jam40jeff wrote:I don't think it makes things any more complicated than the red arrows. To me it's confusing that overspending and underspending are treated differently.
I think the confusion would depend on how many overspends or underspends your budget experiences.
Personally I follow the Patzer patented whack-a-mole method and actively manage our budget to avoid where possible overspends being carried over or having Rule 3 auto applied. We still have the occasional overspend left at the end of a month on which a "carry over" or "roll with the punch" decision has to be made using the red arrows, but these are usually a result of a conscious decision to allow the overspend to stand during the month. How I deal with the overspend from a red arrow perspective depends on the reason and amount of the overspend. As an example recently my wife wanted to treat herself to some pampering which was not allowed for in our budget, but she was happy to have $50 less fun money each pay day until it was paid off. We had sufficient funds to cover the expenditure, and it could have been covered up immediately with some judicious whack-a-moling, but the red arrow was used to carry over the overspend as we wanted to "feel" the impact on our budget. As each payment was made, effectively a $50 debit from my wife's fun money, the overspend reduced but continued to be carried forward (it extended over 2 months).
When it comes to underspends we generally experience more of those for two reasons. Firstly most rainy day categories are going to experience an underspend as we are budgeting an amount to these categories most months, but only spending in the month it comes due, or if Murphy pops up. Secondly we are trying to build our buffer and other than bonus income or getting an extra job the only place this can come from is if we "actively" underspend. Of course this is as much a challenge for us as controlling the overspends, but it's working OK so far.
What I envisage if this feature was introduced is a sea of green arrows on our budget screen which I would find more distracting than the occasional red arrow (correct me if I'm wrong). For me underspending is the name of the game as we try to pull ourselves out of a financial quagmire and learn to live within a budget, so the current default behaviour of rolling forward underspends to the following month is fine by me. As a pay day to pay day budgeter, which is a fortnightly (bi weekly) affair, the monthly budget screen is merely a delimiter and many overspend/underspend decisions are made before the month ends and categories adjusted accordingly. I can see the value for some YNABers and I may see this differently once we have a full buffer, but if the green arrow feature was implemented I'd prefer to see it as a user configurable on/off option.

