Phillip Pearson - Second p0st

tech notes and web hackery from the guy that brought you bzero, python community server, the blogging ecosystem, the new zealand coffee review and the internet topic exchange

2008-12-10

Vodafone 3G Broadband Early Termination math

I'm wondering whether to sign up for a 3G data plan here. Doing some math to work out what the penalties for early termination are. There are some interesting discontinuities.

I'd probably get the 1GB data (+ $10 for a second GB if I go over that in a calendar month) plan, which has two choices:

- $24.95 for 6 months, then $49.95 for 18 months, with early termination fees of $400 in the first 6 months, $300 in months 7-12, and $150 after that.

- $200 for the modem, and $59.95 per month after that.

Working it out, the no-plan option is best if you're going to quit in the first 5 months. After that, the discounts add up to make the 24-month option cheaper. There are a couple of points where it's pointless to quit due to an upcoming reduction in early termination fees. It's cheaper overall ($599.40 total) to wait out the first year (quitting before month 13) than to quit in months 10-12. Likewise, it's cheaper overall to wait out the whole term ($1048.80 total) than to quit after month 20.

Interestingly, the $150 termination fee in months 13-24 exactly balances the discount over the first six months, so if you sign a 24 month plan then quit in months 13-24, the overall average monthly cost including the termination fee will be $49.95.

If the 3G connection is tax-deductible for you and you're in the 39c tax bracket, the "effective cost" per month is $27.08 if you quit after 12 months, or $23.70 if you stay for the full 24 months.

Update 2010-02-16 - I signed up for a 24 month Broadband Pro (3G for $70/mo) contract in March, and am just about to move overseas. The early termination fee 6-12 months into the plan is now $400, but I could transfer down to a Broadband Starter (300MB for $30/mo) for free, so I've done that. I think there's 13 months left on the plan, so just continuing to pay the $30/month for that time will only cost $390. It's also possible that I'll be able to cancel for $150 next month, depending whether they calculate the early termination fee based on the original or the current plan.