026 Airbnb prepaid kits comparison
2026 benchmark of prepaid submeter kits for short-term rentals: Powtiva, Landis+Gyr, DIY Home Assistant, foreign solutions.
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