Proximus bundle: the lasting discount stays under 8 euros

A Proximus Flex+ bundle with internet, mobile and TV costs 55.99 euros a month for six months, then 90.99 euros. Against the same services taken separately at Proximus, the discount that lasts does not exceed 8 euros a month. The 210 euros of promotion stop in month seven.

A Flex+ bundle is Proximus's convergent subscription: fibre internet, a mobile line and, optionally, Pickx TV and a landline, on a single bill. The figures below were checked on 6 October 2026 on the operator's official pages. Proximus runs its own copper, fibre and mobile networks.

How much does a Proximus Flex+ bundle cost in October 2026?

For a three-service bundle at entry speed, 90.99 euros a month from month seven. On 6 October 2026 Proximus shows three combinations, with a six-month promotion reserved for new internet subscribers and valid from 1 October to 1 November 2026.

Prices checked on proximus.be on 06/10/2026. Cost over 24 months calculated: six months at the promo price, eighteen months at the regular price, excluding indexation and options.

The 24-month cost appears on no page of the operator. You have to work it out, and it says something other than the poster does.

Inside the bundle, internet weighs 57.99 euros, mobile 15 and TV 18

No page publishes this split, but it falls out on its own when you subtract the bundles from one another. Between the three-service bundle (90.99 euros) and internet + TV (75.99 euros), the mobile line weighs 15 euros. Between that same bundle and internet + mobile (72.99 euros), TV weighs 18 euros. That leaves 57.99 euros for internet, and the sum checks out the other way round: 72.99 minus 15 gives 57.99.

Let us compare with the same bricks taken separately in the Proximus catalogue, on the same day.

Bundle: calculation by subtraction on the 06/10/2026 prices. Bricks alone: internet and mobile pages of proximus.be, checked the same day. The 18 euro TV follows the Flex+ launch release of 3 March 2025.

The lasting discount of a Go bundle is 6.99 euros. That is 83.88 euros over a year, for a household taking three services. It is of the same order as what Proximus itself announces: 5 euros less for life per extra mobile line.

One detail the table does not show. TV gets no discount at all.

The 210 euros of promotion stop dead in month seven

The promotion is 35 euros a month for six months on the three-service bundle, so 210 euros. It is real, it is dated, and it does not last. Over 24 months it is 9.6% of what the same bundle would have cost without it, 2,183.76 euros.

The trap lies in an asymmetry I noticed while comparing the pages: internet taken alone gets a twelve-month promotion in its catalogue (44.99 euros for Go internet, then 59.99 euros), while the bundle only offers six. Signing the bundle therefore trades twelve months of cut-price internet for six months of discount on three services. On paper the bundle still wins. But the gap narrows fast.

Prices checked on proximus.be on 06/10/2026 (bundles, internet alone, mobile alone). Lasting discount = sum of bricks alone minus regular bundle price. Mobile alone: the 15 GB plan, the closest to the 20 GB included. The pages do not all give the same speed for the Go offer, 100 Mbps in the bundle and 150 Mbps for internet alone, and I did not arbitrate.

To compare honestly, set the bricks alone against each other with their own promotions: internet 12 months at 44.99 euros, mobile at 15.99 euros then 19.99 euros, TV at 18 euros. Over 24 months the separate total runs from 2,123.52 to 2,147.52 euros depending on the length of the mobile promotion (the pages do not state it the same way, six or twelve months), against 1,973.76 euros for the Go bundle. The bundle's real saving is therefore 150 to 174 euros over two years, not 210.

Is a commitment-free bundle better than a separate contract?

No, because at Proximus everything is already commitment-free. The bundles page says the subscriber can change or stop at any time, and internet and mobile taken alone carry the same mention. The objection turns on itself: the bundle buys no extra freedom, and costs none.

It keeps a single calendar advantage. Belgian law removes any termination fee after the sixth month, which the six-month promotion matches exactly. The bundle does not lock you in; it simply puts you within reach of the month-seven increase, at the moment you are best placed to leave. Our article on the commitment-free internet and TV bundle details that six-month lock, and the one on cancelling Proximus the steps to follow.

Does a second mobile line change the sum?

A little, not enough to overturn everything. Proximus announces 5 euros less for life per extra mobile line. A 15 GB mobile thus goes from 19.99 to 14.99 euros, which, within a cent, is the price of the line in the three-service bundle.

The real lever lies elsewhere, in other operators' prices. On 19 February 2026, L'Avenir calculated that a household taking its SIM card out of the Proximus bundle for a hey! mobile S offer (Orange network) saved 10 euros a month, or 120 euros a year. With four cards the gap rose to 33 euros a month, or 396 euros a year. The offer cited ran until 31 March 2026 and required five gigabytes less: it has expired, but its order of magnitude remains useful. At 15 euros a line in the bundle, any separate mobile below that amount saves money.

Taking the mobile out of the bundle costs 60 euros of promo, nothing else

This is the finding that overturns the received idea. Removing the mobile from the three-service bundle does not raise the price of the rest: the internet + TV bundle stays at 75.99 euros afterwards. In Proximus's logic, the lasting discount on the mobile line is the 4.99 euro gap already counted, nothing more.

By unbundling at signing, you lose the promotion: 25 euros a month instead of 35 for six months, so 60 euros less over the period. In exchange, you take the mobile elsewhere, with Scarlet (on the Proximus network), hey! (Orange network) or DIGI, depending on what coverage at your address allows.

If you have a number to keep, cancel nothing yourself. Let the new operator start the transfer through Easy Switch or mobile portability, otherwise you create the outage. And for competitors' mobile prices, our cheapest mobile operator comparison keeps the figures up to date.

What happens to the price in January?

It moves. On 1 January 2026 Proximus raised its Flex bundles by 2 to 4 euros a month, and VOO raised 22 bundles by 3 euros, according to Selectra's summary of 6 October 2026. For a household the yearly impact is in the order of 30 to 60 euros.

A rise in principle opens a penalty-free exit right for three months from the notification, except when it follows from the indexation written into the contract. The regulator details this right on its page on cancellation and the FPS Economy in its FAQ on the telecom law. A lasting discount of 6.99 euros is eaten up by two increases.

Five checks before signing a Proximus bundle

• Note the promotion end date, six months after installation, and set a reminder a month before.
• Add up the bricks alone at today's catalogue, with their own promotions, before looking at the bundle.
• Check the content: 20 GB in the bundle, 15 GB for the closest standalone mobile, is not the same plan.
• Check fibre at your address: a 90.99 euro bundle on a connection that does not exist at your home is a paper bundle.
• Ask for the price of TV alone. It gets no discount and can be dropped without penalty.

Sources: checks of the Proximus bundles and internet pages, consulted on 06/10/2026; Proximus, Flex+ launch release (3 March 2025); L'Avenir, breaking up the Proximus bundle by moving SIM cards elsewhere (19 February 2026); Selectra, 2026 price increases.